has anyone run a universal afpr on their tuned port instead of the stock or adjustable, i want to mount my universal regulator up front whare the line gore from rubber to metal so its easier to get to and adjust if anyone has any info for please let me know.thank you

 

As long as you put it in the FUEL RETURN line to the tank I can't see how it would matter where it's located.....

 

thats what i thought but someone said if i put it up front its going to regulate the presure for the injectors and he said you dont want that.but i dont see the difference if its up front its easy to change the presure.he said the stock regulator regulates the presure back to the tank not the injectors.well thanks for your help bro hopefully i get it installed soon i have to figure out how and what kinda ends i need.hey i would like to see some pics of that formula i used to have 1988 formula 350 they are sweet.how do you like that wonderbar?

 

You could do it like the LS1 swappers have been doing...mount an Aeromotive regulator on your fender, cap your TPI fuel rail return fitting, and just plumb the car's feed/return lines to the regulator.

That leaves you with a single hose connecting to the fuel rails, and doesn't circulate gas to pick up all that engine heat.

 

Just make sure you put it on the RETURN line, not the feed line, and you should be okay as far as I can figure.

I'd pass on the way the LS1 guys do it, 'cause you would still need a vacuum controlled regulator for a TPI setup I think.

As for my Formula, check out my cardomin page, it's in my signature below. And I really like the Wonderbar, as well. Thanks for the compliments!

 

it would not matter.
The regulator is to regulate the pressure to the injectors. thats what it does. think of it. if your injectors had whatever pressure available to them you would never get the same fuel in the intake. this is because the computer calculates how long the injectors are to stay open to get the propper amount of fuel in. the computer relys on it being a constant pressure to do this.

 

Ah, smokin', but the fuel pressure is NOT constant on TPI motors - it increases as the engine vacuum drops..... so the constant regulator may or may not work out right. What am I missing here?

 

but the computer does know what pressures it will be at different load variables.
you can do a constant regulator but you would have to get into prom editing to get it to run good.

 

OK, I'lll give you that one - but I think that's probably beyond the original postee's ability right now....

And not something I'd look forward to doing either.

But you're probably right provided you can get the PROM changes corrected for the constant pressure.

 

wait a minute what am i gonna do with the vacum line on the fender mounted regulator? is it gonna work?can i block it off and just leave the vacum on the original going to the intake? now im getting worried.or should i run a new vacum line to the new regulator?

 

If you leave the standard regulator on the fuel rail, it will still try to control the fuel pressure. I thought you were going to remove it and use the other one instead with the original's vac line...

 

What you want to do is going to cost afew dollars. I was told in the past, that you can go to a junkyard and get the hardline that connects the fuel rails in the front. Then replace the rear one, with the OEM regulator with that. That way the system is still tied in, and the OEM reg. is gone. What I did, was, and IMO, is alot more eye appealling, is remove the rails, dissassemble, weld up all existing hard line holes, drill each end of rails, weld -6 an fittings, and plumb braided line to the rails. Take your supply line, and install a "Y" , and then plumb 2 lines from it to the front of fuel rails. Then take 2 lines off the rear of the fuel rails, (get different degree fittings to clear dist.) trail and error here, and run these to an Aeromotive regulator, then the third port on the reg. will go to the return line. Use the vacuum off the plenum as previous. I had to perform this, as I replaced my entire fuel system. You might not want to get that involved, but it looks cool, and it works perfectly. can be done in a full day or two. ..Tom

 

BTW, vernw, beautiful ride....!!!

 

This would not be desirable only because you will be removing the linearity of the fuel injector output by doing this.
That is one of the "constants" that the calculations are based on.
If you majke the fuel delivery non-linear the calculations will never be accurate. I will say that it probably can be worked with but the target will keep moving under each different pressure that is across the injector outlets and will make things more difficult that it should be. Everything is based on the injector doing what it is told. If you give it some play because of changing rail pressure all other parameters will be shifting around by the same variance.

 

if i hook the regulator whare the rubber lines used to be whats the difference its still going to have the same presure it would with the stock one right? so the way i see it 46 lbs is 46 lbs nomatter whare it gets cut off.hey brutalform im in new york you wanna come here and hook that setup for me? tell what it will cost for your time and the materials.
hey VERW the stock regulator isnt working anyways so why would still try to control the presure?

 

1987gt, Why would you want to do this modification anyway? I did it because I did not have a choice. I had to do it. I dont see any reason why you would want to spend that money if you did not have to. Russell fittings,steel braided line , and the labor alone, really will not give you any performance gains. ...Tom

 

well the reason was becuase i think its a bad design and i am having many problems with it like the screw is hard to get too,i stripped out those stupid locking torx screws and i installed the old regulator. it wouldnt work so i took the plenum off again a real pain in the *** and installed a new stock regulator with the bbk housing and it still is running at 60lbs it wont go down so i dont know what the problem is but now im returning the regulator and getting a stock type holly afpr and i will let you all know what happens next week or 2 when i get it done.I wanna thank everyone for the help.