jimbo486

I've been thinking of piecing together a custom fuel system with a Raptor and filters rather than having an AD II pump with quick connect/disconnect fittings to worry about (which I hear is actually kind of a PITA from a friend of mine). Aside from that, I don't know if I feel comfortable with push-lock fittings or not. I know that all of the fittings can be replaced, of course. I wouldn't mind some stainless braided PTFE hose with all the proper fittings in favor of the rubber hose and its fittings. The reason I've considered a Raptor and separate filters is that they can be had for a little cheaper than an ADII. This is the filter setup I've considered with a Raptor.



I'm curious if anyone has any insight about the differences between the Raptor and the ADII pumps. The Raptor doesn't have a return where the ADII does. Is there an advantage to having a return line? Is there a disadvantage to not? If I understand correctly, the return on the ADII's is to return the aerated fuel to the tank, right? Also, will the Raptor 150 supply plenty of pressure and volume to the custom 12mm VE I'll be getting shortly? It was tuned to put out 263cc's at 2,000 engine RPM. Inlet pressure will need to be anywhere from 20-30psi. I also plan on an XDP fuel tank sump, which should arrive on my doorstep on Monday.

Any bits of information you can provide is appreciated!

93flatbed

As I understand it the return is in fact just to bleed off all of the air bubbles and the excessive pressure is just "recycled" threw the filter.

It looks as if the the raptor and AD2 have close to the same specs. So I suppose it all boils down to ease of installation and warranty. I do believe the AD carries a limited life time warranty, I don't know about the Raptor. I have one of the older AD165 and it's a bit loud at idle but can't hear it much past idle. It was a very easy install, you can search over on compd for used ones they pop up every once in a while.

Now if I had to do it all over again, my truck would have a belt driven pump going threw a filter setup like you have shown above. They can be had for close to the same price with an install kit, without obviously cheaper and if you want some stainless bling then you would need just the pump.........Plus once Y2K finally hits you could still run around while us guys with electric pumps will be stuck on the side of the road....LOL

Derek has one on his truck and he can't come close to using it all up and it's regulated down to 16psi for his poor little cp3's.

jimbo486

Upon further research, PureFlow says that the 150 pumps will supply enough fuel for up to 500hp and the 165's will supply up to 800hp.

Given that the VE Giles built makes 263cc's (275cc's = 500hp worth of fuel), I should probably play it safe and go with a ADII 165. Better to have more than enough than come up short.

Ahineman

I've got an Airdog 150 setup for a p pumper. (Just comes with a 35psi spring instead of whatever the VE one has)


It seems to keep up fine with my 12mm VE.

jimbo486

What circuit is a safe one to use for key-on power to the Airdog? I don't want to overload a circuit if it happens to be something else that may run simultaneously with the Airdog.

Ahineman

My truck doesn't have cruise, so I used that one. The Airdog wiring comes with a relay and you're only using the key hot to engage it so you shouldn't have any problems.

93flatbed

I used the FSS wire.

jimbo486

My truck doesn't have cruise either. Where is the wire you tapped into, Ahineman?

Ahineman

It comes with an inline fuse holder that plugs into your fuse box. Very easy. Took out the fuse for the cruise and plugged it in.



On edit:

Found a pic online of the fuse holder. I could have went out and took a pic of mine, but this was faster.

http://i99.photobucket.com/albums/l2...886ccd13aa.jpg

jimbo486

I've got one of those already but not the mini, of course. I'll have to check my fuse block and find the cruise control power.

dieselJon

The Raptor is just an AD pump, without the filters built in.

I would use a relay being switched by the FSS.

jimbo486

I know the pumps are identical. The only differences are flow amounts and a return line.

A relay switched by the FSS sounds like better idea. I've got a toggle switch spliced into that circuit already. It would help to take some of the load off of the switch itself.

Ahineman

Jon, the Airdog comes with a relay. The Raptor probably does too. No need to buy one. It really doesn't matter what key hot that anyone uses. That's the whole point of the relay. You're just using it for control voltage to the relay. The power to run the pump gets wired directly from the battery.

jimbo486

Yeah, that's right. The fuse tap is already wired to their relay. I'd just have to swap it out for a standard size fuse.

jimbo486

This info is actually not entirely correct. I must have skipped over some words while reading.

AirDog and AirDog II 100 units are recommended for up to 500 horsepower.

AirDog 150 and AirDog II 165 units are recommended for horsepower up to 800.