[Ducati] 2 into 1 exhaust for 900SS? (Kevin going to dark side)

Wed Nov 21 18:12:56 EST 2007

Hi All
For a start Check this for a +100hp 966 2V Ducati 
http://www.ca-cycleworks.com/shop/heads/dyno.html
And this combo gain torque & horsepower everywhere NOT just on top
"Streetability" is NOT compromize on the contrary this thing rock!!!
Best all around 2V Ducati from getting a quart of milk to the convenience 
store to the track on weekend!
Hope this help!
Guy Martin----- Original Message ----- 
From: "Mark Hatten" <hatman at columbus.rr.com>
To: "Ducati Owners Group" <ducati at ducati.net>
Sent: Wednesday, November 21, 2007 4:40 PM
Subject: Re: [Ducati] 2 into 1 exhaust for 900SS? (Kevin going to dark side)

> Kevin, my question would be:  what exactly are you trying to accomplish 
> with your 900SS?  Streetbike?  Trackbike?  Racebike?
>
> Some of the information you're getting seems to be, to me at least, 
> somewhat contradictory.  Individual 41s on short manifolds will indeed net 
> a few more horses, but it's all from 7k to 8k.  The power starts falling 
> off at 7k when the 41s are mounted on stock manifolds.  Prior to 7k, the 
> power curve is virtually identical between the two.  So the individual 
> carbs/short manifolds don't really seem to be in keeping with your quest 
> for mid-range.
>
> Check out the dyno charts on Hordpower.com's website -- www.hordpower.com. 
> JD builds my Ducati race engines, and several of the dyno charts are of my 
> 900SS/SP.  My bike, with high-comp pistons, 41mm Kehins on stock intakes, 
> and Termi slip-ons made 84 hp, on a notoriously stingy dyno (my 749R/848R 
> racebike usually reads about 2-3 hp higher on the Dynojet dyno at the AMA 
> races than on JD's dyno, which is the same brand an model).  He even 
> admitted that was high for a 900SS, but why argue with success/good luck?
>
> A 944 kit will add a bit more power, but you'll never see much more power 
> from a 900SS until you *really* work on the ports in the head, install big 
> valves, new cams, short intakes and individual carbs.  You're going to 
> spend a bunch of money and the power gained will be at the top of the rpm 
> range. And you'll lose some of the "streetability" that makes the 900SS 
> such a fun bike.  I've heard a lot of claims over the years, but I've yet 
> to see (nor has JD) a 900SS put out more than 100 hp on his dyno.  So 
> you'll be spending a *lot* of money to pick up 10-15 hp in the upper end 
> of the powerband.  To me, unless you're racing, that's not what the 
> Supersport bikes are all about.
>
> I don't know a lot about the 2-1 exhausts -- I've never owned one and I've 
> never really seen any comparative dyno charts for one.  I do know that 
> most of the AHRMA racers run 2-1-2 exhaust, even though many have tried 
> the 2-1 systems.
>
> My bike now has a full Termi spaghetti system like yours does.  I haven't 
> dyno'd it since I installed it, but it adds enough ground clearance (and 
> looks so cool) that I'd leave it on even if I lost some hp!  The things 
> are extremely rare and very desirable, so if you do go to a 2-1, you can 
> probably sell your Termi system for enough to finance the custom 2-1 and 
> have money left over.
>
>
> Mark Hatten
> Wounded Duc -- Used Ducati Parts Online
> Home of the "Loud Clutches Save Lives" T-Shirts
> www.woundedduc.net
> (Note the URL change!)
> AMA Pro #352
> AHRMA #52 (#1 for 2007)
> "Racing makes heroin addiction look like a vague wish for something 
> salty" - Peter Egan
>
>
>
>
>
>
> ----- Original Message ----- 
> From: "Kevin Kachadourian" <kkachadourian at cv.k12.ca.us>
> To: <ducati at ducati.net>
> Sent: Wednesday, November 21, 2007 2:41 PM
> Subject: [Ducati] 2 into 1 exhaust for 900SS? (Kevin going to dark side)
>
>
> Okay, I took the SP up to Craig at Hanson Racing Technology. Amongst his 
> recommendations (others in following posting), was to let him build a 2 
> into 1 exhaust system for the bike. I did a little research, and didn't 
> find much information about it. I did find a rant that said that there was 
> no improvement in performance, and they had a couple of dyno test charts 
> to support their argument (charts which I could not quite figure out).
> I've got a 51mm Termignoni spaghetti system on the bike now, and thought 
> that was the top. But, Craig said that I would have noticable midrange 
> improvement with his 2 into 1 system. Craig was able to deliver everything 
> he claimed when he built a 2 into 1 for the Alazzurra, but that was a 
> slightly different situation (we were switching from the stock skinny 
> pipes to Craig's system, not from fat Termis). What Craig claims, which is 
> what I want, is better perfomance overall, and especially in the midrange 
> (which is where I do most of my heavy throttling and accelerating).
> It's hard to ignore Craig's advice. He did such a nice job of making the 
> Alazzurra motor the sweetest running motor I've ever had, and plans on 
> doing the same for the Duck (good rings, check cylinder barrels, set cam 
> timing, port out heads, set squish bands,... I get all excited just 
> thinking about it).
>
> Does anyone have knowledge, information, or experience with 2 into 1 
> (especially in comparison to Termi spaghetti)?
>
> Kevin Kachadourian
> '96 900SS SP
> '85 650 Alazzurra
> *****
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> Our newest sponsor, MC Stands, has just opened its doors!  It's a 
> motorcycle
> stand superstore.  Every brand, every model, 95% in stock for immediate
> shipment. Whether front stands, rear stands, paddock stands, dirt bike
> stands, or any kind of stand or lift, MC Stands tests, rates, and 
> discounts
> everything they sell.  Check them out!
>
> Visit: http://mcstands.com/
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