stock fuel rails
I made a little over 600rwhp with twin in-tank pumps, stock lines, rails and stock fpr @ 60psi with the D1SC @ 12psi. I'm sure it would have handled much more but I upgraded the lines and added a return style soon after.
Trending Topics
Nice set up - got a quick question Wow, you've got a sweet set up. I'm doing an E85 set up on stroked LQ9 block with L98 heads and a stock LS3 intake/fuel rails. It's getting a little help from a single 78 mm turbo. It's going in a Nissan 300zx twin turbo car. I'm trying to firgure out if my stock lines are OK, or what size I need to upgrade to. What diameter lines are in your set up feeding the stock fuel rail? What fuel pressure regulator are you running? Does it return to tank? What brand and size infectors are you running? I really appreciate any info you could help me out with. Thanks!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Staging Lane
Joined: May 2011
Posts: 83
Likes: 0
From: Reno,NV
Wow, what an incredible bit of info for me....I would have fell victim to upgrading for no reason at all as well. I mean now I'm looking at my build up in a slightly different way. A little flashy paint on the stock rails and PRESTO my rail upgrade is complete. LOL....ULTRA KOOL more dough to diverge into another direction. TKS for info guys!
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.
