Rb20de Compression

[Rancher]

Hi again!

After skimming the Turbo performance part of the page I came across a Compression problem someone was having. Not too long ago I checked mine (After I over heated the bastard) and the compression was about 120 130 in all 6 cylinders. Normal.

But when I was reading the that page his was also 120 130 in all 6 cylinders (Forgies, bigger turo and a 2ml head gasket). This got me thinking "Wtf?" My question is; What is the standard compression in an RB20DE? or have I somehow (When I rebuilt the top end and new head gasket) jumped down to turbo compression? Its a standard Nissan Head gasket (From Nissan).

If I have, would this cause problems with my car? I didn't think it would but its really got me thinking.

[blackprincegts]

not 100% sure dude but i think there pretty low numbers..If i remember correctly i think my rb20de was like between 157 and 165 on all 6.

i doubt that changing your head gasket to another stock nissan 1 would change your compression that much. i remember working it out that adding 0.5mm to your head gasket only lower it by like 0.3 ova point or sumtn...

[ignuz]

I heard there can be large differences in numbers quite often if it's a wet or a dry test..