I would go headers first and save the cam for later. Normal order of progression is intake, headers, cam with tune and pulley. Then sell the car for something newer.
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If I remember correctly I've seen a cam and headers installed by TTP for around 3600. Go with the dual comp 921 springs if you have the few extra dollars laying around.
Do both together at the same time. Save quite a bit if you do it that way.
If not..then do the kooks headers with cats for around 1800 installed and w/ ls1edit.
should throw down around 390 rwhp (give or take a few ponies)
Headers then Cam. If you do the cam first, you won't see a very big improvement, because the engine can't get the air out fast enough account of the back pressure caused by the restricted exhaust.
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Never argue with an idiot. They drag you down to their level then beat you with experience.
Headers then Cam. If you do the cam first, you won't see a very big improvement, because the engine can't get the air out fast enough account of the back pressure caused by the restricted exhaust.
Just different I guess. I went with cam (Comp Cam 232/236 585 lift on 113 LSA) and valve springs (918s) first since I don't care for loud exhaust all the time. With tuning on a DynoJet 248 dyno, RWHP went from 347 stock to 380 with cam and stock exhaust. I have since changed cams (small SC cam 218/226 560 lift on 115 LSA) and added an ATI SC kit from Andy at A&A. RWHP with completely stock exhaust through the tail pipe tips is now 587 with RWTQ at 499 lb.ft. The exhaust seems to keep up quite well.
If you want more rumble then by all means get exhaust first.
Later ... Larry S.
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TR '04 Z06 - Procharger P1SC by Next Level Performance
607 RWHP 507 RWTQ. Stock exhaust, Comp Cam 218/226 on 115 LSA.
That’s a big cam on a relatively short separation...especially for no other intake work. Did it idle? Where did it power peak? How quickly did it drop off?
If that much cam is streetable, with heads, headers, intake, and doing the work yourself, I'll bet you could be significantly over 500 without a supercharger.
Headers, new cats and X-pipe could be installed without changing the cat-back. I would imagine the stock catback is fine.
David
P.S.
In the old days, all this top of engine stuff we did ourselves. I remember a particular arduous session putting in an H-pipe (predecessor to the X-pipe).
If you want more rumble then by all means get exhaust first.
Later ... Larry S.
The cat back is what will give the rumble. If headers/ heads/ CAI were on that cam you may have been able to save the cake expense on the S/C, and had close to the HP you're getting now.
Ah well everyone has different angles and that's the cool thing about this site! Somebody stated that the stock TI's are good. Well after the headers went on my car I ran the stock catback TI and you could not tell the difference in noise level, at idle anyway.
Either way is going to make a difference you are going to feel when you hit the pedal!!
The Z06 exhaust flows better than most think. The cam will probably give you more. If you do them at the same time, you will save 1 tuning and possibly an hour of labor. Both together should get you close to the magic 400 number, though...
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Tony Johnson - '01 Black Z06 150 NX shot 11.81 @ 119 @ 5800 ft. - '95 Quasar Blue Z28 Ragtop - Forged 355, ATI D-1SC w/14. 632 rwhp, 554 rwtq. 11.65 @ 123 @ 5800 ft. - ColoradoZ06.com
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