R32 Gtr Compression Test Results

[R32SOM]

Hi guys thought I'd post up compression test results from my r32 gtr rb26

6-190psi

5-185psi

4-180psi

3-175psi

2-180psi

1-180psi

so just wanted to know any thoughts? Engine feels fine though I think I might run a thicker oil say 15/50 currently running 10/40 royal purple

[GTRAAH]

How can this be when perfectly stock im sure they should be around 170 on all cylinders?????? Read the GTR manual

[R32SOM]

Thanks yes I have read it but that's why I've posted this any thoughts? I'm running autronic ecu and aftermarket ignition system stock injectors bigger fuel pump, standard turbos

[GTRAAH]

Sorry I dont have a clue good be the way you a performing the test. Im not mechanically minded maybe someone else can shed some light

[blind_elk]

Nothing particularly wrong with those numbers. They are within a reasonable range.

DO NOT run a thicker oil - I have been told it will be like "driving with the handbrake on". Particularly, you do not want to run a 15 - this is the viscosity at startup, you want a thin oil so it gets through the engine quickly.

[R32SOM]

thanks for your replies ,, so ill stay at the same oil range

[boostn0199]

For street 10-40 but for track 15-50

[R32SOM]

Thanks for that, only prob is I need my cams licence so I can participate in events which I'm interested in, any help would be appreciated

[niZmO_Man]

I run 5W-50 in my car. The thicker the oil when cold the less protection it will provide when cold. Only if you notice the engine burning oil when cold should you go to a higher cold viscosity IMO.

Perhaps the engine has been rebuilt? I'd be happy with those figures. I think I read that <140psi is in the trouble range.

[R32SOM]

Thanks for the info