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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 |
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0 | 0% |
| Option #1 plus upgrade NA for more HP |
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13 | 52.00% |
| Buy rebuilt NA short block |
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1 | 4.00% |
| Go Turbo |
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11 | 44.00% |
| Voters: 25. You may not vote on this poll | |||
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#12 |
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The quest for more torque
Join Date: Sep 2008
Location: Sheboygan, Wisconsin
Posts: 855
Rep Power: 18 ![]() |
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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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic) |
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