Post by
boost_boy »
https://forums.nicoclub.com/boost-boy-u2853.html
Tue Feb 10, 2015 11:38 am
If the compression is indeed that low, then just like float says, your rings are worn which ultimately lowers compression. To Ron240sx: As for snap rings breaking, detonation caused the issues you experienced. I've boosted many CA18 engines through the years and never experienced one of the circlips or snap rings letting go. I did however, detonate the pisons so bad until they smeared all over my cylinder walls like butter. But if it did break, I still would blame it on detonation melting the piston and cause the snap ring to unseat itself. And as for boost, you should not exceed 8psi of boost. Remember the DE is high compression and the DET is low compression, so the mapping is totally different and more aggressive with the DET ecu which means your timing will be in the danger zone for those N/A pistons.