Fuel pressure regulator location

[Buzzsaw]

Hello All

Planning location of fuel pressure regulator location. I have seen threads for location with coyote engine. I have a Boss 302 based engine with FF Metals fire wall foreword set up and Mechanical throttle from Forte. Also purchased FFR heater defroster and windshield wipers and plan to install. Any location suggestions, pictures, comments would be appreciated. Also because of accessibility it would be better to install before engine install. Any reasons to install after engine installation?
Thanks in advance
Ross

[Al_C]

My sense is that you have not yet installed your engine. (I hope I'm correct here) I would also venture to guess that at some point you will trial fit the engine and remove it again. If that's the case, that would be the perfect time to determine the location. Try different spots and see what you like best. There is no right or wrong way to do it. Then, after the engine is out, install the regulator and you should be good to go!

[toadster]

I located my FPR behind the engine close to the passenger side on my FF Metals firewall forward, clearance is perfect since the coyote is a shorter depth block (but very wide)

https://i.ibb.co/jk5GGyg/image.png (https://ibb.co/jk5GGyg)

you can see the amount of 'stuff' I have on my firewall in this pic, the FPR is just behind the heater hoses between the A/C evaporator and the heater valve, I can fit a 10mm socket in there to modify fuel pressure :)

https://i.ibb.co/VpCg9Lm/image.png (https://ibb.co/VpCg9Lm)

[John Ibele]

I used the combined filter / regulator from Breeze, which sits above the fuel tank and has the return loop completely contained back there. I used braided SS hose from there to a single 3/8" hard line going to the front. Then hose from there directly to my Sniper.

https://live.staticflickr.com/4827/46042445994_d8602ab2f5_b.jpg (https://flic.kr/p/2d9Bz6L)
Untitled (https://flic.kr/p/2d9Bz6L) by John Ibele (https://www.flickr.com/photos/familycobra/), on Flickr

https://live.staticflickr.com/65535/52304772601_81f6c10761_w.jpg (https://flic.kr/p/2nFZCCa)
Untitled (https://flic.kr/p/2nFZCCa) by John Ibele (https://www.flickr.com/photos/familycobra/), on Flickr

https://live.staticflickr.com/65535/52209542553_734de5e090_w.jpg (https://flic.kr/p/2nxzy3M)
by John Ibele (https://www.flickr.com/photos/familycobra/), on Flickr

https://live.staticflickr.com/65535/52209520781_f5bb945b0c_w.jpg (https://flic.kr/p/2nxzrzp)
by John Ibele (https://www.flickr.com/photos/familycobra/), on Flickr

After those photos were taken I added an oil separator. The previous photos show the left side of the firewall okay, this is the best I could find with oil separator in place. Obviously things can get crowded in there even without a regulator if you put a coil on the firewall like I did.

https://live.staticflickr.com/65535/52255936971_a9d5023dd6_w.jpg (https://flic.kr/p/2nBFkux)
Untitled (https://flic.kr/p/2nBFkux) by John Ibele (https://www.flickr.com/photos/familycobra/), on Flickr

Based on my experience I would say (1) get your wiper motor and heater / defroster mounted as far left as you can, (2) get your mechanical throttle position established (since you want the last link coming out to the engine at a 90* angle from the firewall). That will give you your real estate for your remaining items. I could have tucked the oil separator under either the coil or a regulator if I had needed one up there. Oh, and in case it's not obvious, 347 built around a Dart block, standard firewall (although I made mine from thicker aluminum). Hope that helps.

[phileas_fogg]

I've got much the same setup: Boss 302, FF Metal firewall forward, wipers, heater, and Forte's linkage. I mounted my FPR on the firewall...three times. The first time, I failed to account for the space required by the 90* fitting and mounted it too close to the heater. The second time, I mounted it too low and the fittings interfered with my bell housing. The third time I finally got it right.

To avoid this hassle, do as Al C suggests and find the FPR's home when you test fit the engine. Be sure to put the fittings on the FPR, and to mate the transmission to the engine for your test fit (I did the engine only, got the angle wrong, and so didn't identify the bell housing interference).


John

[cv2065]

I located my FPR behind the engine close to the passenger side on my FF Metals firewall forward, clearance is perfect since the coyote is a shorter depth block (but very wide)

https://i.ibb.co/jk5GGyg/image.png (https://ibb.co/jk5GGyg)

you can see the amount of 'stuff' I have on my firewall in this pic, the FPR is just behind the heater hoses between the A/C evaporator and the heater valve, I can fit a 10mm socket in there to modify fuel pressure :)

https://i.ibb.co/VpCg9Lm/image.png (https://ibb.co/VpCg9Lm)

That regulator position looks great Toadster. Allows the flex lines to look very organized. Looks like I'll be doing the same.:p

[Buzzsaw]

My sense is that you have not yet installed your engine. (I hope I'm correct here) I would also venture to guess that at some point you will trial fit the engine and remove it again. If that's the case, that would be the perfect time to determine the location. Try different spots and see what you like best. There is no right or wrong way to do it. Then, after the engine is out, install the regulator and you should be good to go!

