Group 5 Sprints @ Sandown July 13th

[Peter Jones]

I've seen this event in a few calendars but I'm having a lot of trouble finding supp regs and entry forms.

Apparently VWCV is a member of group 5 again and Sandown is nice and close to home. (Tow truck range!) VWCV are encouraging us to represent after all:biggrin:

Anybody got the lowdown on this event?

No info on CAMS or AASA sites.

It's in the PIARC calendar which says the organisers are Ford 4 and Honda sports clubs but neither of those have any details. It's in the latest VWCV newsletter too.

Pete

[Jarred]

I havn't heard about it, but if you go down for a run Pete, I'd love to be there. I'm on hols at that stage, so I should be free (hopefully)

[Peter Jones]

I had a chat to the VWCV motor sport co-coordinator Chris today and confirmed this event is on. There's no paperwork yet but it should appear on the Ford Four site when it's ready. I'll cross post the details when I get them.

If you ever wanted to tackle a club level sprint this should be a good event.

Who's coming along?

Pete

[Water Boy]

Hmmmmmmm sounds good :)

[Blue Flog]

The event is been run by FFCC and HSCCV. FFCC contact is Nicholas Charrett ncharrett@casey.vic.gov.au and HSCCV is Bruce Lethborg fixwell@iprimus.com.au.
Regards,
Darcy

[Peter Jones]

Thanks Darcy,
e-mail sent.
PJ

[Tim]

Are they going to be charging crazy entry fees? Or will it be free to come along and spectate? Not that im fussed about the money. Just makes it a less attractive proposition

[Peter Jones]

Are they going to be charging crazy entry fees? Or will it be free to come along and spectate? Not that im fussed about the money. Just makes it a less attractive proposition

Don't know yet, I'll pop up the details as soon as I hear back from the organisers.

Pete

[Peter Jones]

Got a reply from Bruce,


Supp regs are at CAMS awaiting approval, as soon as they are ready we will have them on our website www.holdenclub.com (http://www.holdenclub.com/)

C'mon who's going to join in the fun?

Pete

[Preen59]

Got a reply from Bruce,



C'mon who's going to join in the fun?

Pete

If my car was finished, and i lived in victoria, i'd go for sure! I intend to one day though!

[Preen59]

Are they going to be charging crazy entry fees? Or will it be free to come along and spectate? Not that im fussed about the money. Just makes it a less attractive proposition

Motorsport= Big bucks. No matter what type it is. You just have to get used to it unfortunately. The only thing that varies is how big the bucks are.

[Peter Jones]

Motorsport= Big bucks. No matter what type it is. You just have to get used to it unfortunately. The only thing that varies is how big the bucks are.

Speed costs! :driver:

Pete

[Preen59]

Speed costs! :driver:

Pete

It's worth it though. Well what you and i are doing is anyway. I think the "Bang for Buck" ratio is pretty good. And we can still enjoy our cars on the road. :D

[Jarred]

i'm hoping to spectate

[Peter Jones]

For me a big cost is time as well as the dollars.

I've got to plan well within my time budget and not tackle too many things at once so I can be certain the car will actually be ready for the next event.

It takes a fair bit of planning and preparation to make sure everything goes smoothly.

It's good to go now, I just need to pop the new injectors in there and sort the tune. Once I'm happy with that I'll try the Volvo fuel distributor out. Because I run the volvo airbox anyway, it's a quick swap.

It needs a run, but I don't have a working temp gague yet! I'll pick the new VDO gauges up tomorrow and get them and the factory gauge working over the weekend.

It's fun to drive these cars on the road, they may not be the fastest in a stop light drag race, but when you get asked how fast does it go and you can quote your actual laptimes of Phillip Island and not some theoretical manufacturers spec or BS dyno HP reading, that's a special moment right there.:driver:

Pete

[Peter Jones]

i'm hoping to spectate

Stuff that , you're pit crew!

Pete

[Preen59]

Stuff that , you're pit crew!

Pete

Take that Jarred! Get in and give Pete a hand! :biggrin:

[Jarred]

yes, upgrade :D

[Peter Jones]

Supp Regs are up!

