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A Miracle?????

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Old 08-24-2004, 10:55 PM
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Car: 1986 Pontiac Trans Am
Engine: 305 LG4
Transmission: Borg Warner 5 Speed
A Miracle?????

I've had a fuel starvation/vapor lock problem for 3 or 4 years now. I put a phenolic carb spacer/ fuel pump spacer, and took out the hard line that the "retards" at gm ran right next to the block and put in a rubber line. All to no end. I run down the 1/4 mile and I can't even use my secondaries cause the car starved for fuel at high speed and when it was hot. But no More BABY! I thought it would be cool to add one of those clear glass fuel filters. and so I did, and I took out the old paper one in the carb and the spring that sits with it. Now I can use all my gears all the way up to te shift point, witht he secondaries! Its wonderful, but not at all what I intended to do. And it was like 85 F today and I had no problems with it. I cant wait until the next street legals! Just thought I would share. :lala: :lala: :lala:
Old 08-25-2004, 01:46 PM
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Glad to hear about your success. The paper filter itself is rarely a problem until you get up over about 300HP, if it's fresh. However there are 2 quirks that sometimes cause problems with them such as you describe....

1. Fuel flows into the center of the filter element and then through the media to the outside. This means that even if the filter is plugged solid it will look fine from the outside.

2. The little check valve in the end of it is flaky. It's a little spring loaded plug in the end where the fuel flows into it. I take this assembly out of the end of the filter, remove the plug and spring and then put the rubber part back in the end of the filter since it seals the filter to the housing, preventing unfiltered fuel from leaking past.

External block temps aren't nearly hot enough to cause problems from overheating the fuel. Running past an exhaust tube or header IS hot enough, however.
Old 08-25-2004, 02:16 PM
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I'll add one:

Removing the steel fuel line and replacing it with rubber is not real bright; that's a good way to burn your car to the ground, as is not impossible when (not if) the fuel line ruptures the way they always do sooner or later.
Old 08-26-2004, 12:38 AM
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Car: '87 Camaro SC
Engine: 305 LG4
Transmission: 700r4
I thought it would be cool to add one of those clear glass fuel filters. and so I did, and I took out the old paper one in the carb and the spring that sits with it. Now I can use all my gears all the way up to te shift point, witht he secondaries! Its wonderful, but not at all what I intended to do. And it was like 85 F today and I had no problems with it.

I've been having the same problem with my secondaries. I guess I will have to try that glass fuel filter. I'm using the paper filter now that I put in about 2 months ago. I sure hope that will work on mine!
Old 08-27-2004, 10:51 PM
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Car: 1986 Pontiac Trans Am
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Transmission: Borg Warner 5 Speed
Well the fuel line is pretty new, and its got that fake steel reinforcement stuff on it, but I'm not too worried about it. Thanks for the part about not being very bright, ya know you could have just warned me, without the comment.
Old 08-27-2004, 11:15 PM
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Car: 1966 impala , 1998 sebring vert,1978 buick regal turbo, 1991 chevy silverado 3/4ton 4x4 lifted
Engine: 283, 2.5,3.8 turbo 350
Transmission: powerglide,auto overdrive, th350,4L80
Originally posted by SkyWarrior
Well the fuel line is pretty new, and its got that fake steel reinforcement stuff on it, but I'm not too worried about it. Thanks for the part about not being very bright, ya know you could have just warned me, without the comment.
LOL.......

anyway id change that glass fuel filter too or atleast keep a good eye on it i know alot of people that have had them leak on them including myself ....and i wont tell you your not to bright ill just say your not the sharpest tool in the shed...LOL..sorry ....j/k
Old 08-27-2004, 11:34 PM
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RB is right about the fuel line... thats why many race tracks have a limit about how many inches of it you can actually use in your fuel system. Its definitely not as durable or as safe as a steel line.

IMO, you should spend the $3 on peice of steel fuel tubing (repair tubing its called) and rent a tubing bender. You want to use as little of the rubber line as you can.

As for the fuel filter, I like the in-line steel ones. The one I use is a stock replacement one for a '70 Chrysler 426 Hemi. It was about $3 at the parts store I work at.
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