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Somender,

To let you know - John John (JJ) took Western Canadian Championship on 85 Yamaha with Somender's 5 groove set-up. Shaving head 10 thou out-performed 3 groove. Jet sizing way down - performance way up. 4 stroke Honda was hole shotting 90% of every race. Thank you very much for helping us out. Happy New Year & best wishes to you and yours. kp / whitecourt

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Combustion burn pattern

Combustion burn pattern from a 355 CI grooved bracket engine, one year run time.

It was running slightly richer than normal.

AFR 190 heads with 67CC combustion chambers
Mini dome pistons - steel rods
Isky solid flat tappet cam 263/268 0.050” - 0.555” lift.
11:1 compression - 0.037” squish clearance
750 Holley - 83 jets square – Victor Jr. intake
RPM range 5200 – 7200
10.65 ET @ 123 MPH at 3000 Lbs.

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Comments

Just wanted to say hi!
Written by Francis on 2010-02-08 22:50:20

What is up everyone? My name is Jessica. I am from Slovakia. I am new to the forum and just wanted to say hi.. I hope I posted this in the right section on your forum... [url=http://somender-singh.com/?5b7e542473dd0177b95ce3f7bfe]http://somender-singh.com/?5b7e542473dd0177b95ce3f7bfe[/url],

2 stroke nut
Written by Guest on 2006-08-24 14:04:06

the grove thing works but what about multiple groves on a squishband 2 stroke head? test resuluts seem positive on my 87 yz490

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Friday, 03 September 2010