When A Problem Comes Along U Must Chip Whicheeeee Chip It Good
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Joined: Jul 2004
Posts: 97
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From: IOWA
When A Problem Comes Along U Must Chip Whicheeeee Chip It Good
So i added a straight pipe and my truck now runs like crap. Do i need to ad a chip or reprogram my trucks computer and if i do how do i go about it or where do i go for that.
98 f150 5.4 all stock except for now single strait pipe.
ben
98 f150 5.4 all stock except for now single strait pipe.
ben
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Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
Hi Ben,
Actually, it has nothing to do with "backpressure" per se, that is a common myth. When you open up the exhaust flow too much (and/or do something really dumb like gut or remove the catalytic converters), you slow down the speed of the spent exhaust gases, thus drastically reducing the scavenging effect - *that* is what reduces the lower rpm torque, and kills performance. (On top of loosing heat in the exhaust if you remove the cats, which also reduces scavenging.)
Now I don't know exactly what you've done, where you started this "straight pipe," etc., so you'll need to give us a call for details.
Generally speaking, a chip is not going to fix a "bad" exhaust mod. Call us so we can go over with you exactly what you did, and some other things about the vehicle & we can then tell you what's happened & what you actually need to do to fix it.
Of course, having our custom tuning installed *will* be the single best bang-for-the-buck performance enhancement you can make, as nothing else for the same or less cost will improve performance as much - so a good tune is *always* worth doing, regardless of whatever other mods are on the vehicle - just FYI.
Best of luck,
Actually, it has nothing to do with "backpressure" per se, that is a common myth. When you open up the exhaust flow too much (and/or do something really dumb like gut or remove the catalytic converters), you slow down the speed of the spent exhaust gases, thus drastically reducing the scavenging effect - *that* is what reduces the lower rpm torque, and kills performance. (On top of loosing heat in the exhaust if you remove the cats, which also reduces scavenging.)
Now I don't know exactly what you've done, where you started this "straight pipe," etc., so you'll need to give us a call for details.
Generally speaking, a chip is not going to fix a "bad" exhaust mod. Call us so we can go over with you exactly what you did, and some other things about the vehicle & we can then tell you what's happened & what you actually need to do to fix it.
Of course, having our custom tuning installed *will* be the single best bang-for-the-buck performance enhancement you can make, as nothing else for the same or less cost will improve performance as much - so a good tune is *always* worth doing, regardless of whatever other mods are on the vehicle - just FYI.
Best of luck,