Plumbing a mech fuel presure gage?
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I put in an electric Gaffrig gage to monitor my tweaked 575sci and I've been satisfied that's it's accurate enough to alert me to a problem. I have mine plumbed to a boost referenced fuel regulator. We did originally set the fuel pressure however with a mechanical gage at the regulator and if there is ever a question you can temporarily throw a mechanical on at the regulator to double check that your electric is working properly.
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I agree with the potential for a leak, but a braided line such as an Aeroquip would probably outlast several motors before failure.
A mechanical gauge on a blower motor is the only insurance that you have true fuel pressure. Go lean and plan on dropping a few $$$.
Don't use the plastic hose unless its nylon. Parker makes a line called Paraflex in several different materials. Nylon is rated for fuel.
CIG 3 seems to have the best recommendation. Whats the part number, I can't locate on the Summmit site?
A mechanical gauge on a blower motor is the only insurance that you have true fuel pressure. Go lean and plan on dropping a few $$$.
Don't use the plastic hose unless its nylon. Parker makes a line called Paraflex in several different materials. Nylon is rated for fuel.
CIG 3 seems to have the best recommendation. Whats the part number, I can't locate on the Summmit site?
Last edited by Elite Marine; 09-15-2004 at 08:38 PM.
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Here's info on the Autometer Isolator. I'm definately going this route!
http://hp.autometer.com/techtips/faq...s_on_dash.html
http://hp.autometer.com/techtips/faq...s_on_dash.html
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Aeroquip makes a PTFE hose size -3 with reusable fittings you can install at each end. This hose is rated to 3000psi burst. I have used it for my mech oil pressure lines. Just cut it to the size you need. 40 feet of it cost me about $300 with fittings
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Use an isolator with premade steel braded line if you must use a mechanical gauge. I would never use that nylon line because if that line should ever get a hole rubbed in it then you have a dangerous situation. In the event of an accident and the line was severed you would have a flame thrower under your dash.
Never use that nylon line in any application involving flamable liquid. If you read the instructions it will warn you not to do so..
Roby
Never use that nylon line in any application involving flamable liquid. If you read the instructions it will warn you not to do so..
Roby