This is a discussion on Fuel pump... within the General Help forums, part of the LSx Technical Help Section category; Originally Posted by TransAmX2 I swapped out the pump in my '98 TA a few years ago, did the trap ...
11-15-2012, 04:41 AM #21
12-08-2012, 08:07 PM #22
- Join Date
- Feb 2010
- north bay california
- 00 camaro ss M6 #6695
Thanks guys to you all for the good info on this! Now I have a question...
I have the walbro pump on my car. But I have noticed a difference on the gas mileage. Is that normal?
I got really bad now!
12-09-2012, 07:01 AM #23
- Join Date
- Dec 2005
- Laurel, Maryland
2000 Grand Prix GTP
- 2000 Trans Am WS6 M6
12-09-2012, 11:26 AM #24
Haven't heard that one before.
On my wifes car, her fuel pressure (with original pump) was a bit weak at 54-55psi so I knew it was time for a change. I installed the racetronix pump (which is a walbro 255) and fuel pressure is now a rock steady 60 psi all the time.
There hasn't been any gas mileage differences in her car (still getting 21-22mpg around the city and 28-30 mpg highway).
What I have noticed almost imediately (other than the fuel pressure increase) is that now the car starts much quicker with the first crank of the key. Before the engine would crank over 3-4 times before it fired. Now it's one or maybe 2 cranks and it comes to life quickly.
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