What compression with g295 and flat pistons
Turbo Mini Forums

Hi,
What compression are you getting with this setup ?
I have 10bars all over (147 psi ?) with MD266.

I'm still debugging my rough idle. Ignition is timed and I can set it between 0 and 30 degrees, tried old and new (bigger) injectors, old and brand new spark plugs, 0.35mm clearance, any AFR, what else ?
I've got overbored exhaust and Rimflow intake valves.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

The measures presure in each pot with a compression tester is not really much of a guide to CR, especially with anything beyond a standard cam.

Do you know at what angle the cam is timed in at?

Did you check every 'angle' on the Cam (I have found quite a few of late not to be as advertised or consistant between cylinders)?

Is it a genuine Kent MD266?

What rockers are you running?

I actually measured the profile of this Kent MD266, every 5 crank degrees. I timed it according to the spec (don't remember but it matched perfectly the 0 offset pulley reference, SW adjustable pulley), checked the center by comparing the cam lift around the center. The engine was on the bench, all that was easy. The chain has 10000km so timing should not move any longer.
Std forget rockers, same as on the old std head which was running perfectly with a SW5.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

kent say 106 deg

Hows the rocker gaps?

Its not some sort of air leak is it?

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!