GT gets Superchipped

[Jaymz]

I have finally got 1000k's on my GT TDi which has been a effort in two weeks, but a fun one i'll give you that.
I have been trying to get some k's on before I got Superchipped and i also wanted to fully experience all the differences it makes.

Lets go from the start. Peter from Superchips arrived from NZ to tune my car and was under the impression we had to pull the ECU to moddify it as there was no direct line in to the ECU from the OBD port. This is because mine is one of the first to be done in Australasia.
Well a quick call to the UK sorted this out and I can now confirm all upgrades to the Siemens/VDO ECU's can actually now be done via the OBD port.
This method is all to common for you all with GTi's and its a testimont to the R&D that is put in over in the UK at Superchips, especially when you consider the short time this car has been on the market.

I actually watched Peter do a GTi aswell while he was here and it takes roughly 15-20mins to pull all the good stuff from a GTi and the GT TDi only takes 10mins. This is probably due to all the electronic controls and the amount of information that is stored for a petrol engine compared to the diesel. Even though the diesels have an ECU they still have some mechanical control to the engine.

So after the info was pulled from the ECU it was sent to the UK in an email. On contrary to popular belief, Superchips can actually supply you with any map you ask for. If you want a street tune with max torque, they can supply it. If you want a race tune with max power in the upper end of the rev range, they can also supply it. Upgrades can also be done to your existing maps by Peter at a small fee. I instructed Peter to tell the guys in the UK to supply me with a map that will give me the most torque the engine can give with the flattest torque curve available. They gladly responed within 20-25mins with my new maps.
Bear in mind though guys the time difference between here and the UK as this had to be done at 6:30PM EST.

So my new maps are making the engine produce a tad over 200Hp and somewhere around 420-430Nm's. I'll get to how it performs in a minute.

Putting the new maps in was quicker than pulling them out. This process took 5-8mins. Once they were in we started it to make sure it ran and that was it. All that was needed now was a good run to make sure there were no hiccups.

First impressions:
Well driving it that night i immediately felt the engines willingness to rev alot faster than before. Once on boost it spins to 4000 very quickly, which by the seat of the pants feels quicker than a stock GTi to spool up. This engine is still tight but they assure me that it can be revved to 5000 i won't be trying that till it has a few more k's on it!
The throttle response has also improved dramatically. Not as good as you guys with petrol engines but a major improvement over stock none the less.

After a short drive that night i decided to park it up so i could really test the tuning with a cold start the next morning.

Saturday morn up bright and early to give it a bath & test it out. The tuning is simply awesome, no hiccups anywhere. It idles and runs just like the factory maps only with alot more power.

When taking it for the first drive with the exhaust manifold cold i immediately notice how much torque and power this has and how quickly it gets up to speed. This is now very quick for a oil'ler!

The factory maps have a big torque hump in it & when it comes on boost at roughly 1800Rpm it comes on quite hard to 2500 or so then tappers off again around 3000 but still producing good torque to 3200-3500.

The new Superchip maps provide torque 300-500Rpm lower and due to the quicker throttle response & more boost, gives a big surge all the way to 4000+Rpm. Its quicker but also alot smoother and never tappers off. I haven't revved it passed 4000 yet but will give a report back when it has 5000k's on it.

After the bath i took it for a hot lap where i have taken all the good cars when working for dealerships. This is a good test as i can compare to various cars at various speeds and corners. This is not about thrashing the cars though as its about its ability to brake, corner, how it puts its power down and how much mid corner speed it can cary.
I have to admit, this oil'ler is bloody quick and will surprise quite a few. Its definately quicker than the BMW 120 & 320 sport both in petrol & diesel. Its also quicker than a 323 sport and would also fill the mirrors of a 325 sport. Also take into mind i am including cornering speed. So thats really saying something.

So a quick overview:

Cold start - No problem, as factory
Throttle response - Increased dramatically
More torque down low - Check
Ironed out torque curve - Check
More torque everywhere - Check
More power everywhere - Check
Better on fuel - yet to be seen, but makes sense with the torque increase
Worth the sticker price - you bet!


