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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

View Poll Results: Keep it legal and original or go for broke?
Replace blown rotor & housing 0 0%
Option #1 plus upgrade NA for more HP 13 52.00%
Buy rebuilt NA short block 1 4.00%
Go Turbo 11 44.00%
Voters: 25. You may not vote on this poll

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Old 09-16-2009, 10:26 PM   #1
NoDOHC
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Seriously, a budget rebuild is going to cost you somewhere around $400.00 if you do all the work yourself and get a decent rotor and a decent rotor housing off eBay. You can put inserts in the 6 PI sleeves, smooth the ports up, clean the lower and upper intake manifold up (as high as you can reach) and get 170-180 WHp out of that engine (I don't know if the stock ECU can make that, but I have heard of a 176 WHP S4 NA with nothing but exhaust and a FPR).

I would rebuild what you have. Turbo engines and drivetrain cost a lot (I think I have almost $2000 in mine if I include the clutch, transmission, engine, differential, axles shafts, driveshaft and turbo).
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Old 09-23-2009, 04:39 AM   #2
Flooder
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Quote:
Originally Posted by NoDOHC View Post
but I have heard of a 176 WHP S4 NA with nothing but exhaust and a FPR).
I'm going to pull a Ted and say "That's BS, dyno sheet or gtfo". Paraphrasing of course .
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