Racetronix

iTrader: (2)

If the picture is correct these are the Bosch/Delphi injectors used in the Buick V6 3800SC motor.

Mike K.

do you know at what psi these were rated for 36# at. They may be worth getting if they are honestly withen 1 %, I still dont trust SLP though.

Racetronix

iTrader: (2)

43.5PSI and they quote +/- 1% which is a 2% spread.

Mike K.

Thanks this has been an informative thread especially considering the fact that I was running lean on 2 cylinders. Flow matched it is.

xQuickSilverx1

whats the ammount of HP a 30 # injector would support? I read someplace on about nitrous a 36 # injector would be more the injector to use, say to support 5-700hp, or does a 30 # injector do about the same?

samz28

Why dont you just spray wet? 700hp? Thats direct port territory man. then you get the fun of balancing fuel pills They aren't all created equal like injectors lol.

xQuickSilverx1

naw i think you mis-understood what i said, what i ment was total output power after spraying being someplace between 500-700rwhp, not spraying that much...

critter

iTrader: (9)

This is sort of closure to this thread. As mentioned above, TSP offers 30# SVO injectors both flow matched and not for $300 and $220 respectively. I went for the flow matched as I do intend to tune near the edge. They arrived in a Ford Racing box with a card that reads:

Ford Racing
Part # M9593-B302F
Group # 199
Flow Rate
31.12
31.13
31.13
31.14
31.14
31.15
31.16
31.16

That is 31.14 +/- 0.02, which is pretty damn good, less than +/- 0.1% difference.

jerflash

the 30# ford injector under are fuel presure is 36# right?

critter

iTrader: (9)

In round numbers, yes.

Racetronix

iTrader: (2)

30's @ 4 bar = apx. 34.6lbs/hr
32's @ 4 bar = apx. 37lbs/hr

SSpeedracer

iTrader: (8)

Racetronix-
Thanks for bringing this back from the dead. Very interesting. I see a Racetronix fuel pump and 8 matched injectors in my future.

THRLSKR

iTrader: (1)

After scrolling through a very informative thread I am in question about my new set-up and what INJECTOR to use (2003 Z06, FAST 90, Electric WP, Full-boltons, and the TSP MS3 cam). Don't plan on using any power adders

Would 30lb SVO injectors work ($199 from a vendor) or just get the flowed ones for $300.

Does it matter with my application?

It seems like I went over-kill on everything for this new set-up.


Thanks,

Bill

critter

iTrader: (9)

Just get the cheaper ones.
No reason for over-kill on injectors. The only reason to get the flow matched ones is if you are a hard core racer looking for every last horse. Or if you have money to burn.

THRLSKR

iTrader: (1)

Thanks for the reply...certainly don't have money to burn after these mods!

Racetronix

iTrader: (2)

It all comes down to:

FWHP
BSFC (NA or FI)
Max engine RPM / DC
FP

Racetronix

iTrader: (2)

An injector at the opposite end of the tolerance scale can create chronic knock problems and prevent anybody from reaching the max HP level no matter what go fast goodies one has added to their motor. Most disc injectors and EV6 Bosch injectors have much better than average tolerances as a percentage when compared to older types of injectors.

Payton

iTrader: (1)

Just read this long thread. I have a stock cube LS1, stage II 5.3 heads (10.6 compression), custom longtube step header 1 3/4 to 1 7/8. Fast 90 intake and tb. Cam is 230-230 .596 .598 lift on a 110 lsa. Motor is in a 69 camaro with a T56. No numbers yet as car is not finished, but thinking 430 to 450 rwhp with a redline in the 6700 rpm range. Running an Areomotive A1000 pump and regulator with high flow billet fuel rails. What injector would you rec for this set-up and where to purchase.

I also have a T-N-T wet shot kit but it should not have any bearing on the injector selection should it?

Thanks for your help

Payton

critter

iTrader: (9)

So you tune it rich enough it doesn't knock. The point is that for a daily driver, there is no point in flow matched injectors. Are the stock ones flow matched? But, as I said, it you are hard core enough to care about the last horse and are willing to spend an extra hundred to make sure you get it, make sure you get flow matched injectors.