GT350R Alignment Specs for GTPP

[aleccolin]

With the Steeda progressive/adjustable springs I'm approximately at GT350R spring rates, lowered about 1.25" front and rear so a little lower than the R.

Based on the last two hours of reading I see no reason I can't just request the GT350R alignment specs, understanding that my camber will be more negative (I'm okay with that) since I do not have camber plates in front or rear adjustment beyond OE. That means the following:

Front
Camber (non-adj): probably (-1.6) to (-1.8) given my ride height
Caster (non-adj): should be around 6.9 to 7.1
Toe: 0.06 deg total toe IN (R spec)

Rear
Camber: should get to around (-1.8 to -1.9) with the OE adjustment
Toe: 0.15 degrees toe IN each side; 0.30 degrees total toe IN (R spec)

Anybody see a glaring problem with this?

Also, WTF is up with the front toe spec being different for every model? The GT/PP is zero, GT350 is (-0.10) total toe OUT, and the R is 0.06 total toe IN. Is that all tire size and ride height?

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[BmacIL]

Those will work. The toe specs for the front are different based on the tires (width, offset, type). Each will have different needs or to counteract tramlining.

 

[aleccolin]

Okay sweet, I’m on MPSS right now, will switch to sport cup 2 when this set is done which might be a while.

 

[DarkestHour]

Steeda has informed me to run -1.5 on each corner with 1/16 total toe front and rear each.

 

[aleccolin]

Steeda has informed me to run -1.5 on each corner with 1/16 total toe front and rear each.

If I had additional camber adjustment front and rear I might be able to get those numbers. As it stands I think I’ll be lucky to get -1.8 rear at the max OE adjustment. The front will probably hit around -1.7 based on what others are seeing for lowered cars. I’d be thrilled to be able to get them even, but it’s doubtful.

Since it’s not a daily driver I’m okay with the extra camber for occasional track and autocross duty and spirited backroading, as long as I can keep it less than -2.0 which is the max recommended for the MPSS.

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