New WKA pipe testing

patrick slattery · Posted: Thu Nov 08, 2012 4:04 pm Post subject: New WKA pipe testing

We put the new Yamaha pipe on the Chassis dyno for some testing and I think you will be impressed with the performance and sound. It has a nice lower pitched sound, the good part though is it had tons of more power on the bottom, and it runs out at the top just shy of what an SSX currently is.

Peak torque is around 8200 to 8500 and does not have the double dips that a HPV pipe has. Temps seemed to be about 50 degrees less that the SSX and the carb tuning was similiar to the SSX. This test was on a Woltjer built motor for SSX so nothing special done for this pipe.

Pat

Ron Gordon · Joined: 27 Dec 2009 Posts: 150

So Pat,

How would you say this compares to (if at all) the old tried and true L2 pipe of the past (and someplaces present, Very Happy

)?

Also Pat, what do you see as the benefits to the Senior Karter of this pipe over the SSX Can other than the odvious power differences?

Ron
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Just another one of the Many OVKA Karter's
and OVKA Kid Kart Director

Ray Mcik · Joined: 26 Mar 2005 Posts: 531

Good info Pat, but not sure if should trust info from members on this site...
I think i will wait to hear from the local guy's.......

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Oh wait you are a local guy........ Laughing

sorry could not resist that one...

Pat , Seriously thank you for taking the time to test it....
Couple of questions, what is considered Top end for a SSX ? 13.9 , 14,000 14,500 ?

What do you think the effects are going to be on a single disk L&T dry clutch on a track we run locally ? (more turns less straightaways ) I ask because of the increased torque at the lower end ...

And do you think that if someone was to message the engine they could get more gains hp wise from a typical can set-up? Or will basically what has applied to the SSX can equipped Yamaha be the same ? I know you're not a engine builder but ...
typical two disk dry clutches should see less heat if the engagement is lower correct ?
I will be interested in seeing this tested on the track .
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Ohio Valley Karting Association
WWW.OVKA.COM

patrick slattery · Posted: Thu Nov 08, 2012 9:05 pm Post subject:

patrick slattery · Posted: Thu Nov 08, 2012 9:14 pm Post subject:

Frankie Schaffier · Posted: Sun Nov 11, 2012 8:05 am Post subject:

Thanks for taking the time to share your pull results. In the ball part of what others have been saying.

Has Camden made the call yet on running the pipe next year or not?
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Frankie

Comet Eagle
Emmick Elite-Parilla TT25
Burris Racing www.burrisracing.com
Stoney Creek Motorsports

Ray Mcik · Joined: 26 Mar 2005 Posts: 531

Hi Frankie,

I believe we are going to wait till after Daytona to decide what the club is going to do...we want to see what the feed back is..
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Ohio Valley Karting Association
WWW.OVKA.COM

Frankie Schaffier · Posted: Sun Nov 11, 2012 5:43 pm Post subject:

Tim Reed · Joined: 30 Jul 2002 Posts: 93 Location: Cincinnati

GLSS will comply with WKA.

RT66 and KRA as far as I know are keeping with the existing rules for both juniors and seniors. (Ie, no restrictor, and no pipe).

Frankie Schaffier · Posted: Mon Nov 12, 2012 7:12 am Post subject: