high power-low db prototype muffler

[calmtigers]

Originally Posted by JimmyMac

Weight reduction.

My question was what is the weight

[churchx]

BTW, why both ends are made different / not interchangeable / with welds and connecting place at different tube length? Imho making both of them same way might result in slightly cheaper manufacturing, no? And even if tips are not round but directional, if they are not welded on, it shouldn't keep from making ends same? Or it's this way only in prototype?

[Ultramaroon]

Originally Posted by churchx

BTW, why both ends are made different / not interchangeable / with welds and connecting place at different tube length? Imho making both of them same way might result in slightly cheaper manufacturing, no? And even if tips are not round but directional, if they are not welded on, it shouldn't keep from making ends same? Or it's this way only in prototype?

I bet it's a proto-prototype. It's cool to see it this early.

[CSG Mike]

Originally Posted by calmtigers

Also weight? Why would someone buy this over another "quiet" exhaust. invidia or perrin style?

Those other "quiet" exhausts are not quiet enough for our requirements.

[Ultramaroon]

Originally Posted by CSG Mike

Those other "quiet" exhausts are not quiet enough for our requirements.

I really do like how it sounds. Would like to hear it pull through 6K under load at WOT.

[Ultramaroon]

Originally Posted by Ultramaroon

I see potential for fatigue failure at the areas circled. If you send me a second prototype I'll be happy to do more evaluation.

nvm. I see this is a work in progress. Nice.

[JimmyMac]

Originally Posted by calmtigers

My question was what is the weight

Sorry, I was on my cell reading the post at a wedding. haha

[CSG Mike]

Just sayin.

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[2much]

Originally Posted by CSG Mike

Just sayin.

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is there any pre-order information available?

[CSG Mike]

Originally Posted by 2much

is there any pre-order information available?

Not yet; we don't even know if this will make it into production. It'll depend on if testing is successful.

[Yoniyama]

Finally, for FT-86 owners without hearing impairment, something may be coming to deal with the very high noise level.

Thank you so much for your effort.

I will be very interested if an exhaust system is available to, in order of priority:

1 Reduce interior exhaust noise by at least 2dB;

2 No loss in power;

3 Good reliability (especially rust protection); and

4 No increase in weight.

When the final product is finished, in order to make an informed purchase decision, please provide the following information:

1 Interior noise, OEM stock vs New Product;

2 Airflow (power and torque), OEM stock vs new Product; and

3 Weight, OEM stock vs New Product.

Thanks again.

[CSG Mike]

Originally Posted by Yoniyama

Finally, for FT-86 owners without hearing impairment, something may be coming to deal with the very high noise level.

Thank you so much for your effort.

I will be very interested if an exhaust system is available to, in order of priority:

1 Reduce interior exhaust noise by at least 2dB;

2 No loss in power;

3 Good reliability (especially rust protection); and

4 No increase in weight.

When the final product is finished, in order to make an informed purchase decision, please provide the following information:

1 Interior noise, OEM stock vs New Product;

2 Airflow (power and torque), OEM stock vs new Product; and

3 Weight, OEM stock vs New Product.

Thanks again.

I think a better option for you would be to delete the sound tube, and perhaps add a few squares of dynamat to your driveshaft tunnel to reduce noise.

[Fricke]

I think this is the way too go, too meet the requirements that I'll think even the US and Asia is facing soon enough.
In many countries in Europe, we already have a 95db noise level on the track, and that ladies and gentleman is under full load, usually on the start/finish straight
I don't know off any body, running an aftermarket exhaust in Sweden that haven't bin modified whit more efficient dampers, or the most common make there own exhaust.
If you exceed 95db on the track in Sweden or Norway you get the black flag and that's it, no more racing for you my friend, and this is registered in your race book, so if don't have it sorted out to next race, you don't even make it out on the track.
The same goes if you don't have a catalyst on the car
But here a 100cel will do.
And i think that this is were the rest of the world is heading to, if the environmental folks get too say ther point, and usually what they say is the law
So if you make race exhausts that's quite you will get too sell more of them, that's what I think.

[Calum]

Originally Posted by Yoniyama

Finally, for FT-86 owners without hearing impairment, something may be coming to deal with the very high noise level.

Thank you so much for your effort.

I will be very interested if an exhaust system is available to, in order of priority:

1 Reduce interior exhaust noise by at least 2dB;

2 No loss in power;

3 Good reliability (especially rust protection); and

4 No increase in weight.

When the final product is finished, in order to make an informed purchase decision, please provide the following information:

1 Interior noise, OEM stock vs New Product;

2 Airflow (power and torque), OEM stock vs new Product; and

3 Weight, OEM stock vs New Product.

Thanks again.

Originally Posted by CSG Mike

I think a better option for you would be to delete the sound tube, and perhaps add a few squares of dynamat to your driveshaft tunnel to reduce noise.

The rear parcel shelf helps noticeably as well.

secondskinaudio.com makes great products for this.