family camper dad
lakeside,ca. 92040
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Joined: 10/20/2007
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I just had a Dynomax "SuperTurbo" muffler/tailpipe put on my 1998 Winnie Itasca Class C. It has the 6.8L V10 w/ 275 H.P...I was wondering if anyone has any experience/input on this product?? Will it increase performance? Power? Gas mileage? Run cooler? Thanks so much. The Family Camper Dad.
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Scrib
Maplewood
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Joined: 05/31/2007
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I'm thinking about doing this too, how's the sound? You should get some HP out of it (probably around 15rwhp), but that's about it. It's a cheap way to get a few ponies, though!
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bill h
el segundo
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Joined: 08/02/2001
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family camper dad wrote:Will it increase performance?
My guess would be yes, but why not climb a hill you know and let us know how it did?
Bill and Susan
84 Barth 30 tag powered by ht502/Thorley, Gear Vendors OD
Siamese Calvin and Airedale Hobbes
4WD Toyota toad
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PatJ
WA
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Joined: 05/03/2005
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The Dynomax Super Turbo is considered the best muffler for people that don't try and use a muffler to impress others. It will significantly outflow the "sexy" mufflers like Flowmaster, Gibson, and Magnaflow but it is still quiet. It is supposed to be just a high-quality truck/performance muffler.
But, I installed them on my truck with true duals and I can't honestly say I noticed a difference other than sound. It is still quiet and sounds good though so I am happy.
Patrick
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randallb
home
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Joined: 11/19/2007
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A 6.8L engine at 4000 rpm and 70% VE moves approximately 336CFM, they are just air pumps. The DYNOMAX ads show the Super Turbo to flow 420CFM but do not list pipe size or model number. I do not think you will see any performance benefit because the back pressure occurs at the catalytic converter and therefore the muffler is not having the effect on back pressure that it would in a short performance exhaust. Also by the time the exhaust gets to the muffler in a motorhome it is traveling so slow that the muffler really does not have much effect on the exhaust flow.
Randy
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1fastdad
mo.
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randallb wrote:A 6.8L engine at 4000 rpm and 70% VE moves approximately 336CFM, they are just air pumps. The DYNOMAX ads show the Super Turbo to flow 420CFM but do not list pipe size or model number. I do not think you will see any performance benefit because the back pressure occurs at the catalytic converter and therefore the muffler is not having the effect on back pressure that it would in a short performance exhaust. Also by the time the exhaust gets to the muffler in a motorhome it is traveling so slow that the muffler really does not have much effect on the exhaust flow.
Randy The modern day catalytic converter has very little restriction unless it is stopped up with carbon deposits and yes people have gained power & economy from a more free flowing exhaust and some people just like the sound.
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Vulcanmars
Naples, FL
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I would say both, some performance and some noise. I have used the Dynomax on a few cars/trucks and they were nice, not too loud.
I have the "large body" Magnaflow on my 6.8L. Just a little burb at idle some noise under heavy throttle. (6.8L V10s sound like formula cars at 4~5000 rpm. to me) If nothing else I lost about 70 lbs of metal compared to the OEM unit.
Mars
06 Rage'n FA3005
04 V10 F250 SDCC 4X4
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bill h
el segundo
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Vulcanmars wrote:I have used the Dynomax on a few cars/trucks and they were nice, not too loud.
I have the "large body" Magnaflow on my 6.8L. Just a little burb at idle some noise under heavy throttle.
Mario, would you talk a little on the differences between the DM and MF? What made you choose the Magnaflow over the Dynamax this time?
I will be using a pair of long oneswith an X pipe, so any thoughts in that regard are appreciated.
TIA.
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