C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Fuel Pump

Thread Tools
 
Search this Thread
 
Old Nov 11, 2017 | 11:45 PM
  #1  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default Fuel Pump

Looking to replace my fuel pump and not sure which one to choose from. I think I have narrowed it down to these two. Opinions?

http://www.racetronix.biz/customkiti...=FPA%2D010&eq=

http://www.racetronix.biz/customkiti...FPA%2D010H&eq=
Reply
Old Nov 12, 2017 | 12:05 AM
  #2  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,376
Likes: 3,260
From: Hartford WI
Default

Originally Posted by Mishawaka
Looking to replace my fuel pump and not sure which one to choose from. I think I have narrowed it down to these two. Opinions?

http://www.racetronix.biz/customkiti...=FPA%2D010&eq=

http://www.racetronix.biz/customkiti...FPA%2D010H&eq=
I have the bigger one but either or works. Is your car modified or within 100HP of stock.
Reply
Old Nov 12, 2017 | 12:11 AM
  #3  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

All stock except the cats are gutted and the diffuser removed. I wasn't sure if I would need an adjustable FPR for the bigger one or not.

Last edited by Mishawaka; Nov 12, 2017 at 12:12 AM.
Reply
Old Nov 12, 2017 | 12:13 AM
  #4  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

Or maybe I should with one anyways?
Reply
Old Nov 12, 2017 | 12:39 AM
  #5  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,376
Likes: 3,260
From: Hartford WI
Default

Originally Posted by Mishawaka
All stock except the cats are gutted and the diffuser removed. I wasn't sure if I would need an adjustable FPR for the bigger one or not.
I'm not sure I know why the FPR needs to be adjustable regardless of which pump you use. IMO, the FPR is there to regulate the pressure NOT volume. It hits past preset pressure, it dumps it off to the return line, build up pressure, rinse and repeat. Unless you have a reason to increase pressure, I would just replace it with a stock one if you haven't for a long time. The rubber can get old and break or the spring can get weak.
Reply
Old Nov 12, 2017 | 12:40 AM
  #6  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,376
Likes: 3,260
From: Hartford WI
Default

Originally Posted by Mishawaka
Or maybe I should with one anyways?
How old is it?
Reply
Old Nov 12, 2017 | 01:08 AM
  #7  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

Originally Posted by aklim
How old is it?
I replaced the FPR earlier this year. I really don't think that is the problem though. The old one didn't leak or anything, I just replaced because it slightly smelled of fuel but I think it was just smell from the intake to be honest. The new one smells the same.
Reply
Old Nov 12, 2017 | 09:35 AM
  #8  
Cjunkie's Avatar
Cjunkie
Safety Car
 
Joined: Jun 2006
Posts: 4,008
Likes: 1,487
From: Ashland, OH
Default

I’d put in a new OE one for $62 from any of the big box stores and call it a day for the next 10-20 years.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Nov 12, 2017 | 11:39 AM
  #9  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,376
Likes: 3,260
From: Hartford WI
Default

Originally Posted by Mishawaka
I replaced the FPR earlier this year. I really don't think that is the problem though. The old one didn't leak or anything, I just replaced because it slightly smelled of fuel but I think it was just smell from the intake to be honest. The new one smells the same.
There is always going to be fuel around that area but if there is any indication of a leak, it has to go. Since it is new, unless you FUBARed something going in, I have doubts it is bad.

You said you changed the pump, did you reuse the pulsator?
Reply
Old Nov 12, 2017 | 11:52 AM
  #10  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

Originally Posted by aklim
There is always going to be fuel around that area but if there is any indication of a leak, it has to go. Since it is new, unless you FUBARed something going in, I have doubts it is bad.

You said you changed the pump, did you reuse the pulsator?
I replaced the pulsator when I replaced the pump.
Reply
Old Nov 12, 2017 | 11:54 AM
  #11  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,376
Likes: 3,260
From: Hartford WI
Default

Originally Posted by Mishawaka
I replaced the pulsator when I replaced the pump.
With what? Hose rated to be fuel submersible? Where did you get it from?
Reply
Old Nov 12, 2017 | 11:57 AM
  #12  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

Originally Posted by aklim
With what? Hose rated to be fuel submersible? Where did you get it from?
I replaced with a pulsator. Should I replace with a rubber hose like many have done? I don't remember where for sure but probably Rockauto or a local parts store.
Reply
Old Nov 12, 2017 | 01:14 PM
  #13  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default

