Wondering what lift pump to get just wondering what everyone else thinks? I was thinking more towards the twins a little cheaper and no filter to worry about in the winter. Also twins seems like they are a little easier to install. Just let me know what you think.

I personaly like the additional fuel filter, and water seperator. But i know nothing of Kennedy set-up, so i cant comment on it.

Tyler
MPF

I love my twins. I can't hear them till I put my head right to them and I don't have pickup issues. I've been down that road with the AD 150.

I've had FASS and currently have kennedy twin pumps. I like kennedy's better. Better wiring harness(pumps wont run without oil pressure), flow through so you wont be stranded if they ever fail, and great instructions.

Kennedys twins

I have heard several people talk about problems with AirDog`s fuel line connection and their pickup. The connection connected and pickup has been picking up with the low fuel light on seamlessly. AirDogs are still on sale to the end of the month for $499. What ever one you get I don't think you be disappointed. I didn't realize how bad I was starving my truck for fuel till I put the lift pump on.

You can get an extra filter with the dual Kennedy pumps.

Does the air dog really improve your MPG?

I really dont see how, but havent had it on there long enough to see. Also I did my tranny upgrade at the same time so it be hard for me to say.

They say something to due with the air separator will give you better mpg.

The better mileage is suppose to come from having pure fuel, and getting better atomization.

Tyler
MPF

I like my Kennedy twin pumps. Can't even tell they are there, no noise at all. I also have his mega filter. The install was fairly easy. Removing the plug for the oil sensor could be a pain if you do not get it hot enough. My only issue was the fuel lines. Not really a problem. I just did not like the fuel bath I took when I removed the tank line.

Kennedy pump/filter combo here. Should be the first thing you do to the truck...

what is the price diffrence

Kennedy pump/filter combo here. Should be the first thing you do to the truck...

Did you see a big difference with stock truck, or are you saying this because of the filtration?

I like my Kennedy twin pumps. Can't even tell they are there, no noise at all. I also have his mega filter. The install was fairly easy. Removing the plug for the oil sensor could be a pain if you do not get it hot enough. My only issue was the fuel lines. Not really a problem. I just did not like the fuel bath I took when I removed the tank line.

To prevent getting douched with fuel when removing fuel lines on frame, first remove rubber hose at inlet to OEM Fuel Filter, insert air nozzle connected to compressor, and blow fuel back into tank. This also prevents siphening your tank dry.
If you remove fuel tank filler cap, you'll hear bubbling in tank.

I've installed both and the Kennedy setup wins hands down in my book. I really disliked how the airdog pickup installs.

So what one is easier to install then? I have done a holley black before kind of a pain, I want to use the stock lines if possible. Also does it come with everything i need to have to install?

The AirDog came with everything. Instruction was OK. Have to drop the tank or lift the bed to install the pickup in the tank. Me and that return hose had a run around. Other than that it was bad. Oh yeah it comes with a long enough wiring harness for a limo.:rolleyes:

Wiring harness was long enough to wire into your 5th wheel taillights,

I love my tts pumps. quiet, dont know their there untill you really look for them.
Plus i dont want anything else sticking below my frame rails.

Will be installing an Airdog 150 this weekend. Saw the stock pureflow pickup was kinda cheesy so I opted for Kennedys billet fuel pickup and LB7 sender unit upgrade. One question for guys that have done this, will the fuel supply from the Airdog be plumbed back to the hard line just in front of the tank or do you run 1/2" flex line all the way to the OEM fuel filter? Only area I wasnt completely clear on.

not to hijack the thread but since its on the same topic... Ive been looking for a lift pump set up and didnt really know if I needed something in the 100 or 150gph range with my mods... and or what else do I need to justify one or the other...

not to hijack the thread but since its on the same topic... Ive been looking for a lift pump set up and didnt really know if I needed something in the 100 or 150gph range with my mods... and or what else do I need to justify one or the other...
Have you looked at the ppe pump? its 160gph

Have you looked at the ppe pump? its 160gph
no... do i need that many gph?

no... do i need that many gph?
No, you don't, but id rather have 500 horse and have a set of pumps that can handel 700horse, than being the opposite.

Will be installing an Airdog 150 this weekend. Saw the stock pureflow pickup was kinda cheesy so I opted for Kennedys billet fuel pickup and LB7 sender unit upgrade. One question for guys that have done this, will the fuel supply from the Airdog be plumbed back to the hard line just in front of the tank or do you run 1/2" flex line all the way to the OEM fuel filter? Only area I wasnt completely clear on.
It ties in the OEM line between your tank and cooler. I was wondering that same thing when I was reading the instructions.

Kennedy pump/filter combo here. Should be the first thing you do to the truck...

