Quote:
MoTec won't fit.
Doesn't sound like the Miata. SM Miata engines put out more HP than IT MR2's. The TVIS system also hurts the engine's potenial. There have been some MR2's built that removed this system that puts a restriction on the intake - but that is against IT rules.
RWD adder/FWD subtracter = semantics. Weight dist isn't that diff from BMW/Miata. I agree it is an advantage, but I'm not convinced it is worth 100lbs. Maybe if I was allowed to use a Miata or CRX engine...
Jake
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That's two motors with dual length intake's that don't make the predicted hp gain. Is there a third? Maybe a trend can be found for hp potential, or lack there of. After our last discussion on this topic I tried to find a correlation based on swept volume and stock hp, but wasn't able to account for the differences in intake, heads, and cams and there effects on total potential of making hp in race trim. It seemed to work for the Miata, NX-2000, CRX, and even the 240sx. The fact is that volumetic filling is always limited by something. If all the parts are already matched by the engineers at the factory then changing the exhaust manifold for less backpressure will result in minimal gains, as the items you can't touch are still limiting any potential. However; if the motor is mostly prettey good, except the exhaust manifold is a cheap sand cast-iron mass produced unit with huge casting flanges still in it, there'll be a huge gain in swapping it out.