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Crossover works!


Guest jimjib

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Janusz, from what I can tell from dyno tests at the below listed site, there is no definitive compromise. The Stucchi simply fills the hole in the midrange.

http://manleycycle.com/Tech/more_mg.htm Those tests were done with Mistral or Agostini mufflers.

The Mistral CROSSOVER apparently boosts the midrange even more, albeit at the expense of high rpm horsepower.

The Maxtreme muffler apparently has even more horsepower and fills the hole, while using the stock crossover. see

http://www.dawebcity.com/fotoalbums/index/...1256BF300725A32

I suspect other free flowing mufflers will equal the performance.

And for comparison, if you want a look at a stock dyno chart checkout http://www.geocities.com/guzzitech_pages/V11LMDyno.jpg

and while I am at it, here is a dyno chart from using raceco mufflers,

http://www.scripps.edu/~dlaing/v11s/PDQDyno.jpg

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Guest mcloutier

jimjib, I have head of drilling the cans but I am unclear as to what exactly people are doing. Can you fill me in on this? Did they get much louder? Any noticeable difference?

 

Thanks,

Michael Cloutier

Moses Lake, WA, USA

2002 Lemans 800 trouble free miles and counting.

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Guest jimjib

Very easy to do and no down side. The sound is greatly improved although I wouldnt mind a few more db

 

Remove the end cap and drill as many holes as you can, in the face of inner plate....I think I used a 3/8 drill but it really shouldnt matter. I did this twice because I didnt get enough holes in it the first time around. Also, cut off the end of the tube that sticks out of the inner plate. I did a quicky job because I did it 1/2 hour before a ride...but you never see it anyway so ....who cares. I think 99% of the guys that do this will think the sound is just right.

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Jimjib, I think thay your set up is the most sensible one and that is what I am slowly doing. I have a Power Commander now and the map there is the stock one (that's what the Dynojet installed, M706-001.MAP). I am waiting now for my Stucci X-over and then I am gonna drill the muffler.

 

What I want to ask you is this: do you still use a stock map on your Power Commander or did you modify it somewhat to allow for drilled muffler and Stucci X-over. If you did change the PC map, how did you do it? Thanks.

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  • 1 month later...

I havent run it on the stock map since I installed the crossover. I have to say that I am totaly happy with the setup now. I may want to eventually want even more sound but for now its just right.

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Guest mcloutier

I just wanted to let everyone know that I drilled out the cans about a week and a half ago and I couldn't be happier with the change. Nice balance between the valve train and the exaust. Sounds beautiful crusing at 5K.

 

Michael Cloutier

Moses Lake, WA

02' Le Mans

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Just drilled out my stock pipes as Jimjib describes. Sound changed tremendously. Sound reminds me of my Ducati 907 with the Ferracci CF pipes. Plan on adding a K&N filter, Stucci x-over and possibly re-mapping.

 

Thanks Jimjib,

 

J.Bee

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