# Corvette Fuel System Q's **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [July 29, 2010, 10:25am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472 "2010-07-29T10:25:51Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![ultradriver10000](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ultradriver10000/32/7397_2.png) [@ultradriver10000](https://forums.speedlife.net/u/ultradriver10000)\ **Post date:** [July 29, 2010, 10:25am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/1 "2010-07-29T10:25:51Z")
Ok the fuel system in my 1997 vette has the pump in take with an output line and a return line running all the way to the fuel rail. The new engine is LS3 based which only has the output line going into the fuel rail. Can anyone suggest a drop in pump? Inline pump? MSD boost a pump? What works best to increase pressure and reliability? Also, I am going to need some sort of three way adjustable fuel pressure regulator. It will need a line in (from pump), return out (back to tank), and line out (to fuel rail). A provision for a pressure gauge would be really nice too. Anyone know of something like this? Seems most I find are just 2 way. I don’t need any vacuum or boost controlling… Ideas? ---
**Author:** ![ultradriver10000](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ultradriver10000/32/7397_2.png) [@ultradriver10000](https://forums.speedlife.net/u/ultradriver10000)\ **Post date:** [August 16, 2010, 8:38am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/2 "2010-08-16T08:38:02Z")
No one has any ideas? What do you all big HP guys due for fuel? Right now I have a factory C5 fuel system and the MSD Boast a pump kit. Do you think upping the voltage on the stock pump will be enough or should I also look into an inline pump or try some dual in take pump set up? ---
**Author:** ![psychopjv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/psychopjv/32/7251_2.png) [@psychopjv](https://forums.speedlife.net/u/psychopjv)\ **Post date:** [August 16, 2010, 6:43pm UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/3 "2010-08-16T18:43:58Z")
Slam a walboro in and get aftermaket rails and keep the return system. walboro will handle an ls3 no problem. ---
**Author:** ![Studderin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/studderin/32/7197_2.png) [@Studderin](https://forums.speedlife.net/u/Studderin)\ **Post date:** [August 16, 2010, 8:30pm UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/4 "2010-08-16T20:30:02Z")
this types really shitty i have no space, shift,caplock what is big power -qestion mark- how hard is it to change over to a 98 -plus- stock rails, and lines to use it -question mark- i have made 550 na whp on 98up stock line and rail with one or two- qestion mark- walbro that cost like 40bucks fyi stry has made 1033whp and got a billet stock type sender with intank stock like pumps. and bigger line. but no fancy booster inline pumps relays-hobbs switchs pain in the ass. just key on stock type fuel system, i know i really like using stock parts. the cars i have worked on with aftermarket rails, adjustab;e regulators, inline pumps i always have to fuck with them. guys get them for being -easy- at first and they suck. pat is it that easy, is it just the 97 rails that suck or the way the filter- full return line is in the 97 that makes them not support as much as a 98plus i sold a lot of stock rails to guys with 97s always changing over i know ---
**Author:** ![ultradriver10000](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ultradriver10000/32/7397_2.png) [@ultradriver10000](https://forums.speedlife.net/u/ultradriver10000)\ **Post date:** [August 17, 2010, 7:39am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/5 "2010-08-17T07:39:02Z")
> [@psychopjv](#): > > Slam a walboro in and get aftermaket rails and keep the return system. walboro will handle an ls3 no problem. I Don’t have a problem tossing a new Walboro in. How do I keep the return system system with an LS3 intake? I actually have three fuel rails, my 1997 return style, a 2000 returnless style and a LS3 returnless style. My LS3 is a forged stroked 418 that will have direct port N20 with meth…maybe a ~350 shot. Think the Walboro and the boast a pump will be fine? > [@Studderin](#): > > this types really shitty i have no space, shift,caplock > > what is big power -qestion mark- > how hard is it to change over to a 98 -plus- stock rails, and lines to use it -question mark- > i have made 550 na whp on 98up stock line and rail with one or two- qestion mark- walbro that cost like 40bucks fyi > stry has made 1033whp and got a billet stock type sender with intank stock like pumps. and bigger line. but no fancy booster inline pumps relays-hobbs switchs pain in the ass. just key on stock type fuel system, i know i really like using stock parts. the cars i have worked on with aftermarket rails, adjustab;e regulators, inline pumps i always have to fuck with them. guys get them for being -easy- at first and they suck. > > pat is it that easy, is it just the 97 rails that suck or the way the filter- full return line is in the 97 that makes them not support as much as a 98plus i sold a lot of stock rails to guys with 97s always changing over i know How do I switch over to returnless? Do I need an external fuel pressure regulator or do I need to swap over all the fuel lines? That seems to be a pain in the ass. How can I run two Walbro’s? 🙂 I’m thinking something like this might be the best thing for me. I’d still need a fuel pressure regulator though. 😕 ---
**Author:** ![brent\_strong](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/brent_strong/32/7203_2.png) [@brent\_strong](https://forums.speedlife.net/u/brent_strong)\ **Post date:** [August 17, 2010, 7:57am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/6 "2010-08-17T07:57:48Z")
C5 vette FPR/filter combo. It’s a return-style FPR set for around 58psi. Hugely popular for LS1 swaps. Should work great for your returnless rails. These are the part numbers to look for: Napa Fil3737 AC/Delco GF822 WIX number 33737 ---
**Author:** ![ultradriver10000](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ultradriver10000/32/7397_2.png) [@ultradriver10000](https://forums.speedlife.net/u/ultradriver10000)\ **Post date:** [August 17, 2010, 8:09am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/7 "2010-08-17T08:09:50Z")
Awesome I can get these and run the factory LS3 fuel rail with the walbro and boast a pump kit. 🙂 WIX filter #33737 ($35) 3/8 russell quick connect # 640850 ($15.95) 5/16 russell quick connect # 640860 ($14.95) Russell 3/8 Male quick connect to -6AN 640940 ($11.95) ---
**Author:** ![psychopjv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/psychopjv/32/7251_2.png) [@psychopjv](https://forums.speedlife.net/u/psychopjv)\ **Post date:** [August 17, 2010, 8:57am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/8 "2010-08-17T08:57:34Z")
> [@ultradriver10000](#): > > Awesome I can get these and run the factory LS3 fuel rail with the walbro and boast a pump kit. 🙂 > > WIX filter #33737 ($35) > 3/8 russell quick connect # 640850 ($15.95) > 5/16 russell quick connect # 640860 ($14.95) > Russell 3/8 Male quick connect to -6AN 640940 ($11.95) That will work great. I sure as hell hope you plan on running a dedicated fuel cell for that much nitrous. Because pulling that much off the rails is not gonna pan out at all. ---
**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\ **Post date:** [August 17, 2010, 9:38am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/9 "2010-08-17T09:38:29Z")
I was just about to say what Pat did. Keep a single 255 for NA and get a dedicated setup for the N2O. Are you keeping your car 6-sp? ---
**Author:** ![ultradriver10000](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ultradriver10000/32/7397_2.png) [@ultradriver10000](https://forums.speedlife.net/u/ultradriver10000)\ **Post date:** [August 17, 2010, 9:50am UTC](https://forums.speedlife.net/t/corvette-fuel-system-qs/158472/10 "2010-08-17T09:50:42Z")
Yes it is staying 6 speed, and I will have a dedicated fuel system for the N20. I was thinking about running N20 and Meth rather then N20 and race fuel what are the thoughts on that? Something like this is going in the battery sport up front. 🙂 ![http://www.nitrousexpress.com/power_sports/images/hires_products/15004P.jpg](http://www.nitrousexpress.com/power_sports/images/hires_products/15004P.jpg)