tubular a-arm drive test
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
tubular a-arm drive test
just coming back from a night ride to test the new vansteel tubular a-arms...it could be because my old stock arms bushing were pretty much deteriorated or only because the a-arms new geometry (or because both iussues) but as a matter of fact the ride on bends is much more precise, specially under throttle load at the exits, previously i had to 'compensate' a noticeable swing and loose of control, now i have the car chassis more precise on the tarmac and obbeys to any slight movement of the driving wheel in a more sincere way...
just my 2 cents
just my 2 cents
Last edited by panic; Jan 26, 2007 at 03:09 PM.
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
also, my old arms rubber bushings were in bad conditions (the left one was quite deteriorated...), new arms came with polybushing so part of the 'gains' could have come from that iussue too...
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
anyway the lower arms are pretty new and polibushed, they came in the 'front transverse monospring full kit' that i just bought last year.
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Team Owner
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
I am curious about the alignment specs you used.
To all members here: do you have stock or performance
alignments?
I have a agressive align and have bump steer,
well worth it to me
To all members here: do you have stock or performance
alignments?
I have a agressive align and have bump steer,
well worth it to me
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
i've changed mine so many times and have gone to so many different shops to do it, there is always something that does not satisfy me, i'm still looking for the 'ultimate' alignment but maybe it doesnt exist!
Intermediate
Joined: Feb 2006
Posts: 42
Likes: 0
From: Birmingham AL
Not intending to change the subject, Panic. But, since you mentioned it, do you know what the spring rates are on your front monospring at the different settings? I'm especially interested in what the "heaviest" spring rate setting is.
Thanks!
Thanks!
Drifting
Joined: Sep 2006
Posts: 1,986
Likes: 21
From: Columbus MN
Our front monospring system has the four position adjustments for spring rate. When explaining the positions, I use our fixed rate rear spring rates as a basis.
For example, the first position (the innermost two positions) would be like our 300# spring, a very, soft comfortable ride for the earlier Corvettes.
The second position outward, is where you would start since you have a 1980, and that would be like our 330# spring and would be a comfortable, street driving ride.
The third position out would be similar to our 360# spring that is a little stiffer and lower for light autocrossing and racing.
The fourth position would equate to our extreme spring and would have the lowest arch and highest rate for serious and drag racing, similar to our 420#.
For example, the first position (the innermost two positions) would be like our 300# spring, a very, soft comfortable ride for the earlier Corvettes.
The second position outward, is where you would start since you have a 1980, and that would be like our 330# spring and would be a comfortable, street driving ride.
The third position out would be similar to our 360# spring that is a little stiffer and lower for light autocrossing and racing.
The fourth position would equate to our extreme spring and would have the lowest arch and highest rate for serious and drag racing, similar to our 420#.
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
I asked VBP the same question when I was installing my monoleaf conversion. Here's what they said:
Our front monospring system has the four position adjustments for spring rate. When explaining the positions, I use our fixed rate rear spring rates as a basis.
For example, the first position (the innermost two positions) would be like our 300# spring, a very, soft comfortable ride for the earlier Corvettes.
The second position outward, is where you would start since you have a 1980, and that would be like our 330# spring and would be a comfortable, street driving ride.
The third position out would be similar to our 360# spring that is a little stiffer and lower for light autocrossing and racing.
The fourth position would equate to our extreme spring and would have the lowest arch and highest rate for serious and drag racing, similar to our 420#.
For example, the first position (the innermost two positions) would be like our 300# spring, a very, soft comfortable ride for the earlier Corvettes.
The second position outward, is where you would start since you have a 1980, and that would be like our 330# spring and would be a comfortable, street driving ride.
The third position out would be similar to our 360# spring that is a little stiffer and lower for light autocrossing and racing.
The fourth position would equate to our extreme spring and would have the lowest arch and highest rate for serious and drag racing, similar to our 420#.
Intermediate
Joined: Feb 2006
Posts: 42
Likes: 0
From: Birmingham AL
I asked VBP the same question when I was installing my monoleaf conversion. Here's what they said:
Our front monospring system has the four position adjustments for spring rate. When explaining the positions, I use our fixed rate rear spring rates as a basis.
For example, the first position (the innermost two positions) would be like our 300# spring, a very, soft comfortable ride for the earlier Corvettes.
The second position outward, is where you would start since you have a 1980, and that would be like our 330# spring and would be a comfortable, street driving ride.
The third position out would be similar to our 360# spring that is a little stiffer and lower for light autocrossing and racing.
The fourth position would equate to our extreme spring and would have the lowest arch and highest rate for serious and drag racing, similar to our 420#.
For example, the first position (the innermost two positions) would be like our 300# spring, a very, soft comfortable ride for the earlier Corvettes.
The second position outward, is where you would start since you have a 1980, and that would be like our 330# spring and would be a comfortable, street driving ride.
The third position out would be similar to our 360# spring that is a little stiffer and lower for light autocrossing and racing.
The fourth position would equate to our extreme spring and would have the lowest arch and highest rate for serious and drag racing, similar to our 420#.
Thanks for the info! I take it that they were comparing the performance levels with which rear springs the front monospring settings would go with. I asked the question once on the phone with VB&P and did not get as specific a response as you did. I interpret their response to mean that the 2nd position would be somewhat comparable to their 460 front coil more or less and the 3rd position would be like their 550 coil and the 4th position would be even stiffer. They really need to put that type of info on this spring in their product description.
Last edited by 74L82Cpe; Jan 28, 2007 at 02:09 PM.