I've just done a compression test on an engine rebuilt 3 years & 8,000m ago for a Greddy kit. The engine was described as rebuilt suitable for a turbo application by a respected builder; the receipt and warranty give no details on porting, seals etc and the builder isn't contactable for a week or 2.
The compression results were at a low rpm (215 ish) as the battery struggled, and normalised to 250 have around 5.3 on the front rotor and 6.4 in the rear rotor, all 3 chambers reasonably consistent across each rotor. I'll put the detailed figures when I have them to hand.
The rear rotor is what I'd expected for a ported engine but the front 5.3 concerns me.
Anyone got any thoughts?
The compression results were at a low rpm (215 ish) as the battery struggled, and normalised to 250 have around 5.3 on the front rotor and 6.4 in the rear rotor, all 3 chambers reasonably consistent across each rotor. I'll put the detailed figures when I have them to hand.
The rear rotor is what I'd expected for a ported engine but the front 5.3 concerns me.
Anyone got any thoughts?
Compression Results 'Suitable for Turbo' Engine
