Potential Fuel Pressure Regulator Solution - Page 7 - ZR-1 Net Registry Forums

GOLDCYLON · 01-25-2018

Cliff is it me or does that piece look more "Stock" than stock? It just follows the form factor better like stainless oil cooler lines. It looks like that was like it was suppose to... or meant to... look like as "serviceable" vs. non serviceable. GC

Dynomite · 01-25-2018

Quote:

Originally Posted by GOLDCYLON

Cliff is it me or does that piece look more "Stock" than stock? It just follows the form factor better like stainless oil cooler lines. It looks like that was like it was suppose to... or meant to... look like as "serviceable" vs. non serviceable. GC

LOL........I am not sure what you are thinking but this IFPR that Phil designed with the Allen Head screws is a very nice piece of work and is a perfect fit with the other Allen Head Stainless Steel bolts on the Plenum and coolant pipes.

And it is completely serviceable without removing anything else. The only item you would want to service would be the Delphi Fuel Pressure Regulator that Phil installed in the modified Stock Fuel Pressure Regulator Housing. I expect that to change out the Delphi would take a couple of minutes with only a small Allen Wrench.

GOLDCYLON · 01-25-2018

Quote:

Originally Posted by Dynomite

LOL........I am not sure what you are thinking but this IFPR that Phil designed with the Allen Head screws is a very nice piece of work and is a perfect fit with the other Allen Head Stainless Steel bolts on the Plenum and coolant pipes.

And it is completely serviceable without removing anything else. The only item you would want to service would be the Delphi Fuel Pressure Regulator that Phil installed in the modified Stock Fuel Pressure Regulator Housing. I expect that to change out the Delphi would take a couple of minutes with only a small Allen Wrench.

A couple of minutes IS a total win !

Dynomite · 01-25-2018

Quote:

Originally Posted by GOLDCYLON

A couple of minutes IS a total win !

The Delphi was rotated just a tad counterclockwise in the photo which only took a minute to loosen the Allen Head screws
It definitely is a thing of beauty

I was trying to hot wire the Fuel Pumps using the Fuel Pump Test Connection which for the early 1990 (first 500) Marc says resides to the right of the battery. Marc also said it is sometimes hidden. I removed the battery and yes......it is definitely hidden as it was nowhere to be found

So....to test higher fuel pressure I just removed the vacuum line at idle and got the 52 psi fuel pressure. Again......I have run into a couple Failed Fuel Pressure Regulators and they DO require removal of the Plenum to fix. NOT ANY MORE

DO NOT TOSS A FAILED FUEL PRESSURE REGULATOR

Dynomite · 01-29-2018

Phil.......can I just keep this one

I have been driving every day and even a 100 mile trip.....
Perfect all the way.....NO ISSUES.....

Just let me keep this Improved Fuel Pressure Regulator on the ZR-1 for a while longer at least until mid April if possible as I will park this 1990 #72 for a while at that time.

Jagdpanzer · 01-30-2018

Sure Cliff, keep it as long as you want.

Sent from my iPhone using ZR-1 Net Registry

WVZR-1 · 01-30-2018

Quote:

Originally Posted by Dynomite

It looks like the Delphi should be rotated just a tad counterclockwise in the photo which would take only a minute to loosen the Allen Head screws but I did not want to mess with this prototype as was not sure if Phil used Loctite or not. Did not want to loosen anything on this prototype as there was NO leaks when I received it

It definitely is a thing of beauty

Dremel the bracket for nipple clearance I'd think. Orientation of the FPR looks to be fine.

WVZR-1 · 01-30-2018

Quote:

Originally Posted by Dynomite

No......it looks just fine because the rubber connector is bent.......It would only take a second to rotate counter clockwise with Allen Head loose which I did not want to loosen on prototype. You can see the nipple in right photo is pointed to far clockwise.

I'm thinking a couple minutes counter-clockwise and you'll have issues with the retention ring hardware. What was and what is isn't relevant. Look at the Lingenfelter adjustable in post #26.

WVZR-1 · 01-30-2018

OR you could have used the "Dremel" and been done before NOON

You need to remember it's an "engineering sample" that you were afforded the opportunity to "test drive" - that particular one is as it is!!! The likely hood of releasing the FPR and rotating it and compressing again into the cavity I believe creates potential sealing issues. The original Delphi using the snap-ring retention into a formed/rolled cavity I'm quite sure was susceptible to leaking when removed and reinstalled. I've had many 3800's that used that style of FPR.

5ABI VT · 02-02-2018

Can put me in line

! not too long ago I started wondering if welding an fittings to the rails and installing my own adjustable unit was the way to go but I have no need for an adjustable unit.. this looks great =D>

01-25-2018	#61
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Potential Fuel Pressure Regulator Solution Cliff is it me or does that piece look more "Stock" than stock? It just follows the form factor better like stainless oil cooler lines. It looks like that was like it was suppose to... or meant to... look like as "serviceable" vs. non serviceable. GC __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 01-25-2018 at 08:06 PM.

01-29-2018	#65
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,797	Improved Fuel Pressure Regulator Phil.......can I just keep this one I have been driving every day and even a 100 mile trip..... Perfect all the way.....NO ISSUES..... Just let me keep this Improved Fuel Pressure Regulator on the ZR-1 for a while longer at least until mid April if possible as I will park this 1990 #72 for a while at that time. __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 03-15-2018 at 11:43 AM.

01-30-2018	#66
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,661	Re: Potential Fuel Pressure Regulator Solution Sure Cliff, keep it as long as you want. Sent from my iPhone using ZR-1 Net Registry __________________ Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake

01-30-2018	#69
WVZR-1 Join Date: Oct 2004 Posts: 1,890	Re: Potential Fuel Pressure Regulator Solution OR you could have used the "Dremel" and been done before NOON You need to remember it's an "engineering sample" that you were afforded the opportunity to "test drive" - that particular one is as it is!!! The likely hood of releasing the FPR and rotating it and compressing again into the cavity I believe creates potential sealing issues. The original Delphi using the snap-ring retention into a formed/rolled cavity I'm quite sure was susceptible to leaking when removed and reinstalled. I've had many 3800's that used that style of FPR. Last edited by WVZR-1; 01-30-2018 at 08:29 PM.

02-02-2018	#70
5ABI VT Join Date: Jun 2013 Location: Toronto Posts: 783	Re: Potential Fuel Pressure Regulator Solution Can put me in line ! not too long ago I started wondering if welding an fittings to the rails and installing my own adjustable unit was the way to go but I have no need for an adjustable unit.. this looks great =D>