Quote:
Originally Posted by Flat6pac
A recent build was 2.2 T, 2.4/2.7 crank and rods, trimmed pistons to clear counterbalances on the crank, giving about 9.3 cr, E cam grind on the T cams. Can’t be any more budget than that.
Bruce
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That does sound like a budget build but two issue seem evident:
Putting the "E" profile on a "T" cam leaves a base circle that is ridiculously small and challenges the rocker geometry as well as adjuster loading/angle.
What pistons did you use to make 9.3:1. All early factory pistons were optimistic on their advertised compression. 2.2 pistons advertise 8.6:1 but they spec out closer to 8.1:1
Putting a 2.2T piston on a 70.4mm crank will yield something closer to 8.5:1 actual 8.47:1
All of that will work but those compromises won't yield what most drivers want.
One saving grace is that you could probably run "regular" gas.