Engine came off dyno 580 hp 540 tq. No issues. In car now.... idled awhile checking things and found oily plugs. No big deal, decide to go for the first blast and see smoke in my rearview. Got pissed and decided to "clear it out". Nailed it smacked 2nd and the whole friggin car is shaking. Limped home and found number 6 and 8 plugs totally fouled out, dead....
To make a long story shorter we found the headbolt tubes, done at porting had started leaking. So that's all fixed up now, went pushrods oiling only, blah blah blah.
Fired it today check for leaks.....go through a heat cycle and shutdown. Adjust valves hot button it up and go for a ride.
At 4000 rpm, the shifter was shaking so bad I thought my hand was gonna fall off. Cruising home at 2300 fairly smooth. Up the R's and she starts shaking. Neutral, clutch in clutch out, no diff.
They're are a couple variables....new aluminum flywheel NOT used on the dyno. Supposed to be internal balance type. Centerforce 900400. And a brand new McLeod p plate and clutch.
AND a 833 I just rebuilt over winter. I've done several of these and can't imagine it's something in there.
Oh yeah, plugs look great! Jesus I can't get a break.
So I wonder that first day I decided to try and clean it out, if I might have hydraulic'd a rod. Although heads were off for pushrods oil conversion and all pistons topped out the same, visually. I know cause I cleaned every grimy one. I did not measure though.
Hopes are running towards something with that flywheel....but who knows. Seems to me it would take a hell of a lot of oil in there to bend a rod. I have 67cc chambers so at least more than 67cc's.