Does the Kennedy pump/filter combo hang below the bed of the truck? Anyone have pictures of this kit installed? Seems like a lot of guys just run his pumps.

I'm about to buy his twin pump kit and I can't decide on the pump/filter combo or just getting the pump and then adding a filter. I know John prefers the pump and mega filter combo. Problem is I'm about to install a Banks super scoop and it will probably interfere with the Mega filter kit.

Does the Kennedy pump/filter combo hang below the bed of the truck? Anyone have pictures of this kit installed? Seems like a lot of guys just run his pumps.

I'm about to buy his twin pump kit and I can't decide on the pump/filter combo or just getting the pump and then adding a filter. I know John prefers the pump and mega filter combo. Problem is I'm about to install a Banks super scoop and it will probably interfere with the Mega filter kit.
I had the super scoop. waste of money IMO. i drove from chandler to tuscon when it was hot here, and it poored. my filter was damp, screw that.
Anyway, thats why i ran his twin pumps, and then added the nicktane kit from nick.

To prevent getting douched with fuel when removing fuel lines on frame, first remove rubber hose at inlet to OEM Fuel Filter, insert air nozzle connected to compressor, and blow fuel back into tank. This also prevents siphening your tank dry.
If you remove fuel tank filler cap, you'll hear bubbling in tank.

That's good advice.:ro)

I had the super scoop. waste of money IMO. i drove from chandler to tuscon when it was hot here, and it poored. my filter was damp, screw that.
Anyway, thats why i ran his twin pumps, and then added the nicktane kit from nick.

Yea I'm starting to rethink the scoop. I doubt it will fit anyway w/ my tires. I think I'll just get the pumps for know and decide on a filter later.

Seems like Kennedy's and TTS twin pump set-up is about the same. At the time I bought TTS was a bit cheaper, I don't know if that's still the case. I like the fact that the second pump doesn't kick in until you are really putting the power to it. I went with an after maket filter set up that is slightly canted inside the frame rail to keep inside the frame. Very quiet, have never even heard them don't even know they are working unless you look at the fuel pressure gauge.

Yea I'm starting to rethink the scoop. I doubt it will fit anyway w/ my tires. I think I'll just get the pumps for know and decide on a filter later.

I don't know if you were planning on running the Mega Filter but you might have clearance issues with it with your tires as well.

I don't know if you were planning on running the Mega Filter but you might have clearance issues with it with your tires as well.

I now realize I can't do the Mega with a Banks intake since you remove the intake tray with the Banks. Thanks for the heads up. I've got the Kennedy twins on the way though:D Anyone have a filter set up that filters air also like the Air Dog?

I thought the mega filter was between the pumps mounted on the frame rail with them. At least that's what is on there site.

Yes that is a mega filter, but what everyone on here calls the "mega" goes under the airbox. Both systems use the same fuel filter.

For pumps, I prefer to run mine continuous. There is no negative to doing this, plus the psi is always there and consistent. Starting these pumps takes time to get them spinning. They have sort of a "soft start" built in.

My original Mega filter mounts under the air box tray. This is my preferred location. I also have what I call the Universal Mega (yeh I know I probably should have come up with a new name) that mounts back on the frame rail and is a stand alone product OR part of a modular pump/filter combo. Due to height restrictions, we use a shorter element on these. The big red Mega elements WIL fit this head with the proper post installed, but the drain is just a shade below the frame. This is still well over a foot off the ground, and in no real danger, but I figured if I front lined this product people would sqwawk about it so it's an option for those who understand it.


I prefer the twin pumps on the frame rail and the Original Mega under the air box tray.

So you think the mega filter just sitts to low when mounted to the rails

So you think the mega filter just sitts to low when mounted to the rails

I don't think it's to low, but Like I said we went with the shorter filter because I knew if I suggested the long one, I'd get raspberries. I'd prefer the end user to make a conscious decision that this would not be an issue in his/her situation.



As for my pumps vs theirs:

I could add a glorified bypass regulator and call my setup an air separator playing off peoples fear of air, but my experience shows that once we put the fuel under pressure it does not release/vaporize in the lines any more.

A simple example of this is to cut open a 3k mile filter from a truck with no lift pump. It will be shading black from the bottom up and may have streaks down the side. This is because there is a LOT of air in the OE filter housing. Add a lift pump setup (I don't care who's) and the filter will come out a uniform shade of gray top to bottom as the filter is now full of fuel and using the entire surface area of the media and a much lower flow rate per square inch.

The Dmax does not seem to mind the air in the fuel. Where air is a real issue is on a mechanical fuel system that uses "pop" pressure to open the injectors like teh Cummins 12v. Having air in these will cause a cushioning effect which can cause retarded timing etc.