Thanks for the suggestion Al, I have not installed the engine. I hadn’t planed to test fit the engine then remove it. Now that is something to think about.

[Buzzsaw]

Thanks for the picture Toadster. That looks like a good location, is that your cut out for a heater top left of picture.

[Buzzsaw]

Thank you John Ibele,
I had not seen the Breeze filter/regulator. I’ll take a look.

[Buzzsaw]

Thanks John,
I really was not planning a test fit, but my reconsider. I too have to find a mounting location for a coil. Just trying to have as clean a firewall as possible. Not to sure that is possible. Haha!

[OB6]

Thank you John Ibele,
I had not seen the Breeze filter/regulator. I’ll take a look.
That's the filter/regulator from the C5 Corvette and very commonly used with LS swaps. However the growing sentiment is that they're becoming increasingly unreliable due to poor manufacturing quality. So make sure you buy a WIX or GM part. Very inexpensive at Rockauto. That said, I was advised by the shop where I bought my LS3 to use a different solution.

[Kbl7td]

Call me crazy but having a regulator and lots of connections in the engine bay, I don’t like. I’ll be locating my aeromotive near the tank with a short return line. I’ll have a fuel pressure sender tied in at the manifold and then can dial my pressure in there with an accurate reading. Of course, this is with an LT1, different motor.

[Buzzsaw]

Thanks OB6! Good to know.

[OSU Cowboy]

I made a 90 degree bracket mounted to the 3/4" frame rail that runs along the engine bay opening on the passenger side of the car, mounting the fuel pressure regulator to that bracket. Easy to access in the event an adjustment was needed. I'm running an in tank electric fuel pump and carbureted engine, with thoughts of a Holley Sniper at some point down the road.

[toadster]

Thanks for the picture Toadster. That looks like a good location, is that your cut out for a heater top left of picture.


yes, you can see the heater / A/C evaporator in the 2nd pic that fills the hole - just no fan installed in that pic

you can see the finished setup in this pic... honestly I couldn't have planned the FPR placement better
https://i.ibb.co/HBzQZHh/image.png (https://ibb.co/HBzQZHh)

[Buzzsaw]

yes, you can see the heater / A/C evaporator in the 2nd pic that fills the hole - just no fan installed in that pic

you can see the finished setup in this pic... honestly I couldn't have planned the FPR placement better
https://i.ibb.co/HBzQZHh/image.png (https://ibb.co/HBzQZHh)

Thanks for all the help Toadster! I am enjoying your web site too!

[cc2Arider]

Any issues with the engine/exhaust heat for the lines "traditionally" routed up from the passenger footbox to the firewall?

I was thinking of a heat "sleeve" for those lines...

Also, has anyone run the lines such that they are mounted to the short, angled 3/4" tubing (the reinforcement from the A-panel tubes down to the passenger 4" main tube)?

Craig C

[phileas_fogg]

For my Ford 302, no issues with heat at all. I brought the hard lines down the right side 4" tube, up and over into the engine compartment, and then ran flex line up the 3/4" diagonal braces to the FPR. Note that in the picture the FPR placement caused an interference between the flex line fitting and the bell housing; I had to move the FPR up from where it's shown in the picture.


John

https://thefactoryfiveforum.com/attachment.php?attachmentid=194234&d=1704734819

[Randy's]

Like most of you guys, I have mine in the engine bay near or on the firewall. However, somewhere I read that this is not a good idea. Most fires are caused by these failing and spraying gasoline on the hot engine/headers, etc. I would be interested in hearing if anyone has relocated one from the engine bay to elsewhere and how you did it.

[toadster]

Like most of you guys, I have mine in the engine bay near or on the firewall. However, somewhere I read that this is not a good idea. Most fires are caused by these failing and spraying gasoline on the hot engine/headers, etc. I would be interested in hearing if anyone has relocated one from the engine bay to elsewhere and how you did it.

once my fuel pressure was set, I removed the FPR gauge and plugged the hole - that's usually the culprit of the leaks IMHO

[CDXXVII]

Here is where I placed mine.

https://thefactoryfiveforum.com/attachment.php?attachmentid=194243&d=1576646274

[Springboro FFR Roadster]

Hello All

Planning location of fuel pressure regulator location.

Locate it in a place so that you will be able to adjust it later. Don’t ask me how I know this.

Roy

[cc2Arider]

Here is where I placed mine.

https://thefactoryfiveforum.com/attachment.php?attachmentid=194243&d=1576646274

Nice, clean engine bay!!

Craig C