Now i suppose this is what you all have been waiting for, is it as quick as a GTi? I would have to say by the seat of the pants......it would be very close but yes. So there you have it.
The beauty of it is though, now it has GTi power with 200Hp on tap it can still deliver 1000+klm's to a tank of juice on the open road. So am i happy, you're dam right

Cheers,
Jamie

[ranton-inc]

Peter James from Superchips NZ is an absolute Legend nothing but thumbs up for him!

he did an excellent tune on my 2000 AGU GTI

top bloke!

glad to see your car is screamin!

[Timbo]

Sounds excellent!

It'd be great to see some 'before' and 'after' dyno charts on this, to show how the power and torque curves have changed.

What sort of $$ for the SuperChip tune (and Peter's attention)?

[DVR68U]

nice write up and good info, glad it worked well for you.
cheers brenton

[STV4SYT]

DId u get it dyno'd before/after?


if so what figures was it pulling.


Im keen to maybe increase the go in mine but only concern is the Torque limit of the DSG gearbox.....

[Jaymz]

Sorry guys didn't put it on the dyno, as much as i wouldv'e loved to but the engine is still very fresh and didn't want to push it that hard. When it gets another 500k's on it i will start to open it up and use the whole rev range.

Is there a dyno day coming up? Would be happy to stick it on and give it a run.

Timbo: Peter charged me the retail price of $1550 but thats not bad when you consider he covered the cost of flying over to do it. Well worth the $$

steve_tdi: Peter did say that Superchips offer a tune with less torque for the DSG so no problem there. I did ask the question though if he knew of a limit to the factory clutches and his reply was, 'i there is i haven't found it'!
So i thinks its safe. At the end of the day though if its still under new car warranty the clutches will be covered if they fail as no one can see the state of tune the ECU has when its been Superchipped. Just keep it to yourself & no one will be the wiser.

Cheers,
Jamie

[gldgti]

Just keep it to yourself & no one will be the wiser.

Cheers,
Jamie

unless they take it for a drive :-)

[ted]

So a quick overview:

Cold start - No problem, as factory
Throttle response - Increased dramatically
More torque down low - Check
Ironed out torque curve - Check
More torque everywhere - Check
More power everywhere - Check
Better on fuel - yet to be seen, but makes sense with the torque increase
Worth the sticker price - you bet!



So this all sounds fantastic, but the cynic in me is saying "too good to be true".

If this is such an improvement, how come VW factory didn't tune it this way? I could understand (though not be impressed) if they deliberately detuned it if a faster diesel was expected to slot in above the GT - a diesel GTI perhaps...or R32 (hmm, imagine a 6-pot turbo diesel with 4Motion).

So, do the VW engineers know something we don't?

Not sure I understand why "more torque = better fuel economy" either, could you explain that pls? Is it simply because you now don't need to open the throttle as much to make a nice quick take off? What about cruising?

[SoVeReIgN]

So this all sounds fantastic, but the cynic in me is saying "too good to be true".

If this is such an improvement, how come VW factory didn't tune it this way? I could understand (though not be impressed) if they deliberately detuned it if a faster diesel was expected to slot in above the GT - a diesel GTI perhaps...or R32 (hmm, imagine a 6-pot turbo diesel with 4Motion).

So, do the VW engineers know something we don't?


Just like the power increases for turbo petrol engines, VW would be playing it safe, not only do they want to keep some leeway for future revisions etc, but they need to cater to the lowest common denominator.. The people that skip/lengthen service intervals, don't let the car warm up etc etc.

[Greg Roles]

Hey Ted,

You need to remember 95% of people would be aware there is an engine in their car, and it's approximate position, but that's about it. As SoV rightly points out, car manufacturers need to factor in the "unaware" factor, and by understressing an engine, it will last longer, at least the term of the warranty.
Extra power brings with it extra wear and tear, on the entire vehicle, and without spending a LOT of money it's hard to get both. Mass produced cars are designed for the masses, if you want a car that is pushing the performance envelope, well you need a few hundred thousdand to spend. Even at the pointy end, you can always find more power if you can afford to.

