robinsonracing

Anybody running 295 rears on a late model using some factory porsche rim or is everything custom (bbs,ccw etc) if so what is the offset and are you running 245 fronts and same info. 17 or 18 rims?
Brian

blodstrupmoen

This was disscused in another thread .. search for "tire width"

As I understand you ned ET60-65 on a 11" rim for a late offset car.

xsboost90

i have 295/30/18's but my car is early w/ 45mm offset wheels and 15mm spacers. You will need 60-65mm offset to do it and watch that crazy rear camber.

anders44

ET45 wheels with 15mm spacing makes an ET30

I'm waiting for my 295 cup tires and remaining wheels...

JonH

You guys running a 40-50mm dif. front to back see understeer? I'm guessing you're looking for traction first, but I'm courious if you see a noticeable understeer.

Sorry, not trying to 'jack the thread, but I'm interested in the width question myself.

AlexE

Anyone care to do the calculations for an early offset 86

What do I need to stuff 18x11 rear ...........and 18x9? 18x10? in the front?

I am running coilovers.

Thanks.

robinsonracing

Understeer yes, loss of traction more with 225fr/245rear and 300rwhp soon to be 390ish so I'm looking for more meat in the rears to go with more meat in the front like 245 F/ 285-295 R. So I'm looking at rim options. Primarily a track car!
Brian

thingo

I run et 60 18x10 295/30 on the rear, et 50 18x8.5 245/35 front, no problem on the rear, one side of the front has had minor issues.With stock springs.

xsboost90

im running coilovers all around on my 86- running 52mm offset front IIRC w/ 25 mm spacers- 45mm 18x11 rear w/ 15mm spacer.

anders44

most of the new porches run 235 fronts and 295 or more in rear, understeer can be fixed with suspension/angles

AlexE

Uhmmmm and what offset would you need with no spacers?

Duke

But they have a tad different weight distribution

robinsonracing

Thanks, I have aftermarket coilovers so I'm all set. Is your ride height stock or lowered a little??
Brian

thingo

Mine is a bit lowered I would say, but I don't think that is to critical really.

HansB

Right.

To avoid understeer we run 951 racers with equal tiresizes F/R 285 - 305 depending on make and model.