Engine 5.0 HO carb air cleaner question

nothwoods

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Jun 10, 2013
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I'm running an air cleaner from a 1985 GT on my car, the dual snorkel one that came on a four barrel. Does anyone have any dyno or drag test data on these, or know whether they are considered good for performance? Not sure if it's better because it's getting air from outside of the engine bay or if an open type air filter would be better since it's less restrictive. It's a mild engine, making about 255 rwhp based on 1/4 trap speed. probably experiment with it more next spring.
 
What do you plan on doing with the car??... If its mostly street driven I would think clean air thats filtered well would be 1st choice..
 
It’s a street strip car, I’ll run a filter either way, just mainly wondering if these air cleaners create too much restriction. I figure it’s probably a good unit since it’s pulling outside air, I do have both of the fender snorkels in place. Didn’t know if there might be a consensus on whether they’ve been found to be good for performance.
 
Reusing my stock dual snorkel but my car will not be a strip car.... I can say the filter itself does not seem very large......
Some " restoration" pics of mine....
DSCF1512.webp
DSCF1517.webp
 
That looks nice, well worth the effort considering what those things are going for these days. I was lucky, I wanted to run one on my car and a buddy had one that he gave me.
 
I'm running an air cleaner from a 1985 GT on my car, the dual snorkel one that came on a four barrel. Does anyone have any dyno or drag test data on these, or know whether they are considered good for performance? Not sure if it's better because it's getting air from outside of the engine bay or if an open type air filter would be better since it's less restrictive. It's a mild engine, making about 255 rwhp based on 1/4 trap speed. probably experiment with it more next spring.
i looked into this a lot. car craft ran one on a mid 12 sec car. it gained a tenth over an open element. ford thought it was worth it and so do i. i'm sure it helps cool the whole intake system and gotta have a little ram air effect also. fits under the hood with the perf rpm, 600 holley and 1/4 inch thermal spacer no problem. not to mention it's less of a fire hazard and looks cool as hell. i took the the heat door plumbing off mine since it's a summertime car only
 

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That same air cleaner assembly was used on 460cid engines, so there's no way it won't flow enough for a stock or stockish 302, imo.




Details please.
drill the heads off rivets holding them on, cut some sheet metal pieces bigger than the holes, sand the attachment areas to bare metal. few tack welds to hold them in place. used regular jb weld as filler, let dry and sand them smooth.
 
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drill the heads off rivets holding them on, cut some sheet metal pieces bigger than the holes, sand the attachment areas to bare metal. few tack welds to hold them in place. used regular jb weld as filler, let dry and sand them smooth.
where do i search for what ign timing folks are running with gt40p heads?
 
where do i search for what ign timing folks are running with gt40p heads?
Depending on modifications most kinda like 14* BTDC
I have used a vacuum gauge to set timing but it's mostly by ear, of course modifications like forced induction needs more precise parameters.
you got a 'build' thread around here?
 
Depending on modifications most kinda like 14* BTDC
I have used a vacuum gauge to set timing but it's mostly by ear, of course modifications like forced induction needs more precise parameters.
you got a 'build' thread around here?
here's what i have. 2000 explorer engine +.030, 0 decked, 4cc hyper flat tops. .040 quench. 9.4-1 compression. stock p heads. comp 35-440-8 cam, .512 lift, 220 dur @ .050, 110 lobe sep, 106 intake c/l. cam is ground 4 degrees adv., perf rpm, holley 600 street avenger, pertronix flame thrower ign. stock ford valve train except for alex's parts beehive valve springs. shorty headers. i see some people say they don't need much timing like 12 initial, 31 advance. i'd like to be pretty close to start out.