Skitzvk

Hey everyone i want to upgrade my fuel system

but im undecied witch pump to use

ive been told holley pumps are very noisey

then told carter pumps are quiet good vaule and work well

just looking for feeback back

my motor specs are

304 bored 40tho

flat top pistons

bottom end has been all balacned and blueprinted

roller rockers

l34 heads had some porting done on them

roll master timing chain

brock inlet manifold

reco quaddy

extractors

2/5 manderal exhaust

crow cam unsure of specs but been told around a stage 2-3 cam



any help would be great

JoeVK

You can go electric fuel pump but a L34 machanical pump will do.

Smitty2

yep

the Quaddie will luv that
or a late model (VK type) mech pump
fitted to the last of the black motors ..is a goodie too!
used by the Brockie boys doing up their HDTs

still available new genuine - M41683
ask ya dealer

moot

carter black,cheap.reliable,quiet and we use them on 550hp cars

JoeVK

moot

it sounds like you didnt have it through a relay or wasnt wired properly. all mine and mates cars (10+) have never had any troubles with noise or voltage drop.

a return style reg will cut noise down too

tag

Skitz

Your choice is pretty open for electric fuel pumps but also I always thought a good upgrade was increasing the size of the fuel line and the size of the pickup tube in the sender unit if your not already using a fuel cell or similiar size outlet eg. modified sump unit at the back of the fuel tank. Sometimes it's not just about the fuel pump but everything else in between as well.

BossHoggett

Very true

JoeVK

The VK came with an electric (in tank) fuel pump standard, therefore I used the factory wiring and relay that cuts the pump if the car stalls. Also, there is a return line from the carby to the tank.

Question:

1. What type of regulator do you use on the alternator?
2. Has anyone fitted the regulator near the tank and not in the engine bay?

Cheers

Skitzvk

so far thanks heaps for the feedback

i bought a torrie l34 pump from speedparts in hallam and the guy said its good for up to 400 hp ???

Smitty2

VKs with electric in tank pump as standard?

V8 with hot fuel handling option only
...not all VK V8 Commodores got the helper pump
in the tank (and the helper pump was never a feature on 6s ) EFI 6s got a hi pressure setup

hth

Smitty

Smitty2

...and more

the L34 style/late VK style mech pump
will keep a Quaddie full on 420hp engines..up to 7500


hth

Smitty

VL_Turbo30

I have gone carter and happy as... it is quieter than holley.

greenhj

i fitted a carter to a vk not long ago and was quite satisfied with it, a heap quieter than a holley blue, smaller and will likely outperform it too.

Depends on what you want to do, and how long to want to do it for.

Land speed records will obviously require a much bigger pump than a street car with more power.

JoeVK

VK built July 85, only had in the tank pump and block off at engine. Later on I added the L34 pump as it would run out of fuel sometimes in first gear. Then the intank pump died and the L34 pump drove the car to 13.5 @ 103.5mph at WSID.

Cheers, Joe