So two of my fuel injectors are bad and I am just wondering about using the accel replacements ones, I have an 85 gt 2.8l. Do I stay with the 15lb ones or am I able to use 19lb ones?

you cnt go up to 19lb without burning a chip that adjusts the fuel BPW I believe. I have all 6 15lb originals I removed from my 40k car after doing the 3.4 swap. they worked perfectly. PM me if you want them for cheap. I olso have a bag of OEM new rubber oring seals for the ends of them as well

[This message has been edited by jjd2296 (edited 04-17-2020).]

Oh, heck no on the Accel injectors.....

Stay with the stock 15# units!

[This message has been edited by olejoedad (edited 04-17-2020).]

quote Originally posted by olejoedad: Oh, heck no on the Accel injectors..... Stay with the stock 15# units!

Reading through the forum people said the accel. Were fine?

quote Originally posted by olejoedad: Oh, heck no on the Accel injectors..... Stay with the stock 15# units!

Yeah, what do you have to say about Accel injectors?

I bought a set of six Accel injectors for my 2.8; about 8 years and 80 000 km later I took apart the engine for a rebuild.

When I had the injectors flow-tested, one leaked and had to be replaced. I don't know for how long the injector was bad.

So in my case, it seems like the Accel brand was unreliable... I still have them though

[This message has been edited by pmbrunelle (edited 04-17-2020).]

Definitely don't go with 19# injectors. Even in a 3.4 the 19# injectors flow too much fuel and runs rich at stock fuel pressure.

Go to this website https://fuelinjectorclinic.com/flow-calculator

6 cylinder
140 hp
80% duty cycle
gasoline

Replacement injectors should be pintle style and not disk style for efficient operation by the ECM.

These might be suitable if they were in stock though I'm not sure about the impedence.

https://www.injectorplanet....cts/bosch-0280150715

[This message has been edited by fierofool (edited 04-17-2020).]

So what brands would be recommended?

I just bought a set of Bosch EV1 injectors for a 3.4. I'm not sure what brand are stock in the Fiero. I think they are Rochester but I couldn't find a 15 # injector in the Rochester brand.

I would suggest you take jjd2296's set, have them refurbished and flow matched. Injector Planet, Motorman Injectors or Injector Connection can do it for you and if there's an unrepairale problem with any of them, they can recommend the equivalent replacement set.

I haven't dealt with Motorman but the other two have given me good service.

[This message has been edited by fierofool (edited 04-17-2020).]

https://www.oreillyauto.com...njectors&pos=1#appli cations

Would these be a bad choice then ?

At $290 each, yeah, that's a really bad solution....

Take fierofools advice, or get on the web and by some cleaned and flow matched units.

quote Originally posted by olejoedad: At $290 each, yeah, that's a really bad solution.... Take fierofools advice, or get on the web and by some cleaned and flow matched units.

Well thanks for pointing that out I thought that was for all of them lol

quote Originally posted by olejoedad: At $290 each, yeah, that's a really bad solution....

...

quote Originally posted by Patrick: ...

hey hey hey I said my bad lol

Monkeybean, I just paid $90 for a set of refurbished and flow matched Bosch injectors from Injector Planet. The other places like Fuel Injection Connection and Motorman Injectors have comparable prices. When they have been refurbished they usually are flow matched. It's worth having them serviced before installing them. And whether you've done it recently, or not, replace your fuel filter before installing them.

The used set I have came out of my 40k car. Ran perfect just swapped in a 3.4 PR block

Didn't the 3.4s use 17lb injectors? Is everyone doing fine with the 15lb? I've got my 3.4 short block being inspected before I install it and I've been wondering about this...

quote Originally posted by olejoedad: At $290 each, yeah, that's a really bad solution.... Take fierofools advice, or get on the web and by some cleaned and flow matched units.

Look again. That is for 6. Still expensive but not outrageous.

I see....one lot of six.....thanks.

