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Hmmm.. I dont think it's a fantastic result.

I got my RB25DET done when I bought my car (57,000km's) and I got 160 across five cylinders and 150 on the other.

Yeah I heard that it's consistency that is a good thing, but the higher the better I think?

The guy who tested it (Unique Auto Sport in Castle Hill) said that they have tested heaps of RB25's and mine was up there as one of the highest they'd seen. I have heard a lot of people testing down around 140, but never as low as 125.

I'm not sure what the implications of this are though. Sorry I cant be of much help either...

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well, i dont know what to think right now, maybe i didnt do the comp test correctly...but its even across all cylinders to the lb, so i think its all good...the engine has been very well looked after, i just did it out of curiosity...try it again tomorrow, getting a rollcage fitted so maybe they'll point me in the right direction as what it is...

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125 isn't perfect but still in the reasonable limits. It's good when all the cylinder have lost compression equally, but losing compression doesn't mean a real lot as it's turbo, the turbo's will always have less psi than a N/A engine. I don't own an RB25 though but this compression is good enough (not great) for a turbo engine

Cheers

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theres no smoke or oil used, the turbo seals are blown out but driving off boost it doesnt smoke at all, power is still fantastic...i have a feeling the low readings were because my battery is ratshit...like i mean..if you start it and stall the car, be prepared to push it..that and my throttle body was closed...

Looking at my spark plugs, theyre almost brand new still, no buildup of anything at all, engine overall seems to be running brilliantly. Must have been the way i did it...

BTW, sorry nismoid...i searched but i didnt get a straight answer to what i was looking for so i posted a new thread...my bad...

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I wouldn't have thought this is much for an rb25, but I have heard that an even spread across all the cylinders is more important.

My rb25det from a 97' s2 r33 has between 153-160 across all cylinders, being the lowest and highest from all readings.

125 sounds a little low, but if the others say its ok if it aint using oil and water etc, then i could be wrong. Possible try testing another one if you can, just for reference.

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