Maintenance & Technical > KX500 Original
Project "I needed to clean the air filter so I blew the motor"
USMC 500:
--- Quote from: Motorrad on October 08, 2013, 02:54:27 PM ---
--- Quote from: USMC 500 on October 08, 2013, 02:50:24 PM ---
--- Quote from: Motorrad on October 08, 2013, 02:39:51 PM ---
--- Quote from: USMC 500 on October 08, 2013, 02:35:49 PM ---are we talking skirt mods only with NO window?
--- End quote ---
correct.
just happened to have a windowed piston to color on...
--- End quote ---
From what I've read in the past, having the window aided in additional lubrication to the wrist pin.....is this correct and if so is there the possibility of oil holes being added to certain areas???
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Team green really had a problem of under lubed upper end bearings in the baja 1000.... :roll:
sorry, in a argumentative mood tonight.
my department at work was just smeared all over the news
video is better than the text
http://www.10news.com/news/hundreds-of-fire-alarms-in-sweetwater-union-high-school-district-not-working-100813
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CRAP........is this just a black eye or are peoples jobs in jeopardy?
81cr450:
--- Quote from: Motorrad on October 08, 2013, 02:53:00 PM ---
--- Quote from: 81cr450 on October 08, 2013, 02:47:29 PM ---The window is 2hp in the middle of the powerband right?
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Based on what fact.
a guy that screwed all of us said so?
that and we never saw a dyno for it. atleast I didnt.
just sayin.
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Come on Stewie's "Gospel". http://www.youtube.com/watch?v=VAQz_g3qTO4
Hence the need of the dyno
Motorrad:
and not saying "S" was wrong. or right... so lets assume its a good 2HP
many I have chatted with agreed that if there was to be a window.. to move it up, and make it smaller. myself included.
Im just saying. if the window was good for 2hp. (theory)... was it because of added intake duration (360deg)? venting the trapped gass's? or evil elf magic :-o ??
BUT.
what if another method was better?
Im thinking that with the window. you get a good initial "squeeze" on the charge. when the transfers first open, you get a rush, that is then short circiuted by the window. since it all trys to equilize due to the sort of short circiut the window and rear boost port cause. possibly... in theory remember. causing the second half (1/3 or whatever) portion of the charge to get lazy...
NOW..
with the skirt trimmed.
you still have Nearly the same 360 port duration, since the second the piston closes the intake, the transfers open up, causing the AUX ports and rear boost to take over the "360" effect the window had. then the piston has the chance to COMPRESS the crapola out of the charge, through the entire cycle, as it cant escape from the window into the boost port., causing it to keep the velocity up in the transfers (oversized remember), through the ntire cycle........ the only issue here is trapped gass's, and reverse flow, short circiut from the floor ports..? But the floor ports are fairly small, vs the transfers, so the charge should stick to the transfer route, and actually pull from the floor??
oh wouldnt a flow bench be nice. with colored air... and transparent Jugs.
sandblaster:
--- Quote from: Motorrad on October 08, 2013, 03:28:04 PM ---
oh wouldnt a flow bench be nice. with colored air... and transparent Jugs.
--- End quote ---
And a ultra high speed camera to watch it in really slow motion :-)
Motorrad:
--- Quote from: sandblaster on October 08, 2013, 03:37:03 PM ---
--- Quote from: Motorrad on October 08, 2013, 03:28:04 PM ---
oh wouldnt a flow bench be nice. with colored air... and transparent Jugs.
--- End quote ---
And a ultra high speed camera to watch it in really slow motion :-)
--- End quote ---
and Oscar in a bikini, with a giant bowl of cheetoes, and margaritas.
Oh... wait. that was last weekend.
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