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pash
 Post subject: Re: new exhaust
PostPosted: 13 Feb 2010 21:54 
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proff. patpending
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I am sure Albert wont mind me sending you a bit of data to have a look at.

Not sure what Perl is, are you referring to ZZ Top's Perl Necklace?

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sportster_mann
 Post subject: Re: new exhaust
PostPosted: 13 Feb 2010 22:18 
PERL
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pash
 Post subject: Re: new exhaust
PostPosted: 13 Feb 2010 22:28 
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So, some power and torque curves, all taken with the engine at between 80 and 82 deg C and with SAE atmospheric correction applied (I gave you indicated power on the day).


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daywalker
 Post subject: Re: new exhaust
PostPosted: 13 Feb 2010 22:38 
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Incredible how close the traces are with very different exhausts to the standard one.

Reverso model is looking very good.

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Jill Brown
 Post subject: Re: new exhaust
PostPosted: 13 Feb 2010 23:38 
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pash wrote:
Not sure what Perl is, are you referring to ZZ Top's Perl Necklace?


:o Pash, I am shocked..... :rofl:

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pash
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 07:47 
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Yeah, my spelling is atroshos

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vern
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 09:40 
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Strikes me that Buell did a pretty good job on the standard exhaust. Shame it's not made of something more durable.
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albert666
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 13:21 
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yep standard can is pretty good, shame thet don't last, we need a stainless pressing of that, i wonder who has the tooling?
also could do with trying a bog stardard can on mine as mine has had some of the guts altered :)

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yourguitarhero
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 18:52 
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tubbs wrote:
yourguitarhero wrote:
Slight de-rail, is there a map going around for the Tubbs XB exhaust on an XB12 with a K&N filter?
just a tubbs pipe and k&n should be fine without any mapping i have looked at a few and are a tad and i mean a tad on rich side but for the road im happy with that, now i know theres more in it with that set up but as each bike is so different it (imo) be hard to do a blanket map.


Yeah cool. The map for my Termi will probably be OK. I've got all the kit for datalogging etc. Once I get the pipe on I'll be able to do a few runs, work with this new tuning guide and Megalog and see if I can get something nice.
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pash
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 19:24 
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proff. patpending
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I used Snagit too, for one run:

http://www.youtube.com/watch?v=y8QGTNI0MRo

And for those in China:

Image

When we go again, ECMSpy should record the wideband output also, so no need for such tomfoolery :D ...

Don't get too excited about the videos...

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gunter
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 19:59 
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Lovely. The first time I see the software actually running on DDFI-3 bike.
Ooops. I better should not have said that.

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pash
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 20:05 
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I have been using it on DDFI-3 since the 60s... ;)

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Jill Brown
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 20:32 
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pash wrote:
I have been using it on DDFI-3 since the 60s... ;)


From the 60's???? I am sure you must be wrong. There is no way you are older than 40 max....

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daywalker
 Post subject: Re: new exhaust
PostPosted: 14 Feb 2010 22:03 
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albert666 wrote:
yep standard can is pretty good, shame thet don't last, we need a stainless pressing of that, i wonder who has the tooling?
also could do with trying a bog stardard can on mine as mine has had some of the guts altered :)


Ah that explains it then. I was sure that the standard can could not be flowing as much as on of your designs based on the sliced on I saw on bad web.

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albert666
 Post subject: Re: new exhaust
PostPosted: 17 Feb 2010 19:52 
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still plodding on with development, got front header jigged now, maybe try some bigger pipes, and the reverso is coming on, no weigh ins yet, promise i will do them this weekend :)

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