Originally posted by basilisk4@Dec 14 2005, 08:13 AM
Would that result in a bung hole?
You have to remember that dyno results change from area to area. Dynos are horrible indications of power. One car can get 100 whp from one dyno and get 90 from another. Variations can be as much as 15%. All a dyno is good for is to judge the gains from a mod relative to a baseline. That is why most serious power builders dyno each time they add something major. If you're like LBR, you'd do a timed lap afterwards as this is probably the best way to achieve accurate results for performance gains.Originally posted by josurr@Dec 14 2005, 12:49 AM
thats weak...
thats a dyno of my tC with only the TRD exhaust... i would much rather take the TRD exhaust over an exhaust w/no axle back and not risk pissing off any cops or emissions people...
No expensive welding!Originally posted by zoltiz@Dec 14 2005, 06:28 AM
You can also weld in a bung in the bottom of the muffler and put a plug in it if you want a quiet day.
amen. if i had a nickel for every time i have typed that... i'd have a few nickels.Originally posted by PhamKL@Dec 14 2005, 03:23 PM
You have to remember that dyno results change from area to area. Dynos are horrible indications of power. One car can get 100 whp from one dyno and get 90 from another. Variations can be as much as 15%. All a dyno is good for is to judge the gains from a mod relative to a baseline.
I don't understand what you are talking about.Originally posted by PhamKL@Dec 15 2005, 03:16 PM
Not everyone is doing this because not everyone wants to release a HP or two by compromising the muffling by a few hundredths of a decibal or two.
Think, man, if the most performance can be had from an exhaust mod by cutting after the cat, why doesn't everyone do it? It'll sound pretty bad (not to mention very attractive to cops.) If that much is true, scale it back a little to the minimalist approach of drilling holes in the muffler. If you've seen the stock muffler opened, you'd see how convoluted the baffling it. By drilling a hole in the center of the muffler it'd remove a considerable amount of back pressure simply be allowing a very quick route out of the pipe to avoid most of the baffling.
I wouldn't do this myself.