exhaust ?
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Senior User
Joined: May 2004
Posts: 398
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From: london, ontario
exhaust ?
hi all. last week i blew my pass header to pieces. so i figured scrap the cast and go shorty headers. found a set no problem. figured while it's getting shipped to me i'll pull the old ones and clean the edge of the block before the snow flies. then i couldn't get the bolts off that hold the pipe to the manifold, couldn't get my impact in, tried long bars, adjustables, heat, lubes. finally got mad and cut the pipes so i could get it all out. then repeated on the other side. now i'm wondering how much of the exaust i need to put back on too drive about 1 mile to the shop that's putting the new duals on? i cut the pipes about 3' from the engine, and could put that on easy enough, or i could try to weld the pipes back together then try to fit it in the truck. the exaust that the p o put in is off of several different cars, cut, blocked, and wired up.(thank god for coathangers.lol)
do you think just the headers and 3' of pipe would be ok for 1 mile? or should i bother with the rest. i found a 2 1/4 -1 7/8 that will fit over and inside the pipes, but don't know if it's worth the time to do it.
thanks
mark
do you think just the headers and 3' of pipe would be ok for 1 mile? or should i bother with the rest. i found a 2 1/4 -1 7/8 that will fit over and inside the pipes, but don't know if it's worth the time to do it.
thanks
mark
Fleet Mechanic
Joined: Dec 2006
Posts: 1,338
Likes: 6
From: UPSTATE NY
yeah whats the deal with that rumor? i have heard it so many times that running just headers can hurt your valves or something? that a tiny bit of backpressure is healthy for the motor?
Post Fiend
Joined: Sep 2007
Posts: 6,221
Likes: 6
From: Cow Town, CA
i always thought it was more of a power/tq that the backpressure helped....
i ran my truck for 3 months with long tube headers and about 3 feet of pipe and had no problems...other then the noise.
i ran my truck for 3 months with long tube headers and about 3 feet of pipe and had no problems...other then the noise.
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Senior User
Joined: Jan 2008
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if you run just headers for a long period of time you can hurt the engine, and its presisley becouse of the back pressure issues, but on the short drive you'll be fine.
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