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Anybody have the factory alignment specifications for a GTS?

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Old 11-16-2023, 04:25 AM
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4carl
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Default Anybody have the factory alignment specifications for a GTS?

I can’t find them anywhere I have them for my Gt3.
I checked the camber last night.
The rears were -1.8&1.9 the front was .9.
I want to see what the factory settings are.
I’ll probably increase the front camber to 1.5 with about 1/64 of toe
The car steers great, but I would like to sharpen it up a little.

Last edited by 4carl; 11-16-2023 at 04:30 AM.
Old 05-23-2024, 07:34 AM
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OMTarga4S
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Originally Posted by 4carl
I can’t find them anywhere I have them for my Gt3.
I checked the camber last night.
The rears were -1.8&1.9 the front was .9.
I want to see what the factory settings are.
I’ll probably increase the front camber to 1.5 with about 1/64 of toe
The car steers great, but I would like to sharpen it up a little.
Hey, what settings did you decide to use? I’m scheduled for an alignment and want to increase the sharpness at the front end. Thanks
Old 05-23-2024, 09:46 AM
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zachr
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Old thread and I think you got what you needed, but for what it's worth my GTS came from the factory at about 1.2°F and 2.1°R camber. 2mm rear toe in, 0.5mm front toe in. This was measured after like 6k miles though, so take it with a grain of salt.

I've shared my autocross specs here before: max front camber (~1.8 on my car), 2° rear, 1.5mm toe out front, 0 toe rear. Very sharp, but balanced and mostly well behaved for daily use. At high speeds under heavy braking it can pull a little aggressively to one side on bad pavement though. I'd probably add 0.5mm rear toe in and reduce to 1mm (or slightly less) front toe out for track duty, but I think the toe out is pretty important - with my previous specs (around 0 front), autocross was painfully understeery.

Last edited by zachr; 05-23-2024 at 09:54 AM.
Old 05-24-2024, 02:35 AM
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4carl
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Originally Posted by OMTarga4S
Hey, what settings did you decide to use? I’m scheduled for an alignment and want to increase the sharpness at the front end. Thanks
I ended up with -1.5 in both of the fronts 1.8 and 1.9 in the rear 8th inch of total rear toe 1/32 of toe in for the front.
pretty much the same settings as my Gt3 that came from the factory with -1.51.6 on all four wheels.
reset the front toe on the Gt3 to 1/32 and it was towed out from the factory.
both cars drive great Gt3 feels much more nimble with basically the same alignment settings.
Gt3 has rear wheel steering the GTS does not both are manuals.
Old 05-24-2024, 04:33 AM
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Originally Posted by 4carl
I ended up with -1.5 in both of the fronts 1.8 and 1.9 in the rear 8th inch of total rear toe 1/32 of toe in for the front.
pretty much the same settings as my Gt3 that came from the factory with -1.51.6 on all four wheels.
reset the front toe on the Gt3 to 1/32 and it was towed out from the factory.
both cars drive great Gt3 feels much more nimble with basically the same alignment settings.
Gt3 has rear wheel steering the GTS does not both are manuals.
Does the RAS present any challenges or change the protocol when performing an alignment?
Old 05-25-2024, 09:37 AM
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Originally Posted by 4carl
I ended up with -1.5 in both of the fronts 1.8 and 1.9 in the rear 8th inch of total rear toe 1/32 of toe in for the front.
pretty much the same settings as my Gt3 that came from the factory with -1.51.6 on all four wheels.
reset the front toe on the Gt3 to 1/32 and it was towed out from the factory.
both cars drive great Gt3 feels much more nimble with basically the same alignment settings.
Gt3 has rear wheel steering the GTS does not both are manuals.
Thanks for the information. I also have RAS, but forget to mention it’s a 4GTS. My current settings are : LF -1.0 RF -0.9 TFT 0.03 RL and RR - 1.7 TRT 0.34. I’m leaning toward having the front alignment adjust only since my rear is close to what you have. Any issues with abnormal tire wear with your settings in the front tires ?
Old 05-25-2024, 03:31 PM
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Do you need to add aftermarket parts (arms, camber plates, shims) to get more camber up front on the GTS?
Old 05-25-2024, 04:05 PM
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zachr
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Originally Posted by pal
Do you need to add aftermarket parts (arms, camber plates, shims) to get more camber up front on the GTS?
I haven't looked into what specifically you'd need to add, but yes -- max front camber is around 1.8 from the factory.
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Old 05-25-2024, 06:37 PM
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4carl
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Originally Posted by OMTarga4S
Thanks for the information. I also have RAS, but forget to mention it’s a 4GTS. My current settings are : LF -1.0 RF -0.9 TFT 0.03 RL and RR - 1.7 TRT 0.34. I’m leaning toward having the front alignment adjust only since my rear is close to what you have. Any issues with abnormal tire wear with your settings in the front tires ?
I found over the years that running one and a half half degrees negative is about as much as you wanna run for a street or combination car.
doesn’t seem to affect tire wear where you’ll really notice it if you start pushing -2 .
when you do align rear wheel steering you have to have the key turned on that centers the rear wheels
on both my GTS in my Gt3 I didn’t have to screw with the back
Luckily the rears were pretty good and the toe was even on both sides.
which to me is one of the more important things to keep the car going straight under power
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Old 05-25-2024, 06:40 PM
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Originally Posted by zachr
I haven't looked into what specifically you'd need to add, but yes -- max front camber is around 1.8 from the factory.
on my GTS the max I could get with the strut pushed all the way in was 1.5.
I don’t think you’re gonna be able to get 1.8 without camber plates
the Gt3 I think you can get probably close to 2° without doing shims.
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