Quote:
Originally posted by Tominos
the thing is, a supercharger gives a honda motor what all honda motors don't have, low end torque. with much more low end torque, it will be a lot more fun to drive. although with a turbo you get that nice bov sound, and top end you can gain much more power than a supercharger can at the top end. but for a stock engine i'd recommend a supercharger since you can't really take advantage of the turbos strong points unless you boost past 6 psi, which would be unsafe on stock internals. its really up to you, both has strong and weak points.
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I don't think you quite grasp honda's "torque to HP" availability, lets compare an s2k to a E36M3 Beemer regarding torque. The S2000 motor produces 240 HP at it's peak of 8300 RPM. The E36 M3 motor produces an identical 240 HP at it's peak of 6000 RPM. However, the BMW motor produces 236 lb-ft of torque at a relatively low 3800 RPM, while the S2000 motor produces a mere 150 lb-ft of torque at 7500 RPM. Yet, if one compares 1/4 mile times and 0-60 MPH times, they are nearly identical. How can they do this given the vast difference in torque output of each motor right.? A car accelerates hardest (fastest) at it's torque peak. In the case of the M3, this happens at a low 3800 RPM. On the Honda, peak acceleration doesn't occur until 7500 RPM, and peak HP is achieved at 8300 RPM. Where the BMW is forced to shift at 6000 RPM (it's HP peak), the Honda is still pulling towards it's torque peak, and eventually it's HP peak. So while the Honda motor doesn't pull harder than the BMW, it's high torque peak allows it to pull longer. Ok torque and horsepower. Torque can be multiplied through gearing, while horsepower remains unchanged. The Honda can be geared to produce sufficient torque in the (low RPM range) to allow it to accelerate strongly right up until it hits it's own torque peak. This also allows the Honda to accelerate strongly up to it's HP peak at 8300 RPM prior to shifting. As each car shifts gears, you are effectively reducing the torque available to the rear wheels in exchange for speed. This is what allows a car with significantly less torque, but equal HP, to accelerate at a nearly equivalent rate. ok bottom line honda's don't lack torque, they thrive in it. Even with a smaller turbo you'd be getting sufficent boost, in order to rival the strain of a SC on the small motor of the honda, basically i'm what i'm getting to is maybe its time for a motor swap eh? But otherwise i'd go turbo.