my04gt

im looking for a good brand of lower rear control arms, my 20"s are still spinning so I need something to plant it...

WaterDR

20" rims = spin, spin, spin. The sidewalls are too dam stiff. LCA's or no LCA's, unless you are getting some wheel hop, I think you are out of luck.

The difference in side wall stiffness from 17" to 20" tires is huge. They simply don't hook-up.

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

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madmatt

Yes, like he said, its not the lca's. Spend the money for some 16 inch rims in back wiht sticky tires instead. That'll help ya.

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WaterDR

I don't want you to think that you are in hopeless situation. It is just that, if you want traction, don't put on 20 inch wheels. If you like them, then stick with 'em and put up with a loss in traction as well as acceleration.

On a side note, I recall reading a test in MM&FF a while back. They were driving '05 Saleens and '05 GT's as well as Steeda's and some other tuner cars.

The Saleens had 20 - 30 more hp than a stock GT, but were slower from 0 - 60 and in the 1/4 mile. The reason stated was the larger rim size (I think they have 19's, but I don't remember). Not only do larger rims have a tougher time hooking, but they have higher rotational mass, so they are harder to get turning and tougher to stop.

BTW, my comments are all based on your 20" wheels and tires still having the same height as stock. If you have a taller tire and wheel height, things may be a bit different.

A taller tire and wheel might mean that you could hook-up a bit better, but will even have slower acceleration. It's like dropping a gear ratio (say going from 3.73's to 3.08's depending on the actual height). Theoretically, in this case, you will have a higher top speed.

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

My Car

My Email