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Oct 20, 2011 | 12:12 AM

LS1121

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Injectors

I'm trying to grasp what I've been told. The "Tuner" told me that he could not complete my tune because when he got the car to 3000 rpm's the fuel pressure went to 33 lbs. The injectors are 28 lb. injectors correct? so what is the problem? Any insight would be Great.

Oct 20, 2011 | 12:57 AM

01ssreda4

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From: Turnin' Wrenches Infractions: 005

Sounds like a failing fuel pump.........

Oct 20, 2011 | 04:31 PM

LS1121

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Quote:

Originally Posted by 01ssreda4

Sounds like a failing fuel pump.........

Yes that is what he said, but if the injectors are 28 lb. and I have 33 lbs. why could he not complete the tune?

Oct 20, 2011 | 04:57 PM

Blk98Vert

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Because the pump cant hold pressure at high rpm

Oct 20, 2011 | 05:04 PM

01ssreda4

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From: Turnin' Wrenches Infractions: 005

The injectors need 58 psi to deliver their 29 POUNDS of fuel. Two completely different "pounds".

Oct 20, 2011 | 06:07 PM

LS1121

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Quote:

Originally Posted by 01ssreda4

The injectors need 58 psi to deliver their 29 POUNDS of fuel. Two completely different "pounds".

OK Thanx, so i need to find some kind of fuel pump so he can finish my tune. What would be an economically priced pump, street driving only.I do not go to the track with my car.Thanx again.

Oct 20, 2011 | 07:44 PM

baxsom

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Quote:

Originally Posted by LS1121

OK Thanx, so i need to find some kind of fuel pump so he can finish my tune. What would be an economically priced pump, street driving only.I do not go to the track with my car.Thanx again.

oem replacement

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Oct 21, 2011 | 12:34 PM

LS1121

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From: Charlotte NC

Quote:

Originally Posted by Blk98Vert

Walbro 255

OK so I did a search and did not find what I was looking for so................................Is there a particular part number for this pump? and is it plug and play for my 98 Z28?

Oct 21, 2011 | 02:09 PM

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parks450

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Get a hotwire kit and a racetronix setup. Their one of the best set-ups out their.

Oct 21, 2011 | 02:31 PM

#11

01ssreda4

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From: Turnin' Wrenches Infractions: 005

That walbro pump is crap. Lots of documented failures. Choose something else.

Oct 21, 2011 | 02:54 PM

#12

777

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Get a racetronix fuel pump from one of the vendor's on this site.

98 Fuel Pump

99-02 Fuel Pump

Optional but recommended Hotwire Kit

Oct 21, 2011 | 03:32 PM

#13

darkvader0

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Quote:

Originally Posted by 01ssreda4

That walbro pump is crap. Lots of documented failures. Choose something else.

Have to disagree with them being crap. I have the same Walbro 255 pump in all three of my cars now lol. Two of them have been going strong for over 12 years.

My stock Trans Am fuel pump failed a few months ago and I replaced it with the Racetronic/Walbro setup. I recommend them with full confidence.

Oct 21, 2011 | 03:39 PM

#14

parks450

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Not saying walbro us crap completely but their are many documented failures with them. Now on the other hand I have never heard of a racetronix pump failing.

Oct 21, 2011 | 03:46 PM

#15

redbird555

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Quote:

Originally Posted by parks450

Not saying walbro us crap completely but their are many documented failures with them. Now on the other hand I have never heard of a racetronix pump failing.

^You do know the racetronix kit uses a walbro ppump encased in an aluminum sleeve right? OP fuel pumps can be hiit and miss but I woulds till do the racteronix kit as it is a drop in procedure.

Oct 21, 2011 | 06:37 PM

#16

LS1121

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From: Charlotte NC

Quote:

Originally Posted by redbird555

^You do know the racetronix kit uses a walbro ppump encased in an aluminum sleeve right? OP fuel pumps can be hiit and miss but I woulds till do the racteronix kit as it is a drop in procedure.

So......what I am getting is Walbro is the best for the money. Some say they are no good but Racetronix is Good and they use the walbro pump. So is there a difference in the pump itself between the 98 which is what I have and lets say 1 99+?

Is there a part # for the 1998?

Oct 22, 2011 | 09:23 AM

#17

slt200mph

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If you are just going to be on the street and not going to the track another option is to replace your stock pump with stock OEM pump replacement pump. You can get a made in the USA OEM replacement pump at rockauto.com for $258 with the wiring harness. Don't beleive all that BS about you have to drop your rear axle or you have to cut a hole in your floor. That is not true. Just drop your exhaust and fuel tank and your there. I just did one two months ago and it took only a hour and twenty minutes to do. I then went on a 5000 mile trip and it worked perfect. Car makes 452/418 and the OEM pump feeds just it fine.

Oct 22, 2011 | 11:26 AM

#18

Racetronix

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From: A Racetronix dealer near you...

Quote:

Originally Posted by slt200mph

Don't beleive all that BS about you have to drop your rear axle or you have to cut a hole in your floor. That is not true. Just drop your exhaust and fuel tank and your there. I just did one two months ago and it took only a hour and twenty minutes to do.

Fuel Pump Module, 99-02 F-Body, Complete

Factory Delphi F99 Fuel Pump Assembly

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Oct 22, 2011 | 11:32 AM

#19

LS1121

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From: Charlotte NC

Quote:

Originally Posted by Racetronix

Fuel Pump Module, 99-02 F-Body, Complete

Factory Delphi F99 Fuel Pump Assembly

Great Price but............My Z28 is a 98, will this fit???

Great Video!!!!

Last edited by LS1121; Oct 22, 2011 at 12:14 PM.

Oct 22, 2011 | 11:43 AM

#20

Racetronix

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From: A Racetronix dealer near you...

Quote:

Originally Posted by LS1121

Great Price but............My Z28 is a 98, will this fit???

The one above is for 99-02.

These are for 98 only:

F98 Fuel Pump Assembly - Performance

F98 Fuel Pump Assembly - Factory Upgrade

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