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Open exhaust manifolds #1004898 06/01/11 11:27 PM 06/01/11 11:27 PM
Joined: Dec 2008 Posts: 2,782 USA J JoesMopar OP master
JoesMopar OP master J Joined: Dec 2008 Posts: 2,782 USA	Can you run open exhaust manifolds the same way you would open headers for a short period of time? I was asking because I'm going to bring my car to Midas for them to put the exhaust on. I was wondering if I trailer it there if I could start it up for a few minutes to pull it on and off the trailer. Thanks

Re: Open exhaust manifolds [Re: JoesMopar] #1004899 06/01/11 11:57 PM 06/01/11 11:57 PM
Joined: Jan 2003 Posts: 32,934 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,934 Grand Prairie,Texas	No reason you can't if everything burnable is out of the way.

Re: Open exhaust manifolds [Re: stumpy] #1004900 06/02/11 12:06 AM 06/02/11 12:06 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	It may burn some paint. I would winch it, The slight bit of extra time/effort will b forgotten when it's done live every 24 hour block of time like it's your last day on earth

Re: Open exhaust manifolds [Re: RapidRobert] #1004901 06/02/11 01:17 AM 06/02/11 01:17 AM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	flex pipe about 3' for each manifold..

Re: Open exhaust manifolds [Re: astjp2] #1004902 06/02/11 03:03 AM 06/02/11 03:03 AM
Joined: Jul 2008 Posts: 30,431 Florida STAYcation BeEtLeJuIcE ! The village idiot's idiot
BeEtLeJuIcE ! The village idiot's idiot Joined: Jul 2008 Posts: 30,431 Florida STAYcation	Quote: flex pipe about 3' for each manifold.. DO THIS or chance the possiblity of hurting the exh valves. IF they get nice and toasty ...and then the cool air hits them .. it can damage them. NEVER seen it happen .. but I have heard of it doing so.

Re: Open exhaust manifolds [Re: BeEtLeJuIcE !] #1004903 06/02/11 03:32 AM 06/02/11 03:32 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	You know, that "valve damage" story has been passed around for years. I have never heard of it actually happening. I have ran open manifolds before PLENTY of times with zero ill effects. The noise is nearly intolerable though. Why go to the trouble and expense of using a trailer? Crank 'er up and get it done!

Re: Open exhaust manifolds [Re: Kern Dog] #1004904 06/02/11 04:03 AM 06/02/11 04:03 AM
Joined: Jul 2008 Posts: 30,431 Florida STAYcation BeEtLeJuIcE ! The village idiot's idiot
BeEtLeJuIcE ! The village idiot's idiot Joined: Jul 2008 Posts: 30,431 Florida STAYcation	Quote: The noise is nearly intolerable though. SOME of yurr posts are too !

Re: Open exhaust manifolds [Re: BeEtLeJuIcE !] #1004905 06/02/11 04:14 AM 06/02/11 04:14 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Thanks for the "kid gloves" Did you see my newest title? Is it wrong to admit that I like it?

Re: Open exhaust manifolds [Re: Kern Dog] #1004906 06/02/11 04:17 AM 06/02/11 04:17 AM
Joined: Jul 2008 Posts: 30,431 Florida STAYcation BeEtLeJuIcE ! The village idiot's idiot
BeEtLeJuIcE ! The village idiot's idiot Joined: Jul 2008 Posts: 30,431 Florida STAYcation	Your new title is most appropriate ...... the tribble-maker that U R ! ...

Re: Open exhaust manifolds [Re: BeEtLeJuIcE !] #1004907 06/02/11 11:52 AM 06/02/11 11:52 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Hi Doc I am truckless..

Re: Open exhaust manifolds [Re: 340SHORTY] #1004908 06/02/11 08:24 PM 06/02/11 08:24 PM
Joined: Dec 2008 Posts: 2,782 USA J JoesMopar OP master
JoesMopar OP master J Joined: Dec 2008 Posts: 2,782 USA	Thanks for all the info. So where do I find 3" flexible exhaust hose???

Re: Open exhaust manifolds [Re: JoesMopar] #1004909 06/02/11 08:30 PM 06/02/11 08:30 PM
Joined: Jul 2007 Posts: 11,836 Florida M mopar346 Let me tell ya about fat chicks!
mopar346 Let me tell ya about fat chicks! M Joined: Jul 2007 Posts: 11,836 Florida	If it's a stock application have the shop make you the head pipes, bolt them up and drive it there. It us to be a common practice, back when we had real custom exhaust guys. Careful, your character's showing!

Re: Open exhaust manifolds [Re: mopar346] #1004910 06/02/11 09:00 PM 06/02/11 09:00 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Shoot, for $45 call a tow truck and have it carted over. You're going to spend as much or more on headpipes or running around to find some flex. As for the "warped valves" old wives' tale, I refer to a big Wisconsin 12 hp 1-cylinder we used to run the grain augur on the farm. The muffler blew off and after dark you could see the exhaust valve at yellow heat, straight in the open exhaust port. That engine ran like that for years with hundreds of on-off cycles. As the guy who had to start it with a hand crank, I can say for sure that the exhaust valve wasn't bothered by the abuse. R.

Re: Open exhaust manifolds [Re: stumpy] #1004911 06/02/11 09:40 PM 06/02/11 09:40 PM
Joined: Jun 2004 Posts: 6,780 Alabama Mopar-Al master
Mopar-Al master Joined: Jun 2004 Posts: 6,780 Alabama	Quote: No reason you can't if everything burnable is out of the way. I doubt you will experience any problems. I have done this quite a few times over the years. Starter wire,speedo and safety switch wires should be out of the way before hand. It's not like your going to go cruising in it.

Re: Open exhaust manifolds [Re: Mopar-Al] #1004912 06/02/11 10:40 PM 06/02/11 10:40 PM
Joined: Dec 2008 Posts: 2,782 USA J JoesMopar OP master
JoesMopar OP master J Joined: Dec 2008 Posts: 2,782 USA	Quote: Quote: No reason you can't if everything burnable is out of the way. I doubt you will experience any problems. I have done this quite a few times over the years. Starter wire,speedo and safety switch wires should be out of the way before hand. It's not like your going to go cruising in it. How about when I first fire the engine to break the cam in? It would be at least a 20 min run

Re: Open exhaust manifolds [Re: JoesMopar] #1004913 06/02/11 10:56 PM 06/02/11 10:56 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	back in the day i used to run my car with no pipe just out the mannys. loved it at night on the highway,it would have fire shooting down to the ground at 70 mph never hurt the valves on it now if it was straight out the exhast ports,I could see cold air rushing it to warp the valves.

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