Hi all, hope I can pick some brains!
I have on the bench a 3.0SC motor, RSR mahle 95mm high comp pistons, SC heads, ported, compression ratio works out around 10.1-1, DC80 cams, high butterlfy MFI. Single plug, tuned length headers and a rear box with no internals.
Engine makes 200 hp on a dyno with a big flat spot at 5000rpm, pulling my hair out with it, could it be an exhaust issue? Or inlet? Or just a bad missmatch?
Initially thought low compression with a 90cc SC head but ratio is up. Pump has been re-done.
I'm tempted to fit a set of carbs and standard SSI set up to see if I get any better results? !
Cheers in advance.