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Running a strraight pipe on an M

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Big Red

07-09-2003 21:26:15




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I was wondering if Running a straight pipe on a stock M engine would hurt anything or not? All opinions appreciated.




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Alvin NE WI

07-10-2003 19:39:22




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
Just your ear's. Think it doesn't, just keep it up several years, you will notice when you turn up the volume on TV to hear the late news.



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shannon

07-11-2003 21:05:50




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 Re: Re: Running a strraight pipe on an M in reply to Alvin NE WI, 07-10-2003 19:39:22  
mowed hay today with the 450 which has a straight pipe. only thing is that i forgot my earplugs. its almost midnight and my ears are still ringing too loud to get enough quiet time to fall asleep.



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Ludwig

07-10-2003 19:10:47




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
I ran my Super M like that for quite awhile. Finally got tired of getting all the exhaust in my face. If I was going to run a straight pipe now I'd at least get a section of pipe to run it up a couple feet so the exaust would clear me.



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FC

07-10-2003 09:59:13




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
This is not exactly related to your M pipe, but it reminds me of when I was much younger and I was replacing the entire exhaust on a pickup I had. The truck was a short bed and I purchased a kit for a long bed truck. It was supposed to be cut to fit the short bed trucks. At any rate, the dual pipes bolted and clamped right up without mufflers just fine exiting behind the rear wheels. It was very cold even in the shop that day and I decided I would leave it that way until it warmed up and then cut the pipes and put in the mufflers (I was curious how it would sound anyway even if a little beyond legal). I never got around to installing the mufflers until I got tired of listening to it on long trips a year or so later. Sounded good though.....fairly quiet at idle, but had a nice rap to it just prior to the 4 barrel opening under acceleration. You sure don't get that sound with the "cat-back" systems of today. The catalytic converter is very restrictive.

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rustyfarmall

07-10-2003 16:32:56




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 Re: Re: Running a strraight pipe on an M in reply to FC, 07-10-2003 09:59:13  
I own a 1971 Ford with 390 engine, it has an exhaust system just like what you described, with the exception I ran the tail pipes all the way back and out under the rear bumper, keeps things nice and quiet up in the cab, but the neighbors can hear me coming and going for at least a mile.



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TimV

07-10-2003 17:57:21




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 Re: Re: Re: Running a strraight pipe on an M in reply to rustyfarmall, 07-10-2003 16:32:56  
You too, huh? I've got a '68 1-ton Ford with a 390 and the same setup, except that I've got Black Cat headers, 2 1/2" stainless front-to-back, and I did put in dual Flowmasters to keep the Noise Gestapo off my behind. Still, it's got that nice mellow bellow that's enough to wake up half the neigborhood if I put my foot in the carb.



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mike odonnell

07-10-2003 09:02:24




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
muffler????? we don't need no stinken muffler.



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Farmall Daddy

07-10-2003 07:31:24




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
It wouldn't hurt anything when it comes to horsepower. It will be a lot louder though. I just put a straight pipe on my pullin M and found out that I had enough restriction in the silenced pipe, that it decreased it by 2 horse. If anything you may increase you horse.



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Don LC

07-10-2003 07:23:21




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
Years ago on the farm, we run both of our M's with straight pipes....as IHC made them for sale for use on the M..... ..We found that in our case we could pull the 3 -- 14" plow in 3rd. with the straight pipe in 2nd. with the stock muffler....it also ran cooler..... If you are going to be pulling hard all day,I would run it straight..... for light work and play,what ever you like.....



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alan linda

07-10-2003 06:57:03




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
When I grew up on the farm, mufflers were a luxury. I think there are far more serious problems to worry about, like unleaded gas and what it does to nonhardened valves.
The only problem with a straight pipe is to your hearing, which is a serious concern. I have significant loss from growing up listening to those things beller.



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Phlogiston

07-10-2003 05:12:58




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
Straight pipes save lives.



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rustyfarmall

07-10-2003 07:41:07




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 Re: Re: Running a strraight pipe on an M in reply to Phlogiston, 07-10-2003 05:12:58  
Only if you use at least a 3in. diameter pipe!



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rustyfarmall

07-10-2003 05:03:01




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
Won't hurt a thing.



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Bob

07-10-2003 03:00:14




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 Re: Running a strraight pipe on an M in reply to Big Red, 07-09-2003 21:26:15  
Your ears?



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CMNZPWR

07-10-2003 22:13:42




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 Re: Re: Running a strraight pipe on an M in reply to Bob, 07-10-2003 03:00:14  
It will sound pretty good. I have an O-6, which has the same motor as an M, that is currently running without a muffler. It isn't too terribly loud, but when you walk past it while it is running the pto for the auger, you can really feel it rumble in your chest. Those big 4's sound pretty good because they are turning low RPM's. Just don't put an old piece of gutter pipe in place of the muffler on an 856 diesel!! Those N/A diesels are really loud!! Turbo diesel is different though, cut out the cat on the on-road trucks, cut out the muffler, and listen to the beast all you want!! Can't beat the sound of a cummins spooling the turbo!!

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TL Rich

07-10-2003 05:45:55




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 Re: Re: Running a strraight pipe on an M in reply to Bob, 07-10-2003 03:00:14  
What? I've been using a stright pipe on the old M and I can't hear what you wrote.



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