HW AC Racing Dual Exhaust Test - TeryxHQ.com Forums

Hunterworks · 10-08-2008, 03:41 PM

Well I am finally through with exhaust comparison testing. Got the AC Racing true dual done today.

First , I would not get it to fit right so I am sending it back. I had to hold it on with a welding clanp but it had no bearing on it's performance.

On more thing, boy is it loud. 98db at 6000 rpm and 114db under load. Ouch!!!

As I thought the true dual would not perform as well as other designs, yea it still beat the slip on but not the HMF and Muzzy. On the normal test it was about 2.4 HP less than the Muzzy and on our loaded test about 1.75 HP less than the Muzzy.

We will be selling the Muzzy and HMF systems soon when we get our jetting worked out completely. Mostly the needle positions which has nothing to do with wide open throttle runs like we have been doing for the testing.

Ok here are the charts for all five with the AC Racing in the mix too.

Normal dyno test

Loaded Test

puddle jumper · 10-08-2008, 05:54 PM

your the man Todd

10-08-2008, 03:41 PM	#1 (permalink)
Hunterworks TeryxHQ.com Site Sponsor Join Date: May 2008 Posts: 515	HW AC Racing Dual Exhaust Test Well I am finally through with exhaust comparison testing. Got the AC Racing true dual done today. First , I would not get it to fit right so I am sending it back. I had to hold it on with a welding clanp but it had no bearing on it's performance. On more thing, boy is it loud. 98db at 6000 rpm and 114db under load. Ouch!!! As I thought the true dual would not perform as well as other designs, yea it still beat the slip on but not the HMF and Muzzy. On the normal test it was about 2.4 HP less than the Muzzy and on our loaded test about 1.75 HP less than the Muzzy. We will be selling the Muzzy and HMF systems soon when we get our jetting worked out completely. Mostly the needle positions which has nothing to do with wide open throttle runs like we have been doing for the testing. Ok here are the charts for all five with the AC Racing in the mix too. Normal dyno test Loaded Test __________________ www.hunterworks.com www.3stepatvtires.com Last edited by Hunterworks; 10-08-2008 at 03:46 PM..

10-08-2008, 05:54 PM	#2 (permalink)
puddle jumper Senior Member Join Date: Apr 2008 Posts: 170	your the man Todd __________________ red le 28" bugs nukes audiopipe belt snorkels dyna HW carb kit overdrive plate xpatv lift super atv bumper Night Owl Hids k&N billet intake grant wheel

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