SlowMoe Posted February 10, 2017 Author Report Posted February 10, 2017 Exhaust port opens @ 90 atdc transfer 118 atdc. I believe that is 180/ 124. Does that sound right for a 4 mill long rod with a stock cylinder? Sent from my iPhone using Tapatalk Quote
SlowMoe Posted February 10, 2017 Author Report Posted February 10, 2017 Sent from my iPhone using Tapatalk Quote
bigweav81 Posted February 10, 2017 Report Posted February 10, 2017 Post a pic of the tops of the cylinders maybe. Have that same degree wheel.....kind of confused the hell out of me first time I looked at it.......lol Sent from my SM-S820L using Tapatalk 1 Quote
gusto Posted February 10, 2017 Report Posted February 10, 2017 Seeing the bible in the background is making me think of the song "jesus built my hotrod." 2 Quote
Ayesully810 Posted February 11, 2017 Report Posted February 11, 2017 Seeing the bible in the background is making me think of the song "jesus built my hotrod." Good book brah and if Jesus had a quad it would def be a banshee. Real talk haha 1 Quote
SlowMoe Posted February 11, 2017 Author Report Posted February 11, 2017 What I meant was, do those sound like typical 4mill stock cylinder numbers? I was tho king the exhaust duration would be higher Sent from my iPhone using Tapatalk Quote
ClaudeMachining Posted February 11, 2017 Report Posted February 11, 2017 *Edited Stock 120/185/32.5 Driveline HP 126,5/194,5/34 Driveline LP 122/189/33,5 Cub 130/197/33,5 Serval 126/188/31 Quote
bigweav81 Posted February 11, 2017 Report Posted February 11, 2017 Yeah he does lol Sent from my SM-S820L using Tapatalk Quote
ClaudeMachining Posted February 11, 2017 Report Posted February 11, 2017 Pretty sure you have the stock number wrong. They are a lot lower. Like 185/120 Yup, sorry, bad copy past. Quote
SlowMoe Posted February 11, 2017 Author Report Posted February 11, 2017 Ok been doing some grinding. Here are the tools I'm using Sent from my iPhone using Tapatalk Quote
SlowMoe Posted February 11, 2017 Author Report Posted February 11, 2017 Exhaust port before Exhaust port after (still need to clean it up a bit and throw a fresh hone) Sent from my iPhone using Tapatalk Quote
SlowMoe Posted February 11, 2017 Author Report Posted February 11, 2017 Here is some mismatch that I cleaned up Sent from my iPhone using Tapatalk Quote
SlowMoe Posted February 11, 2017 Author Report Posted February 11, 2017 Final numbers are 196* exhaust 124* transfer, with no spacers. The exhaust port got raised about 3.5 mm and widened a lot, lol. Maybe 8-10mm total. This is a lot and shouldn't be attempted unless you have a good game plan Sent from my iPhone using Tapatalk Quote
bigweav81 Posted February 11, 2017 Report Posted February 11, 2017 (edited) May wanna raise transfers a bit. Idk I always read for a 2 stroke to be operational. A blowdown of 30*-35* is necessary. I could be wrong though. Sent from my SM-S820L using Tapatalk Edited February 11, 2017 by bigweav81 Quote
SlowMoe Posted February 11, 2017 Author Report Posted February 11, 2017 I thought I was at 35* Sent from my iPhone using Tapatalk Quote
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