Cars need to be designed to run in all sorts of environments, driving conditions and driving styles. Often cars are over or under fuelled to purposely make them perform in extremes, at the detriment of the "normal" consumer. All the tuners do is optimise the ecu to suit the environment, and with custom programs for example, it's usual to find more HP in a custom tune down south ( with cooler, less humid air ) than it is up here in QLD.

VW has to cater for these factors, and as they are running a business, the more universal they can make a car to suit various countries, the better for the bottom line.

End of the day, it's nice to know you can take an impressive car, and make it a fireball if you so choose. WHY be upset about GREAT choices???:D

[gldgti]

Hey Ted,

You need to remember 95% of people would be aware there is an engine in their car, and it's approximate position, but that's about it. As SoV rightly points out, car manufacturers need to factor in the "unaware" factor, and by understressing an engine, it will last longer, at least the term of the warranty.
Extra power brings with it extra wear and tear, on the entire vehicle, and without spending a LOT of money it's hard to get both. Mass produced cars are designed for the masses, if you want a car that is pushing the performance envelope, well you need a few hundred thousdand to spend. Even at the pointy end, you can always find more power if you can afford to.

Cars need to be designed to run in all sorts of environments, driving conditions and driving styles. Often cars are over or under fuelled to purposely make them perform in extremes, at the detriment of the "normal" consumer. All the tuners do is optimise the ecu to suit the environment, and with custom programs for example, it's usual to find more HP in a custom tune down south ( with cooler, less humid air ) than it is up here in QLD.

VW has to cater for these factors, and as they are running a business, the more universal they can make a car to suit various countries, the better for the bottom line.

End of the day, it's nice to know you can take an impressive car, and make it a fireball if you so choose. WHY be upset about GREAT choices???:D

nicely put....

i think that if you werent prepared for the returns (good and bad) from modification, you woulndt go there..... twice. ;-)

[ted]

Cheers guys, thanks for the explanation.

BTW, not upset, just curious.

Think I'll start with the driver course for now...any recommendations for Melbourne?

[Greg Roles]

Great Ocean Road. Weekly.

I am SO jealous....

[Blitzen]

Do these guys (Superchip) do petrol cars too?

[ted]

Great Ocean Road. Weekly.

I am SO jealous....

Ahh yes. It's been a while since I've been there, but I think the speed limit has been dropped from 80 to 60 (or lower in places), so not quite as fun as it once was.

[SoVeReIgN]

Cheers guys, thanks for the explanation.

BTW, not upset, just curious.



No dramas - A fantastic example is the 1.8t in the Audi A4 - It was always a 110kw engine, still is in the Polo GTi. But towards the end of it's life in the A4 they upped it to 120 and 132kw with no hardware changes. When chipped they still all produce the same power

[orsegtsport]

So Jaymz what's the verdict after a month of driving? Do you have anything to add about the car's performance that you haven't mentioned already? Fuel economy maybe?

[shadowmaker]

So this all sounds fantastic, but the cynic in me is saying "too good to be true".

So, do the VW engineers know something we don't?

Not sure I understand why "more torque = better fuel economy" either, could you explain that pls? Is it simply because you now don't need to open the throttle as much to make a nice quick take off? What about cruising?

It's the NOx emissions that VW has to deal with. To do that they need to run a bit too rich mixture, use lower CR, use EGR... etc. To optimize torque/power/economy by reprogramming it means that NOx emissions are getting higher with leaner mixture. Leaner mixture means better efficiency due to better burning of diesel.

Gasoline cars can also have more torque by reprogramming, but they don't have better economy as the A/F ratio stays the same (OK, maybe you can make things little more accurate, but that's it). More torque is achieved by adding more air (=boost) AND more fuel.

[Jaymz]

So Jaymz what's the verdict after a month of driving? Do you have anything to add about the car's performance that you haven't mentioned already? Fuel economy maybe?

Good friend of mine is the M specialist at BMW, gave him the keys and he was blown away at the driveability and sheer low down torque it has.
By the seat of his pants he feels its good for 0-100 in the 6's! Its amazing how quick you can make a car go whem you really know how to peddle it.

