Sam's build thread

[sambb]

Crossing over set up tips from a 70's RWD car with live axle leaf springs to a 00's FWD car with independent suspension all round is a garden path that I wouldn't suggest following.

Cheers
Gary

yep your right, wasn't attempting that! just that I've noticed a few people say that all things being equal, that they find cold tyre grip is better with a taller sidewall. Could it be something related to the fact that in the hillclimbs people tend to run their tyres at or below the hot tyre recommended pressures for their runs and that taller sidewall tyres maybe tolerate that better than lower profile ones?

[Sydneykid]

yep your right, wasn't attempting that! just that I've noticed a few people say that all things being equal, that they find cold tyre grip is better with a taller sidewall. Could it be something related to the fact that in the hillclimbs people tend to run their tyres at or below the hot tyre recommended pressures for their runs and that taller sidewall tyres maybe tolerate that better than lower profile ones?

If the car is set up correctly then the lower profile tyre should always be better, with emphasis on if the car is set up correctly for that track on that day. It's just that in general a taller profile is more tolerant to a "not quite right" set up (and/or not quite right tyre pressures).


Cheers
Gary

[sambb]

gotcha. thanks

[metalhead]

Thanks Gary, good info.

That video of Ari is awesome! Nutter...

Sam, yeh, I'd say you're right about the results of narrower fronts. Yes, I have a limited slip. It's the factory clutch lsd, but with solid steel clutches, and with the preload springs removed such that it only locks up under power - but it locks up very effectively when the right foot is down. Makes it very progressive and predictable/controllable, though arguably slightly less effective and with no residual limited slip effect when off the power.

[sambb]

So its more like a one way now. That'd help with turn in too wouldn't it, not being pushed from behind as you brake into the corner.

Yep Ari is the man. Having had a mk2 Escort and a Peugeot 205Gti its impossible not to be a fan boy of him. You see interviews of him now where he comes across as so cultured, relaxed and very thankful that he survived the Group B era, but jeez put a helmet on him and the nutter emerges. He talks about how he felt that he was no different to a dancer or a composer, that he was an artist and dusty roads were his canvas. Legend

[metalhead]

So its more like a one way now. That'd help with turn in too wouldn't it, not being pushed from behind as you brake into the corner.

That was my aim. It's more refined too. Previously it would bump and clunk in low speed turns/parking etc, now you'd never know it's there until you get on the loud pedal... Street car remember!

Yep Ari is the man. Having had a mk2 Escort and a Peugeot 205Gti its impossible not to be a fan boy of him. You see interviews of him now where he comes across as so cultured, relaxed and very thankful that he survived the Group B era, but jeez put a helmet on him and the nutter emerges. He talks about how he felt that he was no different to a dancer or a composer, that he was an artist and dusty roads were his canvas. Legend

He is a legend, that's for sure.

[Sydneykid]

Hi Sam, will 225/45/16's fit on your car? I have 2 or 3 x A050's in Medium that would be OK for a hillclimb or 2.

Cheers
Gary

[sambb]

hmm I know it'd be a good size to run and pretty common but I don't have 16's other than the really heavy stock rims. They will physically fit I think as I'm pretty sure Eddy ran that size.
I called Levens today to see if they had any 215/50/15 second hand mediums and he said try on Monday as he might have some in then. I'm also after a pair of 205/50/15 softs for the front but they are like hens teeth at the moment.

[Eddy]

Hoyhoy.

Yeah I use 225/45/16's, but they are on 8"rims. Controlled size for some class so common in semi-slicks, but not so for streety's the last time I looked. I've lost a few on the track until I went with this combination.

[sambb]

Hey Eddy - haven't seen you on here for a while. Yeah my 15's are only 7's as I run 195's and 205's. At 8 inch can you remember what offset the rims are? Did you have to run spacers??

[sambb]

Gary i'll have a quick look around at what rims are available in 16's. All comes down to cost so i'll see, but cheapest would still have to be sticking to 15's and just swapping tyres on and off depending what type of event I'm doing.

[Eddy]

Hey Eddy - haven't seen you on here for a while. Yeah my 15's are only 7's as I run 195's and 205's. At 8 inch can you remember what offset the rims are? Did you have to run spacers??

Hoyhoy.

Yeah I look every day, but don't say too much.
I tried to find some info on them from my Ozvolks threads, but couldn't find. The wheels are sitting on a rack above the Pog which doesn't move too often. So it'll take a bit to find out the off-set Sam. I didn't use spacers with them. They're Compomotive Wheels which are rather heavy & expensive, but strong & never had a problem since going with these.

[sambb]

No worries re the offset Eddy. Was only if you knew it by heart. Had you rolled the guard lips to get them to fit or they went straight in without problem.

[sambb]

what the ? The TCR is getting a round in Oz!
Australia to get its own global touring car series

[Eddy]

No worries re the offset Eddy. Was only if you knew it by heart. Had you rolled the guard lips to get them to fit or they went straight in without problem.

Hoyhoy.

No rolling Sam.