Stock car? within 100 hp of stock? Get the stock pump.
Reply
Old Nov 12, 2017 | 01:57 PM
  #14  
ddahlgren's Avatar
ddahlgren
Melting Slicks
10 Year Member
 
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
Default

Possible silly question but what is wrong with the one in the car?
Reply
Old Nov 12, 2017 | 02:20 PM
  #15  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

Originally Posted by ddahlgren
Possible silly question but what is wrong with the one in the car?
It has started to make a weird noise. like its struggling. I think I will order the stock upgrade one, the engine is stock and I have heard Walbro are good pumps. Then I just need to move onto the other issues. Thanks everyone.
Reply
Old Nov 12, 2017 | 06:45 PM
  #16  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,376
Likes: 3,260
From: Hartford WI
Default

Originally Posted by Mishawaka
I replaced with a pulsator. Should I replace with a rubber hose like many have done? I don't remember where for sure but probably Rockauto or a local parts store.
What is the pulsator made of? Rubber or something that you slip over the ends. If it gets loose from age, where does the fuel from the pump go? Back to the tank so you won't notice anything BUT you lose fuel pressure. If you use some sort of fuel hose, it might not work since it may not be designed to be submerged. So it holds fuel inside the hose but outside can attack the rubber.

The Racetronix kit has all the stuff you will need. Best of all, you won't have to run to the parts store for this, that or the other, usually when it is closed or they are out of that part.
Reply
Old Nov 12, 2017 | 08:02 PM
  #17  
ddahlgren's Avatar
ddahlgren
Melting Slicks
10 Year Member
 
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
Default

I amsure the hose can be easily obtained from aeroquip and others.
Reply

Get notified of new replies

To Fuel Pump

Old Nov 12, 2017 | 09:23 PM
  #18  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

Originally Posted by aklim
What is the pulsator made of? Rubber or something that you slip over the ends. If it gets loose from age, where does the fuel from the pump go? Back to the tank so you won't notice anything BUT you lose fuel pressure. If you use some sort of fuel hose, it might not work since it may not be designed to be submerged. So it holds fuel inside the hose but outside can attack the rubber.

The Racetronix kit has all the stuff you will need. Best of all, you won't have to run to the parts store for this, that or the other, usually when it is closed or they are out of that part.
It was metal like the original. It did seem kinda loose though now that I think of it. I'm gonna order the Racetronix stock upgrade with the Walbro pump, looks to have everything I need but I think I may order this also from corvettemods.

https://www.corvettemods.com/C4-Corv...waAjR9EALw_wcB

My sending unit didn't look bad from what I remember but I just reading another post and sounds like they can get a ground problem. im not really a parts swapper but with it being a 92 I want it to be dependable and don't mind buying an extra part here and there to ensure me from being stranded somewhere. I do wonder if I could get by with just buying the bulkhead wiring assembly though, much cheaper.

http://www.racetronix.biz/itemdesc.a...WA-C44&eq=&Tp=
Reply
Old Nov 12, 2017 | 10:16 PM
  #19  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,376
Likes: 3,260
From: Hartford WI
Default

Originally Posted by Mishawaka
It was metal like the original. It did seem kinda loose though now that I think of it. I'm gonna order the Racetronix stock upgrade with the Walbro pump, looks to have everything I need but I think I may order this also from corvettemods.

https://www.corvettemods.com/C4-Corv...waAjR9EALw_wcB

My sending unit didn't look bad from what I remember but I just reading another post and sounds like they can get a ground problem. im not really a parts swapper but with it being a 92 I want it to be dependable and don't mind buying an extra part here and there to ensure me from being stranded somewhere. I do wonder if I could get by with just buying the bulkhead wiring assembly though, much cheaper.

http://www.racetronix.biz/itemdesc.a...WA-C44&eq=&Tp=
It would look like the what was in the picture below. It goes between the pipe on the pump assembly and the pump outlet.

I don't know about you but I don't run that wiring assembly. Looking at the voltage on the scanners mine seems pretty consistent.


Reply
Old Nov 12, 2017 | 11:13 PM
  #20  
Mishawaka's Avatar
Mishawaka
Thread Starter
Pro
 
Joined: Nov 2014
Posts: 527
Likes: 23
From: Mishawaka Indiana
Default

Yep, that's a pulsator, exactly what I replaced. You think replacing it with a section of submersible hose would be better? Many seem to do it.

I just figured fresh wiring or even a new sending unit would add to reliability.
Reply



All times are GMT -4. The time now is 04:33 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE