I am in the process of converting to the HSR. I am curious as to what afpr everyone is running. I want to use an aeromotive one but not sure how to plumb it in. Any suggestions, pics would be appreciated. 91 Z 28 350 w/modded TPI set-up
Mike

 

It all depends on the rest of your fuel system, IMO. I think the Aeromotive AFPR is a bit overkill, unless you are upgrading the whole fuel system. It would be plumbed like this...

 

or like this..

http://www.cecoatings.com/images/mis...0series%20.jpg

 

You could also get the Aeromotive Universal EFI AFPR.
Then have the rails welded up so you have AN fittings on one end like the first photo. No need for the other end unless you
want it that way. The universal is a 5 port reg so you have the supply to the reg and the rails on the same half of the FPR. The second pic is very similar to what I mean. Except the
capped side would go to the other rail and the supply to the regulator. It would be very similar to how the LSx's are setup.
I think I read somewhere that a Kirban regulator for a GN will work too. All very close in price. Just have to watch if the fittings are included when pricing.


edit: oops, I was thinking TPI rail conversion.
No welding needed if using HSR rails.
Just get the stock HSR FPR port tapped and plugged.

 

I ordered the stand alone Holley fuel rails (for their single plane intakes) and made my own kit with the Aeromotive regulator for the StealthRam. I used the short side rail for the driver’s side and ran a -6 o-ring to -8 AN fitting, a -8 female coupler, and a -10 o-ring to -8AN fitting to run the regulator. It’s a little tight, but clears everything. I had a machine shop drill and tap the stock regulator opening with a 3/8 tap and plugged it, but with a fitting, it can be used for a wet nitrous fuel source if needed. This cost me about $60 more than the stock kit, but I ended up with better looking fittings – mainly because I thought the stock StealthRam kit’s regulator was a little cheesy. Since some people have had problems with the stock Holley StealthRam regulators, retrospectively that was probably $60 well spent.

As stated the GN billet regulators will bolt in place of the stock StealthRam regulator and on the single plane fuel rail kit. However, while the injector spacing on these rails are the same, the rail lengths are different, so I’m not sure if you could run the GN regulator on the single plane rails with the StealthRam – it should work without clearance problems on the stock HSR rails though

 

Wow looks awesome, but seems like a lot of work. Any part numbers for all the fittings and the regulator, and any finished pics. Thanks for the info
Realmac4@aol.com
Mike

 

I used XRP fittings. Earl had comparable fittings, but they were pricer than the deal I got on the XRP fittings. This link has pretty good pricing on 90-degree 6AN o-ring fittings

http://www.goodvibesracing.com/o-ring_fittings.htm

Aeromotive part number I used is the 13101 with -10 inlets - figured I would use a reducer as opposed to going with the 13109 that has -6 inlets. The -6 fittings are cheaper, so if you don't see a 750+ horsepower application any time in your future, it'll save you a few bucks. Here's the Aero link.

http://www.aeromotiveinc.com/product...ure+Regulators

The rest of the fitting numbers will depend on the brand you go with,, so you'll have to do a little research there on your own, but the following tells you what fittings I used.

10
The Holley 9900 –147 fuel rails are pre-tapped for –6AN O-ring fittings. The custom arrangement on this IROC utilizes two XRP -6AN 90 degree O-ring to –6AN male fittings and two Summit 90 degree –6AN hose ends and a short section of –6AN hose for the front crossover.
11
A XRP –6AN 45 degree O-ring to –6AN male fitting and a Summit 45 degree –6AN hose end was used on the inlet side of the rails to connect to the fuel feed line. The combination of the 45 degree fuel rail fitting and the 45 degree hose end allowed the distributor full rotation and allowed enough clearance so the distributor could be pulled without disrupting the fuel lines.
12
On the outlet side of the railing a XPR –6AN O-ring to –8AN male fitting in the rail, a XPR –8AN coupler, and a XRP –10AN O-ring to –8AN male fitting were utilized to attach the Aeromotive regulator. XRP -6AN 90 degree O-ring to –6AN male fitting to a straight Summit –6AN hose end was used to send fuel to the return line. A –10AN O-ring plug stops fuel from exiting the unused port on the regulator.
13
Earl –6AN stainless steel hose and Earl female 16mm to –6AN male for the stock supply line and 14mm to –6AN male fittings for the stock return line were used along with Summit 90 degree hose ends to complete the fuel system.

Here's a picture of the Aeromotive going on the StealthRam

 

I'm having a hard time finding a -6AN 45 degree o-ring to -6AN male fitting.

I can only find 90 degree or straight fittings.

 

The XRP part number for a non-swivel o-ring to male flare 45* is 984506 (page 33) and the swivel male flare end part number is 964506 (page 32). They even have a bent tube swivel 45 degree, part number 954506.

Here's a PDF file for their catalog.
http://www.xrp.com/XRPCatalog.pdf

They're nice fittings and XRP makes a lot of fittings that I've never been able to find anywhere else. Fortunately there's a local shop that carries XRP.

I've never ordered from these guys, but they do list and good many of their fittings at this link - they list the fixed 45* for $12.53. Do the search for part manufacturer XRP to see all their XRP listing.
http://www.porterfield-brakes.com/cg...ield/parts.cgi

 

Awesome!

 

best adjustable regulator that will fit the HSR is the Kirban unit.... its all billet aluminum i believe and its a very durable piece. GN guys love it and so does everyone i have heard who has used it.

If my stock holley unit fails, i'll go Kirban as well.

its like 110-120 bucks or something liek that

 

I've got the Kirban, it does the job. What I don't like about the HSR is the regulators location on the fuel rail. It's a big pain in the *** to adjust fuel pressure when the reg is on the bottom of the fuel rail, behind my tall valve covers. I like the Aeromotive one because its practically on top of the rail and easier to get to. I'd like to be able to go to the track and, within seconds, adjust the fuel pressure, easily. With the reg on the bottom, there's just too much clutter in the way to adjust it quickly--for me anyway.

 

it is kinda hard to get at the fuel pressure, but once i set it, i dont change it. I tune fuel with the prom at the track if need be

 

agreed, your injectors are only really going to perform so well up to a certain pressure. Past that you need more fuel in your VE table, or more pe earlier maybe? etc

 

Yes, and I want to find that pressure while at the track.