To me though its not really all about the power, its more about the driveability and i have to say it's really good. I will be putting it on the dyno next weekend so it will be good to get a graph out of it. Cogdoc is putting his on also so it will be good to see what difference mine has over a standard GT.

Fuel economy is always going to be a hard one. I would really like to tell you that its returning 1000klm from a tank around town but that would just be a lie. After doing alot of research on tdiclub its all going to come down to driving style.
The first few tanks i was averaging the same as standard and returning somewhere around the mid 600's. So i can confirm that it really isn't any thirstier under the same driving conditions. With that said though it will definately use more fuel if the boot is put into it all the time.

I am glad to say though after spending some time reading the many pages on tdiclub about economy, that i my last tank has me averaging somewhere around 850-900.
Click here for some good tips on getting better economy (http://forums.tdiclub.com/showthread.php?t=200694)
Also i believe that once the engine has a few k's on it will start freeing up and will help with the economy also. My car now has 2500 k's on it and i believe this has helped with the good economy from my last tank, i really can't wait til it has 10,000k's so i can see how good the economy gets!

Hope this has been helpful. I will post the dyno graphs up when i get them.

Cheers,
Jamie

[orsegtsport]

Thanks Jaymz, sounds like money well spent. I would have gone down this route myself (before spending money on suspension and body kits), but I have the DSG gearbox and will be limited to about a 25nm increase in torque. I would get the same power gain, but nowhere near the same torque increase that you got.

I'm very interested in the dyno results though, because I have heard that the GT TDI's consistently produce more power and torque than the figures claimed by VW. I have heard of standard cars producing over 180 bhp and over 360 nm, which means that the gains claimed by the tuning companies may be somewhat overstated.

Still, as you say, it's not all about power, it's about driveability too, and it sounds as though that has been significantly improved....hmmm decisions, decisions...

Anyway, I need to get my panels straightened before I worry about anything else - I had a run in with a rather large member of the local kangaroo population!

[jayjay]

i thought the A4 used the KO3 where as the 132kw engine was a larger turbo? i think i remember reading somewhere that with diesel engines, their efficiency is already quite high due to compression ignition and the only way they make more power is revs and more fuel + boost! :S

[Jaymz]

Thanks Jaymz, sounds like money well spent. I would have gone down this route myself (before spending money on suspension and body kits), but I have the DSG gearbox and will be limited to about a 25nm increase in torque. I would get the same power gain, but nowhere near the same torque increase that you got.

Is the DSG really that fragile? I mean i haven't done alot of research about them, but i haven't ever heard of anyone wearing one out or damaging clutches either.


I'm very interested in the dyno results though, because I have heard that the GT TDI's consistently produce more power and torque than the figures claimed by VW. I have heard of standard cars producing over 180 bhp and over 360 nm, which means that the gains claimed by the tuning companies may be somewhat overstated.

Still, as you say, it's not all about power, it's about driveability too, and it sounds as though that has been significantly improved....hmmm decisions, decisions...

I've heard the power figures quoted by VW are low also and yes if someone was just after chasing numbers then if the DPF is removed i've heard the turbo will support 240HP and also Superchips can supply a map just for power if wanted.

I'm not expecting my graphs to show huge power/torque gains as i didn't ask for those maps but hopefully the graph will show the torque coming in sooner and being flatter through the rev range. Thats where i think the best gains are for us diesel guys.

Even if you got Superchipped and only saw a gain of 25Nm's, it would still be very nice to drive as it will rev quicker, come on boost quicker, have a broader torque band and gain another 20Kw or so.
I would be happy to give you a drive in mine to feel what differences it really has as Its all very well for me to post up here how good it is but i tell you it really has transformed the car and you would not be disappointed if you did it to yours.


Anyway, I need to get my panels straightened before I worry about anything else - I had a run in with a rather large member of the local kangaroo population!

