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

New fuel pump....Huge difference

Thread Tools
 
Search this Thread
 
Old 05-09-2004, 01:54 PM
  #1  
okinawa86vette
Drifting
Thread Starter
 
okinawa86vette's Avatar
 
Member Since: Jan 2002
Location: Las Cruces NM
Posts: 1,606
Likes: 0
Received 1 Like on 1 Post

Default New fuel pump....Huge difference

On a hunch, and the fact that a new fuel pump and strainer was only 55 bucks, I went ahead and installed it this morning. The car runs like new again. Not only does it pull much stonger now(for those that didn't catch my other thread, I've been off this season by as much as a second on the quarter), but my gas mileage is back to where it was last year. At 55, I was averaging 18 and now it's back up to 28. Cruising around in sunday light traffic around town, i'm averaging about 23mpg or so.

I'm just happy everything's back to where it was. The old strainer was pretty deteriorated and broke apart in my hands. And there was some nasty stuff on it, including long blond hair. I don't get that, but oh well. The tank looked pretty clean inside though, and I had let it run down to below 2 gallons before i did it. Also, the strainer was on 90* off, with it going longways from one side of the car to the other, instead of with the length of the car, as a handful of people said before when I ran a search.

Chris
Old 05-09-2004, 02:51 PM
  #2  
Bluevette85
Drifting
 
Bluevette85's Avatar
 
Member Since: Nov 2001
Location: Latham NY
Posts: 1,783
Likes: 0
Received 2 Likes on 2 Posts
Default Re: New fuel pump....Huge difference (okinawa86vette)

Did you put the long end of the strainer toward the front of the car?
Old 05-09-2004, 03:06 PM
  #3  
okinawa86vette
Drifting
Thread Starter
 
okinawa86vette's Avatar
 
Member Since: Jan 2002
Location: Las Cruces NM
Posts: 1,606
Likes: 0
Received 1 Like on 1 Post

Default Re: New fuel pump....Huge difference (Bluevette85)

I did. It seemed like the logical way when I looked at the baffle in the tank.
Old 05-09-2004, 03:11 PM
  #4  
dtorc4
Le Mans Master
 
dtorc4's Avatar
 
Member Since: Oct 2001
Location: Atlanta GA
Posts: 5,302
Likes: 0
Received 2 Likes on 2 Posts

Default Re: New fuel pump....Huge difference (okinawa86vette)

Are you hiding slimmies in your fuel tank again? :D
Old 05-09-2004, 03:34 PM
  #5  
rick lambert
Le Mans Master
 
rick lambert's Avatar
 
Member Since: Oct 2003
Location: seattle WA
Posts: 6,130
Likes: 0
Received 1 Like on 1 Post

Default Re: New fuel pump....Huge difference (okinawa86vette)

:thumbs: did you put in a new fuel filter too? :seeya
Old 05-09-2004, 03:58 PM
  #6  
okinawa86vette
Drifting
Thread Starter
 
okinawa86vette's Avatar
 
Member Since: Jan 2002
Location: Las Cruces NM
Posts: 1,606
Likes: 0
Received 1 Like on 1 Post

Default Re: New fuel pump....Huge difference (rick lambert)

I had just changed the filter about a month ago, so I didn't bother.

Chris
Old 05-09-2004, 04:12 PM
  #7  
evilryu530
Advanced
 
evilryu530's Avatar
 
Member Since: Mar 2004
Location: No. Cali ca
Posts: 98
Likes: 0
Received 0 Likes on 0 Posts
Default Re: New fuel pump....Huge difference (okinawa86vette)

where can i buy a new fuel pump? and do u have instructions and pics on how to change it? i have a 1984 L-83
Old 05-09-2004, 04:24 PM
  #8  
evilryu530
Advanced
 
evilryu530's Avatar
 
Member Since: Mar 2004
Location: No. Cali ca
Posts: 98
Likes: 0
Received 0 Likes on 0 Posts
Default Re: New fuel pump....Huge difference (okinawa86vette)

i stated in my other post that i was having problems with my car boggling in hot weather like it doesnt get gas, would a new fuel pump help it? WHATS CONSIDERED PINCHING WITH A CLOTHES PIN? to prevent vapor lock
Old 05-09-2004, 05:01 PM
  #9  
okinawa86vette
Drifting
Thread Starter
 
okinawa86vette's Avatar
 
Member Since: Jan 2002
Location: Las Cruces NM
Posts: 1,606
Likes: 0
Received 1 Like on 1 Post

Default Re: New fuel pump....Huge difference (evilryu530)

I don't know about pinching anything with a clothes pin. But you can pick up a new fuel pump at Napa or any of the other stores. Be sure to pick up a new strainer too while you're at it.

