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Note the height of the primary tubes....definitely more clearance with CT:





As you can see, the bends of the exhaust are very similar. This indicates to me that Brock did not want to mess too much with a good thing. We already know the pipes make great power, so that is understandable.

Next I measured the exhaust spigots for both and the pipe ID for the new CT:

First, the Shortmeg header spigots:



Next the CT header spigot:



As you can see, the CT spigots are much larger. That is because the header pipes slide inside the spigot, instead of vice-versa. This eliminates any restriction.

In order for this to be useful, the CT header would have to be larger in ID than the standard spigots:



It is indeed about 2mm larger than the standard spigots. So, these new CT spigots will definitely remove a restriction. I imagine that this would really benefit a ported head or larger motor to an even greater extent.

Just to compare clearance, here are a couple of photos. In this first photo, the box pictured will not slide under the Shortmeg header...even though it has been flattened already:



Here you can see that it easily clears the header pipe on the CT:



There appears to be more than 1/2" additional clearance on the lower rightmost tube. The leftmost lower tube is not as big as an issue since it is in the center of bike and not as subject to contact during leaning.

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Lee, the only thing I can see that's wrong with the comparison of your bike and jesse's is dosent he have head work done? A thin head gasket? His cams degreed? Is the same stuff done to your bike?

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I would like to see the actual DYNO numbers on this CT exhaust vs. the older SMEG in a real life comparison of equal bikes. Stock vs. Stock same day, same bike etc........

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If it makes 5 more HP I would consider buying it. How do you feel about the sidewinder HP numbers vs. the SMEG? I never ride on the street and from my understanding the SW makes more power than the SMEG.

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Guys,

Jess and I spoke in advance: since he is small and uses ballast, he can use the increased average power to accelerate harder without letting up on the gas….and still benefit from what the dyno doesn’t show-the increase in power with the ram air working. Once he pulls it all together----he will FLY.

Gadson did last year and won the championship and set the et record at an 8.90. He ran a 5.79 in the eight and he was the largest rider in the class?!

Gotta wake up in a couple hours to leave for Daytona/Valdosta. See anyone at the Hess? Say hello

Brock
www.BrocksPerformance.com

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Funny it disappeared!

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that a boy shane... get that thread bumped back up there to the top :P. You know that all you have to do is ask old Stevie Wiffle and he'll bump it back up there for you .

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The best way to test these pipes is at the track.

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I'm sure that the miles and pounding that Jesse's bike have taken more than make up for that thin headgasket.

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Lee, the only thing I can see that's wrong with the comparison of your bike and jesse's is dosent he have head work done? A thin head gasket? His cams degreed? Is the same stuff done to your bike?

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