Oh no:( Hopefully its not to bad

Cheers,
Jamie

[Mischa]

http://img134.imageshack.us/img134/3971/exhausteb5.jpg

what do you guys reckon? superchip + my exhaust design = gti muncher? :)

[jayjay]

nice engineering assignment... i like

[gregozedobe]

[img]what do you guys reckon? superchip + my exhaust design = gti muncher? :)

Almost certainly have better accelaration than a GTI from lower revs, but once the GTI motor gets up to 4,000rpm or so you would have trouble keeping up (until you put the bigger turbo, injectors, intercooler etc etc on yours :) )

[mrx]

I would be willing to bet it'd be about half a second off the pace (to 100km/h) compared to a standard GTI and about a second off the pace of a chipped one. Still bloody quick for a diesel though!

[shadowmaker]

what do you guys reckon? superchip + my exhaust design = gti muncher? :)

Why don't you get rid of the catalysator too?

How about that DPF. I mean I know my programmer guy can make a DPF delete, but there really aren't many in the world who can pull that out. Or do you just leave emission warning light on?

[Mischa]

Why don't you get rid of the catalysator too?

How about that DPF. I mean I know my programmer guy can make a DPF delete, but there really aren't many in the world who can pull that out. Or do you just leave emission warning light on?

with an ecu remap im sure you could have it gone no probs.

btw guys i reckon this would absolutely kill a stock gti haha.

gt chipped + intake + full exhaust + port and polish i reckon youd be pushing easily 200 wheel hp. it would just be slightly slower off the line due to the incredibly short gearing.

[SoVeReIgN]

I would be willing to bet it'd be about half a second off the pace (to 100km/h) compared to a standard GTI and about a second off the pace of a chipped one. Still bloody quick for a diesel though!

$50 says it'll be quicker than stock GTI! :)

[Greg Roles]

just perhaps, in time, we will know...;)

[jayjay]

mmm... so who wants to chop their gt tdi engine up?? :D

[shadowmaker]

with an ecu remap im sure you could have it gone no probs.

No, you can't. Trust me. There's only two documented DPF deletes made and both are made by my programmer. Of course you can take DPF out, but it will scream emissions on the dashboard. I bet there are some other too who can pull this out, but they are waiting to get their ideas channeled through big chip companies. Just like my programmer as at this stage he will do this only for people he can trust while he is discussing with bigger chip companies. These programs are easy to copy and with small alterations to the program you can claim it your own.

[Mischa]

mmm... so who wants to chop their gt tdi engine up?? :D

me me me... in 4 years ill spend stupid money on it and turn it into a monster :)

[mrx]

$50 says it'll be quicker than stock GTI! :)

You're on.

Have a look at the Oettinger website, the figures are comparable to the Superchips upgrades and they give 0-100 times.

[Mischa]

You're on.

Have a look at the Oettinger website, the figures are comparable to the Superchips upgrades and they give 0-100 times.

but we're talking about with my uber exhaust ;) ill go you 500$ if you're game haha

[Logzy]

http://www.vwwatercooled.com.au/forums/

what do you guys reckon? superchip + my exhaust design = gti muncher? :)

Nice one. My thoughts exactly once the DPF can be deleted from the ECU.

[SoVeReIgN]

You're on.

Have a look at the Oettinger website, the figures are comparable to the Superchips upgrades and they give 0-100 times.

Done! :)

Oettinger are very conservative with their 0~100figures! :)

[mrx]

but we're talking about with my uber exhaust ;) ill go you 500$ if you're game haha

I'm not talking about your drawing, didn't even look at it until now - I'm talking about James' Superchipped car.

In any case, put a less restrictive downpipe & high flow cat on a GTI and your back to square one again. If you wanted a performance car you should have bought the right car to begin with!

[mrx]

Done! :)

Oettinger are very conservative with their 0~100figures! :)

So their quoted figures for the GTI will be conservative too then! ;)

[Logzy]

I'm not talking about your drawing, didn't even look at it until now - I'm talking about James' Superchipped car.

In any case, put a less restrictive downpipe & high flow cat on a GTI and your back to square one again. If you wanted a performance car you should have bought the right car to begin with!

