Limits of stock Flex Fuel pump

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10-18-2010, 10:48 AM

#21

skolman91

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Quote:

Originally Posted by 89LS1FOXER

i got a very nice bolt in kit from magnuson for returnless fuel systems, it uses a 255 walbro and that took care of it.

how much, and do you have the cranking problems or does it have a check valve built into it..?

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10-18-2010, 11:06 AM

#22

89LS1FOXER

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it was like 130 shipped i think. only time i had cranking problems was when the temp would drop way down in the winter, but that was most likley due to me using E85 and not the pump.

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10-18-2010, 04:48 PM

#23

supersub

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Quote:

Originally Posted by SILVERADO11

Did your Flex Fuel supersub come with the return fuel system? or did you switch it over? if so how? My 2006 Flex Fuel silverado 1500 came from the factory returnless, and still is.

It came factory equipped with the return system, think they changed to returnless 04-05?

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10-20-2010, 03:03 PM

#24

ZexGX

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Does anybody have an electrical pinout or close-up pictures of these pumps? Are they louder or quieter than say a Walbro? I'm interested to see if they could be adapted to work on F-bodies, since a buddy of mine is looking for a quiet fuel pump for his 500rwhp NA build... Why, I don't know.