I have a 62 with heidts mustang II front end with the 375 lb springs. Front end of car is extremely stiff. I have an ls1 with aluminum brakes, no Ac. What coil over system would you recommend and what springs rate?
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They want me to pull a spring and measure the over all length and coil size to see exactly which ones I have. I’m not going to pull a mad put back a spring for that. I was thinking Qa1 or Vikings. Just wasn’t sure which ones to get that will work for my set upAluminum brakes would be unsprung weight and wouldn’t have any effect on the springs. An aluminum block would though.. You do probably have too much spring rate.. Does Heidts have any recommendations..?
They want me to pull a spring and measure the over all length and coil size to see exactly which ones I have. I’m not going to pull a mad put back a spring for that. I was thinking Qa1 or Vikings. Just wasn’t sure which ones to get that will work for my set up
Will these springs be soft enough? Also will they fit with nothing need changing?I suspect a pair of 325lbs. springs would be really close to what you want assuming you actually have 375lbs. springs now, but an adjustable setup is best.
These kits provide the highest quality performance characteristics for your Mustang II front end. The springs are designed specifically for use with the QA1 coil-over shocks and the factory upper spring pocket. This enables the use of a longer spring, which allows for a lighter overall spring...www.speedwaymotors.com
So the invoice says 300lb but the part number when I put in refers to 375My only concern with saying yes is the possibility you have springs that are not 375lbs. on there now. If you are sure that is what you have then yes, 325lbs. springs will get you closest to what you want without buying an adjustable coilover kit.
Speedway motors has all the expert advice you need.....But I agree with xxdabroxx if you could remove the shocks and drive it around you may find the shocks are causing all your issues.which spring rate and brand coil over would you recommend? also and idea on brand for lower control arm for that ?