Z06PSI

iTrader: (33)

How much can I expect out of 60lb injectors with a PT-88 on a 347?

What is the largest injector a stock PCm can handle..?????

blackz93

iTrader: (2)

They'll just have to be high impedance injectors. Are they mototron's?

quicksilverado

iTrader: (8)

Maybe Cablebandit will chime in. He's using 60s on his 347. 700rwhp, but he is also using methanol.

NA$TY-TA

iTrader: (21)

no RCengineering makes 75# injectors also..... but there BIG $$$ about $7-800
Kyle

gametech

iTrader: (1)

What fuel pressure can you run? My understanding is that the 60# mototrons can flow over 80#'s at 85psi without locking up. Unfortunately, if you figure 85# fuel pressure referenced to boost, your fuel pump would have to be able to push around 100psi or more.

Z06PSI

iTrader: (33)

I have a Aeromotive a1000-10 for right now. one 10an feed line and then a y to8 an to the billet rails with the stock being a return line. I have the regulator as well.

DAPSUPRSLO

iTrader: (14)

Rick over at HPE indicated to me that my Mototron 60s would be just fine with the PTE76GTS and my 408. The 88 is bigger but not much. I think it's all in the fuel pressure you run.

NoGo

iTrader: (2)

Mototrons cranked all the way up (85 psi fuel pressure) should get you to just over 800 RWHP......but that is completely maxed out. Additionally, you are going to have to really oversize your fuel pump to deliver at that pressure.

The biggest injector without molesting the injector circuit of the stock PCM/driver is around 70 lb/hr. You can get away with RC Engineerings 75 lb injector, but it requires some trickery with the programming. I run 75 lb injectors on the stock PCM/driver.

NA$TY-TA

iTrader: (21)

Kevin who did you get them from??? the injectors i mean..... and if ya dont mind how much??
Kyle

NoGo

iTrader: (2)

RC Engineering provides them.

www.rceng.com

Z06PSI

iTrader: (33)

and lbs translates to what cc....?????

NoGo

iTrader: (2)

1 lb/hr = 10.5 cc/min (for normal pump gas)

750 cc/min = 71.42 lb/hr

2000 Tran Zam

iTrader: (2)

ya, im gonna be on the stock computer and opted for the RC engineering 75#ers. i got a smoking deal, paid only 500 for them from a guy that wasnt gonna need them(brand new)

only thing i heard bad about high impedance inj's is something about the duty cycle being f'ed up or something, i cant remember what it was that was negative i heard about them...

NA$TY-TA

iTrader: (21)

From my calculations using there 650cc or 60# injectors and a 65psi fuel pressure the injectors should be able to do 100.86HP per injector at 80% duty cycle.......
And from most calculations thats not taking in drivetrain loss ..... so are we talking around 700rwhp......
I know Mightey Mouse did 800rwhp with his Motrons 60#ers, but he was also using 80 psi of fuel pressure and Meth.
Kyle

JZ 97 SS 1500

iTrader: (2)

60's can handle up to 100psi sustained pressure. Its not recommended but its possible. 800rwhp can be done with them.

Jose

2000 Tran Zam

iTrader: (2)

didnt orange hugger ss or someone do 844 rwhp with meth on 60#ers?

qqwqeqwrqwqtq

Yes, we made 844rwhp with the mototron 60's at 70psi base pressure and 100% duty cycle. (this was with dual walbro pumps).

It's definitely a less than ideal situation, but it is possible.

Warbird

I'd be very interested to know what the max sustainable power would be with these injectors. My new fuel system has dual Walboro 340's intank with a C5 fuel rail and return from the rail. I have an AFPR mounted on the fuel rail and it is my belief (don't now for sure) that my pump can run as high as 85 psi. I was hoping to see 750-800 on pump gas now I'm wondering if it's doable with the stock PCM and my set up