I'll post off my entry tomorrow!

http://www.holdenclub.com/

Regs & entry form (http://www.holdenclub.com/2008/fvhr2/FFCC_Sandown_13-07-08_cams.doc)

Now all I've got to figure out which class I fall into.

http://www.ffcc.asn.au/technical_information_files/2007%20Group%205%20Regulations.pdf

By the looks of this I should enter as modified due to the MK2 1800, unless anyone can prove that a GX K-Jet was ever fitted to a '79 Mk1. The rest of the car looks to be right for either Standard or modified classes.


Pete

[Water Boy]

Mate enter stock... They dont give a toss, modified is caged, buckets coil overs etc :driver:

[Peter Jones]

Cheers James, You running?

Pete

[Preen59]

Good luck, Pete.

[Peter Jones]

Good luck, Pete.

Thanks!

I'll be happy If I can drive the car home:driver:


Pete

[Preen59]

Thanks!

I'll be happy If I can drive the car home:driver:


Pete

You'll be fine. You haven't skimped on anything and it looks like you gave it a good once (or thrice) over.

Don't forget about pics.. :D

[Peter Jones]

Bump.

1 week to go.

I've sent off my entry and the car's ready to go.

Anybody else running?

Who's coming down for a look?

Pete

[thestu]

i may come down for a ponder i ask jarred and josh if they wanna come.

good luck! :D

[GoLfMan]

yeh i recon ill come down for a look if im not riding :)

[Jarred]

I'm already making plans.

what are the important details i need to know?? :D

[Peter Jones]

I'm already making plans.

what are the important details i need to know?? :D

Wear warm clothes and don't walk on the race track.


Pete

[Jarred]

Wear warm clothes and don't walk on the race track.


Pete

hahah smart

what time do i need to be there?

(and where is sandown, whats the "address"??)

[Peter Jones]

Here's the location of the track.

http://www.sandown.net.au/

From the regs


6.1. Scrutineering will commence at 8.00 am and finish at 9.30am. A compulsory driver’s briefing that must be attended by all drivers will then take place after which competition will commence. Competition shall consist of a number of multi start sprints, each of one warm up and three individually timed laps.


Which means I'll be there around 7:30 or earlier.

Pete

[Peter Jones]

There's even a handy map on there http://www.sandown.net.au/pdf/1893_Sandown_A.pdf

Entry is usually via Racecourse Rd, off Princes Highway.

Pete

[Preen59]

There's even a handy map on there http://www.sandown.net.au/pdf/1893_Sandown_A.pdf

Entry is usually via Racecourse Rd, off Princes Highway.

Pete

Heh, when i went down for the V8s, we had a hard time finding the entrance to the pits to get in. Benny got rather annoyed and layed some serious rubber in the blown GTO while we were trying to find the entrance.


Good luck, Pete. Are you pumped?

Jarred- You're also photographer, so get some good snaps buddy!! :biggrin::biggrin:

[Jarred]

Good fun. So i'll be there at 12...

hahah.

i Geuss I'll aim to be there by 9, so I have a chance to catch up with Pete before he hits the track. (or do I need to be earlier Pete?)

Looking at the map, which part is actually the race track?? I can't visualise it in my head atm...:?

I'll have my camera ready. Unfortunately my good camera, is dead-ish, and in at the place getting checked or fixed or something. So i'll have my old camera. (well the family camera at least :))

[Peter Jones]

Good fun. So i'll be there at 12...

hahah.

i Geuss I'll aim to be there by 9, so I have a chance to catch up with Pete before he hits the track. (or do I need to be earlier Pete?)

Looking at the map, which part is actually the race track?? I can't visualise it in my head atm...:?

I'll have my camera ready. Unfortunately my good camera, is dead-ish, and in at the place getting checked or fixed or something. So i'll have my old camera. (well the family camera at least :))

http://www.sandown.net.au/pdf/Raceway-web.pdf

This is the map of the motorsport track, you were looking at the horse tracks.:)

Pete

[Jarred]

Kewl thanks Pete. I though something was a bit horsey..:?

