LS1rscamaro

iTrader: (2)

just as the topic says. whats the best on line fuel pump

Matt@HSW

iTrader: (14)

When you say on line do you mean in line? If so, IMO you'd be better doing an intake one.

Matt

LS1rscamaro

iTrader: (2)

yeah i ment in line sorry guys. well i already have a in line that i smoked and i just wonderin because i am doing a ls1 third gen swap . any one have a idea?

onfire

iTrader: (17)

Walbro in line.

twoduners11

iTrader: (8)

the walbro 255 is only like $110 (ebay) http://cgi.ebay.com/ebaymotors/Walbr...spagenameZWDVW
and its even a sponsor (full throttle) so this post shouldnt be deleted
good luck
mark

1ScrudeDude

Will the inline fail to deliver? I am going with a Walbro inline too. I can't afford to pay the labor for an intank set up.

I will be ~510rwhp with the NX Kit hit. I hope it will be enough.

Anyone know of anyone who lost a motor because if an inline pump gone bad?

Matt@HSW

iTrader: (14)

It's not the best way of doing things. Look at it this way, how can it supply more volume when there is a restriction in front of it (the stock in tank pump)? The in line pump is not going to be able to pump any more then the in tank pump. The in tank Racetronix pump kits are pretty easy to install and will work perfectly for your application. I know they are a bit more, but you already have a good amount tied up in your car, why risk it now?

Matt

1ScrudeDude

Yup, I'm rethinking the concept now. Thanks.

(Leaves to go price out intank pumps!)

Full Throttle

Just remember this . A pumps ability to pump volume is dependant on pressure. Lower presure = higher volume. When you add an inline pump and put a gauge between them you will find that there is far less pressure between the pumps that after the inline pump so the "system ability" goes up a good amount add a hotwire kit to the stock pump and it will be even better. A good intank pump is better but not much. All intank pumps currently available are Walbro either GSS340, GSS341, or F2000169 which are all the same pump with slightly different inlet and outlets. The jet pump in the take needs to be run by taking a small amount of the pumps output and sending to that to suck out the last few gallon of gas. some do this by installing a nipple in the top of the pump and some by putting a "T" in the outlet of the pump to connect the small line to.
Mike

redmist

I use an inline high volume low pressure pump from a dual outlet sumped tank to supply a high pressure pump

Racetronix

iTrader: (2)

An in-line pump for the F99+ modules is not the best solution as it can cause problems with the fuel system's functionality. Although our in-tank system is a bit more work to install than an in-line pump it would be well worth the time investment.

bernard shortt

iTrader: (1)

racetronic s works good and u can still use your stock wiring ,

ls1290

iTrader: (20)

What about using an inline pump with your setup? I have heard your pump is good to about 700ish rwhp.

Keith

Wet 1

iTrader: (4)

700ish? Not from what I've seen...

Matt@HSW

iTrader: (14)

Depends on the application (NA/FI/N2O). We've taken heads/cam cars with decent size shots to a little past 650 RWHP. That was using a single pump Racetronix kit with a fuel rail mounted fuel pressure regulator and a return line.

Matt

Racetronix

iTrader: (2)

We don't recommend adding an in-line pump to the bucket system.
If you need more fuel than our single in-tank system can provide it is time to consider losing the bucket and going with another solution such as our DP in-tank system.

ls1290

iTrader: (20)

Do you have a C5 setup?

Keith

Racetronix

iTrader: (2)

Yes we do here:
http://www.racetronix.com/RX-C5-FPK-2.html

This system now includes the pump fully assembled in a new bucket with Racetronix upgraded in-tank wiring, flex-tube and both filters.

It is available through sponsoring dealers on this forum.

ls1290

iTrader: (20)

How much will this system support with and without a BAP?

Keith

Racetronix

iTrader: (2)

The HP support depends on whether your motor is NA or FI and whether or not it has a FMFPR (97/98).

Typical numbers based on adequate fuel volume assuming stable regulation (BSFC dependant):
600RWHP NA w/o booster (13.5V)
700RWHP NA w/booster (17V)
550RWHP FI w/o booster (13.5V)
650RWHP FI w/booster (17V)

Some customers have exceeded these numbers and some have fallen shy depending on their application. A 97/98 FMFPR system is highly recommended for all applications.