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Re: Fuel pressure gauge isolator
[Re: cdwmotorsports]
#2475662
04/01/18 11:20 PM
04/01/18 11:20 PM
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Joined: Feb 2006
Posts: 608 TN
1DGEMAN
mopar
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mopar
Joined: Feb 2006
Posts: 608
TN
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I had one of those on a NHRA Stocker. Was mounted on the inner fender by the firewall. Never questioned. On another note, I never liked the gauge it would change pressure with temperature and altitude wasn't very accurate. Autometer makes a digital gauge that is going in my new car.
Real Men shift for themselves
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Re: Fuel pressure gauge isolator
[Re: cdwmotorsports]
#2475712
04/02/18 12:28 AM
04/02/18 12:28 AM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I mounted mine on the fender.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Fuel pressure gauge isolator
[Re: cdwmotorsports]
#2476027
04/02/18 12:54 PM
04/02/18 12:54 PM
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Joined: Jan 2003
Posts: 19,363 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,363
Las Vegas
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Never liked isolators. They are VERY slow to react if there is a problem and the aforementioned issues.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Fuel pressure gauge isolator
[Re: cdwmotorsports]
#2476087
04/02/18 02:06 PM
04/02/18 02:06 PM
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Joined: Nov 2004
Posts: 16,480 On the run…
BloFish
I Live Here
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I Live Here
Joined: Nov 2004
Posts: 16,480
On the run…
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So is there a better mouse trap?
It really doesn't matter whether you win or lose… as long as you look good doing it!
‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK
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Re: Fuel pressure gauge isolator
[Re: BloFish]
#2476152
04/02/18 03:10 PM
04/02/18 03:10 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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So is there a better mouse trap? The best mouse trap is data logging. I don't want all the crap that goes with it at this point. So I just use a gauge.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Fuel pressure gauge isolator
[Re: CMcAllister]
#2476168
04/02/18 03:52 PM
04/02/18 03:52 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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If you do use a isolator you HAVE to have it FULL of oil otherwise it will be slow and give a bogus reading and when I say full I mean ZERO air.. I used them in the past but now days I use the electric gauges so I dont need the isolators
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Re: Fuel pressure gauge isolator
[Re: cdwmotorsports]
#2476176
04/02/18 04:05 PM
04/02/18 04:05 PM
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Joined: Dec 2005
Posts: 11,566 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,566
Fulton County, PA
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I don't think I would use a mechanical gauge for anything anymore except for brake pressure.
If the results don't match the theory, change the theory.
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Re: Fuel pressure gauge isolator
[Re: CMcAllister]
#2476222
04/02/18 06:14 PM
04/02/18 06:14 PM
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Joined: Feb 2006
Posts: 608 TN
1DGEMAN
mopar
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mopar
Joined: Feb 2006
Posts: 608
TN
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I don't think I would use a mechanical gauge for anything anymore except for brake pressure. Autometer also makes a digital gauge 1600 psi for brake pressure. I run a stick shift car so only need 100-200 psi to hold on the line. It is so much easier to run wire instead of steel line.
Real Men shift for themselves
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Re: Fuel pressure gauge isolator
[Re: MR_P_BODY]
#2476280
04/02/18 08:07 PM
04/02/18 08:07 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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If you do use a isolator you HAVE to have it FULL of oil otherwise it will be slow and give a bogus reading and when I say full I mean ZERO air.. I used them in the past but now days I use the electric gauges so I dont need the isolators My isolator uses antifreeze not oil. I didn't know they made an isolator that used oil. And you do have to get ALL the air out of the line. Or it will drive you bonkers.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Fuel pressure gauge isolator
[Re: madscientist]
#2476460
04/02/18 09:29 PM
04/02/18 09:29 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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If you do use a isolator you HAVE to have it FULL of oil otherwise it will be slow and give a bogus reading and when I say full I mean ZERO air.. I used them in the past but now days I use the electric gauges so I dont need the isolators My isolator uses antifreeze not oil. I didn't know they made an isolator that used oil. And you do have to get ALL the air out of the line. Or it will drive you bonkers. Basically they make any one with a fluid that doesnt freeze.. mine are oil( a very thin oil)
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Re: Fuel pressure gauge isolator
[Re: MR_P_BODY]
#2476645
04/03/18 08:37 AM
04/03/18 08:37 AM
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Joined: Aug 2003
Posts: 4,980 new jersey usa
11secdart
master
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master
Joined: Aug 2003
Posts: 4,980
new jersey usa
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I just went thru this a few weeks ago as I moved my fuel pressure gauge from the cowl to inside the car. I mounted my isolator on the inner fender by the master cylinder. I used 50/50 mix anti- freeze as recommended. It was kind of a pia to get the anti - freeze to the right level to get the gauge to work using a squeeze bottle to add it to the guage and isolator. I also had to bleed the fuel side several times to get it to work. I finally got it right and the car looks better with out the gauge outside we're its been for 35 years.
Last edited by 11secdart; 04/03/18 08:37 AM.
68 Dart 410 / 904 92 D150 original owner 21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4 23 Audi Q5 16 Honda HRV
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Re: Fuel pressure gauge isolator
[Re: 11secdart]
#2476658
04/03/18 10:10 AM
04/03/18 10:10 AM
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Joined: Mar 2003
Posts: 1,449 Martinsville, IN
cdwmotorsports
OP
pro stock
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OP
pro stock
Joined: Mar 2003
Posts: 1,449
Martinsville, IN
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I just went thru this a few weeks ago as I moved my fuel pressure gauge from the cowl to inside the car. I mounted my isolator on the inner fender by the master cylinder. I used 50/50 mix anti- freeze as recommended. It was kind of a pia to get the anti - freeze to the right level to get the gauge to work using a squeeze bottle to add it to the guage and isolator. I also had to bleed the fuel side several times to get it to work. I finally got it right and the car looks better with out the gauge outside we're its been for 35 years. I dont have inner fenderwells as I have fenderwell headers. I don't think I would use a mechanical gauge for anything anymore except for brake pressure. All I use is mechanical gauges. I know they will work no matter what happens unlike data loggers and computers. I will look into an electrical fuel pressure gauge.
eBay-cdwmotorsports
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