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Re: WHERE TO MOUNT THE FUEL ISOLATOR
[Re: moparbud]
#221710
02/11/09 10:56 PM
02/11/09 10:56 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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Has to be at least 6" forward of the firewall, they dont want something to explode and take it out, mine is about 4" forward but no one has said a thing plus mine is way out board mounted to the chassis tube. Sorry no pic 
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Re: WHERE TO MOUNT THE FUEL ISOLATOR
[Re: Al_Alguire]
#221712
02/12/09 12:08 AM
02/12/09 12:08 AM
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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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Quote:
If you are talking the isolator that allows you to run the fuel pressure gauge in the cockpit my suggestion is to mount in the GARBAGE CAN! Those things are VERY slow to react and if you REALLY need to know your fuel pressure are worthless. Just my 
I happen to like mine and I checked it against a gauge,
its within a 1/4 psi
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Re: WHERE TO MOUNT THE FUEL ISOLATOR
[Re: MR_P_BODY]
#221713
02/12/09 12:20 AM
02/12/09 12:20 AM
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Joined: Jan 2003
Posts: 19,361
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,361
Las Vegas
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Mr P. I am by no means saying they are not accurate. My issue is they are VERY slow to react to changes, ie loosing pressure and will not always show a 1-2 loose quickly. I have personally see two cars loose motors, both nitrous due to using them. After doing some data logging, and in car video I was convinced to loose mine. I have seen this with both the Longacre and Auto meter isolaters. Just my experiences.
"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: WHERE TO MOUNT THE FUEL ISOLATOR
[Re: Duner]
#221719
02/12/09 10:04 AM
02/12/09 10:04 AM
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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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Quote:
The fuel isolators might not show a 1 or 2 psi fluctuation quickly enough for low pressure use, but for EFI stuff it is worth it's weight in gold. I regularly put 150 psi of pressure thru my fuel system. The electric sending units cannot handle that kind of pressure, and are VERY scary when they fail.
Ever seen fuel boil while being sprayed directly onto the headers and not catch fire? No sparks allowed.
Mine doesnt use a electrical sender its a mech gauge
one psi in on the one side of the diaphram and one
psi on the other side of the diaghram to the gauge.
One thing thats real important with this style of
unit is the side going to the gauge is filled with
glycerin and its VERY important that its FULL otherwise
you will compress the air thats in there
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