yes you could do that. it would change the $ investment considerably.
in a 00 the pumps are not 'drop in' even more so than 98's. look at the plastic tank pictures.. thats what you have. modding the tank to accept -8 and running that to the front is also not drop in and go. will require significant mods to the fuel system.
Thanks for rthe reply. I was concerned with adding other pieces to the system to make this work. I keep seeing "hobbs switch" in this thread. I wouldn't need that right? I am not running boost. I will eventually be running a 427 with a 250-300 shot. I saw a write up on the Nasty Fuel lines installation. It looked time consuming but not impossible. So, I guess what I am trying to say is could I put the pumps in run two of the harnesses and a -6 return and -8 feed and a regulator and everything work correctly. I figure my final setup should have about 720-780hp at the wheels. I would rather have plenty than not enough. I was looking at going the Aeromotive External pump route but that is $$$$$. Also, Racetronix says that these pumps function like stock pumps that is why I was saying a "simple drop in".
hustler- yes the great thing about the walbro is that they ARE OEM grade pumps so you can expect quiet operation and years of trouble free performance if installed correctly. A HOBBS switch is a pressure sensitive trigger. for nitrous you could use a wide open, or an rpm based trigger, or trigger the second pump to hit when the nitrous sprays. A relay is not picky what gives it the last ground or hot it needs. I personally would not run both pumps all the time, but some do and claim no negatives. This is what would be the case if you were to simply wire two Rx harnesses into the car.
Beaflag- I have never been under a 93 but i am almost positive the tank is the same, I hear the fuel line set up is different through.. but the wiring and what you do inside the tank should be identical.
Henny- On this car the fuel system mods other than injectors are totally captured in the pictorial. On my car I have a merge to -8 and a -8 bulkhead on top of the tank sender; Run -8 to one aftermarket rail, a -8 cross over, a -6 return to aftermarket regulator, then it hooks to the original factory pressure line as my return and goes back into the tank through it.
hustler- yes the great thing about the walbro is that they ARE OEM grade pumps so you can expect quiet operation and years of trouble free performance if installed correctly. A HOBBS switch is a pressure sensitive trigger. for nitrous you could use a wide open, or an rpm based trigger, or trigger the second pump to hit when the nitrous sprays. A relay is not picky what gives it the last ground or hot it needs. I personally would not run both pumps all the time, but some do and claim no negatives. This is what would be the case if you were to simply wire two Rx harnesses into the car.
Beaflag- I have never been under a 93 but i am almost positive the tank is the same, I hear the fuel line set up is different through.. but the wiring and what you do inside the tank should be identical.
Henny- On this car the fuel system mods other than injectors are totally captured in the pictorial. On my car I have a merge to -8 and a -8 bulkhead on top of the tank sender; Run -8 to one aftermarket rail, a -8 cross over, a -6 return to aftermarket regulator, then it hooks to the original factory pressure line as my return and goes back into the tank through it.
can this setup be used with a stock feed and a -6 return? my goals will be on a tc76.
Mightymouse, are you just adding another pump to the factory setup or does this setup have return lines and FPR upfront in the engine bay?? Might have over looked this, but not sure.. One other thing is there a part number for the relay you used??
thanks Andy
__________________ 00 Trans Am WS6 M6
Kooks 1 3/4 Hdrs Stepped To 1 7/8 Catted "y"/D-1 Procharger 8.5 lbs. Boost/60 lbs. Inj./Gt2-3 Cam/Subframe Conn/Strut Twr Brace/Hooker Catback/LS6 intake/9 inch w/373/Holley Fuel Pump/Spohn Torque Arm/Textralia Clutch New Master/Slave/Boost and Fuel Pressure Gauges/MSD Boost A Pump Racetronixs Hotwire 526 RWHP/510 RWTQ
30a automotive relay, in the electircal sections of any auto parts store, if you find a 40a you could certainly use that as well
on the red car pictured i just added a second pump and hobbs trigger. my car has a front mounted regulator
I know the 98 fuel pump assembly is diffrent, but do they still have a regulator like the 99-02 tanks?? If so would I be able to get away with just adding a second pump to my FI setup or would I have to install a front mount regulator?
Thanks Andy
__________________ 00 Trans Am WS6 M6
Kooks 1 3/4 Hdrs Stepped To 1 7/8 Catted "y"/D-1 Procharger 8.5 lbs. Boost/60 lbs. Inj./Gt2-3 Cam/Subframe Conn/Strut Twr Brace/Hooker Catback/LS6 intake/9 inch w/373/Holley Fuel Pump/Spohn Torque Arm/Textralia Clutch New Master/Slave/Boost and Fuel Pressure Gauges/MSD Boost A Pump Racetronixs Hotwire 526 RWHP/510 RWTQ
i have a 98 with racetronix race fuel kit on a boosted setup
is it possible to run a boost referenced FPR in front of the car in conjunction with the stock fuel regulator in the tank to up the fuel pressure to enhance the efficiency of one pump ??
if so, would i just cut the stock return line and tee it into there ?
Last edited by Project Dc2; 03-07-2008 at 11:08 AM..
-- 760 RWHP 761 RWTQ
