Originally Posted by mican
Brian here is all the info I have on the motor, 502, 814 HP on dyno, solid roller lunati cam, Lunati rods and pistons, Roslen 400 turbo, 6000 stall, 9"w/488s, Fiberglass third generation Camaro body weighs 2471 lbs with me in the car! I bought this car complete so anything said we will just have to wait and see, right now I am in the process of putting in an all new MSD ignition system. When I get back to the fuel system I will double check that pump but I have to pull the rear bumper section to get to it! This is my winter project. I also saw on Pro Systems web site an alcohol carb with a regulator where you run a vacuum back to the regulator any thoughts on that! Thanks Mike
814 hp you gonna need more pump than a holley blue for sure...there are many to choose from..i am fond of 2 pumps in this order #1- MAGNAFUEL PROSTAR 500...I buy the pump only and go with a systems 1 12 inch inline billet filter for space ( order it with the #12 ends)...Be sure when you pick a filter it is rated to handle the flow of the pump you buy..many people make the mistake up beefing up their pumps and leaving a lower flow filter...( BAD MOVE).
#2- Aeromotive...i have heard some say the magnafuel 500 is over kill but i WOULD ASSUME a person would want over kill in this area if anywhere..come up short and you got yoruself a burn't motor....Plus you have room to grow with this type pump will allow in future for :..Bigger motor,will run and support alcohol or gas,you can run the motor and nos off the pump..it puts out enough to handle both..will also feed that surge tank no problems
so yes its a little pricy but the way i look at it your gonna spend a minimum of $250.00 for a decent pump.( not top of line) ..why not go ahead and spend $150.00 more and get a awesome ( top of line) pump..that has room to grow and very versitile...
as far as the vaccum line..yes some people do this and also make their own bleed valves in the regulator's..specially the NOS regulators..they do not want any fuel creep what-so-ever on the Nos..
if you run a good up-to date carb ..like the APD or Ruppert..etc...that has the external linkage with linked secondaries..you will not have to bother with the vaccum line..i do not run one on mine......if you run the surge tank and thats fine..the surge tank has a fuel bowl on the side of it..so you will be holding steay levels at the surge tank...the manual pump works off the demand of the crank...so i think you will have a cool little alcohol set up..with a healthy pump in the rear pushing the alcohol to the surge tank..the manual pumps are either working or their not...so you will have no worries here..
if i had my druthers on alcohol..it would be a front mounted cell with a mechancial pump...just cuts down on a lot of wasted motion ( so to speak)..but a surge is great for cars with little space..i ran one 6 years ago.
good luck- Brian