Hyperco VS VBP
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Racer
Joined: Feb 2010
Posts: 494
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From: Leominster MA
Hyperco VS VBP
I currently have a 200# hyperco spring which is nice and all but since i put a new motor (zz383) it seems to squat alot more than it use to when i get on it. But the ride is nice. How different would a 300# vbp spring ride? QA1 shocks.
Le Mans Master
Joined: Dec 2009
Posts: 6,397
Likes: 649
From: Saskatoon Saskatchewan
I bought the Hyperco 200 lb easy ride spring a couple of years ago and I still don't have it in the car. Glad to hear it gave you a nice ride, that's what I'm after. I believe my car now has a 300 lb spring and I'm not happy with the ride.
Safety Car
Joined: Oct 2004
Posts: 3,926
Likes: 739
From: Youngstown Ohio
I have a VBP 380# rear spring, and I wish would I have bought a 420#. These springs are not as stiff as the numbers would indicate, compared to steel spring numbers. I have QA-1 adjustable rear shocks, and I can adjust the ride from very soft to very stiff. The shock adjustment affects the ride more than the spring#.
Le Mans Master
Joined: Dec 2009
Posts: 6,397
Likes: 649
From: Saskatoon Saskatchewan
I wouldn't trust the majority of Corvette owners to know what a soft ride is. I think you both have pacebo effect, you expect your ride to be good so you think it is even though its harsh. When someone says their Bilstein sports give a soft ride that's a clue that they're out of touch. I don't buy that a fiberglass spring of 360lb is more "compliant" than a steel spring of 360 lbs - the 360 lb measurement is a measurement of how compliant a spring is, a 360 lb steel spring is just as compliant as a 360 lb fiberglass spring. There's no such thing as a spring taking the same weight to deflect and yet somehow being softer, that's just cognitive dissonance.
Safety Car
Joined: Oct 2004
Posts: 3,926
Likes: 739
From: Youngstown Ohio
I wouldn't trust the majority of Corvette owners to know what a soft ride is. I think you both have pacebo effect, you expect your ride to be good so you think it is even though its harsh. When someone says their Bilstein sports give a soft ride that's a clue that they're out of touch. I don't buy that a fiberglass spring of 360lb is more "compliant" than a steel spring of 360 lbs - the 360 lb measurement is a measurement of how compliant a spring is, a 360 lb steel spring is just as compliant as a 360 lb fiberglass spring. There's no such thing as a spring taking the same weight to deflect and yet somehow being softer, that's just cognitive dissonance.
The OP wants to eliminate some of the squat on acceleration with the 383 engine. You need quite a spring to do that. VBP recommends a 360# for a performance small block, or average big block. A 300# doesn't come close. Yes, it's firmer than a 200#, but it won't get the job done without stiff shocks.
