Plumbing my nitrous kit

I'm trying to work out how I'm going to plumb up the fuel supply to my nitrous kit and I had an idea that I thought that I'd run by you guys. The fuel supply for my motor consists of an Aeromotive A1000 pump to a 13204 2 port reg with bypass. One port will obviously feed the carby, and I thought that the other could feed the fuel solenoid for the nitrous kit. I have been told that it is best to have separate supplies but I'm pretty sure that the pump is big enough to feed both. The major part of the question though is, does it work to have a regulator inline after another regulator? The nitrous kit supposedly has to run at 6 psi but I'm not sure what pressure the carby is going to want. (motor is in the build stage) If there is a differential, running one pressure will not work. Will the second reg be OK to deadhead or will it want a return, and if it does, can I "T" into the main return line?

Or am I on the wrong track, does everybody have a separate fuel cell, pump and reg for their nitrous?

i run a single pump to multiple regulators and i do run a small .16 jet off the 2nd regulator so it doesnt dead head

1 pump for both regs.....some say it's dangerous but it's enough pressure supply for both in my opinion

1Bad91 wrote:1 pump for both regs.....some say it's dangerous but it's enough pressure supply for both in my opinion

If it's good enough for the pro nitrous guys in the ADRL I'm sure it's good enough here.

Run a seperate regulator for the nitrous side, youll be happy you did.

Barney wrote:Run a seperate regulator for the nitrous side, youll be happy you did.

yes you should add another reg for the nos

we used the holley regs for nitrous with a small return and magnafuel for the motor. the holley regs had much better repeatability but I'm sure the nitrous pros here will chime in on that.

1 good pump and 2 reg. and you will be able tune that monster.part# reg.12-803

part# reg.12-803

I noticed that the reg you suggested has no provision for a return, do you deadhead yours?

The guys that do use a return on your nitrous supply fuel line, do you run it all the way back to the tank or "T" into the main return for the motor fuel supply?

i run mine right back to the tank #4 line

Beast wrote:

part# reg.12-803

I noticed that the reg you suggested has no provision for a return, do you deadhead yours?

The guys that do use a return on your nitrous supply fuel line, do you run it all the way back to the tank or "T" into the main return for the motor fuel supply?

i don't use return

From what I understand from the SJ camp is that the return style has a more consistant fuel delivery that the deadhead style. The class champion in our main organization runs a Bennet 434 sbf with a SJ fogger and runs 5.0's at 3000lbs with the return style setup. He tells me that he makes so much more power now because it's not pig rich on the hit that is the reason he picked up so much. He runs the 29.5 tire and sixty foots like a 1.16 now. before he could never hit the tires as hard because it was rich and would lean out throughout the run.

If it make you feel better run a return but i think it a waste of money.



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I wouldn't worry about the creep either.. It gives the fual a little boost to fill the jet and bars and by the time it's done this it's at the set pressure.. SJ
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oney.

I don't use SJ but have seen the results of his customers. All I know is some fast cars in my organization run what he says to run and they have return style fuel systems.

I don't know whatbumper but alot of people say it a waste and other say it no just one of those things.I not saying it a bad thing by running a return it just not my cup of tea.

well, I'm with you with not seeing the need for most people. I didn't run a return when I ran nitrous but also ran that "slow" square jetted setup that ran 5.40's on a 200 shot with a sbf at 3250lbs in west Texas.

whatbumper wrote:well, I'm with you with not seeing the need for most people. I didn't run a return when I ran nitrous but also ran that "slow" square jetted setup that ran 5.40's on a 200 shot with a sbf at 3250lbs in west Texas.

damn ...i need that "slow" tune up

bruno wrote:

whatbumper wrote:well, I'm with you with not seeing the need for most people. I didn't run a return when I ran nitrous but also ran that "slow" square jetted setup that ran 5.40's on a 200 shot with a sbf at 3250lbs in west Texas.

damn ...i need that "slow" tune up

I was referring to SJ's comments on square jetting that he made on here a while back.

This could go into a whose bigger but the class i run 28x10.5 no Ws and small block with single kit no progressive stock suspenson 2950lbs and the low et guy is on a magnafuel 500 pump with fuel rail and two holley 12-803 deadheads and runs 5.12 @137mph. "Dont waste the money on a return line" the fuel pressure does not spike up as much as you would think i have looked at it on a data logger and when you come off the transbrake and the throttle is wide open and then the nos fuel selonoids open the pressure drops as the demand for motor and nos fuel selonoid rises and then the pump recovers but this is all in the matter of hundredths of a seconds. after that your all in anyway and pressure should remain pretty steady with a good pump.

just my .02

I have seen those times before and agree about the deadhead type system. Guy with us runs 5.teens in DFW and when he came out and ran with us in west Texas all he could muster was a 30. That 7500' of corrected air is killer.

just don't forget the K.I.S.S. method. thats my opinion.

K.I.S.S feel me in bumper

bigjohn2007 wrote:K.I.S.S feel me in bumper

Keep
It
Simple
Stupid

I think that when I start to over think and over plan things.

whatbumper wrote:

bigjohn2007 wrote:K.I.S.S feel me in bumper

Keep
It
Simple
Stupid

I think that when I start to over think and over plan things.

don't feel BAD i do the samething

Beast wrote:The major part of the question though is, does it work to have a regulator inline after another regulator?

I wouldn't do this imo. I would run the return regulator for the carb only and split off the main feed line before the regulator to a Holley regulator. Regulating the fuel twice doesnt seem like a great idea. I do run my dads truck from a single pump and run the carb and nitrous off the same regulator but thats not the best way either because the only way to really lean it out is to replace the fuel jets and thats more costly and than lowering fuel pressure. It works though and its not a race truck just a cruiser that runs at the track.

Call Brett @ Aeromotive. I am in the middle of ordering my complete fuel system from them. Very knowledable when it comes to Fuel Systems. I am running a bypass system for my carbs. and a deadhead system for the nitriuos system. It may be a little more expensive now, but alot less headaches down the road.