I figure LEGER carpark behind the pits would be a good place to park?

[Peter Jones]

From my recollection you'll be parking a bit further down the road, That Leger carpark will mostly be occupied by the event vehicles, it's where I'll probably end up pitting.

Pete

[Peter Jones]

All packed up and ready to roll, hope to see some of you down there tomorrow.

Pete

[GoLfMan]

WOOOOH im looking forward to seeing this :D
catcha tommorow mate!

[Jarred]

looking forward to it too.
just have to remeber the camera ;)

[Peter Jones]

Our cameras are packed. I bought a new tripod for the video camera too. Hopefully we'll get some good footage.

I'm not allowed to mount our HD camera in the car yet, it's a liitle too new and expensive. :frown: Might put the low res micro camera on the grill though if I remember.:)


Pete

[Preen59]

looking forward to it too.
just have to remeber the camera ;)

Damn right you do. I want pics!! :)

For the 18th time, good luck! :driver::driver:

[Jarred]

This was a hoot!

I think it's fair to say Pete had a great day, and everything went as planned. (i think :))

I'll let Pete post up some pics and give everyone a detailed report :)

[GoLfMan]

awesome day and some awesome cars hanging around at the track.

Good work Pete, you got me inspired to get mine on the track now :D

[Peter Jones]

Thanks for coming out for a look guys. I got another run in after you left, it felt faster then before.

Car and driver made it home in one piece, I think the car is OK but the driver is definatley feeling the wear and tear.

Pics to come yet, once I've recovered for a bit.

Pete

[Preen59]

Thanks for coming out for a look guys. I got another run in after you left, it felt faster then before.

Car and driver made it home in one piece, I think the car is OK but the driver is definatley feeling the wear and tear.

Pics to come yet, once I've recovered for a bit.

Pete

Had a good day but pushed yourself a little hard huh? Good stuff.

Can't wait for the pics!

[Peter Jones]

Here's a quick one,

The action shots I'll have to extract from the video a bit later on.
http://www.vwwatercooled.com.au/forums/images/imported/2008/07/SANY0929-1.jpg

Pete

[Peter Jones]

A few of the cars.

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300480-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300489-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300494-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300498-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300499-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300502-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300516-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300517-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300525-1.jpg

[Peter Jones]

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300529-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300530-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300541-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300553-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300556-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300559-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300560-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300561-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300562-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300565-1.jpg

[Peter Jones]

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300567-1.jpg


http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300568-1.jpg


http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300569-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300581-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300582-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300583-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300604-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300605-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/SANY0931-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/SANY0926-1.jpg

[Oneofthegreats]

Glad to hear everything went well Pete. How did the car perform overall?

Very nice selection of car's there too. I wouldn't mind going & watching these sort of racing, but it's a bit of travel time for me.

They also had a open day at Winton on the weekend too!

[Preen59]

Nice pics, Pete. Any action shots? :D

[Water Boy]

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300489-1.jpg

Golf parking only... :bowdown:

[Water Boy]

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/P1300560-1.jpg

Did you see this car out in action? He does 1:55 at the Island... That nearly quicker than our Golf :duh:

[Peter Jones]

Working on the action shots, I've got to pull them out of the video. Jodie could only work one camera at a time!

Here's a few for starters, Once I figure out this editing software I'll pop a few clips on You-Tube.

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/SANY0966-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/SANY0968-1.jpg

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/SANY0969-1.jpg

Pete

[Preen59]

Tip: You were taking the wrong line onto the straight. It's faster to head straight for the apex of the kink once your car is settled out of the last corner.

Well apparently anyway. Thats what Oscar Fiorinotto told Ben to do in no uncertain terms in the supercar.

Great shots so far, Pete. How was the car?

[Peter Jones]

The car behaved itself, although I still can't find that missing torque. I've got the point where I'm thinking this is good as it gets for this motor.

The motor runs perfectly well it just isnt very powerful.

The lack of top end speed made me about the slowest thing on the track, but I got to have a good look at the scenery whilst ambling down the straights.:biggrin:

Best speed I got out of the thing was a tad over 95 MPH. Lap times were fairly consistent around the 1:55 - 2:00 minute mark. (The majority of the field was doing around 1:40 or so)

Water temp was well under control with the new radiator and hoses.

