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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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The quest for more torque
Join Date: Sep 2008
Location: Sheboygan, Wisconsin
Posts: 855
Rep Power: 17 ![]() |
Quote:
Believe it or not, the overlap generated by this modification would be very minimal. I will attempt to illustrate: ![]() This is a stock 4-port rear iron with the RX8 housing on it and a rotor installed upside-down (just to make it easier on the housing, as there are no planetaries in the housing right now). You can see that the exhaust port is already nearly shielded (the dish is almost past the cusp). The engine has already passed BDC, but the volume is barely changing at this point. This is the big reversion enemy, but only occurs for about 10 degrees of eccentric shaft rotation. ![]() This image shows the intake port open. The dish has completely passed the cusp on the housing, allowing the rotor to housing clearance to effectively block the exhaust port from communicating with the intake port. ![]() At this point in the process, the exhaust port is closed. I agree that I may have reversion issues, but I am hopeful that they will be minimal. I have no intention of modifying the intake port timing at all. (I will use my other housings with the very mild street port).
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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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