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Somender Singh


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#1 keithstef

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Posted 09 September 2004 - 09:35 AM

Very interesting info on head modifications!



http://www.popsci.co...,679464,00.html


Maybe the next head kit modification?

Maybe Cudney or Warga can try the design and dyno with results... ?



In short, the article shows how this exbike racer started fooling with motors.

He added groves to the head of several motors. The picture is better than my description... But he ground ~1/8-1/4" groves from the spark plug to the edge of the cylinder. Creates lots of turbulance to better mix the air and fuel.
He seat of the pants test showed lest fuel consumption, wider power curve, and a able to lower the idle and still run and perform well.

Just wanted to throw this out....
'08 800R Gade X
  • Hygear Trail Pro Package
  • Boss Seat
  • 1.5" 136" Intense
  • C&A Razors
  • Bergstrom Skegs - 6" Triple
  • DJ Clutch Kit
  • BJ Secondary Brace
  • RS Tunnel Braces

#2 keithstef

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Posted 09 September 2004 - 09:51 AM

Another link
http://racingarticle..._racing-31.html
'08 800R Gade X
  • Hygear Trail Pro Package
  • Boss Seat
  • 1.5" 136" Intense
  • C&A Razors
  • Bergstrom Skegs - 6" Triple
  • DJ Clutch Kit
  • BJ Secondary Brace
  • RS Tunnel Braces

#3 keithstef

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Posted 10 September 2004 - 05:25 PM

Just a thought!
'08 800R Gade X
  • Hygear Trail Pro Package
  • Boss Seat
  • 1.5" 136" Intense
  • C&A Razors
  • Bergstrom Skegs - 6" Triple
  • DJ Clutch Kit
  • BJ Secondary Brace
  • RS Tunnel Braces

#4 revgod

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Posted 11 September 2004 - 12:55 AM

Very interesting article and idea. I hope this becomes reality.

Innovation and creativity is what breeds better performance and economy. We all could benefit from this...
2006 MX Z X 440/800 (for sale)
440/800 mods

2006 800 powerTek engine
Jet-Hot ceramic coated stock pipe
Custom Axis front ski shocks re-valved and set up by HYGEAR
2006 C-36 440 shocks re-valved by HYGEAR

Engine:
Cudney reed spacers
XPS Semi-synthetic oil
Front Suspension:
Hygear prepped Custom Axis shocks with remote reservoir and dual rate springs
USI SPX skis with shaper bars
Rear Suspension:
stock 2006 440 rear suspension with HYGEAR prepped C-36 shocks, HYGEAR new pressure balance valve, and HYGEAR dual rate spring for center shock

handlebar:
stock 440 bars/controls with Mahler 6" riser
track:
Camoplast 1.25" fully clipped Rip-Saw track with 96 1.325" Woody's Gold Diggers studs. Fast Trac plastic backers
1.25" tunnel protector kit
clutching:
2006 BRP roller secondary
DJ S8R clutch kit

summer fun
2003 Ford SVT Cobra
4.6L V-8 with eaton supercharger
dynoed at 635 crank HP with 525 RWHP
pretty hard on tires though, LOL

#5 On the Pipe

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Posted 11 September 2004 - 07:59 AM

If I remember correctly that idea has been around for awhile. Back in around 1993 when I was racing grass, I remember a head for Sea Doo's with a swirl design cut into it. I can't remeber if we ever tried it on or race sleds or not.
(To many beers ago). But I believe this is not a new concept.

#6 Cudney Racing

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Posted 11 September 2004 - 04:24 PM

Yes this has been around for quite some time now and it has the same gains as a turboed crankshaft in a two stoke. ---------- "0"
www.cudneyracing.com
Ph: 705-685-7433

#7 BMEP

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Posted 11 September 2004 - 04:46 PM

Nothing new, like mentioned there was aftermarket pwc head with the same thing. Bud tested with them on his yamaha and saw nothing but another place for carbon to build up and more sharp edges to get hot and preignite.