Thread: muffler removal TDI

Jeez, i cant blieve this mad 4 pges.

Where r u Ron????

Originally Posted by vnx205

Was the "well put" comment a favourable comment about the technical explanation or a sarcastic comment about the spelling, grammar and syntax?

Im a mechanic not an english teacher, I dont need to spell well for my job and It gives guys like you another post to your post counts when you correct my spelling.

I care not about the spelling, you got the point......

Originally Posted by incisor

getting my muffler removed today, and will be wrapping the pipes to the back of the transfercase on this truck with header tape very shortly, now i have found where i stowed the last lot i bought :P

i do it to cut down on the mechanical noise transferred down the exhaust pipe on a diesel. well worth the fifty dollars or so the header tape sets you back IMHO.

You should have done the before and after timing test Dave, I was pleasently surprised with the results.

yeah, the difference is not something to be sneezed at.

i have to say i didn't expect the difference i have noticed. had i expected this sort of difference i would have done some sort of comparison test as it is a very measurable difference in behavior.

next time i am pointed downhill at a big angle in low low i expect to feel a difference as well i think... for that sort of plus i would expect to find a minus in that area, hope i am wrong tho :P

i found an extra bonus on the way home...

mine has had a vibrating rattly noise when revved hard, must have been a baffle because it has vanished so i am twice as impressed with the results...

Originally Posted by rick130

Sorry, but i don't believe it.

Unless someone comes up with dyno numbers to show before and after, I reckon it's a perceived benefit and not real.
The stock 300Tdi muffler is a perforated straight through design that has a larger ID than the exhaust. How can replacing this result in a huger difference ? (other than noise )

I have a 3" mandrel bend system and the improvement over stock wasn't startling. In fact I was pretty under whelmed considering all the work that went into it.

Honestly fella's, way back in the dim, dark distant past working as a race mechanic/engineer, I wouldn't mind a $ for every time a driver said a change we made was better/faster until we showed them the data readout or stopwatch.
Just cause it's louder doesn't equate to faster.

Properly papered results, would be better. not street guesstimates
I know there are you mechanicy types out there, but have been there a done than( not on a l/r diesel), take out the resonator, but some straight pipe in, up the pipe diameter for more flow the list goes, on. The improvements none, the wallet lighter and that was it.
I figure the engineeers of engines do have some sort of formula they work on, so why change it.

Suburbanites with free flowing exhausts. can someone give me a justification for a change, on something that 90% of the time would be used as a daily driver. Which escape on the green light, accelerate through a roundabout?
Your talking about a diesel, one that I have found , when properly tuned, fine on take off and drving.

thats my take on it.


john

Originally Posted by JohnE

Your talking about a diesel, one that I have found , when properly tuned, fine on take off and drving.

and even smoother after it i have to say.

having just come from an auto back to a manual i can say i wouldnt bother doing it on an auto as the effect seems to be very similar in nature to how the auto already behaves to some degree, ie allowing the motor to get some revs quicker...

and yes the evidence is anecdotal but after driving thru 1/2hr of heavy traffic this morning on the way to MR i am more impressed.... way smoother than my last drive thru traffic and well worth the 40 bucks invested imho.