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GT350R Springs for GT (high rate, minimum lowering)

Rocketman

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Can the GT350R front and rear springs be run on the stock PP dampers? I know it's been stated that it is not recommended but would it actually work?
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BmacIL

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Can the GT350R front and rear springs be run on the stock PP dampers? I know it's been stated that it is not recommended but would it actually work?
Yes but it will be pretty uncontrolled and bouncy.
 

Niz55

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So if I install the R springs on my 350 it will raise the front end little bit correct?
 

BmacIL

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So if I install the R springs on my 350 it will raise the front end little bit correct?
No, R sits lower than the normal GT350.
 

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BmacIL

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I thought it was due to the tire side walls bring lower.
It's both. The front of the R sits approx 1" lower than the GT350, half from the tire sidewall, half from the springs.
 

EFI

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Can anyone confirm the exact part numbers for the R springs? There's a bunch of different ones and prices, none ending in M however. And the rears don't differentiate between left and right.
springs.png
 

BmacIL

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Front: FR3Z5310M
Rear Left: FR3Z5560T (Now X Suffix)
These are the ones.

Food for thought: the BMR SP083 (rev C) handling springs are about the same price for a set of four. The rates are very similar, with a tad more drop. They used to be further apart in those attributes but with the Rev C, they're a great choice for handling rates without too much lowering. The R springs are also amazing.
 

Bahndvr

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The R springs are amazing and when mated up with the Steeda Pro-Action fixed dampers it's awesome.
 

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Myshelby3425

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Yes but it will be pretty uncontrolled and bouncy.
Bmacil what rear springs do you recommend if I’m going with R springs and steeda fixed shocks if I’m running the R front 34mm sway and rear R 24mm sway?
 

BmacIL

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Bmacil what rear springs do you recommend if I’m going with R springs and steeda fixed shocks if I’m running the R front 34mm sway and rear R 24mm sway?
Probably R rears also. FR3Z-5560-X (or FR3Z-5560-T).
 

BmacIL

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Would the sp088 rear be too soft?
IMO yes. The car would understeer. If you're not tracking it, then it'd be fine and would ride quite nice, though.

Edit: wait, you have a GT350? If so, you need the left and right rear springs, not just two of the lefts. Right side is FR3Z-5560-W (or FR3Z-5560-P). SP088 would not work, but talk with Kelly [MENTION=9985]BMR Tech[/MENTION] about his Magneride springs. Even if you don't have Magneride they'd be excellent. Give him a call.
 
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Myshelby3425

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IMO yes. The car would understeer. If you're not tracking it, then it'd be fine and would ride quite nice, though.
Yea no tracking. It’s a daily with occasional drag days. I only get brave on curves when coming on and off the expressway, lol.
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