GT3 wheels on a GTS?
#31
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Thread Starter
As for Front Clearance w/o changing suspension or tires (keep 245 tires);
Inner clearance reduces by 6.5mm (1/4").
Thats 4mm (from wheel offset change) + 2.54mm (from increased tire section width, from wheel width change).
So if you can get a 1/4" rod and it clears your strut and tire w/ room to spare you should be OK
As for outboard fender clearance, that reduces by 1.5mm.
(4mm - 2.54mm)
Therefore, w/o increasing track, you are stuck with the same conservative fender clearance as now.
Inner clearance reduces by 6.5mm (1/4").
Thats 4mm (from wheel offset change) + 2.54mm (from increased tire section width, from wheel width change).
So if you can get a 1/4" rod and it clears your strut and tire w/ room to spare you should be OK
As for outboard fender clearance, that reduces by 1.5mm.
(4mm - 2.54mm)
Therefore, w/o increasing track, you are stuck with the same conservative fender clearance as now.
If you wanted to up-size to a 255 tire.
That would put you 9mm (0.4") closer to strut & 4mm (0.2') closer to outer fenders.
That is the case where you probably need to increase track.
GT3 uses same Control Arms (forward link) and Crossmember as us.
However, just about everything else is different (Wishbone, Knuckle, Hub, Upper Strut Mount etc.).
All those different things probably account for the track increase, that requires the extra offset on the GT3 Wheels.
According to what I see here on Elephants Website, you can widen the track with their Lower Control Arm [aka Wishbone] and Camber Plates.
http://www.elephantracing.com/suspen...ntrol-arms.htm
I might look into this track increasing myself.
Also, if I ever got a GTS w/ CL I would want GT3 wheels on it too.
That would put you 9mm (0.4") closer to strut & 4mm (0.2') closer to outer fenders.
That is the case where you probably need to increase track.
GT3 uses same Control Arms (forward link) and Crossmember as us.
However, just about everything else is different (Wishbone, Knuckle, Hub, Upper Strut Mount etc.).
All those different things probably account for the track increase, that requires the extra offset on the GT3 Wheels.
According to what I see here on Elephants Website, you can widen the track with their Lower Control Arm [aka Wishbone] and Camber Plates.
http://www.elephantracing.com/suspen...ntrol-arms.htm
I might look into this track increasing myself.
Also, if I ever got a GTS w/ CL I would want GT3 wheels on it too.
#32
I spaced on the GTS w/CL already having the 2.5mm, inboard reduction and outboard increase, due to the 9" CL wheels.
So what I said above is relative to an S w/ 8.5" wheels.
In your case, you loose 4mm (5/32") inboard clearance and gain 4mm outboard clearance.
Still not what you want outboard, but it's only 1.5mm (2/32") less flush, than an S w/ 8.5" wheels.
If you want to test for clearance, just get a 1/4" Dowell Rod and use it as a feeler gauge to check clearance, between your tire and strut.
Even if it fit's tight you will be fine, since its 3/32" more than you need.
You want to have at least that much extra clearance.
Last edited by lunarx; 08-23-2015 at 02:05 PM.
#33
Rennlist Member
I know it is not the same but I had GT3 wheels (8.5"x19"F & 12"x19"R) on an '07 997 C4s and they were really sweet! No issues at all! Got lots of compliments on that car! Sometimes I wish I still had it!
#38
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Join Date: Sep 2009
Location: Garmisch Partenkirchen Germany
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My GTS is lowered with H&R springs ...same 30mm as Gt3 to standart 991
bought the Wheels online and mounted them in my Garage .
Very good comfort not too rough definite better feeling as PASM standart springs.
bought the Wheels online and mounted them in my Garage .
Very good comfort not too rough definite better feeling as PASM standart springs.
#39
Rennlist Member
they look great!
#40
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Thread Starter
I ordered a set of the GT3 wheels in platinum from Suncoast. Winter tires (Michelin Alpin PA4s) will go on the stock GTS wheels and the Pzeros will go on the GT3s when the car is delivered in December. Will post pictures shortly thereafter.
#41
Rennlist Member
Just curious are 991 GTS wider bodies than 991 GT3 at the back. These wheels don't look as flush on GTS as they do on GT3's. Or it could be the picture angle
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