Have you guys considered rubber grommets between the mount bolts/bracket where it mounts to the frame?It works to keep noise down.Personally I wouldnt mount the pump to the leafs,too much movement,even with long hoses to give you slack.The motion will work harden your lines causing them to fail prematurely or cause your fittings to loosen up on a regular basis.Besides the pump will feel all the road shock/vibration that the tires see.That cant be good for the pump.They really should be hard mounted to the chassis.
Well, I have it all moved around and am now trying to mount it to the outside of the frame rail. It was just too close to the tank mounted on the inside, too difficult to get to and I was afraid it would be touching the tank periodically. Rubber grommets...good idea, and i happen to have all kinds of them just laying around...
It really works well.Just sandwich them between the bracket and the frame rail.You could even put them between the nuts and rail on the opposite side as well.(double insulation that way)
Yes, the trick is to have rubber on both sides of the bracket so the bolts don't transmit the vibration to the chassis. I got some slick rubber grommet style insulators from Ace hardware and they look like they will do the trick with my A1000. (These pumps are legendary for their noise.) I'm also mounting it way back on the rear valence behind the license plate.
...i mounted mine diff. than all of these... so i guess mine is wrong... (no pic.) i used ...Fatmat...to insulate mine... ......
Well, I figured I would bring this back up... Got mine mounted at the rear of the frame rail this morning. There are two holes there from something else, maybe old big bumpers, so the metal is double-thick right there. They sit pretty high, though. I made two brackets that drop the pump about 3", put rubber grommets on both sides of the bracket where it mounts to the frame, and took it for a test drive...COMPLETELY SILENT!!! It will move side to side a little, but you really have to force it. I also ended up putting 90* angles coming out of the pump to reduce the curve of the line and minimize kinking. Also, since the rubber grommets make it so that you really cannot completely torque down the nuts, I double-nutted them to keep them from backing off. I would take pictures but the 90*s are cheap brass fittings, and I am embarrassed to post them until I get AN fittings and braided line...
Pics are better than none. And what? my fittings are cheap ? Actually I used the cheapies to start and get everything put where I think I want. After I get a few miles on the car I will get the expensive stuff so I don't have to do it more times than necessary. Oh and 1 more thing...
OK!!! Here's a pic... But, the flash went off and it makes the nut look like it is almost hitting the frame rail and it also looks like the leaf spring will hit it...but it is not nearly as close as it looks. I can grab the pump and put pretty good pressure on it against the rubber bushings, and I can make the bolt touch the frame rail, but that kind of pressure would never occur during driving or racing...
I went electric because I didn't think the 110 gph mechanical I had was providing enough fuel for me on takeoff. Also, the mechanical aftermarket pump was quite big and nearly hit my oil filter, so taking it off and capping that hole freed up space under the hood. I would guess that electric pumps are just better at fuel delivery because most drag cars use them, if I am not mistaken. So do most new cars. Disadvantages would be difficulty finding a good mounting place, keeping the hum down, and the possibility of a shorted wire and losing the pump while driving (I haven't heard of this happening, but I guess it could).
I like the idea of cleaning up the engine comp. So what about the costs and these are not just for drag uses good for cruising machine also?
JEGS has the Holley Red 97gph freeflow for $105, Blue 110gph (the one I have) for $132, and Black 140gph for $160.
pump mount Hi - I want to move mine to the rear as well, but where are ya'll picking up the power source? Thanks
