Headers?

i was just talking to him yesterday i am going to give him my car bc i dont drive it after 30 of this month so we are going to see what we come up with
 
I was thinking about getting a set of junkyard exh manifolds and porting them incase it doesnt go well. lol. would that result in a torque curve going the wrong direction?
 
Likely not worth the effort of trying to remove a rusty manifold from a car that sits, even if you're running a power adder on your car. I believe you'll only gain power by having each pipe equal length and insulating them. I think you'd be lucky to get 10 HP with a real equal length header and hi-flow cat, and cat back system; maybe a little more on an engine with turbo/supercharger/nitrous.
 
i have a k&n intake on mine and dont get me wrong, it really woke the car up! it has a more responsive throttle, a better sound, and a hp gain, i reccomend it to anyone with a 2nd gen v8 ls. But It seems to me like these engines at 280 hp have allready been milked from the factory for all their worth and the only real gain is from Turbo, supercharger, nitrous. is it just me?
 
i have a k&n intake on mine and dont get me wrong, it really woke the car up! it has a more responsive throttle, a better sound, and a hp gain, i reccomend it to anyone with a 2nd gen v8 ls. But It seems to me like these engines at 280 hp have allready been milked from the factory for all their worth and the only real gain is from Turbo, supercharger, nitrous. is it just me?

It is just you
 
Improvements

I have said on this website before, that the addition of an intake tube and cone filter, and a full cat-back system from Magnaflow made no difference AT ALL to my one mile time at Maxton. The car sounded much better, and the addition of the NX 'Pro-300' (now 400) spray system with a stand-alone methanol fuel delivery attached made a substantial improvement. It's entirely possible that the spray-'n'-fuel was helped by the intake/exhaust improvement but with an otherwise stock car the improvement was entirely in audibility.

KS
 
Hello, new here. Since from the discussion it looks like there are no headers available for the LS, has anyone looked into the possibility of using Jaguar manifolds since the V8s are Jag engines? Might there be any improvement using manifolds from a 4.2, say? Thanks.
 
An assiduous study in the archives here will show that there ARE headers available if you care to pay for them. For an all-out effort they are probably worth while but they're fairly pricey. Since it would take about the same level of effort to add Jag manifolds, I wouldn't bother to do it as a stand-alone project. The manifolds for my four litre AJ27 engine look very much the same as the ones that came on my '02 3.9 engine. They MAY be a little larger.

KS
 

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