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Old 11-15-2017, 07:27 AM   #11
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E30: Trixie - '90 325i
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Celsdogg will become famous soon enoughCelsdogg will become famous soon enough

Originally Posted by 325ftmfw View Post
if you're only boosting it lightly on a street car I wouldn't worry too much.
put some ARP studs in if you can. Years ago we used to boost the
20v silvertops to 10psi and they run a 10.5 comp on a standard gasket and bolts.

at least being cat free it can shed the heat a bit easier. Not like it will be on full boost constantly.


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Old Yesterday, 10:31 PM   #12
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jtdogblue is a jewel in the roughjtdogblue is a jewel in the roughjtdogblue is a jewel in the rough

Just an idea. Since you already know exactly what your swept volume is, bottom out a piston and fill the cylinder with that amount of liquid (I was thinking maybe seafoam), have a clear tube that shoves into the spark plug threads and seals, make sure both valves are closed and measure how much fluid it takes to fill it up to the threads. Swept volume:combustion chamber volume
(347rwhp 2.8l N/A M20)
Originally Posted by morerevsm3 View Post
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