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Dedicated AutoX/Track Spring Rates

So to bring this thread back from the dead. According to the math I'm coming up with 1100 lb springs up front and 900 lb in the rear for suspension

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		Nissan 370Z Forum > Nissan 370Z Tech Area > Track / Autocross / Drifting / Dragstrip
Dedicated AutoX/Track Spring Rates

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02-23-2015, 06:58 AM	#20 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36942	So to bring this thread back from the dead. According to the math I'm coming up with 1100 lb springs up front and 900 lb in the rear for suspension frequencies of 2.35hz (fr) and 2.31hz (rear). As it sits the corner weights are ~900lbs at each front corner and ~700 lbs at each rear corner. Car is used for autox. Will be using the stock spring locations as the rules prohibit going to a true coil over. Are these too stiff or just right? __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

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