Quote:
Originally Posted by supra2nv
...and the engine internal mod can only add, is my guess...but time will tell  are there comps? my gut tells me this car will be so fun to drive, it is already
PS: I inquired about titanium valves this morning... |
Internals should only be necessary in places where high RPMs truly stress components. It's unknown what the stock components can handle but it's safe to assume the valvetrain is the limiting point. Cams, valve springs, and lightweight retainers might be all that are needed. Rods and pistons could be overkill unless you're going significantly lighter (which I assume is your reasoning).
My only concern is that while it's certainly possible to build a 9000 RPM powerplant, there might not be any benefit in power. It might just make more noise. On a road course it could save from having to shift as often if you're able to carry speed for another 1000 RPM before the next corner. But, I don't see this turning into a track car with how much you've invested into it.
Ti valves sound like a bad idea unless they're VERY well made and of the right alloy. My question was about Ti retainers, and good ones at that. These typically need to be light weight to prevent valve float at higher RPMs.
It might be a while but I'd love to see the before and after dynos on your project to compare the lightweight parts. I'm very curious to see what happens to the torque curve after 7000.
Good luck!
