Just wondering where the compression should be set for a fairly mild 2276 drag motor. these are the specs.
REBUILT unleaded heads
silicone bronze guides
42mm intake valves and 37.5mm exhaust valves
3 angle valve grind on intake and exhaust seats WITH a s.i blend
solid shaft rockers
chromolly push rods
94mm pistons and cylinders
NEW rings
NEW wrist pins and clips
8 brand new push rod tubes
forged chromoly 82mm crankshaft 8 doweled
REBUILT and balanced set of German connecting rods
Resurfaced and balanced flywheel 8 doweled and lightened to 12.5lbs
chromolly gland nut
Hi Performance cam with .390 lift and 298 duration (i have been told the he puts in a 110 cam but am seeing if he'll use a 130 or so instead.)
Brand new hi volume Oil pump
8 Rebuilt lifters
All gaskets and seals brand new through out the longblock
New double lipped Silicone rear main seal
BRAND new main rod and cam bearings
REBUILT case with case savors, alignbored, realigned cam journal and stroker relieved
that 298* .390" lift sounds like fk-8, not a bad cam with the right heads and 1.4 rockers, like mentioned before make sure you know all the relevant specs as well as cam duration @.050, good luck with the build show us some photos of the heads, there's a lot of HP hidden in there.
Yeah, some China bits are fine....... but you do need to check EVERYTHING.
A 2442 build I have on at the moment is using a few top of the line Chinese and this is what we have to fix.
2x rods have the little end bush set with .010" out of true with the crank meanining the pin and piston are .010" crooked in the bore also making the deck ht .010 out pin side to pin side
Out of the two other straight rods one is .003" shorter than the other
To fix this 3 rods get new pin bushes, no biggy
The pistons also look nice, good finish, very light low drag construction, just one has the pin height .005" higher than the rest, probably swarf or something in the machine when it was made... no biggy, just machine .005" off the other three pistons......😵
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
