If your after a quiet 3" system then you'll have to go custom with a large center resonator.
Mine's not loud, but it's not quiet either.
any chance of a DB reading?
If your after a quiet 3" system then you'll have to go custom with a large center resonator.
Mine's not loud, but it's not quiet either.
any chance of a DB reading?
Thats prity loud mate. Have to say sounds quite farty. What type and size of back box do you have??
Any chance you could make a video from a distance instead of right beside the exhaust?
This isnt true, dozens of threads on HondTech showing gains all through the rev range...
A guy posted a graph of a stock b16a with a 3" sytem bolted to it and it still gained power and torque all over.
All the info is out there.
Larger exhaust tubes are not going to hurt power or torque.
No tubes are best and loudest.
2.5" from collector back is good; 3" is "good'er"!
meh did a little research myself. He has a 1.8.
I guess 1 day I might change my muffler only to a 2.75-3" because the end tip of the 2.5" muffler is actually not a true 2.5". Its like 2.36 due to its design to hold the packing in.
3" exhaust...too big for n/a? - Page 2 - Honda-Tech
The dude says;
Update:
I tuned with the 3" exhaust. I made good power however I know my midrange was suffering and the car wasn't loud....it was ****ING RETARDED LOUD!(hollowed cat, no resonator, 3" straight through muffy) It was to the point where, I would get home and my ears were buzzing and ****(felt like I'd been partying at a club all night ). Anyhow, I recently swapped the exhaust for 2 1/2" cat back setup. I still retained a 3" outlet on my header, ran a 3" high flow cat, then tappered down. The car feels a lot better. Tq is definately beneifiting from the smaller diameter piping. I will have numbers up soon.
I think the general consensus is, 3" is a little on the big side for 81-82mm(stock sleeve) setup. Peak power will be greater however its all about the power under the curve.
Scavanging is almost all controlled by the header design, collector type and size. When it comes to tail pipe dimentions you should be going for as free as possible. Well to an extent. I would agree 3" is too big for a b16. But this thread was about higher tuned b18's to K20's. Plus to point out that guy was runing a 3" header aswell, so no wonder it didn't suit, as he has changed the header design. Im still yet to be convinced on the idea of 3" being best. I know people have proved it on dyno's but I do understand the fact that doesn't show what partial throttle will be like.
I just fitted a 3" cat back to my car, h22a7 with breathing mods, filter, vtec. Direct manifold, so-fab 2.5" decat and now 3" cat back.(was dyno'd at 229bhp before manifold/decat) My previous exhaust was a 2.25", its a really wierd set up now, for every day driving, when just cruising around it feels ALOT less restrictive, but when i'm at about 2-4k and boot it, it does feel quite sluggish, but as vtec comes in it does seem to pull alot harder than previously, but thats only from the bum dyno