Hard time Figuring out Max power out of Factory Fuel Rails!!!
11-08-2011, 10:07 AM
#1
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Hard time Figuring out Max power out of Factory Fuel Rails!!! Hey guys I'm pretty stumped about finding a thread using search on max power out of the Factory ls1 fuel rails!
I pretty much have Dual Walbro 255's feeding to a A-1000 Rising Rate 1:1 regulator with -8AN Lines going all the way to the front of the car and then a Quick disconnect fitting at the fuel rail which the -8AN fitting attaches.
I am using the factory LS1 fuel rail.
We are looking at making a max of 650-700rwhp on a 76mm Turbo.
What is the limit of the factory fuel rails?
We are concerned those small holes from the factory rail will cause a cylinder to go Lean as each rail on each bank does not have its own dedicated fuel supply.
Help please!!!!
If I could use the factory rails I could save TONS of money.
Thanks!!!
I pretty much have Dual Walbro 255's feeding to a A-1000 Rising Rate 1:1 regulator with -8AN Lines going all the way to the front of the car and then a Quick disconnect fitting at the fuel rail which the -8AN fitting attaches.
I am using the factory LS1 fuel rail.
We are looking at making a max of 650-700rwhp on a 76mm Turbo.
What is the limit of the factory fuel rails?
We are concerned those small holes from the factory rail will cause a cylinder to go Lean as each rail on each bank does not have its own dedicated fuel supply.
Help please!!!!
If I could use the factory rails I could save TONS of money.
Thanks!!!
11-08-2011, 10:28 AM
#2
https://ls1tech.com/forums/fueling-i...uel-rails.html
I haven't finished my setup so I don't have any first hand experience. I'm still moving forward as planned with the V6 lines though.
I've been searching for HP limits on stock LS1 rails + stock 3/8" feed line for a while... my plan is simply to use OEM V6 f-body feed and return lines eliminating the tee-block/return setup in the back, and with a fuel pressure regulator immediately after the rail while losing the OEM regulator in the tank.
Here are some threads/posts I saved that convinced (and continue to remind me) the aftermarket is pretty much a big waste of my money when it comes to my humble 700-800 RWHP goal:
I don't know if its in any of the links above, but I read the only reason high HP cars came with or needed super-thick feed lines and girthy rails is because they had the fuel pumps mounted in the front of the car and ran lower fuel pressure. Hopefully someone else can chime in with more info and physics to prove or disprove this.
Here are some threads/posts I saved that convinced (and continue to remind me) the aftermarket is pretty much a big waste of my money when it comes to my humble 700-800 RWHP goal:
- https://ls1tech.com/forums/fueling-i...el-system.html
- https://ls1tech.com/forums/fueling-i...uel-pumps.html
- https://ls1tech.com/forums/fueling-i...ines-good.html
- http://forums.corvetteforum.com/1552476491-post15.html
- http://forums.corvetteforum.com/1550319620-post17.html
- http://forums.corvetteforum.com/1561082188-post1.html
- https://ls1tech.com/forums/11027771-post5.html
- https://ls1tech.com/forums/11031094-post7.html
I don't know if its in any of the links above, but I read the only reason high HP cars came with or needed super-thick feed lines and girthy rails is because they had the fuel pumps mounted in the front of the car and ran lower fuel pressure. Hopefully someone else can chime in with more info and physics to prove or disprove this.
11-14-2011, 07:37 PM
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This guy is using "modified stock fuel rails" I dont know what modified means but his pushing his car to 1000hp.
https://ls1tech.com/forums/dynamomet...hp-budget.html
https://ls1tech.com/forums/fueling-i...uel-rails.html
https://ls1tech.com/forums/dynamomet...hp-budget.html
https://ls1tech.com/forums/fueling-i...uel-rails.html
