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Old 02-12-2007, 11:30 PM
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obzidian obzidian is offline
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Default Re: What do you think of this engine performance upgrade?

TAZ:

do you have a dynosheet of your H2? I really dont want to start a war or anythn, and its shown that you do know your stuff, but i believe that 550hp is at the crank for at 6/8lbs, its would be hard stretched to produce that much power, with our AWD system, and a auto trans at that. I think that at the wheels, you would be close to 400rwhp than 500rwhp. These trucks have a really high drivetrain frictional loss percentage. I cannot confirm it but i beleive it is higher than 20%, much higher.

Also, i believe you might want to actually lower the cr to go higher boost level, these motors dont need like it for pump gas, that is, if your set on C16, than you can go a bit higher though your tune has to be DEAD ONE to avoid any boom-boom!! For pump, you should be fine to make as much power as you want. 1000rwhp is alot, especially through our drivetrain, and i also dont think that 112 blower is gonna cut it. AGAIN, PLEASE DONT TAKE THIS AS A PUNCH IN THE GUT, its just some observations i have made with what i've gathered with my own car(s).

HPtuners is a great tool and anyone looking at doing a handheld should reconsider and get a laptop pcm tuning/scanning tool. Like you mentioned, with a wideband, well, you can tune just about anything, add that 3bas SD tune capability, and your pretty much set for whatever you can through at these week trans!!

I would like to see more of an emphasize towards the performance aspect of an H2.. maybe we can all put our heads together and get one in the 10's hahaha now that would the day, wouldn't it?!
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