Fuel Pump Upgrade! Dual Walbro 400s
#21
Thread Starter
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
If you look at the second picture in the first post, the one on the right is flat and at the bottom, and the one on the left is a few inches higher and bent upward.
#22
Thunder550 had a thread on this years ago. I cant remember what the conclusion was, but IIRC his was due to low-impedance injectors. I think he lower FP 1bar, and raised IDC 10%.
I think I went to small on my injectors as well.
I think I went to small on my injectors as well.
#25
Thread Starter
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
-8 feed and -6 return.....I have one on a hobbs switch, so the return should be adequate....thought about going to -10 on the feed, but the fittings on the rail are only -8, so im not sure how much head loss I would be saving...
#26
Thread Starter
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
I redid my fuel bucket using an 07 bucket and some 3/8 pipe fittings from mcmastercarr. I think the way I had it before might have been leaking and bleeding off pressure, and this way is cleaner anyway.



I also thought this was really interesting...here are the 3 different style fuel buckets from 99 to the current gmt900 body style:

There are a lot of differences between all the years. If you look back at my bucket, youll notice Im using the 07 top, with the 03 lower bucket, and a 99 level sensor
The bucket of the 03-06 is much taller than the 07, which is why I wanted to use it.



I also thought this was really interesting...here are the 3 different style fuel buckets from 99 to the current gmt900 body style:

There are a lot of differences between all the years. If you look back at my bucket, youll notice Im using the 07 top, with the 03 lower bucket, and a 99 level sensor
The bucket of the 03-06 is much taller than the 07, which is why I wanted to use it.
#30






