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Need intake system opinions!

 
  #1  
Old 12-01-2009, 01:02 PM
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Question Need intake system opinions!

I have a '90 302 in my 86 f150. they are completely different set up for the intake, on the 86 the air box rests on the motor.. on the 90 its right behind the washer fluid box. what can i do for a high performance intake? people have said the cones are pointless cause it just sucks in hot air from the engine bay, so any help would be appreciated!
 
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Old 12-01-2009, 01:08 PM
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Put the '90 airbox and intake tubes on it and go get a a snorkle from an I6 truck.. that's the piece that goes from the rad support to the bottom of the airbox and it's a much better design on the I6 and 460 trucks. That setup with any drop-in filter will support 300+hp and you got some work to do to get that truck motor up there.
 
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Old 12-02-2009, 11:25 AM
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Yeah, i got headers on it with straight pipe then glasspacks... so I really do need good air intake, and i plan on getting a super chip!
 
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Old 12-02-2009, 12:04 PM
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Give the chip a pass.. it's not buying you anything you can't get for free. Get a timing light and advance the distributor until the engine pings under load and then back it off a degree or two.
 
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Old 12-03-2009, 11:05 AM
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what do you mean pings under load?
 
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Old 12-03-2009, 12:45 PM
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Pinging is pre-ignition of the A/F mixture that sorta sounds like a ping or rattle in the engine when it is under load.. trying to accelerate or climb a grade without downshifting at highway speeds for example. This should not happen normally and can be brought on by advancing the ignition too far or by a dirty injector that causes a cylinder to be leaner than the rest or even a buildup of carbon on top of the pistons.
 
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Old 12-03-2009, 02:20 PM
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Youll be able to hear the ping believe me.
 
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Old 12-03-2009, 10:17 PM
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I second what Conanski said. Just fit the 90 air box on your truck and get the I6/460 lower intake tube. Also, the chip is a waste of money.

The pinging almost sounds like a hissing sound.
 
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Old 12-04-2009, 11:32 AM
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what do you mean the lower tube from the inline... like the tube from the '90 box to the headlight or down below?
 
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Old 12-04-2009, 05:53 PM
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Yeah, thats the one. The other trucks have one that goes up on top of the radiator. The lower one like we are talking about is the better one.
 
 
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