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Beautiful, but 235?. Any chance of BBS FI-R fitting a GT4?
That is all the Hoosier makes for the R7 track tire in that size range (19")......the GT4 we have will be developed mainly for track use as we await our GT4 Clubsport which will arrive in 1 month.....with the mid engine, the 235 front will be fine as we will adjust the suspension accordingly....
We will use all that we have learned from the 991 GT3 as the front suspension is the same as the GT4.
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Going to keep it basic for our GT4:
BBS CH-R
19x8.5" ET51
19x11" ET56 plus 12mm spacer
Hoosier R7 in 235/35-19, and 295/35-19
Originally Posted by ShakeNBake
19x9.0 GA1R SHALLOW 5 X 130 CB 71.5 ET 48
19x11 GA1R DEEP 5 x 130 CB 71.5 ET 45 OPEN
R7 265/35R19
R7 295/30R19
Thanks for the info.
With the wheel sizes and offsets on your two setups it looks like the inside part of the rim moves out (has more clearance) between about 0.2"-0.4". Was this intentional because more clearance was needed with 19" wheels?
Beautiful, but 235?. Any chance of BBS FI-R fitting a GT4?
The FI-R is only made for Porsche Applications (at this time) in a Centerlock. We are pushing them to run a 5-Lug but no official word yet.
I also looked into 19" FI's, and those are only made in an 8.5 configuration up front (which would work technically) but the rear is only available in a 12.
Ha, no thanks! I thought they had 5 lug version too, but looks like it is only M3/4 fitment.
Originally Posted by mooty
follow me next time.
seriously, though, what is needed
uprights
bearings
calipers
anything else?
More body weight going by Joe's avatar .
Originally Posted by TAGMotorsports
The FI-R is only made for Porsche Applications (at this time) in a Centerlock. We are pushing them to run a 5-Lug but no official word yet.
I also looked into 19" FI's, and those are only made in an 8.5 configuration up front (which would work technically) but the rear is only available in a 12.
Cool, hope they do a 5 lug version of FI-R or even these that would actually fit a GT4. I am sure you will find a lot of interest here if they do it.
Great job, thanks for that. Im sure many people can refer to this..
Originally Posted by mooty
follow me next time.
i found short cut on riverside. go wide, REAL wide. some dust, then you are at phil hill
seriously, though, what is needed
uprights
bearings
calipers
anything else?
From the PCA video, it also mentioned cup axles (i'm sure you have a few of those lying around). I think they just put a cup front end on and put GT4 body panels and called it a day...
You may have issues with rear sizes greater than 295s unless you change the offset and/or camber to create more room inside. IIRC competition motorsports, sponsor on here, was able to locate 295 Trofeo Rs for the OEM 20s.
Sweet, let me know how the car drives with the R7s in your sizes. Once my Dunlops are done, I might ask Spyerx to help me bring up a 2nd set of tires so I can run R7s.
12-04-2015, 05:14 AM
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