Hutch mod
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
If you are planning on removing the stock fuel bowl then you need a spin on water separating filter to replace the stock filter.
Or just for peace of mind.
I have been running the small filter for several years without a problem. Have only replaced it once and it really didn't need it but they are only about 3 bucks. With the see-through filter it is easy to slide under the truck to see if it needs replacing. I keep a spare in the truck.
More Turbo
Joined: Mar 2011
Posts: 683
Likes: 1
From: cincinnati, oh.
chris
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Regulated return and fuel bowl delete for higher volume of fuel to larger injectors. All dependfs how much HP you are going for. I still have the stock fuel bowl with 200/80 hydrids and dynoed at 480+HP - 880+ lb/ft TQ.
Would I have more HP & TQ with a RR and fuel bowl delete. Maybe, maybe not.
Do I want more? No.
Would I have more HP & TQ with a RR and fuel bowl delete. Maybe, maybe not.
Do I want more? No.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
You always have to carry an extra filter if you use the small one on the frame. I had to replace one at the worst time on a friends motor home and he didn't have one on hand. Thats the only disadvantage I can see with the small filter. Again, maybe I missed it but the tube in the tank is 3/8 inch, is the outlet on top of the tank, feed line 3/8 inch also?
Chet
Chet
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
Thought so, thank you. I just have to figure which way I want to go on the filter. I wonder what tugly thing was on the fuel pressure at WOT.
Chet
Chet
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Fleet Mechanic
Joined: Dec 2010
Posts: 1,546
Likes: 9
From: Wellington, Co
Not sure of the exact numbers but some who have used a spin on filter question the ability of the pump to pull through the filter adequately. I know Tugly did the fuel pressure gauge after a lot of injector grief, probably not taking any chances.
More Turbo
Joined: Mar 2011
Posts: 683
Likes: 1
From: cincinnati, oh.
i was planning on putting my spin on filter before the oem pump, that way i dont have to full with the fuel line after the pump. so do you guys think that the oem pump will struggle that way? would a small lift pump before the spin on be the way to go?
thanks chris
thanks chris
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
My situation is wierd with the big sticks. At a full tank, my fuel pressure never drops below 50 PSI at WOT, but it gets as low as 25 PSI at WOT when the fuel gauge reaches 1/4 - really not good for the injectors.
The spin-on is fine with stock sticks and maybe for AC 160/stock nozzles.
The spin-on is fine with stock sticks and maybe for AC 160/stock nozzles.
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