Offset For Gtr32 Rims And Mismatched Tyre Sizes

[J-Boy]

Hi all, i'm wondering if an offset of +35 will work on a GTR32. I dont really care how they look, im just concerned about how they perform on the track. And wot rim width is the best fit for 235/45/17 and 255/40/17 tyres? Will the performance of a GTR will affected in a negative way on the track with mismatched tyres front n rear, say 235/45/17 front and 255/40/17 rear? Any input will be greatly appreciated.

Cheers, Jyo.

[Sydneykid]

Hi all, i'm wondering if an offset of +35 will work on a GTR32. I dont really care how they look, im just concerned about how they perform on the track. And wot rim width is the best fit for 235/45/17 and 255/40/17 tyres? Will the performance of a GTR will affected in a negative way on the track with mismatched tyres front n rear, say 235/45/17 front and 255/40/17 rear? Any input will be greatly appreciated.

Cheers, Jyo.

ATTESA doesn't like different diameter tyres, wears out the clutch pack something fierce.

GTR's tend to understeer, so using smaller tyres on the front is not a good idea

Over 60% of the weight of a GTR is on the front wheels, so using smaller tyres on the front is not a good idea.

Over 75% of the initial braking effort of a GTR comes from the front brakes, so using smaller tyres on the front is not a good idea.

cheers

[J-Boy]

ok so it has to be the same size all around, what about the offset? Will a set of rims 17 x 8, offset +35, with 235/45/17 re55s all around work well on the track with a 32gtr?

[15818]

35 offset will give you a narrower track width.

Ideally you want to increase track with a lower offset, look at 17x9 30 (R33 GTR) or aftermarket GTR offset ~20.

[J-Boy]

hmmm okiez...so with a +35 offset ill be narrowing my so-called base area of contact with the track...well i think i kindda get the idea.

[J-Boy]

17x7.5, are they good fer 235/45/17 tyres? And with a offset of zero, will they fit a GTR32?

[Beer Baron]

why you would go to rims narrower than the ones the car was made with standard is beyond me. plenty of people are giving you advice, but you don't seem to want it?

I'll say it loud:

just buy the right/suitable wheels for your car!! do not stuff around with the wrong size/offset and spacers etc. it's a waste of time when you have the opportunity to save that hassle and just buy the correct fkn wheels straight up

standard wheels are 16X8 +30 so going to 17X7.5 is a dumb idea. no doubt about it. going to 17X9 +20 is a good idea. even 17X9+30 is a good idea. 17X8 +35 is NOT a good idea. yes it will work. your call will still roll along but you are going backwards from what your car had from the factory.

[J-Boy]

Yeah i get it, i was just thinking that +0 offset would give a wider track width? Think i got it wrong the other way..

[Beer Baron]

but the rims are narrower than stock. and 1.5 inches narrower than the most common 32 size (17X9). so yeah they will give more track than a stock rim but I don't understand why you'd want a narrower rim? yes a 0 offset will give more track than say a +20 offset (comparing rims of the same width) but putting a 235 on a 7.5 is not what I'd reccomend. I'd use a 235 on a 9 inch rim. sorry if I seem a little blunt but it seems to me like you are trying to re-invent the wheel for no good reason? (pun intended).

[T04GTR]

Yeah i get it, i was just thinking that +0 offset would give a wider track width? Think i got it wrong the other way..

what!! lol. vip stylzzzz. if you can find somwhere that pumpes guards to fit them let me know kaythanx