rear spring rate
08-17-2011, 10:59 AM
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rear spring rate does anyone know the stock rear spring rate on a 4th gen. I see a lot of people using stock springs for drag racing. I have the BMR's and wandering if it is worth switching or not. I think the BMR's are 170 lb
08-17-2011, 02:09 PM
#2
115-ish...
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www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
08-17-2011, 02:41 PM
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rear spring rate OK. Thanks a lot. What is usually a good rear spring rate for drag racing with a 6 speed, twin disc, 650+ rwhp on 28x10.5s slicks on a poorly prepped track? 3640lb race weight.
08-17-2011, 11:28 PM
#6
Perhaps a touch.
I run stock springs though so maybe someone more in tune with drag racing could help you better but from purely a drag racing perspective, I don't think lowering springs are the best bet because they usually increase rate from stock and give up travel. For drag racing and transferring weight rearward, a little more travel and less rate isn't a bad thing.
That said, you can still make a car with handling oriented springs launch decently. What shocks do you have? The shocks are also a big player in how fast weight gets shifted around.
I run stock springs though so maybe someone more in tune with drag racing could help you better but from purely a drag racing perspective, I don't think lowering springs are the best bet because they usually increase rate from stock and give up travel. For drag racing and transferring weight rearward, a little more travel and less rate isn't a bad thing.
That said, you can still make a car with handling oriented springs launch decently. What shocks do you have? The shocks are also a big player in how fast weight gets shifted around.
