exhaust question
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Junior User
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exhaust question
i have a 7.3 psd and we cut muffler of and ran a y-pipe with duals. we had to run three inch pipes because no one around here can bend four inch. ive heard that its not real wise to cut the muffler off because it tends to heat up the turbo alot. do i need to run guages with this to monitor everything? i need some advice or suggestions with what i should do.
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Joined: Feb 2004
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From: Phx, AZ
First off yes get the gauges before you do anything else. As for the muffler being cut off and causing an increase in the heat. I belive it would be the other way around as there is less restriction in air flow without a muffler.
Fire rooster
Fire rooster
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From: Nowhere, SE OK
Originally Posted by Fire Rooster
Sorry Cookie, we need to stop typing at the same time as I just repeated what you said.
Fire Rooster
Fire Rooster
Had something like this just happen in General Automotive.
Somebody asked what was the difference between a 4X4 and a 4X2 (imagine that), and four of us posted within 1 minute of difference, all of us saying the same thing.
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Joined: Feb 2004
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From: Sebring, FL
Got a quick addon, is it safe to run a diesel truck with no muffler, Ive heard that with no back pressure you can burn up the valves. Is this a myth? Just curious Ive been tinkering with cutting the muffler out, thought I get some advise from the experts. 
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thanks for yalls suggestions...Im not real sure what gauge company i should order some from. i know i want to do the 3 pod pillar mount. Which gauges do i need and which company offers good ones, and also how hard is it to install them. thanks again.
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Postmaster
Joined: Feb 2002
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From: Bonney Lake, WA
Got a quick addon, is it safe to run a diesel truck with no muffler, Ive heard that with no back pressure you can burn up the valves. Is this a myth? Just curious Ive been tinkering with cutting the muffler out,
Straight pipes won't damage anything, except the ego of the guy in the Dodge in the next lane.
thanks for yalls suggestions...Im not real sure what gauge company i should order some from. i know i want to do the 3 pod pillar mount. Which gauges do i need and which company offers good ones, and also how hard is it to install them. thanks again.
As far as what gauges to get, the most common ones are a Pyrometer for measuring EGT's, a boost gauge, and a tranny temp gauge, assuming you have an automatic.
Last edited by Quadzilla; Aug 9, 2004 at 02:35 PM.
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From: Oconomowoc, Wis.
O.K I'm new to all of this Maybe someone can help me after they are done laughing at the Question.
What are EGT's and just what would a average reading be on the Pyrometer be.
Thanks
Dave K
What are EGT's and just what would a average reading be on the Pyrometer be.
Thanks
Dave K
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From: IOWA
EGT stands for Exhaust Gas Temperature. I've got an open element air intake with a straight piped stock (3.5") exhaust, just added a flip chip, but at stock I would run anywhere from 600 to 800 degrees going down the highway. It depended on whether I was climbing a hill or coasting down it, it can change a lot.
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From: Oconomowoc, Wis.
Thanks Guys,
I have a pyrometer in my truck. It yellow lines at 800* and red lines at 900* At 70 mph it rides at 400 * I must have placed the reciever in the wrong place. I do however have a K&N air intake with a 5 inch duraflo exhaust. I also have a superchip.
I have a pyrometer in my truck. It yellow lines at 800* and red lines at 900* At 70 mph it rides at 400 * I must have placed the reciever in the wrong place. I do however have a K&N air intake with a 5 inch duraflo exhaust. I also have a superchip.
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From: Cabot, Arkansas
Originally Posted by DaveK88
Thanks Guys,
I have a pyrometer in my truck. It yellow lines at 800* and red lines at 900* At 70 mph it rides at 400 * I must have placed the reciever in the wrong place. I do however have a K&N air intake with a 5 inch duraflo exhaust. I also have a superchip.
I have a pyrometer in my truck. It yellow lines at 800* and red lines at 900* At 70 mph it rides at 400 * I must have placed the reciever in the wrong place. I do however have a K&N air intake with a 5 inch duraflo exhaust. I also have a superchip.
Freshman User
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From: Oconomowoc, Wis.
Thanks Cookie,
Should i move it or leave it alone? I should still see any temp. spikes where it is now.
By The way, This is a great site. Being new to the deisel revolution (I race late models and I think I know alot about gas engines) I have learned quit a bit from you guys. It is unbelievable the differences between the two engines.
Should i move it or leave it alone? I should still see any temp. spikes where it is now.
By The way, This is a great site. Being new to the deisel revolution (I race late models and I think I know alot about gas engines) I have learned quit a bit from you guys. It is unbelievable the differences between the two engines.