Straight tru exh lower EGT

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What on average would a no muffler exh system gain in lower EGT temps. Anyone know? TIA, Mike

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92 Std cab. LE. 210,000, 5-speed, 3. 54, 105 gal Aux tank in bed. Banks Power pack. 14cm 4" exh. w/wastegate. Pyro & boost guage, oil temp guage. Rebuilt pump turned up, fresh injectors. E-brake. Used as a Hotshot/express Reg. at 36,000 lbs in 48 states. http://hometown. aol.com/hotshothauler/myhomepage/business.html

 

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Any takers on this one? TIA, Mike

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92 Std cab. LE. 210,000, 5-speed, 3. 54, 105 gal Aux tank in bed. Banks Power pack. 14cm 4" exh. w/wastegate. Pyro & boost guage, oil temp guage. Rebuilt pump turned up, fresh injectors. E-brake. Used as a Hotshot/express Reg. at 36,000 lbs in 48 states. http://hometown. aol.com/hotshothauler/myhomepage/business.html

 

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I'll say any improvement (reduced EGT) would be minimal by just dropping the muffler on a stock system. Your noise level would obviously increase. The sound may be pleasing to your ears, but I've considered an unmuffled Dodge/Cummins pickup diesel to be kind of ratty sounding, similar to a Farmall tractor.
A greater reduction in EGT would be gained by a replacement free flow system, 3 1/2" pipe smoothly formed, and a free flow muffler to knock off the "rats".
I've had a JRE modified Banks system with a Walker straight thru muffler on my '92 with serious fueling, and got about 100 deg. reduction after dropping the Banks "free flow" (not) muffler and having Ted J improve the plumbing. This was after an injector and pump upgrade, and "earnest" fueling.
By the way, if you're hotshotting, the system change may be the way to go, as the "rat" may become annoying after a while.

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'98 2500, Cummins 12v, 5spd, 4wd, 3. 55, 300 injectors, JRE III power kit, 4" turbo to tail system, boost/pyro, did I mention 12 valves? GOT DIESEL?

 

[Archive]

Old school, I'm running a 4" mandrel bent system now. But muffled. Thanks for the reply my friend. Mike

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92 Std cab. LE. 210,000, 5-speed, 3. 54, 105 gal Aux tank in bed. Banks Power pack. 14cm 4" exh. w/wastegate. Pyro & boost guage, oil temp guage. Rebuilt pump turned up, fresh injectors. E-brake. Used as a Hotshot/express Reg. at 36,000 lbs in 48 states. http://hometown. aol.com/hotshothauler/myhomepage/business.html