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Main Area => General GS500 Discussion => Topic started by: 90GS500rehab on August 13, 2003, 08:28:47 PM

Title: Jetting again! Dual pipes?
Post by: 90GS500rehab on August 13, 2003, 08:28:47 PM
Ok so my never ending project is wrapping up. Got the 150/40/2 washers in the bike w/ K&N pods. Right now I have the stock can on so I know we will be way rich but these will be here on Friday:

Ducati ST4 S cans
(http://ebay0.ipixmedia.com/abc/M28/_EBAY_f739027fcfee3899a154d1e849199486/i-1.JPG)

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&category=35619&item=2425098898

For the jet guru's, do you think these two cans will flow the same as a single "race" can. I'd rather not core them but I've haven't been able to find a post on jet results on a dual can setup.

Thanks!!!!!
Title: Jetting again! Dual pipes?
Post by: JasonB on August 13, 2003, 08:41:03 PM
Post over on the uk board as a member there has dual cans and he can let you know what he did for his jetting.
Title: Jetting again! Dual pipes?
Post by: 90GS500rehab on August 13, 2003, 08:46:47 PM
Quote from: JasonBPost over on the uk board as a member there has dual cans and he can let you know what he did for his jetting.

Thanks!
I think I have seen pics of that bike. I see what I can find over there.
Title: Stock bike...
Post by: The Buddha on August 14, 2003, 12:29:10 PM
It will not flow more than stock head pipe and slip on or aftermarket pipe...atleast where jetting is concerned. The resistance from your ports I think is the limiting factor once you take off the stock can. You start doing some flowing porting work and then you may need better pipes...but for now you bike is limited by the ports and flow rate.
Cool.
Srinath.
Title: Re: Stock bike...
Post by: 90GS500rehab on August 14, 2003, 10:19:56 PM
Quote from: seshadri_srinathIt will not flow more than stock head pipe and slip on or aftermarket pipe...atleast where jetting is concerned. The resistance from your ports I think is the limiting factor once you take off the stock can. You start doing some flowing porting work and then you may need better pipes...but for now you bike is limited by the ports and flow rate.
Cool.
Srinath.

Yes, for sure, as long as two stockers will flow as much as a good slip on, that is what I am looking for.
Title: Stock...
Post by: The Buddha on August 15, 2003, 07:11:47 AM
Oh...they are stock...From what bike...They look like they have those bolts with welds to keep you from un screwing them...grind it with a drememl tool and unscrew them and make sure they atleast have a dime sized flow through...else they may be no better than the stock... Maybe just open up the thing to a quarter size hole and put 1 on instead of 2.
Cool.
Srinath.
Title: Jetting again! Dual pipes?
Post by: 90GS500rehab on August 15, 2003, 08:35:44 AM
Ducati ST4
Title: Jetting again! Dual pipes?
Post by: Piper5177 on August 15, 2003, 09:23:36 AM
Those will definitely flow better than the stock can, I dont know about if it will be better than an after market can.  You'll probably still get more back pressure than a V&H or a Yosh.  What headers are you using?
Title: Jetting again! Dual pipes?
Post by: 90GS500rehab on August 16, 2003, 07:18:07 PM
Standard head pipes for now.
Title: Jetting again! Dual pipes?
Post by: 96gs on August 17, 2003, 09:52:20 AM
you can out dual pipes on a gs?
Title: Jetting again! Dual pipes?
Post by: 90GS500rehab on August 17, 2003, 10:45:27 AM
Yes, I'm having an exhaust shop cut at the collector and make a new Y pipe.