Walbro 450 lph e85 fuel pump diy evo 8/9
#47
Evolved Member
iTrader: (102)
Update:
Shortly after I made the fitment issue post I realized I should probably dremel that edge off and push the pump right through. I did however, leave a small edge where the black connector sits to provide a tighter fit. It actually worked out very well where the fit was very tight it didn't need a clamp but I added a couple of zip ties for a good measure.
I put everything back together, took me few cranks to build pressure and it fired right up. I am planning to take the car out for a base pull in the next day or two to note the difference in fuel flow with this pump.
I am running on a bigger feed-line (-6 AN), however, still on the stock regulator and return line. Is upgrading the FPR necessary and why?
Thanks
On to the fun part of the post..lol
note I left the edge by the connector slightly protruding
Shortly after I made the fitment issue post I realized I should probably dremel that edge off and push the pump right through. I did however, leave a small edge where the black connector sits to provide a tighter fit. It actually worked out very well where the fit was very tight it didn't need a clamp but I added a couple of zip ties for a good measure.
I put everything back together, took me few cranks to build pressure and it fired right up. I am planning to take the car out for a base pull in the next day or two to note the difference in fuel flow with this pump.
I am running on a bigger feed-line (-6 AN), however, still on the stock regulator and return line. Is upgrading the FPR necessary and why?
Thanks
On to the fun part of the post..lol
note I left the edge by the connector slightly protruding
#48
Evolved Member
iTrader: (102)
So I ran the car and took it out for few pulls with the new pump and bigger feedline, surprisingly it isn’t running any richer … maybe 0.3 richer than before but that’s about it. I am on a stock 2.0l block with hta86 at 29psi and PTE1000’s.
The FPR and return lines are stock. Any thought on what I should look into?
Thx
The FPR and return lines are stock. Any thought on what I should look into?
Thx
Last edited by detroit pistins; Jul 23, 2013 at 07:21 AM.
#50
EvoM Guru
iTrader: (50)
So I ran the car and took it out for few pulls with the new pump and bigger feedline, surprisingly it isn’t running any richer … maybe 0.3 richer than before but that’s about it. I am on a stock 2.0l block with hta86 at 29psi and PTE1000’s.
The FPR and return lines are stock. Any thought on what I should look into?
Thx
The FPR and return lines are stock. Any thought on what I should look into?
Thx
Also, that ziptie arrangement to hold the pump looks pretty dicey. Is that all that's holding it? If the pump is able to work its way down, there's a good chance for fuel leakage around the pump seal and loss of fuel pressure and flow at higher boost.
#52
EvoM Guru
iTrader: (50)
If you were previously on pump gas with a modded Wally 255 that was in good condition, then I'm not surprised that AFRs did not change. The 416 is only needed for E85 or really big power on pump gas.