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| Rotary Tech - General Rotary Engine related tech section.. Tech section for general Rotary Engine... This includes, building 12As, 13Bs, 20Bs, Renesis, etc... |
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| Rotary Tech - General Rotary Engine related tech section.. Tech section for general Rotary Engine... This includes, building 12As, 13Bs, 20Bs, Renesis, etc... |
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09-23-2010, 11:02 PM
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#27 |
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The quest for more torque
Join Date: Sep 2008
Location: Sheboygan, Wisconsin
Posts: 855
Rep Power: 18  |
 This is a comparison of a stock-port 6-port and a very mildly streetported 4-port. I only compared the torque curve as it is a good measure of charging efficiency. Please note that while the 6-port is considerably lower, it is a much flatter torque curve than the 4-port. You can see that even a tiny bit of porting will hurt the low end torque. ** The 4-port is ignition energy limited past 7000 rpm, otherwise the curve would probably be flat to about 8500
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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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