Were not talking about GTI's here were talking about Diesel GT TDI's

[mrx]

Were not talking about GTI's here were talking about Diesel GT TDI's

Actually we're claiming we are going to be a GTI muncher in our Diesel GT TDI's! j:j:j:

[Mischa]

I'm not talking about your drawing, didn't even look at it until now - I'm talking about James' Superchipped car.

In any case, put a less restrictive downpipe & high flow cat on a GTI and your back to square one again. If you wanted a performance car you should have bought the right car to begin with!

i drive my car effin hard and get 650kms per tank. drive a gti hard and you'll get 250. dw im not that stupid i definitely bought the right car. i have a second car to be stupidly fast, the gt is just my daily driver.

[Mischa]

Actually we're claiming we are going to be a GTI muncher in our Diesel GT TDI's! j:j:j:

which i will be :)

0-100 times mean jack ****, why did they pick a number around where most cars shift from 2nd to 3rd

[mrx]

Seems there is only one way to settle this, but Sydney & Perth are quite a way apart - meet you half way? :)

That's pretty crap fuel economy you're getting there - the worst I've done is about 450km - but then my foot isn't buried in the floor trying to keep up with GTI's. :D

[Mischa]

Seems there is only one way to settle this, but Sydney & Perth are quite a way apart - meet you half way? :)

That's pretty crap fuel economy you're getting there - the worst I've done is about 450km - but then my foot isn't buried in the floor trying to keep up with GTI's. :D

haha its all good pal. theres actually 2 ways to settle htis. eitehr you and i have a race, or i race a gti at a drag strip over here which will be done but dont hold your breath cuz i have other priorities before modding my daily!

[Greg Roles]

If you wanted a performance car you should have bought the right car to begin with!

Dude, pretty clever getting on a diesel thread and dissing diesels. Think about it. You've had intelligent things to say before this point.
I for one found your insight into rear swaybars invaluable, and welcome further input from you. Shame to drop the standard.

If the dieselers want to dream, you make youself seem worried by commenting so.

Misch, simple. don't feed the troll. He who angers you, conquers you.

Any of "us" oilers could have easily found the few extra thou for a GTI if we so chose.

But we didn't. Hmmmm:rolleyes:

[mrx]

Ahh, I knew there HAD to be at least one tosser on the forum....

Misch, simple. don't feed the troll.

People only get upset if they come from a place of lack.

Any of "us" oilers could have easily found the few extra thou for a GTI if we so chose.

But we didn't. Hmmmm:rolleyes:

Blow it out your exhaust pipe! I'm sure there's more tossers on here than just you and me. Chillax man, there's nothing wrong with a bit of friendly banter.

[jayjay]

Seems there is only one way to settle this, but Sydney & Perth are quite a way apart - meet you half way? :)

That's pretty crap fuel economy you're getting there - the worst I've done is about 450km

haha, mischa's throttle is welded open because he has some kind of disorder with not accelerating, not because he's munching GTIs!

[Greg Roles]

Blow it out your exhaust pipe! I'm sure there's more tossers on here than just you and me. Chillax man, there's nothing wrong with a bit of friendly banter.

Well...you were supposed to only see my revised, nicer version.

I guess it's just that I came from Ford, where it was 90% "my car is better than yours" and I have been so happy to see virtually none of that here. I'm a bit shell shocked I guess.:(

[Greg Roles]

To get back to the subject, James was kind enough to offer me a lap in his superchipped pride and joy. Thanks man, it's a big deal to let someone drive your baby. There's no way I'd let a shifty looking guy like you drive mine...

We ended up with three blokes in the car, so you need to factor in an extra 150kgs of man meat. Can only imagine the joy of solo flight!

MY GOD. This thing is just a TDI on roids. It felt like there was minimal lag straight away, and the torque rush just kept on going. I only gave it the odd, half arsed squirt, and it was damn impressive. I am absolutely sold on the upgrade, and Jamyz has himself one nice machine.

On the dyno the difference between cars wasn't as great as one would expect, but then James DID do his run with the air conditioner on. DOH!!! Allowing 4-6kw for that, and the difference in KW is about 15 at the wheels. Otteinger ( spelling?? ) claims 18kw over 125, so it sounds right.

