Fitech Fuel Regulator Fix - Chevelle Tech
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post #1 of 10 (permalink) Old Mar 7th, 17, 9:03 PM Thread Starter
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Dan
 
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Fitech Fuel Regulator Fix

After recently upgrading fuel system with surge tank and dual 044 type pumps had excess fuel pressure, with battery at 13.3v and engine not running was getting 70psi and 370lph (97gph) from return line, once engine was running pressure was reading 84psi.

Decided an External Regulator was required, was hesitant to simply fit an external regulator with return and feed line to Throttle Body as wanted continual flow through the Throttle Body, also did not want fuel having to pass through two regulators.

While researching options came across this Fuel Rail Adaptor which suits the Bosch Regulator Port, which then allows Fuel to pass through an External Regulator capable of high flow systems, my choice of Regulator was a the Turbosmart FPR1200 which features -6 Ports.


The Adaptor is listed to suit Audis & Ford Falcon XR6 Turbo when using the stock fuel rail, the latter Ford Inline 6 has quite the following here in Australia as capable of some substantial power. The Adaptor has dual 1/8” NPT Port, there are multiple companies making this Adaptor they are as below.
Aeroflow AF64-2062
Turbosmart TS-0402-1006
Proflow PFE684


The Fuel Regulator Retainer would not fit over Adaptor so had to modify it so that it slides down over one Adaptor in place, then found the M5 Socket Heads Screws clashed with the 1/8”NPT-6AN Adaptors, so had to further modify Retainer to suit Countersink Screws.


Adaptor directs fuel to Regulator then back through itself, by angling the AN Fitting just right was able to get Air Filter Base back on.


Conducted a flow test with new setup, at 13.3v & 58psi managed to flow 440lph (115gph).

Heading back to Dragstrip this weekend, should be end to fuel starvation issues.
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1972 Chevelle - All Steel - 3920lbs
549ci BBC, FiTech Meanstreet 680+ TQ & HP
Hughes TH400 & Moser 9" 3.7s
10.70 @ 124.5mph 1.47 60ft
Front: Calvert 90/10s & Moog 5390
Rear: AFCO D/As & Moog 6321
Spohn Control Arms & ARB


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post #2 of 10 (permalink) Old Mar 7th, 17, 10:32 PM
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Bob
 
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Thumbs up Re: Fitech Fuel Regulator Fix

Quote:
Originally Posted by Harms_Way View Post
After recently upgrading fuel system with surge tank and dual 044 type pumps had excess fuel pressure, with battery at 13.3v and engine not running was getting 70psi and 370lph (97gph) from return line, once engine was running pressure was reading 84psi.

Decided an External Regulator was required, was hesitant to simply fit an external regulator with return and feed line to Throttle Body as wanted continual flow through the Throttle Body, also did not want fuel having to pass through two regulators.

While researching options came across this Fuel Rail Adaptor which suits the Bosch Regulator Port, which then allows Fuel to pass through an External Regulator capable of high flow systems, my choice of Regulator was a the Turbosmart FPR1200 which features -6 Ports.


The Adaptor is listed to suit Audis & Ford Falcon XR6 Turbo when using the stock fuel rail, the latter Ford Inline 6 has quite the following here in Australia as capable of some substantial power. The Adaptor has dual 1/8” NPT Port, there are multiple companies making this Adaptor they are as below.
Aeroflow AF64-2062
Turbosmart TS-0402-1006
Proflow PFE684


The Fuel Regulator Retainer would not fit over Adaptor so had to modify it so that it slides down over one Adaptor in place, then found the M5 Socket Heads Screws clashed with the 1/8”NPT-6AN Adaptors, so had to further modify Retainer to suit Countersink Screws.


Adaptor directs fuel to Regulator then back through itself, by angling the AN Fitting just right was able to get Air Filter Base back on.


Conducted a flow test with new setup, at 13.3v & 58psi managed to flow 440lph (115gph).

Heading back to Dragstrip this weekend, should be end to fuel starvation issues.
That is awesome!


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post #3 of 10 (permalink) Old Mar 10th, 17, 9:55 AM
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Tj
 
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Re: Fitech Fuel Regulator Fix

Interesting. Not a product that I would have thought existed. Cool find and fix.

