Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

Efi Fuel Regulator for LS1

General Tech Talk

Moderators: toaddog, TWISTY, V8Patrol, Moderators

Post Reply
Posts: 624
Joined: Mon Aug 21, 2006 8:40 pm
Location: Albany, WA

Efi Fuel Regulator for LS1

Post by Kitika »

Ok got my fuel pump sorted for my Ls1 to Hzj80 cruiser conversion but I can't find a regulator with a fuel return built in to it. Does one exist or is there a trick to use a standard fuel regulator? I have seen a standard Ls1 corvette filter/regulator with a fuel return as it is built for the ls1 but can't source them in Aus which will suck when it's time to replace it.
Any tips?
More Suzuki parts going to the big Suzuki Heaven in the sky!
Posts: 4426
Joined: Mon Mar 22, 2004 4:39 pm
Location: Sunshine Coast

Post by bru21 »

'T' piece and a malpassisi reg. Cheap regs suck arse worse than elton john's dressing room staff before a show

60 psi is a good starting point.
ADHD Racing would like to thank
Mrs Bru @ Sunshine Coast Developmental Physiotherapy - www.scdphysio.com.au , Ryano @ Fourbys www.generaltire.com.au Blitzkrieg Motorsport
Posts: 624
Joined: Mon Aug 21, 2006 8:40 pm
Location: Albany, WA

Post by Kitika »

How do you set up the T-piece??? I got a quote on a malpassi for about $140 good price?
More Suzuki parts going to the big Suzuki Heaven in the sky!
Posts: 1208
Joined: Fri Nov 08, 2002 8:21 pm
Location: sunshine coast

Post by killalux »

Hey mate, The filter with built in pressure reg is also used on later model commodores AFAIK.

To set up the malpassi, add a t-piece in the line between your fuel pump and injector rail, then from there go into the pressure reg, then from the reg back to the fuel tank.

Steve
KILLA KUSTOM KABLES
CUSTOM AUTO ELECTRICAL SPECIALISTS
0404811498
LS1 & DURAMAX ENGINE CONVERSIONS, DRIVE IN DRIVE OUT. PATROLS AND CRUISERS

LS1 STANDALONE HARNESS $475ex
Posts: 624
Joined: Mon Aug 21, 2006 8:40 pm
Location: Albany, WA

Post by Kitika »

......Fuel pump-Tpiece-Injection rail
.........................I
Return to tank-Regulator

Is that what you mean with Tpiece? Do you know what model commo has the filter with the regulator in it? I might look in to that.
More Suzuki parts going to the big Suzuki Heaven in the sky!
Posts: 1208
Joined: Fri Nov 08, 2002 8:21 pm
Location: sunshine coast

Post by killalux »

yep thats it. no not sure which commo sorry. i think vz onwards
KILLA KUSTOM KABLES
CUSTOM AUTO ELECTRICAL SPECIALISTS
0404811498
LS1 & DURAMAX ENGINE CONVERSIONS, DRIVE IN DRIVE OUT. PATROLS AND CRUISERS

LS1 STANDALONE HARNESS $475ex
Posts: 1258
Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

Post by PGS 4WD »

Malpassi regs are not good for consitant fuel pressure. Use an Aeromotive or a Sard. You can set them up like the factory with atmospheric reference or MAP reference with a return line but it requires changes in software relative to injector flow rates. Set pressure to 4 Bar.

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
-Qualified mechanics
Posts: 624
Joined: Mon Aug 21, 2006 8:40 pm
Location: Albany, WA

Post by Kitika »

Not sure what the atmosperic reference or MAP reference does? I have already got the malpassi on order so I hope its not to bad... Probably another silly question but setting the pressure rate. How do I do that or am I going to need a special gauge on the end of the fuel rail to get the right pressure?
More Suzuki parts going to the big Suzuki Heaven in the sky!
Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests