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295's In 18" Is The Goal


nelsonian101

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So got pissed one night and bought a set of 4 x 295 30 18" Yoko A050 on ebay in soft compound.

The softs are great for Hillclimbs and winter track days as long as you're careful not to get them too hot doing too many supersprint laps.

Need to fit them, starting with rears first.

Circuit rims are 18 X 9.5" +22 offset all round.

See thread here:

http://www.fordxr6turbo.com/forum/topic/85736-pics-of-275s-all-round-for-circuit/

My street rim rears are 18 X 9.5 +35 offset. 285 18" (30 or 35) tyres fit fine.

To fit 295 30 18" tyres, I will need an 18 X 10.5" rim. +22 offset that will sit 13mm further out than my current street rims. Due to 1" width increase, the rims will sit 12.7mm further in. This in theory will make sure it doesn't hit inner suspension links. OK for the inside?

My rear guards have already been rolled. 275 35 18 tyres fit comfortably at +22 offset. 285 very close.

295 won't I'm guessing unless the guards are pulled out even further.

Will the lower 295 30 18 profile help?

post-16087-0-99919700-1439108107_thumb.j

Any recommendation for pulling the guards out a bit more or are flares the only option?

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Looking at the new Work T7R. Come in +12 offset too.

Eventually will look at fitting 18 X 10.5" on the front as well.

Rolled and cambered of course, just for track days only.

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Test fitted some 295 30 18 on a 9.5" rim.

Very close.
Can't tell.

Tyre will bulge more than the 10.5" rim they will eventually be on so who knows?

With more camber, may even fit!!

30 profile helps too.

Won't be driving on the street like this.

Don't want them to scrape on the inside guard at the circuit either.

Will they fit without resorting to flares?

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post-16087-0-30682200-1439877733_thumb.j

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Honestly, as tough as that will look -- you're better off selling them and buying tyres that aren't as wide.

As once hot, they will have bulk grip so width isn't as much an issue, comes down to drivers throttle control and ability to keep the cars weight distribution constant/unchanged during cornering and braking

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I care "ZERO" for how tough it will look mate.

"Better off selling them and buying some not as wide?"

I have been tracking this car at the limit for 5 years. From 275 Z214, 270 Michelin slicks, experimenting with aero.

I'm at the pointy end of Street/Circuit Falcon development in this country.

Proved with my lap times on Natsoft. Read some of my posts dude..........

These cars need mechanical grip.

It hasn't been done, and I'm trying my best to do it!

"Once hot they will have bulk grip so width isn't an issue..."????

WTF?

These cars are undertyred, massively.

This has been confirmed by experts like Bill at Gordon Leven who has seen what happens to my track tyres.

I will work on my throttle control.:)

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All good, wasn't a hack just from what I've picked up over my years when I had my FG,

Try Michelin 24-64-R18 S8C compound -- these were insane, best tyre I've used, 110% confidence, couldn't put a foot wrong with those ... Went to 27 width, and actually lost time.

* just remembered rears were stretched onto a 9.5" too, so not optimal sidewall support

Different tracks of course require different Tyres, wanneroo being abrasive and dusty (at times) worked well with these.

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No worries mate. :)

I have also used 240 250 and 270 Michelin slicks.

Best I have used were very fresh 27 65 18 S7H Michelins.

They were sticky but you are right, ideally needed a wider rim for maximum effectiveness.

I matched my slick times using 3 sets of brand new Z214's from tyre rack.

I am now competing in stricter time attack events.

Next year in the NSW Time Attack at Wakefield. Regs allow a 295 tyre all round for 2wd cars.

My car has the torque to push 295's so resistance is not an issue, as well the weight to get them hot. :)

The A050's will be used in the Hillclimb events I'm doing. Softs come up to temp very fast.

Agree, a 285 would have been ideal but Z221 and A050 only go from 265 to 295 in width.

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Decent r&d done there ... Shame about the lack of width options but hey, gotta use what you can.

Hoping that you can get these to fit, may not be easy, but if you pull it off, it should grip like a *beep*.

On temps. I couldn't get heat into S7A 27's ... Less grip than shockwave paint on BF panels

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