Anyone know where I can get some 65pph injectors for a reasonable price? I have 55pph now and they work great (functionally) but are about 17 percent too lean (BLM values around 150 all the time) for my application. I would also consider a swap but these are too small for most of us rodders...

Oh, "paint" colors, P/N's and OEM applications would be helpful if I need to go to scrap yard(s).

 

Buy some injectors from a Cross-Fire setup. They are 66#/hr units

Marck

 

if your blm counts are too lean you need to tune your car, the 55 lb/hr are plenty for just about any motor part throttle. If its lean across the board just increase your fuel pressure just as a guess, those 55lbers will probably flow 65 at around 17 psi ( there are equations on the net)

 

btw the 65 lb injectors came in 9c1 caprices, the colors are yellow/brown

 

Tried that and it works to an extent but, in general, flow through a restriction is not proportional to pressure. (flow through unresticted area, like a hose, is more proportional) ie. cannot flow enough at 5500rpm for me...

Raising the pressure is more of a band-aid to me and overworks the heck out of the fuel pump = premature wear. Plus, the 65's will add just about the right pump shot, too.

FYI, Pablo, I will be buying the burning hardware soon and am presently playing with Tunercat.com Prom Tuner. NICE! Snap-on scantool, too. I just believe that when the 65's bring my BLM's closer to 128, it will mean less change in my VE values (in the fuel tables) to get where I need to be.

 

Fn = New Injector Flow Rate, ml/min
Fo = Original Injector FLow Rate, ml/min
Pn = New Baseline Fuel System (rail) Pressure, psi
Po = Original Baseline Fuel System (rail) Pressure, psi

this formula is widely used to calculate flow rate relative to pressure
what sort of setup do you have that likes so much fuel? When i first started tuning I made the mistake of using some of the formulas on the net to calculate HP from the amount of fuel delivered at a .5 brake specific fuel consumption
unfortunately, this doesnt transfer to real life too well as i have found, i was way way rich. Im back to the stock tbi injectors but like i said, 17 psi runs pretty good now and no sign of lean.. according to those formulas this much fuel is only capable of around 215 hp. Im not sure how accurate that is, could be that it just feels like more, but shane buss for example put out far more horsepower on the dyno than his injectors were supposedly capable of supporting. SO im not so sure how accurately that transfers to real life

 

Pablo, posted my specs on the PROM board under Sherry's HELP posting...