Air Silencer

[2003snake]

I talked to a 03 owner that made a comment that he thought his car didn't run as well without it.

Your thoughts on the matter?

PS. no mods (other than hood and PRO 50) done yet

J.

 

[SVTyballz]

my thoughts? take that thing outta there. mine runs better without it.

gary

 

[harry gilbert]

One reason I have NOT removed my silencer is that I am concerned with introducing turbulence into the air stream. Having worked in automotive engineering for many years, I know the compromises made by engineers, but they did consider smooth air flow over the whole range of engine speed. Several posters have reported little or no gain removing the silencer.

 

[mosconiac]

I think this is the typical response an ’03 has to silencer removal…+10rwhp and more blower whine ;o)

“I had mine dyno'd at 600 miles, totally stock, 92 degrees, with about the same in humidity, only got 338rwhp/tq. Took off silencer and air box 2nd pull 348rwhp.”

http://www.svtperformance.com/forums/showthread.php?s=&threadid=19708&highlight=silencer+dyno

 

[david smilovic]

It makes more power w/o,I have dynoed 5 in addition to mine and have seen 6-10 hp gain,Avge. of 8.Dave s.

 

[cobra racing]

We Dynoed a bone stock 03 with 3000 km's, it pulled 368rwhp stock and pulled the air intake and left it to atmosphere, it made 384 rwhp, A 16hp gain and sounded awesome, I will post the video replay tonight if I get a chance. :beer:

 

[Jim Vaccaro]

Silencer=Restriction..Quiet Exhaust=Restriction.



Jim V.

 

[2003snake]

It's outta there!!!!!!!!!!!!!!!

J

 

[mm49]

Originally posted by 2003snake
It's outta there!!!!!!!!!!!!!!!

J

Who cares about air turbulence when you sucking 15#s of boost...:-D

Get that thing out !!

 

[postban]

Originally posted by Jim Vaccaro
Silencer=Restriction..Quiet Exhaust=Restriction.



Jim V.

Listen to this man, he speaks wisdom!

 

[Cobra'03]

It varies from car to car - the silencer works on the principles of Helmholtz physics - tuning the resonance can actually let more air in over most of the range. In Volvo hi-po engines like the T5 for example, removing the resonator actually causes a drop in the low to mid torque, while peak HP goes up a tiny bit. For practical purposes, it would be better in that case to leave it in.

For the Cibras, it has been established that it has to go.