Quote:
Originally Posted by UNISA JECS
Those people are on borrowed time to, there's 43psi acting upon those o-rings, if they happen to squeeze threw the bore on the fuel rail after a nice WOT pull when teh cylinder is all nice and hot, that cant be good.
The cylinder will hydrolock almost instantly, thats a major leak.
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I'm actually going to turn up the PSI to about 45 PSI to start with tuning, since the injector pulse width and duty cycle is much lower on a Naturally aspirated engine with lower HP goals, then a turbo charged sr. I believe a standard sr20dets base fuel pressure is around 46PSI?
I need a nice and clean spray pattern so uping the injector size I will need to up the fuel pressure. I've never worked with E85 so that 45 PSI @ fuel rail may not even work with E85, I am wondering if I should up the fuel pressure to maybe 48PSI.
I used the RC engineering calculator and it seems that I would need about 48PSI @ 75% of injector duty cycle to make relatively 220 HP at the crank , or roughly 190WHP. This would mean that brake specific fuel consumption is at 50%. This would be a total of 34.91 LB.s/HR @ 367cc.
I'm just going to order brand new q45 94+ injectors, any one want these phase 1 Q45 injectors for free?