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Discussion Starter #1
Hi All,

Do you know what are the specs for the 5.0 v8 Supercharged Compression? I tested compression on my car with all spark plugs removed and with closed throttle. Results are really low:

2 - 105
4 - 95
6 - 100
8 - 100


1 - 115
3 - 120
5 - 120
7 - 125

I performed leak test and there is no leaks at all, so the only idea that I have is that the low compression is because of the Supercharger can't suck enough air when it cranking on low rpm(~200-250). There is no smoke from exhaust and car pulls\accelerate good(compared with identical range rover), but the reason why I decided to measure compression is misfires in bank2(2,4,6,8). I performed wet compression test with oil and readings are going up approximately 10-15% in both banks.
 
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