I have installed a 2013 LSA engine and 6 speed automatic transmission in my 66 Chevelle pro-street project. I've done a few LS swaps before so most of it is not new. However, the fuel delivery is a bit of a mystery to me as to how to get enough fuel to the engine when under boost. I have installed a Hyperfuel 40020 into the custom made fuel cell. the Hyperfuel has two pumps that put out 340 L/PH each which will supply up to 1600HP. I will be making nowhere near that amount but wanted a system that not only met my needs now, could also meet any future needs if i end up stepping on the boost and/or engine.
So, to my question. Would you say it would be better to run both pumps in tandem into a fuel regulator that then feeds the rails? Also i have read that i would be better to change rails so the unused fuel could return to the tank. What rails would you reccommend? With both pumps being able to supply 800hp each i guess at this stage i could just run 1 of them instead of both? Also, i have heard conflicting opinions on needing a fuel management system which is super expensive. I'll do it if i have to, but also seen a dudes LS2 he just bolted a LSA supercharger on top of and installed a larger fuel pump and runs like stink.
I have only been working on my project for about 90 days so far. Still in the mock up stage so now's the time to run the fuel lines.
Thanks,
Wayne

 

Little under construction pic.

other side view
Couple of recent pics

 

Give Hector a call at Rick's tanks and between him and Carl Casanova from Vaporworx they can give you a system that will be foolproof without any return lines....... Do it once and do it correctly...... Ask me how I know...... LOL



Ken

 

I'm with Ken, I went with Vapor Worx, keep the stock rails my setup is probably like yours as I'm also Pro street so have a 16 gal fuel cell with Aeromotive stealth in tank setup with a 340 LPH pump, the nice thing about the Vapor Worx system is you can run boost referenced if you want, I don't because I originally ran an E38 ECU which doesn't support that, I recently switched to an E67 so I may implement it but you don't really need to as the pump still runs PWM even without it. Good luck I think you'll like the LSA.

 

Carl Casanova is "Mr. PWM" . He's doing a new PWM electric cooling fan controller too, for the curious...

 

I am 99% complete on a 2013 LSA/6L90E conversion.

I run a genuine (External mount) Bosch 044 fuel pump into a Bosch high pressure fuel filter (Bosch filter part 0450905003)

This then runs through a DWR1000 fuel pressure regulator & fuel pressure gauge which then feeds directly into the stock fuel rails (Set to 58 psi at idle)

Boost line from blower port to DWR1000 will automatically increase fuel pressure by max 10 psi when engine is boosting. ( 1 lb. boost equals an extra 1 lb of fuel pressure at the fuel pressure reg).

This system works a a treat but you will need a return line from the DRW1000 return port, back to the fuel tank in the rear.

Cheers
Craig

 

340 pumps are good to 800 hp each, Is that correct? Is that NA or boosted?
Stock rails seem good enough per most locals guys here running e85 and making over 800.
Off your topic, but what driveshaft are you going to get made for the non slip tranny yoke if that 6l80/90 was from a car?

 

 

Been busy since 12-2020. I had a fab shop work with me on replacing all the floor and new firewall, etc. I spent about 10 months doing the metal work, filler work, primer, etc. Got ready for top coat and hauled it to my buddies work shop in Prescott and had him shoot the top coat. First time I had bought cheaper base and it came out a little splotchy so I had him sand the car and re-shoot it. Then cut and buff it (1st go) before I hauled it down home to wire it and start finishing it up and getting it ready to fire up.

 

 

Nice car. I love 66 Chevelles. You need to decide if you want to use the fuel system you all ready bought or do it right and get a Ricks Tanks tank and Vapor Worxs PWM setup. Which is the best (imo) setup out As Ken (Kwhiz) said, “Do it once and do it correctly.”

 

Yes, and make sure you go with the Pressure Worx kit so that you can use the boost reference function that increases fuel pressure based on the MAP sensor.