Thread:

gph requirements for dual 8082 dominators?

how many gph does it take to feed 2 dominators? putting them on a bds 8-71 ontop of a 9 to 1 540 . does anyone make a mechanical fuel pump that'll get the job done without a regulator?

superdave on these boards, he sells Clay Smith mech pumps, good guy price, you what the 1/2" high pressure pump. If you get it, take it apart and remove the inner spring. Yhat will lower the pressure enough that you don't need a reg. This is the pump EVERY SINGLE blown GN circle boat is useing except with the inner spring and a reg. If it can't keep up, you will have to put the spring back in and get a reg.

actually MR. Steel, I personally run 2 regs. One on each carb with a balance line between. He just asked for a recomment with out a reg and I thru in my two cents. On the other hand, you had to go and hit the poor guy with advanced calculis. PS how ya been, keeping busy?

Originally Posted by gn7

actually MR. Steel, I personally run 2 regs. One on each carb with a balance line between. He just asked for a recomment with out a reg and I thru in my two cents. On the other hand, you had to go and hit the poor guy with advanced calculis. PS how ya been, keeping busy?

you guys think this 1 will get r done?

http://store.summitracing.com/partde...5&autoview=sku

says shut off pressure is at 8-9psi

yes

Originally Posted by gn7

yes

thanx for the advise! order that holley p# thru my local autozone and got it for 113.95, no shipping be here tommorrow mornin

let me know how it works out, thinking of one those for another deal I am putting together Thanx

Originally Posted by gn7

let me know how it works out, thinking of one those for another deal I am putting together Thanx

will do, he's got a dash mounted fuel pressure gauge and we're gonna try to run it without a regulator at all. i can't see that pump pushing pressure past 4 hi volume needles and seats, but shit happens carb kits won't be here till next wed , so it'll be the weekend after this 1 before we get the boat wet.if it works out fine, we're tearing it all back apart and putting nitrous plates under the dominators putting a electric pump/seperate tank on that system

The flow graphs for there '170gph' rpm vs 0 pps vs 4.5psi are found here:
http://www.holley.com/BrowseCatalogs...olley&Page=127

I found making the viewer at 400% made it easier to read.

Hope this helps.

BTW: the previous page has charts for their 80,110,130 pumps.

thats great info to have CFM thanks for the post, really like the Ultra HP pump until I looked at the price OUCH! well the good shit costs $

Originally Posted by cfm

The flow graphs for there '170gph' rpm vs 0 pps vs 4.5psi are found here:
http://www.holley.com/BrowseCatalogs...olley&Page=127

I found making the viewer at 400% made it easier to read.

Hope this helps.

BTW: the previous page has charts for their 80,110,130 pumps.

done went and made me worried now so is the 170gph holley pump i linked to not gonna cut it?

you may not understand exactly what that chart is saying, but the main thing is that you do not want any restriction in the fuel system either in or out, fuel lines size and filter flow are very important. -10 inlet minimum, -8 oulet, minimum. Basically the chart says that if you are crui9zing along at 4000 and your gauge reads 6psi, the most the pump is moving is about 10-15 gph. When you stab it and the motor gets to 6500 and the gauge reads 4psi you are moving 150gph. Like Steel said, you need about 85 gph for a 1000hp, that leaves you with about 65 gph cushion. That pump will be just fine. We run about 5psi thru .110 and have zero problems