Front Tyres on R34 GTR, fitment, etc, *question*

[Kinkstaah]

I have a question with regards to R34 GTR guards.
All the info here is quite old. Useful, but old.

At what point does the bumper itself become a clearance issue with wide wheels on a R34 GTR, specifically the part I've drawn in red here:

All of the info that people post about implies that 285 is as far as you'd go before scrubbing becomes an issue, but they speak of hitting the inner plastic liners, not the bumper itself.
Just how wide could you go if you took the liners out?

Has anyone done it? I have been messing with my own car and spacers and heavily cursed my lack of planning, but I might not feel so bad if there's actually no gains to be had by going a GTR guard and front bar combination for $5k+ of money I do not have after spending about that much already on my solution which now has problems. (Woo)

At least I now know why GTR guards and bumpers flare out like this over their GTT lesser cousins.



I feel that in 2024, someone has gone further and attempted to run 315's or somesuch on the front of a R34 GTR.
If you have, please post. If you're tried and failed for some other reason definitely post so I feel better about my mistakes

[djvoodoo]

Pretty sure REAP3R (white 34 R) runs 305 x 30's on a 19x11 inch wheel. Stock guards by the look of it (minus liners i guess)

[joshuaho96]

I'd be careful of rubbing past the fender liner because one of the main EFI harnesses runs through there with not a lot of room to spare.

[Duncan]

I don't know the answer with a 34, but for sure the standard bumper location is the limiting factor with a 32, that is where the larger diameter tyres I was trying to run were rubbing (noting I had already rolled the guard lip)

[ianp]

I had 295s on mine when I had a 34 and they didn't rub and that was with Nismo coilovers

[niZmO_Man]

On 06/06/2024 at 5:50 AM, ianp said:

I had 295s on mine when I had a 34 and they didn't rub and that was with Nismo coilovers

Do you have any pictures? Love to see chunky tyres on our cars.
Guards were made for 300mm slicks so let's see them chonky bois!

[ianp]

Ignore the monster truck ride hide, I messed up on the offsets and widths and ended up ditching them a few weeks later when my coilovers didnt fit

[niZmO_Man]

You didn't state your specs bro...

[ianp]

They were 19*11 +25 with a 10mm spacer to clear the shocks. Tyres from memory were 295/35/19

[Kinkstaah]

17 hours ago, ianp said:

They were 19*11 +25 with a 10mm spacer to clear the shocks. Tyres from memory were 295/35/19

One of my questions about this was how/if the R34 GTR strut is different to the R34 GTT (I mean it could easily be).

In my car, the 18x9+30 feels like it is 0.0001mm from the strut with a 265 on it. Given a 10.5 +15 is closer to the strut than an 18x9+30, it would certainly foul... surely

I am encouraged that a 19x11+25 would need a spacer to clear the R34 GTR suspension arms at least!

[ianp]

3 hours ago, Kinkstaah said:

One of my questions about this was how/if the R34 GTR strut is different to the R34 GTT (I mean it could easily be).

In my car, the 18x9+30 feels like it is 0.0001mm from the strut with a 265 on it. Given a 10.5 +15 is closer to the strut than an 18x9+30, it would certainly foul... surely

I am encouraged that a 19x11+25 would need a spacer to clear the R34 GTR suspension arms at least!

It only needed a spacer because it was the Nismo struts with the external resevoir, if it had been regular coilovers, it probably would have been ok

[Kinkstaah]

That's the thing I don't get is the issue is not the shocks in the 34 GTT......

I assume the GTR geometry is different here.

SQUARE PEG IN ROUND HOLE WHY WON'T YOU WORK!