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Thread: Cam + Fast LSX/90mm
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11-14-2007, 09:10 AM #1
Cam + Fast LSX/90mm
What kind of rwhp could I expect with a mild cam/ FASTlsx intake and 90m TB.
I currently have ARH 1 3/4" LTs,ORY, CAI and Magnamouth exhaust. 338rwhp currently on my 99 T/A M6
Also, anyone with a similar setup have any cam reccomendations?
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11-14-2007, 09:16 AM #2
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blacker than wesleysnipes- 98' trans am
looking at 50rw+
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11-14-2007, 09:33 AM #3
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Pewter- 1999 Trans Am 5.7L
I have pretty much the same setup. Hooker LT's (same size as yours), no cats, no A/C, no air pump to heat up the cats, no EGR, have a custom Y-pipe and magnaflow catback exhaust. I have the 85mm BBK intake with the stock TB, and a compcams cam (222/224)...I recommend you go bigger than that, and I have 386RWHP @ 6200 RPM and 373ft-lbs @4500 RPM. You should have more than me. When you swap out the cam I also recommend getting better pushrods (if you havent already), and LS7 roller lifters, that way you can raise the redline to 6500-7000RPM. I have mine set at 7000RPM, but the valves start to float at 6500RPM (but thats due to a stock valvetrain and heads). I hope this gives you a better idea. I would say that you would be close to 400RWHP with a good tune.
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11-14-2007, 09:34 AM #4
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Pewter- 1999 Trans Am 5.7L
I got all of my parts from ws6store.com. You should check them out. They have everything that you need.
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11-14-2007, 09:57 AM #5
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Red- 2000 Trans Am
With headers, exhasut, a lid i made 337rwhp, you beat me by 1 hp, i have a 228/232 .585/.595 112lsa cam and lsx intake manifold sitting in my closet. Also new springs, pushrods, timing chain, im just waiting on my oil pump and gaskets and i will be puttign all that on including a new cltuch, but im thinking 390-410rwhp with a tune. It doesnt make any sense to put you redline at 7000rpms, if you loose power after 6400 and you valve float at 6500.
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11-14-2007, 10:24 PM #6
probably about 35-40 depending on what "mild" cam
M6, Lid, Ported and Polished Throttle Body (By Me!), LT, Custom Catted Y, Electric Cutout, PHB, LCA13.21@108 with a 2.3 60'
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11-15-2007, 07:24 AM #7
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Red- 2000 Trans Am
ah no, wit ha 228/232 cam most poeple gain 40-50rwhp from the cam alone, with the lsx intake manifold thats good for another 15rwhp. With good bolt ons and a tune you could see a 50-70rwhp gain, depending on cam.
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11-17-2007, 09:14 PM #8
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11-20-2007, 01:03 PM #9
can anyone reccomend a cam?
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11-20-2007, 02:33 PM #10
really your going to have to make up your own mind for what you want for a end result. eventually going with a TSP TV.3 and a set of heads
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11-20-2007, 05:16 PM #11
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NBM- 98 formula
While your at it get the intake ported
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11-22-2007, 08:35 AM #12
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Pewter- 1999 Trans Am 5.7L
You should do that when you get the set of heads that you want, that way you can portmatch them.
As far as a cam goes, I went with comp, and havent had any problems. Apparently they have a program out now where you can see the results of putting a cam in it. I have only heard about it. But the tech's there can easily help you with a cam that you would want. Just email them, and they will get back to you within a week.
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11-22-2007, 08:39 AM #13
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Pewter- 1999 Trans Am 5.7L
When I get the set of heads that I want, then the valves wont float anymore. I set it there without knowing that they would float. I didnt really want to go back and have it changed again.
Here's a pic of my dyno sheet...like I said before its a pretty mild compcams 222/224 cam.
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