Sorry no Chevelle, 73 Cadillac Eldorado - Fairly stock low comp 500cid.
FiTech Go4 600 - Timing control via gutted 7 pin large cap HEI - Fuel RobbMc Powersurge with returns.
Previous system was Megasquirt w/Holley TBI so I am not new to DIY EFI
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post #4 of 10 (permalink) Old Mar 11th, 17, 9:11 AM Thread Starter
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Dan
 
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I was just flicking through catalogue when came across, immediately recognized shape, was aware that Bosch Regulator was used on Audis & VWs but did not know about Ford XR6 Turbo for which it is mostly utilised.
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post #5 of 10 (permalink) Old Mar 11th, 17, 9:17 AM Thread Starter
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Dan
 
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Re: Fitech Fuel Regulator Fix

By the way.



Best upgrade my signature.
DragRac69 and rel3rd like this.

1972 Chevelle - All Steel - 3920lbs
549ci BBC, FiTech Meanstreet 680+ TQ & HP
Hughes TH400 & Moser 9" 3.7s
10.70 @ 124.5mph 1.47 60ft
Front: Calvert 90/10s & Moog 5390
Rear: AFCO D/As & Moog 6321
Spohn Control Arms & ARB


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post #6 of 10 (permalink) Old Mar 11th, 17, 12:18 PM
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Chris
 
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Re: Fitech Fuel Regulator Fix

Very cool.

What was your old PB with the FiTech?

1971 Chevelle SS454, T56 Magnum 6 speed, 3.31 Posi

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post #7 of 10 (permalink) Old Mar 11th, 17, 4:12 PM Thread Starter
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Dan
 
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Re: Fitech Fuel Regulator Fix

Quote:
Originally Posted by -SS454- View Post
Very cool.

What was your old PB with the FiTech?
11.22 @123 , using FCC & full exhaust.

Also went [email protected] with Tanks Inc and running just Headers with foot long extensions.

1972 Chevelle - All Steel - 3920lbs
549ci BBC, FiTech Meanstreet 680+ TQ & HP
Hughes TH400 & Moser 9" 3.7s
10.70 @ 124.5mph 1.47 60ft
Front: Calvert 90/10s & Moog 5390
Rear: AFCO D/As & Moog 6321
Spohn Control Arms & ARB


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post #8 of 10 (permalink) Old Mar 11th, 17, 7:02 PM
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Chris
 
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Re: Fitech Fuel Regulator Fix

Dan, when were those time slips from?
Recently ?
If so, It's nice to know the meanstreet will support a 10 second ride!

73 nova,3515#(all steel)Pump gas!(91octane)406ci N/A, best 1/4,1.45 '60,[email protected],10.6 @ 122.38, short shifting,NO tuning!


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post #9 of 10 (permalink) Old Mar 11th, 17, 8:01 PM Thread Starter
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Dan
 
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Re: Fitech Fuel Regulator Fix

Quote:
Originally Posted by WHT/73 View Post
Dan, when were those time slips from?
Recently ?
If so, It's nice to know the meanstreet will support a 10 second ride!
Passes were made yesterday evening, been over Meanstreet Datalogs quickly, was doing it's job.

Made several low 11 second passes beforehand, played around with tire pressure, launch retard on MSD programmable and finally trans-brake & 2-step operation.

1972 Chevelle - All Steel - 3920lbs
549ci BBC, FiTech Meanstreet 680+ TQ & HP
Hughes TH400 & Moser 9" 3.7s
10.70 @ 124.5mph 1.47 60ft
Front: Calvert 90/10s & Moog 5390
Rear: AFCO D/As & Moog 6321
Spohn Control Arms & ARB


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post #10 of 10 (permalink) Old Mar 11th, 17, 8:56 PM
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Chris
 
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Re: Fitech Fuel Regulator Fix

Awesome!
Nice job!

73 nova,3515#(all steel)Pump gas!(91octane)406ci N/A, best 1/4,1.45 '60,[email protected],10.6 @ 122.38, short shifting,NO tuning!


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