can i use my in tank Walbro fuel pump with a external Walbro fuel pump at the same time
the one in te tank is only pushing 30 PSI ... not a lot ... almost gone
if not can i use the stcock fuel line that gos to the tank with my external fuel pump or i have to drill on the bothom of the tank and make my fuel line
thank
Why not just replace the in tank one? Unless you have some sort of surge tank, the external one will most likely pull more than the in tank one can supply.
As far as the plumbing goes, the stock supply line comes from the in tank pump, so whatever you hook to it is only going to get whatever the in tank pump is putting out. I really see no point in drilling any holes, since you need to empty and drop the tank anyways, so why not just replace the in tank one while it's off the car?
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Agreed ^^ please do not drill holes in your fuel tank unsafe and asking for trouble. Better off just replacing the factory unit. Might as well upgrade to a racetronix while your at it.
the racetonix is almost a bolt on to the stock on right
were can i get a racetronix W body pump
francis chartrand wrote:the racetonix is almost a bolt on to the stock on right
were can i get a racetronix W body pump
Yes, and you get it from Racetronix......
Yes. The harness below it is HIGHLY recommended. I went from 12:1afrs to 9:1afrs on the same tune WITH swapping the M62 to a Harrop.
Tinkles(KGM) wrote:Yes. The harness below it is HIGHLY recommended. I went from 12:1afrs to 9:1afrs on the same tune WITH swapping the M62 to a Harrop.
Hot damn, glad i picked one up! Do you still have stock lines to and from the fuel rail?
Yep, still on the stock lines. Just keep in mind that i was tuned in the lower 12:1 AFRs to maintain a 85% duty cycle. The 9:1 AFRs where on the higher end, but still that isnt a bad improvement. After we dialed the fuel back in with the Harrop i was down to a 75% IDC with the same injectors. I did also have 95k miles on the stock pump.
would you also have to purchase the harness or just the pump?
just switch for the racetronix pump made 50 psi stock harness for 2 min
and it not working good now only have 20psi can the fuel pump by bad or the fuel filter also my regulator
need help thanks
Check the lines to the actual pump in the tank...one is probably off.....or leaking.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Tinkles you used the W body pump? In my thread some said it is "slack" in the fuel cup but the LS1 pump has a sleeve that holds it securely. Thoughts?
PSN ID: Phatchance249
My F-body pump in my 99 tank is in a rubber cup. There is a little "movement", but it works fine.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
We finally figured out the low psi on the racetronics in my friends turbo ln2. We dropped the tank and pulled the module to find that the filter that goes over the inlet of the pump was being sucked up by the ractronix, after a few months of random saturdays here an there with testing fpr, fuel filters and everything we could think of it was just the supplied pump filter. Once we removed it and got the car going afr's were so rich in boost the car didn't want to run in boost at all it just was too rich....so i'd start there if your fuel filter and fpr are fine.
ok i will drop the tank one more time and chek the filter
ya it will work i have a walbro255 in tank and a bosh 040 in line they work fine volvo and ford were doing it for years
ok now the pump is fine 50 psi ideal
ideal 14.6 -14.8
cruising 14 - 14.6
now a 3500 rpm when the boost start to kick in it starting to lean allot 16 17 18 20
dont know the pressure at 4000 rpm
That's exactly what we were running into, try removing that pump filter and see if that fixes your issue.
No hole. Mine has been running just fine.
JUCNBST wrote:That's exactly what we were running into, try removing that pump filter and see if that fixes your issue.
So did you guys leave the filter off completely?
I have the racetronix installed like stock no issues.
FU Tuning
Yes we removed the filter completely on his car and it solved all our fueling issues, On my car I've left the intank.filter on my racetronix and all is well.
just remove the pump filter and put a new Racetronix pump don't change nothing at all double clip the hose
need a super teck
will go with a WALBRO OPEN CUP original set up
tired of putting the tank up and down
racetronix to me = C.A.C.A
