Toyspeed.org.nz Message Board

by **Bazda** » Mon Nov 12, 2012 10:57 am

Yep you needs 2x long resonators!

by **gt4dude** » Mon Nov 12, 2012 11:16 am

In my exhaust stream I used to have

Turbo (T28 housing) -> 3" mild steel -> 3" oval muffler -> 3" mild steel -> 3" oval muffler

the system was very quiet, had no loud barks, but the bass from idle was enough to shake down a house like christchurch,

then i changed to,

Turbo (T28 housing) -> 3" mild steel -> 2x Coby resonators -> 3" mild steel -> 3" oval muffler

now i have no bass tones, but the engine roars when its on song (aka 3500+rpm on boost)

by **~SlideWays~** » Mon Nov 12, 2012 11:44 am

gt4dude wrote:In my exhaust stream I used to have

Turbo (T28 housing) -> 3" mild steel -> 3" oval muffler -> 3" mild steel -> 3" oval muffler

the system was very quiet, had no loud barks, but the bass from idle was enough to shake down a house like christchurch,

then i changed to,

Turbo (T28 housing) -> 3" mild steel -> 2x Coby resonators -> 3" mild steel -> 3" oval muffler

now i have no bass tones, but the engine roars when its on song (aka 3500+rpm on boost)

Cheers for the feedback, what kind of oval muffler are you using?

by **~SlideWays~** » Mon Nov 12, 2012 11:46 am

Bazda wrote:Yep you needs 2x long resonators!

Chase type or AdrenanilR ones? I wonder if it will be enough if I get an 18" Chase resonator, I'm just not sure they are as well designed as the AdrenalinR ones.

by **gt4dude** » Mon Nov 12, 2012 12:31 pm

chase mufflers

the one i ditched was 3" offset in, 3" offset out

the one i retained at the rear is 3" centre in, 3" offset out

by **~SlideWays~** » Mon Nov 12, 2012 12:46 pm

gt4dude wrote:chase mufflers

the one i ditched was 3" offset in, 3" offset out

the one i retained at the rear is 3" centre in, 3" offset out

Cheers mate, it sounds like I might just need a big Chase resonator then.

by **gt4dude** » Mon Nov 12, 2012 12:52 pm

turbocharger and cat convertor quietens the obnoxious high bitch noise

resonator in turbo system seems to remove the bass tones (and possibly the high pitch ones on NA, though i wouldn't know)

oval mufflers seem to blanket the entire range of noises

by **Crucible** » Tue Nov 13, 2012 10:25 pm

Yeah one resonator will never be enough and will make little differance.

At least two large resonators to take out that annoying cackly droan. Imo a better option than mufflers on a turbo vehicle.

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