Help! Exhaust Too Loud

[THawkbh]

I just put a 'new' exhaust on my RX-7 race car this weekend and it's WAY too loud. Apart from putting in a new resonator, which I will do eventually, is there a way to quiet it down? Will a cone insert like this one http://www.summitracing.com/parts/DTC-72-32520/ work? For what its worth, I'm running a 3'' pipe.

 

[Knestis]

Rotaries are unique beasts where sound is concerned, but you can start by putting an elbow on the outlet end of the pipe pointing away from sound control.

K

 

[BruceG]

Perhaps a supertrap with just a few cones in it. Could never get my 12a quiet enough for track days. Saw a guy on friday at LRP(NASA track day) thaat had a 2nd gen 13b. He had 2 inlins mufflers underneath and a third muffler attached at a right angle off the rear bumper!! Must be tough to go up the back hill and get it on the trailer, too.

 

[joeg]

Forget those SuperTrapp Plate reduction. You need to consult with rotary experts...assuming they can hear!

Those motors are pretty difficult to get quiet without the correct system.

 

[racingralph]

exhaust

get up with steve eckerich , he has one of the best exhaust systems out there for 2nd gen rx-7s. you didn't say which gen you have. isc racing has one also ,but i think mike doesn't keep any in stock. steve's type makes the most power and is really quiet. there are other rx-7 shops that offer thier verion. ralph

 

[THawkbh]

how would i get in touch with steve?

 

[seckerich]

PM me and I will give you my number.