fass?? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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Old 08-13-2010, 12:02 PM
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fass??

new to the Forum looked around a little before posting this and havent seen it brought up yet.

little background: I have a 2010 F-350 4700 miles on it. volant intake, cat/dpf delete M.B.R.P. stainless exhaust, and a spartan 275 tune,
when i go anymore then half throttle my fuel pressure gauge on the piller reads like 1.5 - 2.5 PSI after i did this once or twice I though it would be a good idea to drive it as easy as i could until i got this fixed.

question: could this be something wrong with my stock pump? bad fuel? or do i just need to put a FASS system in?

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Old 08-13-2010, 12:50 PM
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Are there any codes? The stock fuel system is more than enough for the 275 tune.
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Old 08-13-2010, 01:02 PM
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yeah i would def. say the stock system is plenty also
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Old 08-13-2010, 02:42 PM
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no codes when i talked with spartan they said the same thing anyone else have this happin i dont really wana spend 600+ if i dont have to but i will if its going to be better on the truck
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Old 08-13-2010, 03:04 PM
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If you do take the plunge and get an aftermarket lift pump, go with an Air Dog II. I would definitely be sure though before you spend the money. You should be maintaining at least 3 psi with the stock low pressure pump, so you definitely have an issue.
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Old 08-14-2010, 08:11 AM
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Quote:
Originally Posted by 08stroker250 View Post
If you do take the plunge and get an aftermarket lift pump, go with an Air Dog II. I would definitely be sure though before you spend the money. You should be maintaining at least 3 psi with the stock low pressure pump, so you definitely have an issue.
just woundering do you have stock in airdog or is it something that fass did to you late at nitewhy do you think there product is that much better?
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Old 08-14-2010, 06:59 PM
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just woundering do you have stock in airdog or is it something that fass did to you late at nitewhy do you think there product is that much better?
Air Dog has a better warranty (lifetime) and they use 1/2" fuel lines, FASS uses 3/8" fuel lines. The filters on the Air Dog are also not big and bulky like the FASS ones.
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Old 08-29-2010, 06:27 PM
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fass has a lifetime warranty too,research is awesome
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Old 08-29-2010, 07:19 PM
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Originally Posted by 08pwrstrokr6.4 View Post
fass has a lifetime warranty too,research is awesome
It must be something recent because it hasn't always been that way. I think it use to be a 2 year warranty that FASS gave out. I guess they realized that daddy's business was selling more units.
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Old 08-29-2010, 08:25 PM
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Fass has always been a good product, but the air dog system has just refined the technology just a bit further in my opinion. Are the fass systems still pretty loud compared to the airdog? I havent heard a new fass system in the last year or so.
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