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View Full Version : return style fuel system


ginson3
09-01-2009, 07:27 PM
Hey , just wondering if anyone here has any experience with a return style system on the mm? I am putting a Magnafuel system on and would appreciate input from anyone willing. I have fear the gear pump MP-4701 is going to be loud.
juno
09-02-2009, 05:38 AM
Why would you put one on? Are you trying to make 800rwp or something?
ginson3
09-02-2009, 11:39 AM
No, i am shooting for around 600RW. I have a single GT pump in it now (thanks for the really goo install thread) and a KB BMP but was still running out of fuel on the dyno. Talking with the folks at Injected Engineering and Pauls High Performance who both had experience at doing a twin GT set up, they both recommended that the return style was in this case , in part due to the MM fuel hat modifications required would be the way to go. Pauls High Performance had done a twin GT fuel hat conversion which I think can still be bought out there somewhere, but if I remember correctly it was nearly a grand. Anyhows, I got what I got, and just hope it works out. I'll let you know soon.
ntd
12-08-2009, 10:32 AM
No, i am shooting for around 600RW. I have a single GT pump in it now (thanks for the really goo install thread) and a KB BMP but was still running out of fuel on the dyno. Talking with the folks at Injected Engineering and Pauls High Performance who both had experience at doing a twin GT set up, they both recommended that the return style was in this case , in part due to the MM fuel hat modifications required would be the way to go. Pauls High Performance had done a twin GT fuel hat conversion which I think can still be bought out there somewhere, but if I remember correctly it was nearly a grand. Anyhows, I got what I got, and just hope it works out. I'll let you know soon.

any update?
MM_BKK
12-10-2009, 11:03 AM
Like juno said, unless you're planning on making over 800rwhp, you're probably going to be wasting money on a return system.

I'm running returnless dual GT pumps with -8 line from tank to fuel rail and I have zero fuel delivery problem with the Whipple 3.4 making 20lbs of boost.

One of the problem with factory fuel line on the MM is the 3/16" restrictor on the fuel connector at the rail. -8 line is 3/8" ID. When you double the diameter of a circle, the area is quadrupled.
RoyLPita
12-10-2009, 12:06 PM
MarauderTJA had it done.
dohc324ci
12-10-2009, 01:05 PM
Like juno said, unless you're planning on making over 800rwhp, you're probably going to be wasting money on a return system.

I'm running returnless dual GT pumps with -8 line from tank to fuel rail and I have zero fuel delivery problem with the Whipple 3.4 making 20lbs of boost.

One of the problem with factory fuel line on the MM is the 3/16" restrictor on the fuel connector at the rail. -8 line is 3/8" ID. When you double the diameter of a circle, the area is quadrupled.


Do you have a Carb sticker that came with the blower?
ImpalaSlayer
12-10-2009, 02:02 PM
Do you have a Carb sticker that came with the blower?


your desperate! lol
dohc324ci
12-10-2009, 02:08 PM
Yeah...I might have to rely on my new found "friend".

You would be too if you lived in Cali! I noticed for the Ford Racing Whipple SC they include a sticker with it just say maybe...LOL
MM_BKK
12-10-2009, 02:36 PM
Do you have a Carb sticker that came with the blower?

We don't need no stinkin Carb sticker in Jersey!
dohc324ci
12-10-2009, 03:06 PM
We don't need no stinkin Carb sticker in Jersey!

Not yet:P hahah