Quote:
Originally Posted by Cliff R
The engine build......should be around 8.8 or so compression.....cam is a custom ground HR, 281/287, 230/236 @ .050 on a 112LSA. Lift with the rockers we're running will be close to .580/590"......Cliff
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Roger that 2-slug scuff....my Forged ROSS Slugs came with a super-tight Recommended cold clearance fit/check: Block Half-filled with the good cement & CYL walls still good after a couple re-assemblies. No Air filter & no blowby. But that will change soon.
Not far off from my Signature combo. Looks like my 0.050 DURATION is TOO HIGH:
I gots 4" HG at idle in gear, 6" HG in Neutral. Gots 16" in level highway Cruise, that goes to 20" when I let off the pedal. BUTT the mileage is atrocious across Idle thru high speed cruise. May not be the 3.54:1 gear alone. Therefore my 12.2 ET Signature combo is horrible for MPG.
Hope your SD-455 Combo achieves excellent MPG. Do you have an ET/MPH & Cruise MPG prediction?