Why isn't the Walbro 255 lph pump in upgrading the Terminator instead of the dual conversions and such? It was/is heavily used in alot of other cars, so figure there must be a good reason, I just don't know what it is (yet).
255 lph fuel pump
- Thread starter D-Con
- Start date
Very good question with a very simple answer!
Those pumps are constant voltage pumps, the 03-04 cobras use a variable voltage pump system since the fuel system is returnless. Without a way to return unused fuel the pumps voltage is varied from 0 to as much as 15 volts (at least the parameter can be set that high in a custom tune) to keep up with demand or lack of it. If you used the conventional 255 walbro pumps they will fail since the pump can't deal with the range of voltage they will encounter in a 03-04 application. Hope this helps explain some!:beer: Hermann:rockon:
Those pumps are constant voltage pumps, the 03-04 cobras use a variable voltage pump system since the fuel system is returnless. Without a way to return unused fuel the pumps voltage is varied from 0 to as much as 15 volts (at least the parameter can be set that high in a custom tune) to keep up with demand or lack of it. If you used the conventional 255 walbro pumps they will fail since the pump can't deal with the range of voltage they will encounter in a 03-04 application. Hope this helps explain some!:beer: Hermann:rockon:
I have heard multiple failures even in the application for which they were intended, honeslty they are junk. In the other platform I have modded most used Supra TT pumps which were good for 365lph when rewired, not to mention reliable and super quiet.
Good info, thanks! I'm learnin from you guys every day!
I am NOT a fan of that company. I bought a pump for my old dakota r/t to keep up with the big n20 shot i had and i didnt work as good as as the stocker.
:fm:
go bap, twin gt's, or aeromotive :beer:
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