AirDog......Im running one of ya`ll 150 pumps. I have a few questions. From what I understand is the water separtor is a life time filter and how many miles do you recommend running the fuel filter?

Inserted in the quote above.
That could be comeback line of the year John:D.

Fellas, sorry to butcher your thread... but I've deleted AirDog's posts and those posts that quoted him as he is not a supporting vendor.

Fellas, sorry to butcher your thread... but I've deleted AirDog's posts and those posts that quoted him as he is not a supporting vendor.
O well....I guess if ya dont pay, ya dont get to play.:rolleyes:

KD pumps all the way! I have the twins w/ the filter on the rail. I have not replaced the fuel filter at the pumps since install a year and a half ago. I have ran the same filter(factory) since last summer at the start of truck pulling. I just replaced the stock filter and i'm still over 8psi w/ both pumps running and 3 1/2 inches with the pumps of.

So think about it. 2 stock fuel filters a year. And i will get at least 2 years out of the KD filter. This truck only sees about 20,000 to 25,000 miles a year. I's better than replacing filter every 6,000 miles.

Should of left the post IMO they did nothing but hurt Airdog. I've never heard anything bad about Kennedys pumps and thats what I will run when its time.

Comparing an AirDog to Kennedy pumps, is like comparing apples to oranges. A filtration unit that removes all air compared to pumps only. Kennedy pumps are more compared to the Raptor product. Kennedy pump has none of the features an AirDog does other than its an after market fuel pump. Not saying the Kennedy is a bad pump at all. Just nothing alike.

Should of left the post IMO they did nothing but hurt Airdog. I've never heard anything bad about Kennedys pumps and thats what I will run when its time.


Maybe you need to open your eyes. NEVER was anything said about it being better than a Kennedy or that a Kennedy pump was bad. I said they are 2 totally different pumps is all. Dont get it twisted up that I was bashing Kennedy cause I wasnt pal! And the EXACT same post is listed above.

Maybe you need to open your eyes. NEVER was anything said about it being better than a Kennedy or that a Kennedy pump was bad. I said they are 2 totally different pumps is all. Dont get it twisted up that I was bashing Kennedy cause I wasnt pal! And the EXACT same post is listed above.
"I" said ?? and "I" was ??

I love my Kennedy pumps! So quiet and haven't failed me yet! I know a few guys running them everyone seems to be happy with em! I suggest Kennedy.

"I" said ?? and "I" was ??
Airdog maybe?:eek::badidea::deal: ban him

I'm leaning toward the KD twin pumps but also considering the Raptor. Has anyone had any issues with the Raptor? Also is the Raptor flow through?

I Heard they are loud

is the ppe loud?

Russ, I have dual lift pumps similar to Kennedys ( TTS) can Let ya look at them installed if you like since your local.

I have AirDog Fp150 and it cannot be heard with the engine running. It is flow thru and the tank draw tube is more intimidating than it is to do! Looks hard, but is real easy. I personally like my AirDog, a little pricey, yes, but well worth every cent!

Just my opinion.

This is the setup I run with the billet pickup installed in the tank. It doesn't get much easier than this with the Kennedy wiring harness. The Ultimate Combo does not hang below the frame rail.

FYI. This is not my setup-just a picture I found of what I have!

Dix

This is the setup I run with the billet pickup installed in the tank. It doesn't get much easier than this with the Kennedy wiring harness. The Ultimate Combo does not hang below the frame rail.

FYI. This is not my setup-just a picture I found of what I have!

Dix

I like that setup, just a little to pricey for me.. How much hp are the KD twin pumps good to?

I don't think it's to low, but Like I said we went with the shorter filter because I knew if I suggested the long one, I'd get raspberries. I'd prefer the end user to make a conscious decision that this would not be an issue in his/her situation.

As for my pumps vs theirs:

I could add a glorified bypass regulator and call my setup an air separator playing off peoples fear of air, but my experience shows that once we put the fuel under pressure it does not release/vaporize in the lines any more.

A simple example of this is to cut open a 3k mile filter from a truck with no lift pump. It will be shading black from the bottom up and may have streaks down the side. This is because there is a LOT of air in the OE filter housing. Add a lift pump setup (I don't care who's) and the filter will come out a uniform shade of gray top to bottom as the filter is now full of fuel and using the entire surface area of the media and a much lower flow rate per square inch.

The Dmax does not seem to mind the air in the fuel. Where air is a real issue is on a mechanical fuel system that uses "pop" pressure to open the injectors like teh Cummins 12v. Having air in these will cause a cushioning effect which can cause retarded timing etc.

This is the info that I've been wanting concerning the difference between fass/airdog (wether or not the separation is really needed) and KD/TTS with an addl filter. I have just about made up my mind on what I want. The current price on an AD is pretty hard to beat though.

