IcemanG17

Since the 84 L jet has the dual pressure regulators in the rear and single damper in the front....how would I go about installing an adjustable pressure regulator? My best guess is to remove 1 regulator and use the Adjustable unit to fuel both fuel rails.....

Has anyone done this? Does anyone sell a kit?

I know I can adjust the AFM to a certain extent....but wonder if it has enough "range" to work?

Thanks

ZEUS+

Replace the regulator for cyls 5-8 with damper 930.110.602.00 from 85-86 . Replace regulator for cyls. 1-4 with the adjustable regulator.

IcemanG17

Perfect this is what I was looking for!!

Thanks

mark kibort

Why dont you just call me??? no, dont use a damper, just clamp off the return line on the other fuel regulator and put the adjustable one on the passenger side. (like the S4 has it set up)
What i mean by clamping off the return line, is take a vice grip and bend down the very end of the return output line. then, grind it down to smooth off the edges and then replace the line as it is stock. what happens, is the the return line is basically closed, and any few molecules of gas that does slip through, goes back to the gas tank as it normally does.
Then, the fuel pressure control is in the single RRFR.

Lizard928

And then that fuel line breaks and burns the car to the ground on the side of the track....

mark kibort

What are you talking about? you just pinch the end of the output steel that comes out of the fuel regulator. (just pinch it closed) then, grind down the edges. the only difference from stock, is that it is closed off, its still plugged into the rubber line as it was before the modification. understand??? no risk.

hacker-pschorr

It will give the corner workers something to roast their marshmallows over.
After all, this is the Lemons car we are talking about

mark kibort

The fuel line is not even involved in this mod. Dont tell Scot, because thats how we set up his car. 3 years of racing and he is doing fine, and there is NO potential danger or compromise of the system. (if you understand what was done) I wish I took pictures. Just picture in your mind, the exit tube of the regulator (that returns to the gas tank) pinched off , clamped down, squished, so that there was no opening. (and then the edges filed down to make it round again. Then, it gets stuck in the same return line rubber tube, that it did before, and the hose clamp is cinched down again. DONE, the fuel now, cant return through the clamped down return line and the regulator is its only way back. this raises the fuel pressure. using a damper, you then have to deal with some way to plug the return line, and its just another thing to do, plus, you need to buy the damper too.

Flint

Fo several years I've had the parts to do this on an LH-Jet, but the 85-86 damper is missing one of the connection points. So I was a tad confused how to go about it.

Landseer

Jadz928 showed me this setup on an 84 Euro. Car is damn powerful, that's for sure. He also has/had a wideband. PM him for particulars, I'm sure he would share.

chewy8000

Do it the right way. Create these hardline conversion fittings and run SS or high heat braided lines with AN fittings and the options are endless. Just delete the BEGI for non boosted applications and set your FPR to 30psi like the stock setting. My car runs great and I was able to delete almost all of those annoying vacum lines.

IcemanG17

Chewy
VERY nice setup....but I doubt the judges would "like" the fancy AN lines....pretty much if it ain't stock or stock looking I can 't use it :>( Darn $500 rule!!!

hacker-pschorr

This is getting way overly complicated......

Does anyone have a flair tool?

Cut the rail at the below locations (this is assuming the new dampner will be installed on the passenger side). Flair the ends, connect with rubber fuel line and clamps.

--or--

Do what I did.
Find an AN to Metric adaptor to connect to the steel line going to the tank, attach whatever size AN fitting fits the adaptor to a new piece of fuel hose.
Attach the other end of the hose to the FPR with whatever means necessary (this will depend on the regulator you buy).

-

mark kibort

its not that complicated! just clamp down the stock fuel regulator return line and you are done. what is the problem here?? its simple, it works and it is the safest way mentioned so far!

hacker-pschorr

Yes Mark, we hard you the FIRST THREE TIMES.

You are like a 5 year old in a toy store: mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom, mom........................... Ah,,,that last one finally hit the point home.

There is more than one way to skin a cat, some people are going to disagree with how you do things Mark.
Repeating yourself all day until the thread is closed isn't going to change anyone's mind.