Spring rate question
Thread Starter
Burning Brakes
Joined: Aug 2015
Posts: 1,116
Likes: 850
From: Southern California
2024 C7 of the Year Finalist - Unmodified
Spring rate question
Guys, is 873 spring rate for the rear o much for weekend toy in the canyons?
i enjoy great handling cars, my c5 has lots of body roll,
my vette will not see race truck use,
unfortunately hyperco is out of stock with 12406 part number, that would of been 785 rate,
they only one I can find is 873,
Does anyone have street driving experience with over 850 T2 rate springs ?
Thank you.
i enjoy great handling cars, my c5 has lots of body roll,
my vette will not see race truck use,
unfortunately hyperco is out of stock with 12406 part number, that would of been 785 rate,
they only one I can find is 873,
Does anyone have street driving experience with over 850 T2 rate springs ?
Thank you.
Last edited by C7ZO6; May 30, 2020 at 11:16 AM.
Thread Starter
Burning Brakes
Joined: Aug 2015
Posts: 1,116
Likes: 850
From: Southern California
2024 C7 of the Year Finalist - Unmodified
i got a new set of sway bars also. ( not installed yet )
but sway bars and springs work together, original base model springs are unbelievable soft,
during corners front end sinks.
for example today I was doing a test by pressing down my C7 /ZO7, the suspension is rock hard when I press on the body, front or back, it won’t even go down half and inch.
but on the c5 when I press down, suspension sinks almost 4 inches.
on the C7 ZO6 with ZO7 performance option, spring rates front is 1085 and rear is 1011.
car is laser sharp during corners, I am looking for something at least closer to that for the C5.
but I understand every car has different geometry and it will be hard to say How 870 spring rate will act on C5.
but sway bars and springs work together, original base model springs are unbelievable soft,
during corners front end sinks.
for example today I was doing a test by pressing down my C7 /ZO7, the suspension is rock hard when I press on the body, front or back, it won’t even go down half and inch.
but on the c5 when I press down, suspension sinks almost 4 inches.
on the C7 ZO6 with ZO7 performance option, spring rates front is 1085 and rear is 1011.
car is laser sharp during corners, I am looking for something at least closer to that for the C5.
but I understand every car has different geometry and it will be hard to say How 870 spring rate will act on C5.
Thread Starter
Burning Brakes
Joined: Aug 2015
Posts: 1,116
Likes: 850
From: Southern California
2024 C7 of the Year Finalist - Unmodified
i am putting together all the parts so I can replace them all at once,
got C6 ZO6 shocks
Hotchkins sway bars.
Moog sway bar links.
just now I bought hyperco 870 rate rear spring.
i cant find front hyperco 670 rate, I may have to stick with 570.
Racer
Joined: Mar 2017
Posts: 406
Likes: 59
From: Northern California
I can't compare with the base model because I haven't driven one. But I can say the Z has very good handling. There is some diving under heavy breaking but that is mitigated with better shocks (rebound). My experience is the stock Z spring with the bilstein shock is a great package. Can't complain at all.
I have read on these forums where people say the ride height has changed when adding C6Z shocks. I would be very concerned if that is the case. Ride height should never change by changing shocks. Make sure you have enough travel in the c6 shock. The higher spring rate should help.
I have read on these forums where people say the ride height has changed when adding C6Z shocks. I would be very concerned if that is the case. Ride height should never change by changing shocks. Make sure you have enough travel in the c6 shock. The higher spring rate should help.
