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Old 09-13-2008   #8 (permalink)
ang534
Water Injection Newb
 
Join Date: Aug 2008
Posts: 4
Default Re: Correct Setup For Supercharged LS2?

Thank you that helps a ton! So just to some up, I am only slightly low on amount being injected as I have the 1 gph (actually flowwing about 1.2 @ 150 psi) pre blower and the 10 gph (actually flowing 12 gph) so total is about 13.2 @ 150 psi. When I go to calculator I put in 6.0 liter, 14#'s boost, and 6500 max RPM. It tells me I should be flowing 17 gph, but 14 is probably all I need. The bottom end is stock, car is very low mileage (just turned 10K) don't want to blow it up for miscalculating methanol injection. Car has only 44lb. injectors (rely on methanol injection to make up the difference) when dyno - tuned all was well with afr 11.7 ish (this was with 10gph nozzle only) however car only made 12 #'s boost (made 623 rwhp @ 6100 on 75 degree day). Making more since switching to mondo valve (must seal better?) but added the preblower 1gph nozzle. Methanol injection some amzing stuff. Basically allows me to run 14#'s boost with 10.9 compression and smallish injectors on a cast piston motor using 93 oct. gas! Can't really afford to re-dyno right now so want to do a best guess set-up for most hp with as little risk as possible. I know that adding over 300 rwhp to a stock block (I would guess car making 640 rwhp now - only made about 335 rwhp stock) is on the edge to say the least, but don't want to find that a simple miscalculation (methanol) by me cost the shortblock. So to run more methanol would you add another nozzle ( bring total up to 3) or drill the one I have out just a touch? Or just leave it as is, having what feels like full power up to an 85 degree day is something I can live with. Just one more question how much do you think that 1 gph nozzle is lowering my IAT? Well thanks for all your help!
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