Still would not use an ACCEL injector

[This message has been edited by olejoedad (edited 04-19-2020).]

quote Originally posted by Rick Vanderpool: Look again. That is for 6. Still expensive but not outrageous.

And if you do, buy a set of 8; it's not that much more expensive. The vendors are geared toward selling parts for the V8 folks.

When your Accel injector takes a crap, you'll have two flow-matched spares available.

I bought a set of 6 for my Fiero, then when I had the leaker, I regretted not having purchased 8.

If I switch to higher-flow injectors afterwards, I'll investigate options other than Accel.

[This message has been edited by pmbrunelle (edited 04-19-2020).]

quote Originally posted by Modesto: Didn't the 3.4s use 17lb injectors? Is everyone doing fine with the 15lb? I've got my 3.4 short block being inspected before I install it and I've been wondering about this...

The injectors for my 3.4 are rated at 17# which actually flow 16.76 at 43.5 psi, stock Fiero fuel pressure.

Bosch EV1 Fuel Injector
Jetronic port / 4 hole nozzle

Flow rates @ 43.5 psi / 3 bar
16.76 lb per hour (My Note: 17# rated injectors flow at approximately 16.666 lb/hr at 3 bar or 43.5 psi. See calculator chart below)
126.5 G per min. (N-Heptane)
176.1 cc per min

15.90 Ohm resistance

Bosch Part # 0280150415
BMW part # 13641730060

CHART FROM MOTOR MAN FUEL INJECTOR SUPPLY

Fuel Injector Size Calculator
Horsepower (at the flywheel) 160
Number of Injectors 6
B.S.F.C. *

Max Duty Cycle in % 80


Required Injector Static Flow Rate @ 43.5 psi lb/hr 16.666

Beautiful! 17s it is then.

quote Originally posted by fierofool: I would suggest you take jjd2296's set, have them refurbished and flow matched. Injector Planet, Motorman Injectors or Injector Connection can do it for you and if there's an unrepairale problem with any of them, they can recommend the equivalent replacement set.

I went with rebuilt injectors from Precision Auto Injectors... although keep in mind, this was five years ago.

quote Originally posted by Patrick: I just ordered a set of these fuel injectors for my Formula - total price (with discount and including shipping to WA)... $77.20 Not too shabby. And no cores are required to be returned.

[This message has been edited by Patrick (edited 04-19-2020).]

quote Originally posted by Patrick:

Well if you click on that link they want 1000 bucks for them so probs not lol

I believe that's their way of saying that they no longer have them in stock.

So I ended up with a set of the recommended Bosch EV1 injectors. The number on the ones I removed from my motor is 5235210. Just to make 1000% sure, this means I'm going from pintle to pintle and not disk to pintle, correct? I've been reading too many threads again and some people are saying some '88s came with disk style, but I can't imagine that would be the case.

There have been some reports of disc injectors in the 88's but there was some speculation that they were only in the last of the production run. What you have are pintle. You can verify it by looking into the business end. Should be only 1 hole. The EV1's you purchased are a 4 pintle injector so you will see 4 tiny holes in the spray nozzle.

5325210 was used in Pontiac Firebird 2.8L V6 1985-1986-1987-1988-1989 . They would probably be 15# injectors unless the Firebird ran a fuel pressure higher than 43.5 psi. It was also listed for the 85-88 2.8 Fiero and at 43.5 psi, should provide 15#/hr. In actuality, it's 14.65#/hr.

When you push the HP up from 140 in the 2.8 to 160 in the 3.4, the required flow is 17# which is actually 16.66#/hr so you see you need an extra 2 #/hr for the bigger engine. The EV1 you purchased flow 16.7#hr at an 80% duty cycle. Resistance is the same as the 5325210 injectors at 5.90 Ohm.

.
There are three kinds of men:

1. The ones that learn by reading.
2. The few who learn by observation.
3. The rest of them have to pee on the electric fence and find out for themselves. Will Rogers

[This message has been edited by fierofool (edited 05-11-2020).]

Awesome. Thanks for the info!