pressurized fuel for ls1? - Team Camaro Tech
Engine General Engine Discussion.

LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old Mar 28th, 04, 04:14 PM Thread Starter
Join Date: Dec 1999
Posts: 83

I recently came across an LS1 longblock for $200, and Im contemplating dropping it in my 69 instead of selling it....someone told me however that to run the LS1 Id have to change my fuel system in the 69 to run a "pressurized fuel system". I had never heard about this, does anyone know if this is true?
SteveTheCamaroGuy is offline  
Sponsored Links
post #2 of 5 (permalink) Old Mar 28th, 04, 04:28 PM
Senior Tech
Join Date: Sep 2001
Location: Queen Creek AZ
Posts: 3,677

I'm not the expert here but, fuel injectors need higher pressure to operate. Instead of 6-9 PSI for a carb, TBI needs around 20 PSI and MPI needs around 40 PSI. You need a fuel pump capable of delivering said pressure and fuel lines to handle it.

Best of 1.55 - [email protected]
paulm is offline  
post #3 of 5 (permalink) Old Mar 29th, 04, 12:36 PM
Join Date: Sep 2002
Posts: 409

the factory fuel pressure reg on an LS1 is in the tank and is factory set @ 60 PSI using the returnless system (not sure about the 97 vette, remember reading somewhere they are different, think they use a return line)
fast is offline  
post #4 of 5 (permalink) Old Mar 29th, 04, 07:26 PM
Join Date: Jun 2003
Posts: 203

the best way is to run an intank pump to a 99+ corvette regulator/filter.. fuel goes from pump to regulator where it is filtered and sent to the engine at 60psi. excess fuel is returned to the tank from the filter/reg unit [img]smile.gif[/img]

This saves you from running a line the fuel rail and then a return line all the way back to the tank.

For LS1 related questions you might want to also try -- they have a good hybrids section for people (like me) putting LS1's into different cars

Feel free to ask me any ??? since i just did this.
Steve2000SS is offline  
post #5 of 5 (permalink) Old Apr 1st, 04, 04:53 PM
Join Date: Sep 2002
Posts: 409

the vette unit is external?
that'd be better than the f-bod which is in-tank
fast is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome