348 348 Fuel Pressure Regulators - Good Luck!

Hey All,

I wanted to give the FChat community a heads up on 348 FPRs. It took me months to source them, so get a a couple extra on reserve when they’re back in stock or be ready to pay literally a 10x premium ($1400 extra) for two when you need them or let your car sit for who knows how long...

There are two different FPRs for the car: 1) 3.2 bars and 2) 3.8 bars - each have different fittings.

1) Standard Motor Products PR161 & Bosch 280160213
2) Standard Motor Products PR298 & Bosch 0280160738

As of now, #2 is much harder to source. My car is a 1991 had had #2 style despite supposed to be #1. So, check on it prior to ordering. If you take it off… be very careful to not damage the fitting when working on it or it won’t seal again. You may be able to see its fitting design when not removing it, especially if you remove the throttle position solenoid (easy to do) which blocks the view.


Examples:

In stock ($$$$$$$$):
https://www.autoignite.co.nz/products/ferrari-fuel-pressure-regulator-0280160738

https://www.ferraripartsexchange.com/products/fuel-pressure-regulator

https://awitalian.com/product/fuel-pressure-regulator-137960.html/


Only ones in stock (affordably) that I found on the whole internet (not any more, I got the last two). I had to do an international wire transfer direct with my bank to get them. $550 all said and done for 2. They’re adjustable up to about 5 bars too. -
1) https://www.protoxide.eu/en/fuel-pressure-regulators/2111-fuel-pressure-regulator-ferrari-348-ferrari-mondial-adjustable-0280160731-0280160715-137960.html
2) https://www.protoxide.eu/en/fuel-pressure-regulators/3241-fuel-pressure-regulator-ferrari-348-ferrari-mondial-adjustable-0280160738.html

Amazon had #1 in stock!!
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Out of stock, but good options if you alert yourself to restock notice and buy a couple asap:
2) https://www.rockauto.com/en/parts/standard+motor+products,PR298,fuel+injection+pressure+regulator,6124
2) https://www.summitracing.com/parts/smp-pr298
2) https://www.walmart.com/ip/Standard-PR298-Fuel-Pressure-Regulator-For-Ferrari-Mondial-t/46072252

#1) compatibility and summary, according to one site: Image Unavailable, Please Login Image Unavailable, Please Login

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I spent a lot of time/headache on this matter. So, here is the summary of what I learned. Good luck FChat community!






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Interchange text to help with search engine:
2) INTERCHANGE

ACDelco: 217-3329
Airtex: 5G1127
Bosch: 0280160738
BWD: 22863
BWD Intermotor: 22863
Duralast: PR440
Echlin: 2-19624
Kem: 143-865
Sorensen: 800-410

1) INTERCHANGE

ACDelco: 89054356
Airtex: 5G1020
Alfa Romeo: 60513339
AMC: T0720058
Beck/Arnley: 158-0488
Bosch: 280160213
BWD: 22803
BWD Intermotor: 22803
Chrysler: T0720058
Delphi: FP10225
Duralast: PR423
Echlin: 2-19557
Jeep: T0720058
Kem: 143-815
Renault: T0720058
Sorensen: 800-273
Volvo: 3547653


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My friend will help me tune the adjustable fuel pressure regulators, and I got a tool to measure it. That is one factor to consider for those getting an adjustable one.


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Just buy a couple once (if) they’re back in stock for $70/piece.


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Does anyone have pictures of the protoxide regulators being installed?

For the driver side: I had to cut the mount so it could be at an angle because it’s too long and hits the intake runners. But now, it’s very close to the fuel injector.

For the passenger side: the engine hoist bracket and belt cover block it.

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Also, on the passenger side, the vacuum line nipple hits the intake runners blocking mounting.

I wired these guys the money since they took no other form of payment… I wonder why

 

For the protoxide fuel pressure regulators:

So far it has taken me about 22 hours designing, fabricating, fitting/testing, and modifying mounts. I bought “plain steel 16 gauge” from Home Depot. I heat it with a torch to glowing red prior to bending, I cut it with a hacksaw and dremel tool.

Attached is the mount design that works. Your goal is to side step it inward, and lengthen the mount, so it mounts above the belt cover in the valley of the belt cover.

Below are some pictures of the mount that worked, but I changed the bends a bit to lower it and extend it further forward.

The coolant hose, the bulky wiring harness mounted on the belt covers, the intake runners, the fuel line itself, then the coolant hard lines that run laterally on the firewall will block the fuel line connectors if it’s too far forward - are all obstacles to consider in the design.

I haven’t connected the fuel lines yet, or adjusted the pressure. THIS IS A ROYAL WASTE OF TIME!!!!!!!!! Do not buy these….. I wish I spent the extra $600 to buy oem. I also reached out to protoxide and the only help they gave was a 10 second video filmed on a potato:

Protoxide should be selling mounts for this if they want to say it fits a 348. Anything fits if you make enough modifications….. they didn’t even provide pictures or design specs for a mount. I consider it a scam to sell something that they say fits, when it doesn’t, and they don’t say that modifications and fabrication is required in the product description.

Well…. One side down, let’s hope the other doesn’t take so long.

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View attachment 3699982 View attachment 3699983 View attachment 3699984


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