JD4440, there's a good chance I'll be needing tech support! :D

I'm runnin the Airdog 150 without the tank draw tube and without a billet pickup and I still managed 820rwhp. I'd go with the Airdog!

I'm runnin the Airdog 150 without the tank draw tube and without a billet pickup and I still managed 820rwhp. I'd go with the Airdog!
820.....Is that thing stock. ;) Nice numbers. Wish I knew it really wasnt needed before I put the straw in.

i installed the Kennedy twins on a LLY. easy to install and they worked great. the guy called me yesterday and said one was burned out and he called kennedy and he is replacing it free of charge. doesnt even want the old one back i guess

This is the info that I've been wanting concerning the difference between fass/airdog (wether or not the separation is really needed) and KD/TTS with an addl filter. I have just about made up my mind on what I want. The current price on an AD is pretty hard to beat though.

JD4440, there's a good chance I'll be needing tech support! :D

I do offer install support :)

820.....Is that thing stock. ;) Nice numbers. Wish I knew it really wasnt needed before I put the straw in.
Me too. That's the only part of the install I didn't like. Airdog wiring was a breeze compared to my TTS.

Me too. That's the only part of the install I didn't like. Airdog wiring was a breeze compared to my TTS.
Yeah wiring was a breeze. Just dont understand why it was so long?

Motorhome application ?? (wire it into the motorhomes fusebox that's towing the truck maybe ??)

JD had me intimidated with the draw tube, but now that I have do it myself, it wasnt all that bad. I have a install writeup in the DIY section of the site. Hope to edit in pics later tonight! Enjoy that FP150, lord knows I do.

I could add a glorified bypass regulator and call my setup an air separator playing off peoples fear of air, but my experience shows that once we put the fuel under pressure it does not release/vaporize in the lines any more.

A simple example of this is to cut open a 3k mile filter from a truck with no lift pump. It will be shading black from the bottom up and may have streaks down the side. This is because there is a LOT of air in the OE filter housing. Add a lift pump setup (I don't care who's) and the filter will come out a uniform shade of gray top to bottom as the filter is now full of fuel and using the entire surface area of the media and a much lower flow rate per square inch.

Agreed. Keeping the fuel under positive pressure keeps air bubbles small, compressed within the fuel. The stock system has the OEM FF operating under vacuum, which draws air out of fuel and allows it to collect.
Baldwin info below, states that a FF operating under vacuum is only partially full of fuel on dirty side of filter, and the clean side is solid with fuel. This is shown as John said, as any filter element in an OEM system is black only on bottem 1/3 of element, and below the inlet.
Installing a lift pump keeps the FF completely full of fuel, utilizing 100% of the filter element, which allows fuel to flow through filter media slower, which usually improves efficancy.

http://www.baldwinfilter.com/literature/english/10%20TSB's/94-6R2.pdf

i installed the Kennedy twins on a LLY. easy to install and they worked great. the guy called me yesterday and said one was burned out and he called kennedy and he is replacing it free of charge. doesnt even want the old one back i guess

Actually we will be needing the old one back for warranty consideration. I haven't rejected one yet so long as there's no physical damage.

Looks like the AirDog got some good reviews. If I were to choose thats what I would go with.

I installed one of Kennedy's pumps before they actually went on sale and were copied to a less quality degree by TTS. I originally installed it on my LB7, removed it when that truck was wrecked and installed it on my LBZ. I have somewhere in the neighborhood of 160,000 mi. on that pump and it continues to deliver 4 psi every time I turn the key. Awesome pumps!

4psi? I guess if you are running a stock trans that would be good, but I was looking to get full potential of both the engine and trans. Now I have it, fuel, air and tuning by Nick, this truck is alive now!

Guess I should have added that I'm running a single.

JD had me intimidated with the draw tube, but now that I have do it myself, it wasnt all that bad. I have a install writeup in the DIY section of the site. Hope to edit in pics later tonight! Enjoy that FP150, lord knows I do.

Didn't mean to scare ya' I just didn't like having to cut a hole in the tank.

Well my fiance made up my mind for me on the air dog or twins and she got me the kennedy twins for me for valentines day!!

I'm leaning toward the KD twin pumps but also considering the Raptor. Has anyone had any issues with the Raptor? Also is the Raptor flow through?
I have the Raptor, good pump not loud at all. I was leaning towards John's pump set up but went with the Raptor just because of price. With my 2-filter set up the Raptor IS NOT FLOW THROUGH. Never tried it with just the oem filter. Maybe should have spent the extra cash and bought John's set up.

I'm runnin the Airdog 150 without the tank draw tube and without a billet pickup and I still managed 820rwhp. I'd go with the Airdog!

So you didn't install the AD pickup tube? How did you hook the pickup line up? Just to the factory location?