Oil temp approached 100 degrees, that oil cooler was working overtime.

Oil pressure seems to be down a bit low to me even with the Fuchs oil. I might pop in a new pump just to be safe.

I felt I was getting faster through the day, my lines were certainly improving, not too many anxious moments this time.

Brakes and tyres did their thing well, no signs of fade. I did lock the front left a few times headed into turn 1 a bit hot.

Need to practice my trail braking to turn the car, I got it right a few times but I need more track time to figure it out.

All in all a great day. I'm pretty stiff from the exertion and the bitingly cold winds today but it was all well worth it. WHen's the next event?:biggrin:

Pete

[Peter Jones]

Tip: You were taking the wrong line onto the straight. It's faster to head straight for the apex of the kink once your car is settled out of the last corner.

Well apparently anyway. Thats what Oscar Fiorinotto told Ben to do in no uncertain terms in the supercar.

Great shots so far, Pete. How was the car?

Most people were even wider than that on that last corner, there's not a lot of real estate to play with .

I was aiming for the line that let me carry the most revs, my best speeds down the straight were when I could exit this corner at redline.

I probably could have taken a better approach to that bend, I'm still figuring things out.:)

Pete

[Peter Jones]

Of course, let's not discount the possibility that I'm carp at this! :biggrin:


Pete

[Peter Jones]

Did you see this car out in action? He does 1:55 at the Island... That nearly quicker than our Golf :duh:

Don't think I saw it, there might be something on the videos though.

!:55 around the island?

My Phillip Island laptime allows time for a picnic lunch!:)

Pete

[GoLfMan]

there were some serious machinery there!!!

the twin cammers sounded like berg cup cars and that white RX spat flames when he backed off on the straight..... ohh the joy :D:D

[Jarred]

Yep, that bronze corolla was quick. sounded like a twin cam, with some serious work, one of the quicker cars there.

There was also a 540HP supra running 14psi of boost, ripping some quick times. It really flew on the straights.

There were a couple of quick torries, and the twin cam escorts were also spritly. Highlight of the day was the mini's though. had wel over half a dozen there, and they looked great, sounded great, and went like the clappers!

Great way to spend a day, although unfortunately we couldn't see too many twisty bits (cause we were on the straight) and it was freezing cold! that was the worst part.

[static1800]

That old Ford Anglia is a serious bit of kit!

Good to see you had a good day, sounds like you need 8 more valves Pete :)

[Preen59]

That old Ford Anglia is a serious bit of kit!

Good to see you had a good day, sounds like you need 8 more valves Pete :)

Hells yes! BRAAP!

[Jarred]

Speaking of "BRAAP!" dude, there was some seriously angry rotaries there. Well actually only 2 from memory, but they was mean! I love em, no matter what you say preeny :D

[Preen59]

Of course, let's not discount the possibility that I'm carp at this! :biggrin:


Pete

I wouldn't worry about that.

I'm a big fan of the fact that you are building a good starter car and aren't going out trying to set the world on fire and impress people.

At the end of the day, being able to admit your flaws means you can work on them and improve.

You're doing this for you and you'll get better with practice. So good stuff. :)

[Preen59]

Speaking of "BRAAP!" dude, there was some seriously angry rotaries there. Well actually only 2 from memory, but they was mean! I love em, no matter what you say preeny :D

Overgrown alternators..

Hand grenades.. :brutal:

Make good power though..

[ausgolfer]

Yep, that bronze corolla was quick. sounded like a twin cam, with some serious work, one of the quicker cars there.


Are you sure that things quicker than ur golf james? :duh:

[ausgolfer]

Judging by the picture it does look like he's taking the wrong line but if the picture showed what was before and after you'd see thats a decent line to be taking there.

Glad to see you had a great time Pete, was going to come along but was a little too....indisposed

[Water Boy]

Are you sure that things quicker than ur golf james? :duh:

Yes its quicker than mine but not Dad's... My Mk3 is so slow its not funny but dont worry the 16v in Dad's make up for it :biggrin:

[Jarred]

Hhhahhah

I'm sure Pete took a few wrong lines during the day! Not to worry, he wasn't the only one!

