thoughts about track rims and tyres

[shane@mbtech]

I prefer this et...



:clown:

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So thats what a young glendog looks like, :smokin:

[Nords]

never mind after them, I deffo want them, just been busy!!!! Gotta pick up my new daily $hitter from near you next weekend, so will probably get them then mate :thumbs:

Arhhhhhh, I'm doing the Phil Price rally thing on Sat and then Remembrance Sunday in uniform Sunday!....

[_Nathan_]

But pink yeah?

[glendog74]

I prefer this et...



:clown:

[shimmy]

Could always take a look at the speedlines that the Torquespeed car is running?

will do

This is what we developed with Rays, IMO ultimate spec for race/track wheels in terms of offsets and set up (whole process took 9 months of work).



Front 18/8.5/35 (run with optional 10mm spacer depending on track and conditions)

Rear 18/9.5/22

John, i think we all are looking for one rim for all 4 corners mainly for track work so we can use one tyre and swap them round

I looked at the rays in the offsets I wanted but too much money as I needed at least 6 of them. 9.5 is the best wheel size I think, a set of Rays 9.5 all round with spacers on the rear and 250/640/18 all round would be perfect

yep, only trouble with Rays is the off puting nature of the initial price (and also then getting all the Evo drivers trying to rob them on trackdays)

Running the pro race 1.2 18 x 9 all round, I felt the rear needs spacers.

,

def any rim/tyre combo on same froint and rear rims will need rear spacers to look sensible due to the difference in original offsets

[shane@mbtech]

I looked at the rays in the offsets I wanted but too much money as I needed at least 6 of them. 9.5 is the best wheel size I think, a set of Rays 9.5 all round with spacers on the rear and 250/640/18 all round would be perfect

Running the pro race 1.2 18 x 9 all round, I felt the rear needs spacers.

Ive not measured the track, but from eye it looks narrower than the front. Ill measure it to be sure, but im defo running spacers on the rear. with 265 35 18 all round.

One thing to consider when talking about offsets, widths etc, saying it wont touch the arch or the strut, the style of the rim has to be taken into consideration,

[_Nathan_]

I looked at the rays in the offsets I wanted but too much money as I needed at least 6 of them. 9.5 is the best wheel size I think, a set of Rays 9.5 all round with spacers on the rear and 250/640/18 all round would be perfect

[Thorney]

The problem is I can not find a wheel manufacturer that make such a size wheel lol

This is what we developed with Rays, IMO ultimate spec for race/track wheels in terms of offsets and set up (whole process took 9 months of work).



Front 18/8.5/35 (run with optional 10mm spacer depending on track and conditions)

Rear 18/9.5/22

Remember going to wider rim will add weight ( it does make a difference, I can tell how my car drives from Rays to pro Race 1.2's even with same tyres on)

Tyre deformation is in part due to wheel width for sure but camber is also a major difference, run max on Dunlops.

We even have a set in stock

[_Nathan_]

Could always take a look at the speedlines that the Torquespeed car is running?

[shimmy]

the standard front CSL tyre is 165.7mm from hub face to iside edge of tyre

the 18x10 et 30 TD Pro race with 265 Cups would be 163.9mm from hub face to inside edge of tyres

so these should not touch the strutts even with 10 inch rims




the standard CSL rears measure 160.9 mm so thye clear the strutts easily but foul the wheel arch more becasue more of the tyre is set out (hence the reason for an et30-32 being best)

[TANKSLAPPER]

i dont think 9.5 or 10.0 will make a difference as the tyre section will be much the same so the opiton could be 19 or18x10 et 32

Team Dynamics Pro-race 1.3 (liuke Nathans) make a 18x10 et 30 which is guess would be the one to go for

s

I agree that 9.5 or 10 j will not make much difference as both the standard CSL wheel ie 19 x 9,5 et27 and the bbs 19 x 10 et 20 touch the arch liner in the same place.

The only problem I can see with team Dynamics 18 x 10j et 30 is they may just touch the suspension strut.

You can see from the above photos that the BBS 10j et20 wheel is very close to the suspension strut ie about 10mm

I suppose 18 x 10j et 25 would work in my case with KW club sports on.

[shimmy]

So my cal's, would be to go for 18 or 19 x 9.5 et32 for the front and the same for the rear with a 15mm spacers

i dont think 9.5 or 10.0 will make a difference as the tyre section will be much the same so the opiton could be 19 or18x10 et 32

Team Dynamics Pro-race 1.3 (liuke Nathans) make a 18x10 et 30 which is guess would be the one to go for

Only troubles are;

1. Nathan uses them :gayfight:

2. Mazda Miatos use them as well:gayfight:

ALSO i just rang Rimstock and the Pro Race 1.3s with 18 inch 265 Cups weigh over 1 KG more than rear CSL rims with Cups:banghead:

[TANKSLAPPER]

Here's some photos of BBS CH'S rears 19 x 10 et 20 on the front they rub on the outside edge of the wheel arch, but they do clear the suspension strut.

If you take out the wheel arch liner then they may clear.

I not going first through the foxhole lol

[TANKSLAPPER]

I have done a little testing on the front wheel clearance

This was with 3 degrees camber

The standard CSL wheel as we know is 19 x 8.5 et 45 fits
BBS CH'S is 19 x 8.5 et 35 fits
BBS CH'S 19 x 8.5 et 35 with a 12mm spacers fits = to 19 x 8.5 et 23

The standard CSL rear wheel on the front 19 x 9.5 et 27 just touches the outer side edge of the arch.

The BBS CH'S rears 19 x 10 et 20 rubs a lot.

So my cal's, would be to go for 18 or 19 x 9.5 et32 for the front and the same for the rear with a 15mm spacers

The problem is I can not find a wheel manufacturer that make such a size wheel lol

[_Nathan_]

Well you know that an 18x9 ET27 (m3 rear) fits just fine and that sticks out 24mm more that an 8.5 et45 so I think it'd be fine, also remember that loads of people run 10-12mm spacers on the front, again with no issues.