Nutcase here,:wink:
I also though of the “more power” issue with my nsx.
$15,000 from SOS for a 3.8litre upgrade? Nice, but way out of my price league considering I paid €25,000 for a WHOLE nsx including motor.
Sooooo, more power needed, maybe 100hp? $9000 for a supercharger? Nope, too much again.
So I thought of putting a cheap 4 cylinder alloy 4 valve engine that produces about 125hp (cost about $100) IN the engine bay, on top of the engine. Hell, people put a supercharger up there and far from getting laughed at, everybody goes ooooooh.
Then i looked under my car and see there is a colossal amount of wasted space under the trunk. The exhaust system (stock and aftermarket) waste a truly obscene amount of space under there. Repackage the exhaust system to run only along the sides, and put the auxiliary motor under there.
A flat 4 engine would be good. Air cooled even better but then, gives less power.
I would connect the auxiliary engine to the V6 via a specially made front pulley via motorcycle chain. but packaging problems would dictate a drive shaft and 90 degree box. Hey, maybe I could use the the stock clutch that come with the 4 cyl. engine.
I think the NSX crank could take 125hp extra, anyway the aux motor would only engage a high rpm so the stresses would have less effect.
Let the aux engine idle most of the time, but when power is needed, the clutch in the special pulley closes. Say at full throttle. Vroem, 125 extra horse power, which requires NO change to the existing NSX engine! No remapping, no rebuilding with high or low compression pistons. Only a (clutch) pulley or drive shaft. And the whole thing can be taken off when/if the car is sold.
So now I’m looking for a small, light flat engine. Airplanes have that, but they don’t produce much power.
Also for those of you that want even MORE power, just turbo the aux motor. Cheap and if it blows up, get another one from the junkyard.
What about a bank of weed wacker motors? Naaw.
Yours truly,
Nutcase.:biggrin:
