seeing as how many of us are exceeding 500whp and the limits of our stock fuel setup and im personally doing some upgrades presently, i was going to see how many people might actually be interested in a fueling kit for there car.
1: supply the fittings and -8 stainless braided line from the stock fuel filter to the fuel rail
2: supply the fittings and -8 stainless braided line/-8 fuel filter/external pump/relay and everything to make it a bolt on affair
Id be interested in the first option for sure! Only thing Im unsure of is what to do about a rail. I have a spare rail Im doing some modding to to accept AN fittings, not sure if I can make it work without welding but Ill post some pics up soon
for the fuel rail i was going to go with a thread -> jic fitting for the fuel line
i will be selling my fuel line off of my car once i get my new setup on which consists of the fitting to connect to the stock fuel line near the firewall and go to the fuel rail
but the setup im talking about for others/myself would be for a upgraded line from the tank to the fuel rail
I'm wondering how much of a difference this will make (from the filter forward, since the supply from the intank is still stock)?
FU Tuning
well considering fetter had to use larger lines in order to get a proper AFR id say its needed when you get up there in power.
basically.. the stock fuel system blows. if you want big power, you're gonna want a system that gm didn't design for 150 horsepower.
180hp in 1989 or 145hp in 2002, you decide. >
z yaaaa wrote:well considering fetter had to use larger lines in order to get a proper AFR id say its needed when you get up there in power.
basically.. the stock fuel system blows. if you want big power, you're gonna want a system that gm didn't design for 150 horsepower.
Didn't he also add a booster pump also?
FU Tuning
Gotcha LAFNGAS, Im nowhere needing an external pump and entire larger feed/filter. I just plan to do an 8an feed with an-gm fitting adapter, then just not sure about the rail. May mod the stock rail and get an adapter to run an afpr and 8an feed.
I believe theres a few guys running larger fuel lines without a booster pump.
yeah,
for the one setup i was saying add a fitting off the stock fuel filter to the -8 line and then go -8 to the fuel rail. that would allow the volume to be there and should be able to keep the fueling up
fetter added an external pump, i talked with him and have the same setup (pump and such) and im going that route but while im under and getting everything together i can go and keep tabs on the parts/part #'s and recreate the setup for others if need be, just seeing if there was any interest.
the first setup would be a straight bolt on affair and done with a hoist pretty quickly say 1 hourish
the second setup would be a bit more involved as there is wiring/relays involved but i could setup a diagram and when sending the parts out have them already preinstalled if possible thus saving time
LAFNGAS wrote:yeah,
for the one setup i was saying add a fitting off the stock fuel filter to the -8 line and then go -8 to the fuel rail. that would allow the volume to be there and should be able to keep the fueling up
Liquid is incompressible, you wont show any gains from this. The volume will be there, yes, but there is no expansion bladder on our fuel systems so the volume will not help hold any line pressure. It will be useless. The only benefits will be reduction in line velocity, but that still will only give you reduced friction. Which wont amount to much, and definitely not worth the cost.
LAFNGAS wrote:
fetter added an external pump, i talked with him and have the same setup (pump and such) and im going that route but while im under and getting everything together i can go and keep tabs on the parts/part #'s and recreate the setup for others if need be, just seeing if there was any interest.
the first setup would be a straight bolt on affair and done with a hoist pretty quickly say 1 hourish
the second setup would be a bit more involved as there is wiring/relays involved but i could setup a diagram and when sending the parts out have them already preinstalled if possible thus saving time
If it's worth doing, it's worth doing right. Your second option is the only option that is worth investing in. Ideally you need to have the same line size from tank to rail.
Edited 1 time(s). Last edited Tuesday, June 01, 2010 9:49 PM
"Never argue with an idiot. They'll drag you down to their level, then beat you with experience!" -Anonymous
I don't need to be dead to donate my organ.
the setup that fetter setup has the stock size off the tank to an adapter fitting then to the external pump which then jumps to the upsized fuel line
the first option would be fine i believe if you already have an upgraded fuel pump like the racetronix in the tank. with the upsized feed line you should be able to maintain a higher volume of fuel to the rail and not run it dry like im currently doing.
LAFNGAS wrote:the setup that fetter setup has the stock size off the tank to an adapter fitting then to the external pump which then jumps to the upsized fuel line
the first option would be fine i believe if you already have an upgraded fuel pump like the racetronix in the tank. with the upsized feed line you should be able to maintain a higher volume of fuel to the rail and not run it dry like im currently doing.
Agreed, if you can run two pumps, one high volume low pressure in-tank to feed a higher pressure in-line with a larger line, I can see this working well. I must have missed the second pump, I thought you were just talking post factory filter up to the rail with -8an line and using factory in-tank pump.
"Never argue with an idiot. They'll drag you down to their level, then beat you with experience!" -Anonymous
I don't need to be dead to donate my organ.
well even with the upgraded pump in the tank and having the upsized feed line after the stock fuel pump, would that not offer any benefit at all for supply fuel?
Yes, if you upgrade both supply-line and pump, you will have gains. One without the other is more/less pointless. If you ran a good in-tank pump and ran good line, pump to rail, you will have nice gains in supply.
"Never argue with an idiot. They'll drag you down to their level, then beat you with experience!" -Anonymous
I don't need to be dead to donate my organ.
Waiting to see a Ass Whoopin wrote:I'm wondering how much of a difference this will make (from the filter forward, since the supply from the intank is still stock)?
When we upgraded our lines from stock to -8an with the racetronixs pump we went from 11.7 afr to under 10, with no changes in the computer. This is also using the stock fuel filter.
I'd be interested in the 1st option as long as it was indeed a completely bolt on setup.
Other wise its just as easy to buy your own individual pieces and do the extra install work.
I think option 1 would be a great compliment to buying the Racetronix pump and harness, thats about as bolt-on/ drop-in as you can get for us J peeps, add a prebuilt feed line from filter to the rail and your set. Done and ready to boost.
id be interested in option 1 to go with my racetronix as well
RIP JESSE GERARD.....Youll always be in my thoughts and prayers...
I'd be interested, depending on price obviously. I'll have to see if it's within budget for this year.
you caught my attention... prices?
got sent away to work, hoping to get home shortly and get this on the go.
sounds good..keep me posted
bringing this back up, I'll be needing a beefed up system for this year and option 1 would be perfect for my racetronix
I know this is an old thread, but I just picked up a Racetronix fuel pump and harness and I would be interested in the first option
Jason
99 Z24
LG0/LD9 for Life
10 Year Bash Veteren
I'm going to bump this as well. I'm shooting for 400whp and already having a racetronix pump and harness installed, I'm worried the stock feed line won't meet my fueling needs.
JUCNBST wrote:I'm going to bump this as well. I'm shooting for 400whp and already having a racetronix pump and harness installed, I'm worried the stock feed line won't meet my fueling needs.
ill let you know if the stock lines can handle it
In all honesty Vince I'd like to know before we get Ryan up here tune a few of us. I think I need to pm Speedracer and see what his car was on stock lines with his 400+ ld turbo.
