Procharger experts needed
#22
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Re: Procharger experts needed
I was wondering if the regulator was not working correctly it would never hold back more fuel.
My past experience with cars is either an electric pumps works or doesn't.
I will swap regulators from one motor to the other and see if the problem follows. Since the pressure is eractic at an idle I can check oh the hose.
My past experience with cars is either an electric pumps works or doesn't.
I will swap regulators from one motor to the other and see if the problem follows. Since the pressure is eractic at an idle I can check oh the hose.
#24
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Re: Procharger experts needed
Originally Posted by GPM
Smitty, they have several pumps available, I think you would want the 2025 it puts out about 950lbs per hour. You're only seeing 950hp but the blower is probably eating another 250. MuscleMotors.com had the best prices a while ago. Use the Weldon regulator, it's about $125 and it's all you will need. The smaller regulators can't bypass the fuel and the pressure jumps around. You can check out the flow charts at weldonracing.com.
#25
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Re: Procharger experts needed
Originally Posted by Turbojack
I got an aremotive eliminator fuel pump. Still red in color, same size just more volume than the AE1000. In second year with this & no problems yet.
#26
Re: Procharger experts needed
Originally Posted by articfriends
Gpm,i looked at the weldon pump,it looks impressive. How well does their regulator boost reference? This time on dyno Crockett set up motor with 40 psi base pressure and we boost reference the presure up to about 70-75 psi,some regulators only raise pressure 1 psi for every 1lb boost but i need one that is adjustable for about 3.5psi-4psi per lb boost,Thanks for any info,Smitty
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Re: Procharger experts needed
GPM, I was wondering same question about why 70 psi, but if I remember correctly with the intake he is using there is a problem in putting in bigger injectors.
As to what I have, 96lbs injectors, aprox +/- 1000 hp (never dynoed) With the areomotive regulator when it is boost refrenced the presssure goes up & down with vacuum or pressure so I set at 43lbs with engine off. Once started pressure goes down below 43, as boost come on it goes up 1 for 1, so at 10 lbs of boost running 53 lbs of pressure. If you are going to run 70 lbs of pressure you are going to need one hell of a pump to give you enough fuel for 900+ HP. If you look at areomotives web site they say the eliminator pump is good for 1600 HP - Naturally Aspirated & 1100 HP - forced air induction all because the pump will not pump as much fuel at the higher pressures.
As to what I have, 96lbs injectors, aprox +/- 1000 hp (never dynoed) With the areomotive regulator when it is boost refrenced the presssure goes up & down with vacuum or pressure so I set at 43lbs with engine off. Once started pressure goes down below 43, as boost come on it goes up 1 for 1, so at 10 lbs of boost running 53 lbs of pressure. If you are going to run 70 lbs of pressure you are going to need one hell of a pump to give you enough fuel for 900+ HP. If you look at areomotives web site they say the eliminator pump is good for 1600 HP - Naturally Aspirated & 1100 HP - forced air induction all because the pump will not pump as much fuel at the higher pressures.
#28
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Re: Procharger experts needed
Originally Posted by GPM
The regulator is 1 to 1, you should be running at least 43.5lbs at idle, that's where the injectors are rated. Why are you running 75lbs at top end, are your injectors to small?
#29
Re: Procharger experts needed
I guess you could run the 2025 from a relay and a boost switch, and if you ever upgrade the ECU you could add the regulator and be done. I tried several other brand pumps and regulators, none work as well as the Weldon. Why not turn the fuel pressure up and back the pulse width down.
Last edited by GPM; 06-20-2005 at 08:50 PM.
#30
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Re: Procharger experts needed
I clamped off my return line yesterday and ran it WOT for a short burst. The pump could not keep up with the pressure at WOT. Fuel pressure at an idle is real eratic also.
Looks like I need a new pump for the port motor. It also seems that Mercruiser has a newer version of the high pressure pump and cooler for the cool fuel system and you can't just replace the pump any more. I am having a hard time finding one in stock anywere.....
Looks like I need a new pump for the port motor. It also seems that Mercruiser has a newer version of the high pressure pump and cooler for the cool fuel system and you can't just replace the pump any more. I am having a hard time finding one in stock anywere.....