Fiberglass vs Steel Leaf Springs - 1968 Camaro - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

 
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post #1 of 11 (permalink) Old Jan 13th, 02, 09:43 AM Thread Starter
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I need to replace the Rear Leaf Springs on my 68 Camaro because the tires are bottoming out when driven on bumpy roads. Are the fiberglass springs (such as the ones offered by VB) a good product as compared to the steel springs? Will the fiberglass product be reliable and last a long time? Fiberglass is almost twice the cost, so I dont want to buy them if I will need to replace them in just a few years. The car puts out about 250 hp, but I plan to improve on this down the road. The suspension is mostly stock with the exception of KYB shocks and Competition Engineering Sub frame connectors. Thanks!
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post #2 of 11 (permalink) Old Jan 13th, 02, 03:16 PM
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Do a search b/c they are hp limited as I posted earlier. I think some of the guy's say that up to 400 or 450hp is about their limit but I personally don't know b/c I went the three leaf mono replacements from JCW. Plus I don't think you can run "slapper-bars" with them. pdq67



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post #3 of 11 (permalink) Old Jan 13th, 02, 05:38 PM
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i recall someone running them and having a 600 horse motor. Maybe my mind is just going... I seem to recall the person saying that the tech people told him it should be fine as long as he isn't getting big traction and/or doing neutral drops.

As far as traction aids... I think you can only use cal-tracs type bars with these. At least, that is what they sell to go with them if you want that sort of thing.
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post #4 of 11 (permalink) Old Jan 14th, 02, 07:02 AM
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I'm running the VB fiberglass springs on my car. I have a 500+ HP SB (at least according to Desktop Dyno) and the springs work fine.

I have heard stories from one member here who reported that his springs delaminated lengthwise. I believe he may have been doing some hard launches at the track.

In any event, mine work great. No wheel hop (and no traction devices) and the car hooks reasonably well, although, I don't race at the track (yet) or run slicks or regularly dump the clutch at high RPMs. It rides pretty good considering low profile 17" tires and a lot of polyurethane bushings and cut coils. I also run lowering blocks with mine with no ill effects.

I can't tell you if they're better than regular steel springs but I do like them and they work great. I see no reason they won't last for many years - mine are 7 or 8 years old and are still as good as new.

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'69 400SB, Richmond 5-speed
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post #5 of 11 (permalink) Old Jan 14th, 02, 03:41 PM Thread Starter
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Thanks, you all gave me the insight I was looking for. I am going to go for the fiberglass springs. Thanks again!
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post #6 of 11 (permalink) Old Jan 15th, 02, 01:18 AM
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I just bought some used. Haven't got them in my hands yet, but they are on the way. I'm putting an 8.5 rear and the fiberglass springs in at the same time. Let me know how you like it!


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post #7 of 11 (permalink) Old Jan 15th, 02, 12:55 PM Thread Starter
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Spames, I should be ordering them soon. Let me know how it works out for you to.
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post #8 of 11 (permalink) Old Jan 16th, 02, 11:51 AM
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I'm using the VB springs on both my 67 and my 70.
I love them, they ride great, absorb wind- up, and save a bunch of weight. No traction device is needed.
I'm running a 430 horse motor with the 67, and I run it hard with no problems, even though VB says 400 max HP.

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Don~ ZZ430DropTop
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post #9 of 11 (permalink) Old Jan 16th, 02, 01:28 PM Thread Starter
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Sounds good ZZ430DropTop67RS, VB also states that the composite springs can not handle excessive heat. My exhaust crosses over the springs within an inch toward the tips of the exhaust. How close does your springs come to the exhaust? Do you think I will have a heat problem from the exhaust? Thanks.
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post #10 of 11 (permalink) Old Jan 17th, 02, 09:36 AM
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On my 70 the tailpipe is about 1/2 inch away, no problem unless making direct contact.

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post #11 of 11 (permalink) Old Jan 17th, 02, 04:15 PM Thread Starter
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Sounds good. I have about 1/2" clearance on one side and about 1" clearance on the other. Thanks!
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