Fuel pump for 383
#1
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Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Fuel pump for 383
Okay guys, i just installed a new crate 383 into my project car, and i have everything ready but the fuel pump, iv read that you cant rune an electronic pump unless you have the regulator, and i dont think a mechanical one will fit with the bracket that i saved off the stock motor, im just wanting some feed back as to which kind of pump people like most, mechanical or electric, and how they managed to bypass the stock intank pump, thanks.
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Car: 71' Chevelle
Engine: 496ci 675HP Streetable!
Transmission: TH400 3500 Stall 9.5" Converter
Axle/Gears: 3.73
Re: Fuel pump for 383
Run a mechanical if its a street engine. Holley # 12-327-11 is a great in expensive pump.
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Car: 1989 RS,1991 Z28
Engine: TargetMaster 350, L98 350
Transmission: 700R4
Axle/Gears: 10 bolt posi 2.73s, and 3.23s
Re: Fuel pump for 383
if your running carb then definitely go mechanical.
less hassle, and easy to install.
youll have to drop the tank,take out the electric pump and make a pickup with a piece of fuel line and compressin fitting..
pretty easy
just my 2 cents
less hassle, and easy to install.
youll have to drop the tank,take out the electric pump and make a pickup with a piece of fuel line and compressin fitting..
pretty easy
just my 2 cents
#5
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Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Re: Fuel pump for 383
yes im runnin a carb, a 750 holley, and i was leaning towards mechanical, but im running the accesory bracket off the stock engine, so where i can keep then tensioner im running an ac bypass though, and no smog pump, only thing is i dont know if the pump would bolt up with that bracket, the part where the smog pump goes looks like it might be in the way? anybody try this before? stock brackets with a mechanical pump? and thanks for all the feed back.
#6
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Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Re: Fuel pump for 383
oh and i made a door in the trunk for my fuel pump, :P got tired of dropping the tank when the pump died on me.
#7
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Fuel pump for 383
For easy of installation ;some just replace the hi pressure TPI intank pump with the low pressure one from a CFI /TB car and use a non return carb regulator to adjust the pressure
Like a Holley #12-803
http://www.summitracing.com/parts/HLY-12-803/
As reg is non return type you no longer need the return line to tank
Like a Holley #12-803
http://www.summitracing.com/parts/HLY-12-803/
As reg is non return type you no longer need the return line to tank
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#8
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Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Re: Fuel pump for 383
yeah my car was a tbi it still has the stock pump in it, where would i place the regulator? on the return line from the pump? sorry i dont have much knowledge of this fuel injected stuff. and thats what i was reading from most of the threads i looked into, and i read you have to wire a switch to turn on the pump?
#9
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Fuel pump for 383
Stock computer and wiring will still run pump even if EFI no longer in place.
If ECM gone then you need a "key on "12V wire from Ign switch to existing fuel pump relay.
Turning the key on will make pump run.
#10
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Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Re: Fuel pump for 383
alright this is making more sense now, i apprecaite all the information. and i gutted all the plugs i wouldnt need in the engine bay, but i didnt cut any wires running from the ecm to the switch or pump so it should still work right? and when yal say return line regulator, you are referring to a regular fuel pressure regulator right?
#11
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Fuel pump for 383
Stock EFI reg is bypass type, has line back to tank which you no longer require;
some hi perf carb setups run a bypass reg as well
Depends on your requirements
Read
http://static.summitracing.com/globa...hly-12-802.pdf
#12
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Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Re: Fuel pump for 383
okay i understand now, so if im correct and if i havnt cut any wires i shouldnt have, all i do is buy the right regulator for my application hook it up, run my lines from the regulator, across to my stock line, and turn the key and i should have a work fuel system again?
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