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Buell Forum » Old School Buell » Archive through August 16, 2021 » 1250 cc / Mikuni HSR42 / 2 inch headers / stock muffler / stock heads (97 S1) « Previous Next »

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Falloutnl
Posted on Thursday, April 08, 2021 - 07:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
What do you guys think, is this a combination that could work in terms of just running right? Or would the muffler be too restrictive?

I have the Supertrapp on there now, but I'm not a huge fan of the sound it makes and I also wouldn't mind the more civilized noise levels of a stock exhaust.

Not saying I'm definitely doing this, but I was just wondering if someone on here has experience with a setup like this.
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46champ
Posted on Thursday, April 08, 2021 - 11:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Are you still running the stock cams?
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34nineteen
Posted on Thursday, April 08, 2021 - 11:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
My S1 is a 1275 with Hammers Impact porting on the original Lightning heads. Stock cams, stock CV carb, 2" header with a Drummer modified stock muffler. I'm *hoping* for 90hp at the wheel.
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Normthenomad
Posted on Thursday, April 08, 2021 - 02:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Think the stock muffler would kill the performance that you've spent time and money to achieve.The S1 and X1 cams are the same. They are also very close to the Andrews N4 cam.
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Normthenomad
Posted on Thursday, April 08, 2021 - 02:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Check the dyno charts on Hammer's website. Numerous examples of how much difference between exhaust helping/hurting performance.
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34nineteen
Posted on Thursday, April 08, 2021 - 05:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Aaron from Hammer has mentioned that the stock muffler creates a "hole" in the middle of the powerband.

Here's the thread from xlforum that he mentions it in.

http://xlforum.net/forums/showpost.php?p=3642037&p ostcount=8

I still have my Supertrapp in case my Drummer modded stock pipe doesnt work out.
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Falloutnl
Posted on Friday, April 09, 2021 - 01:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Stock cams, yes. Thanks for all the replies so far.
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Upthemaiden
Posted on Friday, April 09, 2021 - 08:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Just gave that thread a read through, got a little heated on page 2 haha.
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Falloutnl
Posted on Friday, April 09, 2021 - 08:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
lol, it did.

Interesting read though. Aaron is good people.
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