I Need help????? I PUT MY DYNO SHEET ON HERE NOW
#1
Staging Lane
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I Need help????? I PUT MY DYNO SHEET ON HERE NOW
i need help i wanna see if anyone knows if my pistons are the reason im dynoing so low i have a lq9 6.0l it has forged diamond racing pistons 8cc dish 4.0600 bore with nitrous rings stock crank ls6 ported oil pump forged rods of course double roller timimg chain and the cam is a ms4 cam heads are just mildly ported only 853 heads i also have a 90/90 combo 3800nitrous stall tci 3:73s long tube hooker headers 38# injectors and im only dynoing at 360 BUT @7500RPM MAYBE ITS THE TUNE???to the wheels
i was thinking its either the pistons or the heads????
i know dish piston are low compression pistons but it helps i got a sheet with pistons saying my compression ratio should be around 10.05 is that too low?????
let me know if u know something THANKS!
i was thinking its either the pistons or the heads????
i know dish piston are low compression pistons but it helps i got a sheet with pistons saying my compression ratio should be around 10.05 is that too low?????
let me know if u know something THANKS!
Last edited by killerwhale; 08-04-2010 at 03:30 PM. Reason: ADD PIC
#6
Staging Lane
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engine sounds like its gonna do some serious damage really sounds great just didnt like my dyno numbers but of course it has a weird tune well i think it does
#7
Staging Lane
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really appreciate the help but yea i have my dyno sheets ill post it later today and it was tuned with hp tuners on dyno but them dyno numbers on my sheet show it dynod that at 7500 rpm i think thats too high
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#10
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My forged motor did the same thing. I was actually running nitrous rings with -8cc diamonds and a TCI 3800 nitrous stall that flashed about 3000. It was loose as a goose. Were you filling the shop with smoke on the dyno? My blow-by was nasty in that aspect. Always burned oil under WOT conditions.