This does however put ol J-man in the same park as a stock GTI that ran today with 128kw. :D

What was also suprising is on the dyno comparison the torque curve didn't "seem" that different, certainly not like the graphs otteinger depict on their website, but James may be able to pull the actual max from the graphs. To look at the superchip power curve, torque curve and especially the air / fuel ratio, J-man has lots fatter and broader curves, and a nice flat AF line. My factory Air Fuel line is all over the place.

http://www.vwwatercooled.com.au/forums/images/imported/2008/04/2008_0405Image0002-2.jpg

Bottom line is to drive the two cars is an ASTOUNDING difference, and I see the cost of a superchip as an EXCELLENT investment.

Seems the real world bumometer tells me the result is FAR more than the numbers would depict.:D:D:D

[Jaymz]

To get back to the subject, James was kind enough to offer me a lap in his superchipped pride and joy. Thanks man, it's a big deal to let someone drive your baby. There's no way I'd let a shifty looking guy like you drive mine...
Talk about shifty, i can't believe you brought your dad to the event. How was the videos he shot! j:


We ended up with three blokes in the car, so you need to factor in an extra 150kgs of man meat. Can only imagine the joy of solo flight!

MY GOD. This thing is just a TDI on roids. It felt like there was minimal lag straight away, and the torque rush just kept on going. I only gave it the odd, half arsed squirt, and it was damn impressive. I am absolutely sold on the upgrade, and Jamyz has himself one nice machine.

On the dyno the difference between cars wasn't as great as one would expect, but then James DID do his run with the air conditioner on. DOH!!! Allowing 4-6kw for that, and the difference in KW is about 15 at the wheels. Otteinger ( spelling?? ) claims 18kw over 125, so it sounds right.

This does however put ol J-man in the same park as a stock GTI that ran today with 128kw. :D

What was also suprising is on the dyno comparison the torque curve didn't "seem" that different, certainly not like the graphs otteinger depict on their website, but James may be able to pull the actual max from the graphs. To look at the superchip power curve, torque curve and especially the air / fuel ratio, J-man has lots fatter and broader curves, and a nice flat AF line. My factory Air Fuel line is all over the place.

Bottom line is to drive the two cars is an ASTOUNDING difference, and I see the cost of a superchip as an EXCELLENT investment.

Seems the real world bumometer tells me the result is FAR more than the numbers would depict.:D:D:D

No problem at all, my friend:) Yes its amazing how much different it feels on the road to what the graphs depict.

This graph shows the difference between Gregs car and mine, both power and torque curves are plotted. Although the output is not the top run my car did on the day & give or take a few kw's for someone leaving the a/c on:confused: the graphs should still have the same curves
http://www.vwwatercooled.com.au/forums/images/imported/2008/04/StockGTvsRemapGT-2.jpg

This one shows the top run my car did on the day with AFR's.
http://www.vwwatercooled.com.au/forums/images/imported/2008/04/SuperchippedGT-2.jpg

Greg has sumed up and confirmed by driving my car ,what its real character is. So folks if your one of those people who thinks its all about the numbers & you want a dyno queen then this retune is not for you but if you want something that is really responsive and has plenty of torque over a wide rev range then maybe you should consider this retune.

[Greg Roles]

Thanks for the post mate, interesting to print and work out the torque numbers.

What IS very interesting is if the stocko TDI pulls 113kw, and is rated at 125kw, it has about 10% transmission loss. Certainly an efficient tranny, but not outside the relms of possibility for a modern FWD. I suspect the diesel gearbox would be more, as it's supposedly a tough thing, so my folowing summary is probably on the "down" side.

The stock torque rating according to the dyno is about 356nm at the wheels.
At the same 10% loss from above, this puts the fly torque of the stock TDI at about 380nm. Very very healthy.

Given the aircon factor in your superchipped car Jamie, I'd guess you are around the 420 nm mark at the fly.

In all, it sure seems the ol oilers are pulling some impressive numbers where it counts!