fourload
TY 4 Stroke Master
Today Billy Howard's production 40 mile Tcat on 93 octane ethanol produced 205.3@8800. With a preproduction stainless muffler it produced 230.4@8900!!!
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RXVIPER
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Snowaddict
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Huh, another T-Cat. Can they get a production sidewinder to do that now?


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sx7001
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Where did he do the 40 miles!!! Cheater
sx7001
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And what is a "preproduction stainless muffler". Lol
Titanium would gain a few more. Lol
Titanium would gain a few more. Lol
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25 HP from a muffler? I don't buy that. And where are the damn Sidewinder dyno reports??


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25 HP from a muffler? I don't buy that. And where are the damn Sidewinder dyno reports??
I dont either but I am sure it all about selling product at this point.
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Taking a page out of Yamaha's book 

fourload
TY 4 Stroke Master
The preproduction muffler apparently increased the recorded boost also. It went from 10.3 on the stock muffler to 11.7 on the preproduction muffler.


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pretty simple ,it's a muffler that they're not finished with to sell as a production model .And what is a "preproduction stainless muffler". Lol
Titanium would gain a few more. Lol
super_rash
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these numbers are all over the place, with pre production muffler??.. now where can we buy a pre production muffler??.. anyway...seems there are a lot of Thundercats out there getting dynoed...
RTX
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these numbers are all over the place, with pre production muffler??.. now where can we buy a pre production muffler??.. anyway...seems there are a lot of Thundercats out there getting dynoed...
I am surprised that this is confusing anyone but i will try to help clarify.
In order for any Company to sell a production part, there must first be a preproduction part that is designed fabricated and tested. Once the preproduction part proves itself for proper fit and performance the plans can be released for production models.
So what you are reading is a production sidewinder was dynotested stock and then retested with a preproduction exhaust/muffler..
That dont mean that the finished product muffler will give you that much hp.
They are simply showing you what might be possible for production models
snowbeast
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Evo,stated stock boost on the sidewinder was 9lbs why did billies t-cat make 10.3 stock,that would exsplain why the cats are getting 200 plus hp if there ecu is set at 10.3lb boost stock,and SW is 9lbs.The preproduction muffler apparently increased the recorded boost also. It went from 10.3 on the stock muffler to 11.7 on the preproduction muffler.
WINDER1987
TY 4 Stroke Guru
I'm also curious about this I noticed this as wellEvo,stated stock boost on the sidewinder was 9lbs why did billies t-cat make 10.3 stock,that would exsplain why the cats are getting 200 plus hp if there ecu is set at 10.3lb boost stock,and SW is 9lbs.
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