Getting new fuel pump and injectors. Help! Pls... - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!

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post #1 of 22 Old 09-03-2019, 05:35 PM Thread Starter
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Getting new fuel pump and injectors. Help! Pls...

Ok, my 2.5 turbo intercooled with it set at 12 psi on the turbo needs some things done mechanically.

Since my fuel tank is leaking at the filler, the tank needs dropped probably. I have the 190lph pump.... I hear they are problematic/ unreliable. So, as such since the tank is getting dropped, I want the supposedly more reliable 255lph pump.

My question is this... if I get this pump, will it overfuel my engine? I think it is overkill for my 200hp goal. I want reliability, and ability to support future mods.... But not run it rich.

I am getting a set of 804 injectors... Same question. I think these are stock size, but I may be wrong.

I don't at this point want to tune.

Any help is appreciated!
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post #2 of 22 Old 09-03-2019, 07:24 PM
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Re: Getting new fuel pump and injectors. Help! Pls...

That's opposite of what I've read and experienced. It is my believe the 190 is the more reliable of the two.

This could be conjecture and related to the fake Walbro pumps that had hit the market in the recent past.
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post #3 of 22 Old 09-03-2019, 08:29 PM Thread Starter
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I got it at FWD Performance... I am guessing it is a real Walbro.

Would the 255 cause any issues or be less reliable if it is a real Walbro?
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post #4 of 22 Old 09-03-2019, 11:25 PM
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Re: Getting new fuel pump and injectors. Help! Pls...

Cindy sells the best out there. You should have zero issues with that pump.
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post #5 of 22 Old 09-04-2019, 12:14 AM
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Re: Getting new fuel pump and injectors. Help! Pls...

Zero need for the 255 walbro and the set of 804 injectors. You're throwing money away.
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post #6 of 22 Old 09-04-2019, 08:59 AM
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Re: Getting new fuel pump and injectors. Help! Pls...

I have been running a Walbro 255 in my ALL STOCK 90 Daytona VNT for 8 years without issue.
(Purchased from FWD Performance)

I was having intermittent driveabilty issues under boost and when I replaced the pump I went overkill to be absolutely sure that fuel was not an issue.

You cannot over fuel, the FPR regulates rail pressure at the injectors.

I did install an AFPR when I did the pump and that FPR lasted less than one year before the diaphragm blew out, why???
I was only running stock static pressure of 55 PSI with stock 12 lbs boost.
Never had and still have not had any issues with the stock FPR.

Jan
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40 Years ASE Certified (Retired)
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post #7 of 22 Old 09-04-2019, 11:21 AM
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Re: Getting new fuel pump and injectors. Help! Pls...

804 injectors would be a waste of $$. I've had fantastic luck having injectors cleaned that work like a charm. Check out mr.injector
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post #8 of 22 Old 09-04-2019, 11:59 AM Thread Starter
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The injectors are probably as old as the car. Mileage is over 95k.
Aren't the 804s stock injectors? Or?
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post #9 of 22 Old 09-04-2019, 04:13 PM Thread Starter
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I found out what those injectors are. Would a set of new turbo IV injectors work? I assume they fit, and flow very slightly more than stock 2.5 injectors.

Or, is there a set of better injectors out there that are non-Mopar for my application?

Last edited by Mike Tampa; 09-04-2019 at 08:12 PM.
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post #10 of 22 Old 09-04-2019, 09:15 PM
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Re: Getting new fuel pump and injectors. Help! Pls...

If injectors work age is rather irrelevant. Cleaning and flow numbers are a must but I do that with new injectors when I can.

I'd use the TIV injectors for sure.
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post #11 of 22 Old 09-04-2019, 11:00 PM
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Re: Getting new fuel pump and injectors. Help! Pls...

Quote:
Originally Posted by Mike Tampa View Post
I found out what those injectors are. Would a set of new turbo IV injectors work? I assume they fit, and flow very slightly more than stock 2.5 injectors.

Or, is there a set of better injectors out there that are non-Mopar for my application?
2.5TI, 2.2TII, 2.2TIV, and 2.2III all uses the SAME injector.
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post #12 of 22 Old 09-04-2019, 11:16 PM Thread Starter
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http://www.minimopar.net/perf/fuel.html
The above link shows they have different flow rates. It's good to know they all fit though.

I had a 93 Geo Storm, the injectors were not compatible with the 90 or 91. Had to make sure they fit, but also the correct flow rate. The turbo IV injectors from that
flow chart shows a slight higher output.
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post #13 of 22 Old 09-04-2019, 11:22 PM
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Re: Getting new fuel pump and injectors. Help! Pls...

Quote:
Originally Posted by Mike Tampa View Post
Mini-Mopar Turbo Performance
The above link shows they have different flow rates.

Please read the part numbers again.
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post #14 of 22 Old 09-05-2019, 12:11 AM Thread Starter
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I didn't see part numbers for the first ones, just the 803 and below on the chart.
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post #15 of 22 Old 09-05-2019, 12:16 AM Thread Starter
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Truth is, I wanted "better" injectors. I didn't look to stickers and didn't know they are the same or not. Whether better flow or better design. Found more flow is not good for my app without tuning.

I was hoping a better design would atomize the fuel better and more power.

The T4 has slightly more flow, not sure why. Just saw the numbers. Figured the hair more fuel may do more good than bad. Thus why I asked.
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