Probably only about a dozen odd cars were actually taking the correct lines, all the time, the rest, were on and off. but who care's. not racing for sheep stations after all...

[ausgolfer]

Yes its quicker than mine but not Dad's... My Mk3 is so slow its not funny but dont worry the 16v in Dad's make up for it :biggrin:

Yeah I know u meant ur dads, but I still think that corolla IIRC has a worked 2l twin cam on boddies or carbs and remember it being pretty bloody quick at the island.

[Jarred]

Well it was pretty quick at sandown. Didn't get a look under the bonnet, but it had lots of camber and heaps of stickers on it, so it must have been quick!

[Preen59]

Well it was pretty quick at sandown. Didn't get a look under the bonnet, but it had lots of camber and heaps of stickers on it, so it must have been quick!

Camber and stickers make they car, bro! You can never have too much neg! :duh:

[Water Boy]

You can never have too much neg! :duh:

Ill have to pick u up on that one :eek: Too much camber and when you brake thefront wheels camber up even more so thats why you need a compremise between the 2 thats goes round corners hard and still haas enough rubber on the road for good braking... So 2.5 dgrees is about right :driver:

[Jarred]

There were cars there that had way more than 2.5 degs, heaps of cars! Some would have had. lots. like LOTS!

[Preen59]

Ill have to pick u up on that one :eek: Too much camber and when you brake thefront wheels camber up even more so thats why you need a compremise between the 2 thats goes round corners hard and still haas enough rubber on the road for good braking... So 2.5 dgrees is about right :driver:

Oh, dude, it was A JOKE! :duh:

Next time i'll PM you with a pre warning. :)

Oh, and by the way, the camber increases only if you have a single arm front end. Dual wishbone moves linear.

[Water Boy]

Oh, dude, it was A JOKE! :duh:

Next time i'll PM you with a pre warning. :)

Oh, and by the way, the camber increases only if you have a single arm front end. Dual wishbone moves linear.

Ahhh good... But i do say if yiu dont plan on going fast get as much camber as possible :biggrin:

[Preen59]

Ahhh good... But i do say if yiu dont plan on going fast get as much camber as possible :biggrin:

Haha, that's ok dude. Yeah Neg looks mean with big wheels. Hell on tyres when you're street driving though..

[ausgolfer]

Oh, and by the way, the camber increases only if you have a single arm front end. Dual wishbone moves linear.

This is only true for equal length parallel wishbones, which bascially no one wants or needs.

You actually want neg camber gain(on the working wheel) as your chassis rolls around a corner.

Imagine your chassis is rolling 5 degrees in cornering(not too out of reach for a golf lol) and ur set up with neg 2.5, if your wheel only moves up and down in the same arc your result will be positive 2.5 degrees on the outside wheel. Which equals not nice handling.

You can get all sorts of results from changing the wishbone lengths angles and king pin inclination of a vehicle, obviously it's not cheap or easy to do so. And as we know everything is a compromise.

[Jarred]

^^^

smart ass..


"look at me, I'm a qualitfied engineer..."

Yea, but it won't help ou next week on the kart track! :D:D

[Preen59]

This is only true for equal length parallel wishbones, which bascially no one wants or needs.

You actually want neg camber gain(on the working wheel) as your chassis rolls around a corner.

Imagine your chassis is rolling 5 degrees in cornering(not too out of reach for a golf lol) and ur set up with neg 2.5, if your wheel only moves up and down in the same arc your result will be positive 2.5 degrees on the outside wheel. Which equals not nice handling.

You can get all sorts of results from changing the wishbone lengths angles and king pin inclination of a vehicle, obviously it's not cheap or easy to do so. And as we know everything is a compromise.

Got me there. :)

[MattSLK]

I took a shot

[Jarred]

I took a shot

Were you there in the SLK? I do remeber seeing an SLK in the parking..

[MattSLK]

Were you there in the SLK? I do remeber seeing an SLK in the parking..

