Anybody know anything about these?
Discussion
Hey there.
I'm looking into some headers for my '97 GTS and i'm close to buying some SVS Racing headers for it. Has anybody heard anything about these, good, bad or indifferent?
Thanks for hopefully some help! lol I'm sure you guys will deliver something, you never let me down!
Cheers,
Craig
I'm looking into some headers for my '97 GTS and i'm close to buying some SVS Racing headers for it. Has anybody heard anything about these, good, bad or indifferent?
Thanks for hopefully some help! lol I'm sure you guys will deliver something, you never let me down!
Cheers,
Craig
If you' re talking about these, you're gonna have to fight hard:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?Vi...
They're probably the best headers as far as performance is concerned, with the 5 into one Burns collector, especially with heavily modified engines.
Do a search on the VCA board.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?Vi...
They're probably the best headers as far as performance is concerned, with the 5 into one Burns collector, especially with heavily modified engines.
Do a search on the VCA board.
From Dan Craigin, DC Performance:
I worked directly with Edelbrock on these headers years ago. We did all the
testing on a rear wheel dyno and an engine dyno. Hp gains were about 20hp peak
with the stock exhaust on the production engine. SVS, Caldwell and Bellanger
headers all made more peak power (but not smog legal). What was very interesting is that Edelbrock headers made about the same power as all the rest
when a cam and ported heads were added (probably due to the large primary tubes). On a stock engine, the SVS 1 1/2 primary tube headers made the most average power of all. Bigger is not always better on a stock engine.
On the track smaller primary tube headers pulled better out of the corners but not as well on the straight aways.
The best headers for average power on a modified engine were the Caldwell 1/58ths to 1 3/4 stepped headers with 29 inch primary tubes and Burns stepped
collectors.
On the Edelbrocks, always torque the lower flanges evenly, use production header to head gaskets and use the heat shields.
Just my 2 cents.
I worked directly with Edelbrock on these headers years ago. We did all the
testing on a rear wheel dyno and an engine dyno. Hp gains were about 20hp peak
with the stock exhaust on the production engine. SVS, Caldwell and Bellanger
headers all made more peak power (but not smog legal). What was very interesting is that Edelbrock headers made about the same power as all the rest
when a cam and ported heads were added (probably due to the large primary tubes). On a stock engine, the SVS 1 1/2 primary tube headers made the most average power of all. Bigger is not always better on a stock engine.
On the track smaller primary tube headers pulled better out of the corners but not as well on the straight aways.
The best headers for average power on a modified engine were the Caldwell 1/58ths to 1 3/4 stepped headers with 29 inch primary tubes and Burns stepped
collectors.
On the Edelbrocks, always torque the lower flanges evenly, use production header to head gaskets and use the heat shields.
Just my 2 cents.
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