Subaru engine question

[BJ_buggyfab]

that motor was not originally built by me.  not my intercooler and never sold a motor with the stock red intake.  it has my fuel rails is all i can see.   the heads are 46 cc version so with 22.5 ccs dish from a stock sti and 46cc heads it would be hard to get to 8.3  even with the thickest .060" gasket  i can do the math on Monday  but this OEM shortblock generally had heads with 55 cc's.  9cc's is a huge difference

The intake is powercoated orange to match the car its coming out of. 
This is his invoice.

so most likely need race fuel?

 

[John@Outfront]

looks like i at least rebuilt this motor  any way you can measure the head gasket thickness.  there are a few small tabs with rivets in them that protrude out, maybe you might have access to measure it?

what ecu do you have?  if its one i can work with i could check the ignition timing to see if it was set up as a pump gas ignition map--if it wasnt then race gas is the best bet

 

[BJ_buggyfab]

looks like i at least rebuilt this motor  any way you can measure the head gasket thickness.  there are a few small tabs with rivets in them that protrude out, maybe you might have access to measure it?

what ecu do you have?  if its one i can work with i could check the ignition timing to see if it was set up as a pump gas ignition map--if it wasnt then race gas is the best bet

Ok I’ll get that info and get back with you.