Yes, late in the day took a few shots from the last couple of groups. There were some quick cars and a mixed bag as well.

[Peter Jones]

I took a shot

http://www.vwwatercooled.com.au/forums/images/imported/2008/07/golf-1.jpg
Cool that actually makes me look fast! Got any more?

Pete

[Peter Jones]

Video of final outing.

http://www.youtube.com/watch?v=sP5IAnaMMy4

Pete

[Preen59]

Video of final outing.

http://www.youtube.com/watch?v=sP5IAnaMMy4

Pete

Just so you know, you can hear your wife say "sh*t" about 5:10mins in.. :biggrin:

Good clean, smooth lines from what i could see. Very nice. :)

Good to see you're starting at 90% :) and working your way up instead of 125% and working your way back.. :duh:

[Peter Jones]

Just so you know, you can hear your wife say "sh*t" about 5:10mins in.. :biggrin:



She also drops the F word when she tripped over the tripod a second time:biggrin:


Good clean, smooth lines from what i could see. Very nice. :)

I'm trying hard to concentrate on technique for the moment.:)

Did you spot the puff of smoke from the car on the last entry to turn 1?

I found the LHS tyres were running colder than the RHS ones due to all the LH turns.

Next time out at Sandown I might run 1-2 PSI lower on the inside and see if I can get the temps to even out. I was running 24 PSI cold (8degrees) all round (Before anyone tells me I should be running 40+ PSI - These are semi slicks - street tyre logic does not apply ) and aiming for around 30 PSI hot.

Pete

[Preen59]

She also drops the F word when she tripped over the tripod a second time:biggrin:



I'm trying hard to concentrate on technique for the moment.:)

Did you spot the puff of smoke from the car on the last entry to turn 1?

I found the LHS tyres were running colder than the RHS ones due to all the LH turns.

Next time out at Sandown I might run 1-2 PSI lower on the inside and see if I can get the temps to even out. I was running 24 PSI cold (8degrees) all round (Before anyone tells me I should be running 40+ PSI - These are semi slicks - street tyre logic does not apply ) and aiming for around 30 PSI hot.

Pete

No i missed the puff. I take it you want to lower the pressure so that the tyre carcass moves around a bit more and creates some more heat? You could also try running a higher pressure to decrease the contact area a little. If you decrease it, that smaller area gets hotter faster, and it also has less surface area to dissipate the heat back into the track.

[Peter Jones]

No i missed the puff. I take it you want to lower the pressure so that the tyre carcass moves around a bit more and creates some more heat? You could also try running a higher pressure to decrease the contact area a little. If you decrease it, that smaller area gets hotter faster, and it also has less surface area to dissipate the heat back into the track.

Manufacturer says less pressure = more heat

For an 800kg - 1000kg Car these are the cold temps for compressed air

For 4 laps or more 21-24 psi
For very short runs 25-28 psi

target Hot inflation is 30 - 36 psi

They do however also say that increasing the pressure does in fact reduce the contact patch as you point out, they suggest to do this when running on a wet track and increase the the pressure by 4-8 psi.

All this changes as the tyres wear too.

I'm still trying to get my head around it all, there's a lot to learn yet.

At Phillip Island I was checking temps and pressures after every run and the tyres were behaving as they should. My driving style was observed as too aggressive and hard on the tyres so I was watching tyre wear patterns more closely this time.

Regardless of all of the above, these are the best tyres I have ever driven on. Their levels of grip are amazing and the breakaway is very progressive (if you can push them that far).

My occaisional little lock up is probably better managed by experience than tyre pressure in this case.:) I'm pretty impressed that the brakes could still manage to actually lock up a hot slick on the 5th lap! Who need big discs?!


Pete

[Preen59]

Yeah you run more pressure in the wet for the reason i said, plus it cuts through the water better and also opens up the tread.

Just a suggestion as different tyres have different characteristics. Its a lot to get your head around and unfortunately there's no rules, only theories that work for you. Different tracks even if they seem similar, can change the way your vehicle behaves to no end too.

That's why there's big bucks in motorsport...