If you run a search for "fuel pump" on this site, you'll come up with a lot of explanations on how to install it. It's not hard. This was first time doing it and it took about an hour.


Chris
Old 05-09-2004, 06:30 PM
  #10  
FlyboyZR1
Drifting
 
FlyboyZR1's Avatar
 
Member Since: Aug 2001
Location: Minneapolis MN
Posts: 1,550
Received 27 Likes on 13 Posts

Default Re: New fuel pump....Huge difference (okinawa86vette)

How many miles did you have on the old pump?
Old 05-09-2004, 06:44 PM
  #11  
okinawa86vette
Drifting
Thread Starter
 
okinawa86vette's Avatar
 
Member Since: Jan 2002
Location: Las Cruces NM
Posts: 1,606
Likes: 0
Received 1 Like on 1 Post

Default Re: New fuel pump....Huge difference (FlyboyZR1)

Not sure, I wasn't the one that replaced it. But I've had the car for about 20k miles. I'd have to dig through the car's service records to find it, but I don't remember it ever being done. There's 240k miles on the car.

Chris
Old 05-10-2004, 09:33 AM
  #12  
Unriced
Pro
 
Unriced's Avatar
 
Member Since: Oct 2002
Location: Schmuckville SA
Posts: 586
Likes: 0
Received 0 Likes on 0 Posts
Default Re: New fuel pump....Huge difference (okinawa86vette)

Quote:

________________________________________ _
At 55, I was averaging 18 and now it's back up to 28
________________________________________ __

I have a hard time with that figure, is that info as reported by the computer

or by your own math.. Just asking , I dont see how a 350 could get that kinda mileage

in any car...
Old 05-10-2004, 09:41 AM
  #13  
okinawa86vette
Drifting
Thread Starter
 
okinawa86vette's Avatar
 
Member Since: Jan 2002
Location: Las Cruces NM
Posts: 1,606
Likes: 0
Received 1 Like on 1 Post

Default Re: New fuel pump....Huge difference (Unriced)

It's going by the computer, but in the past couple months, i've been resetting the avg fuel rate each fill up and it's been within a mpg. Going by the computer seems to be pretty accurate. My old 86 used to be off by several mpg. I think it just varies car to car.

It's also funny how some L98's get much better gas mileage than others. My car's kept in very well tune and it was it's whole life, so that may contribute to it. Every owner was exceptionally meticulous about keeping the car in great running order.

Chris
Old 05-10-2004, 10:43 AM
  #14  
Ben64FI
Instructor
 
Ben64FI's Avatar
 
Member Since: Dec 2003
Location: Roseburg Oregon
Posts: 124
Likes: 0
Received 0 Likes on 0 Posts
Default Re: New fuel pump....Huge difference (Unriced)

On this 86 we just bought, with 16,700 miles, 4+3, wife got 35mpg on the way home from Reno. That almost as good as I got on the new FI Ultra Classic!
Old 05-10-2004, 05:06 PM
  #15  
69mako
Race Director
 
69mako's Avatar
 
Member Since: Jan 2000
Location: USA. Northern Virginia
Posts: 16,473
Received 24 Likes on 19 Posts

Default Re: New fuel pump....Huge difference (Unriced)

Quote:

________________________________________ _
At 55, I was averaging 18 and now it's back up to 28
________________________________________ __

I have a hard time with that figure, is that info as reported by the computer

or by your own math.. Just asking , I dont see how a 350 could get that kinda mileage

in any car...
My 94 with new plugs and wires got 35.8 mpg on a trip to Savannah Ga 3 years ago :yesnod:
Old 05-11-2004, 12:20 AM
  #16  
John A. Marker
Le Mans Master
 
John A. Marker's Avatar
 
Member Since: Mar 2004
Location: Dublin CA
Posts: 5,107
Received 167 Likes on 148 Posts

Default Re: New fuel pump....Huge difference (69mako)

Make a run from the SF Bay Area to Seattle monthly. When I first bought the 85 I was getting 26 mpg, then installed hypertech power chip which dropped the mpg to 25. Just recently changed injectors, added adjustable pressure regulator cut out air box, ported phelum, changed out fuel pump and cut back the plugs. Made the run from Seattle to Bay Area on Sunday and got 27.8 pmg running 1-2 mph less than limit from Washington (70 to 60 MPH), Oregon was 55 to 65 MPH and California 70-60 MPH then hit stop and go traffic. All the mods were for HP, but if you keep your foot out of it the mpg goes up. You can get good mileage out of a 350! :yesnod:

Get notified of new replies

To New fuel pump....Huge difference




Quick Reply: New fuel pump....Huge difference



All times are GMT -4. The time now is 02:39 PM.