Idea on what to expect for RWHP for my LS1 RX7
08-17-2007, 04:25 PM
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Idea on what to expect for RWHP for my LS1 RX7 Well as some of you already know im in the process of building an LS1 equipped RX7. Ive been helping my friend build his 01 SS camaro for the past summer. Hes just decided he wants to go with a 402 and hes going to give(yes, for free) me his 25,000mile short block complete. What I was wondering is the block already has a 236/236 590/590 112 cam in it. I plan on buying a set of stock unported 243 heads to go along with the stock LS6 intake manifold that he already gave me off the motor...What kinda power should I expect to make through long tubed headers and a true dual exhaust?..I dont plan on spinning the motor past 6500rpms. Also would this setup safely handle a 100 shot? (not sure ill need much more in a 2600lbs car)
08-17-2007, 05:11 PM
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Originally Posted by Ceissus
some have made over 400 with "cam only" using a smaller cam than that.
my guess is 415+?
my guess is 415+?
With LS6 heads?..also would the 100 shot be safe? And is there anything I should add to the stock internals before putting it in the car?
Last edited by Snyper; 08-17-2007 at 06:28 PM.
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08-19-2007, 07:58 PM
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im pretty sure you'll be fine with even a 150 shot, just make sure you get all the safety switches and a good tune. That thing is gonna fly. There's a body shop around my house called Alex's, and his sons are f-body fanatics. They have three LS1 powered RX7's and all run 10's or better. Alex told me that one wieghs only 1700-1800 lbs. Couldn't imagine being behind the wheel of one, but i would love to.
08-19-2007, 09:40 PM
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Originally Posted by Nimitz87
make sure to upgrade the valve springs and pushrods at the minimum.
Chad
Chad
08-19-2007, 10:23 PM
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Originally Posted by Snyper
I planned on using the patriot .650 lift springs and chromoly pushrods. I dont plan on spinning it past 6500. I would use more than a 100 shot but Im not sure im gonna need it. My goal is 10.99 on a stock motor. If I reach that ill rebuild the bottom end port the 243's and hit it with a 200 shot.
Chad
08-27-2007, 09:44 AM
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That's a pretty big cam for an LS1, no? That + stock 243's should net only ~400 RWHP? Kinda disappointing...
(I've been considering the same combo, but with a smaller cam)
(I've been considering the same combo, but with a smaller cam)
09-05-2007, 12:14 AM
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Originally Posted by N21923
Remember, your FD has IRS, that'll soak up a few horses. My guess 385hp.
it shouldnt count for that much? And im not sure if ill hit 400rwhp....maybe id be better off with a set of dart 205s?