 the PISTON you HAD in '04-'05 .....VS....., the piston you GET in an '06 |
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 Feb 8 2006, 11:04 PM
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#1
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Peter PumpkinHead  Group: Sponsor Posts: 13014 Joined: 1-July 04 From: the shadows, outside your periferal vision Member No.: 327  |
the '06 HRC HONDA manual says to replace the piston at 15 hours of run time....
this should give you a little insight into why Honda says that...... i don't know if you can see it from the pictures, but the '06 piston's skirt isn't even as long as the wrist pin boss...the piston is sitting on the pin boss, NOT its skirt... it is easier to illustrate with extreme examples so think things this way... a cylinder bore that fits tight around a 50 cent piece... how much wear would have to take place before the 50 cent piece could spin end for end within the bore of the cylinder?? you get the idea :hey:
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2006_0208port06hrc0013.JPG ( 62.75K )
Number of downloads: 30-------------------- Venom Performance 517 655-2870
KBR 801 967-7100 ....learn to have some patience??!!......how long is THAT going to take??!!! |
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Feb 8 2006, 11:25 PM
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#2
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Part time genius. Group: Members Posts: 1927 Joined: 2-April 04 From: It does exactly what it say's on the tin! Member No.: 109 |
Is there room to make the skirt a bit longer? If done on the aftermarket piston you might not shave weight but could gain some durability.
-------------------- "I reject your reality, and subsitute my own." -Adam Savage
"It's true... I'm a rageaholic! I just can't live without rageahol!" -- Homer Simpson Jesus, save me from your follower's. Just fell of the turnip truck. The Simpsons have set a standard for us all to follow. I'll be damed if I don't follow that example! I may not be a religous man... but you will be when I'm done with you! "...the best thing would be to have a midget with a pocket full of cams that he can install in your quad for you to try out and decide which is best.... That would be far more useful than dyno runs."- Gabe 04 "Soon I discovered that this rock thing was true Jerry lee lewis was the devil Jesus was an architect previous to his career as a prophet All of a sudden, I found myself in love with the world So there was only one thing that I could do Was ding a ding dang my dang a long ling long" -Ministry, Jesus built my hotrod. "When we were thirsty for life, we drank vodka. When we were thirsty for water, we added ice." -Red Army Vodka |
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Feb 8 2006, 11:28 PM
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#3
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400EX Rider Group: Members Posts: 1115 Joined: 25-June 05 From: Phoenix, AZ Member No.: 2189 |
Woah, Mix....you have a photo studio, too? :ooh4: ;)
-------------------- Don't go looking for trouble , it'll find you anyway!
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Feb 8 2006, 11:40 PM
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#4
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Peter PumpkinHead Group: Sponsor Posts: 13014 Joined: 1-July 04 From: the shadows, outside your periferal vision Member No.: 327 |
QUOTE(dwp138 @ Feb 8 2006, 11:28 PM) Woah, Mix....you have a photo studio, too? :ooh4: ;) [right][snapback]193912[/snapback][/right] why yes i do :D it is very close to my porting bench.... i'm all about convenience! -------------------- Venom Performance 517 655-2870
KBR 801 967-7100 ....learn to have some patience??!!......how long is THAT going to take??!!! |
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Feb 8 2006, 11:42 PM
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#5
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Peter PumpkinHead Group: Sponsor Posts: 13014 Joined: 1-July 04 From: the shadows, outside your periferal vision Member No.: 327 |
QUOTE(the_hulkamaniac @ Feb 8 2006, 11:25 PM) Is there room to make the skirt a bit longer? If done on the aftermarket piston you might not shave weight but could gain some durability. [right][snapback]193908[/snapback][/right] i already worked all that good stuff out hulk.... that better piston setup is what is currently inside OttSixx -------------------- Venom Performance 517 655-2870
KBR 801 967-7100 ....learn to have some patience??!!......how long is THAT going to take??!!! |
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Feb 8 2006, 11:42 PM
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#6
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I'm the Jugernaut bizniggle Group: Members Posts: 5422 Joined: 17-September 04 From: San Diego, Ca Member No.: 606 |
looks just like the dirtbike piston in my dads bike, but with 3 rings instead of 2. Also looks just like my baldwin piston!
-------------------- "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind."
2004 red trx450r: Adapt graphics. HRC CAM 14.1 Baldwin Piston- It's in! Ported head- thanks Alex! W/ kibblewhite valves DD filter by KBR Full Rossier Exhaust Trailtech Red Flake Bars W/ 50W Torch Lights Maier flat Race Hood Tusk Billet Alumnium gas cap, and shifter GenX ATV Clutch Pearch W/ Hot start IMS 3.8 Gallon Clear Tank AC Pro Peg Nerfs lonestar +1 chrome stem AC racing front bumper Tires: Front: 22 inch tall sand stars Rear: 20x11x10 sand stars Jetting: 50 Piliot HRC Needle 3rd clip 175MJ 2005 Crf250- a couple dings and scratches.  |
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Feb 8 2006, 11:46 PM
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#7
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Peter PumpkinHead Group: Sponsor Posts: 13014 Joined: 1-July 04 From: the shadows, outside your periferal vision Member No.: 327 |
and that is exactly why Honda tells you to replace it every 15 hours of ride time... same as the CRF's replacement interval.... the skirt is only 20mm long!! (about 3/4")
-------------------- Venom Performance 517 655-2870
KBR 801 967-7100 ....learn to have some patience??!!......how long is THAT going to take??!!! |
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Feb 8 2006, 11:58 PM
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#8
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Part time genius. Group: Members Posts: 1927 Joined: 2-April 04 From: It does exactly what it say's on the tin! Member No.: 109 |
QUOTE(mixxer @ Feb 8 2006, 09:42 PM) QUOTE(the_hulkamaniac @ Feb 8 2006, 11:25 PM) Is there room to make the skirt a bit longer? If done on the aftermarket piston you might not shave weight but could gain some durability. [right][snapback]193908[/snapback][/right] i already worked all that good stuff out hulk.... that better piston setup is what is currently inside OttSixx [right][snapback]193927[/snapback][/right] After posting that I saw the other posting on the subject. Nice work. :thumbsup: -------------------- "I reject your reality, and subsitute my own." -Adam Savage
"It's true... I'm a rageaholic! I just can't live without rageahol!" -- Homer Simpson Jesus, save me from your follower's. Just fell of the turnip truck. The Simpsons have set a standard for us all to follow. I'll be damed if I don't follow that example! I may not be a religous man... but you will be when I'm done with you! "...the best thing would be to have a midget with a pocket full of cams that he can install in your quad for you to try out and decide which is best.... That would be far more useful than dyno runs."- Gabe 04 "Soon I discovered that this rock thing was true Jerry lee lewis was the devil Jesus was an architect previous to his career as a prophet All of a sudden, I found myself in love with the world So there was only one thing that I could do Was ding a ding dang my dang a long ling long" -Ministry, Jesus built my hotrod. "When we were thirsty for life, we drank vodka. When we were thirsty for water, we added ice." -Red Army Vodka |
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Feb 9 2006, 12:07 AM
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#9
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I'm the Jugernaut bizniggle Group: Members Posts: 5422 Joined: 17-September 04 From: San Diego, Ca Member No.: 606 |
so I have to get a new baldwin after 15 hours! lol
J/K -------------------- "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind."
2004 red trx450r: Adapt graphics. HRC CAM 14.1 Baldwin Piston- It's in! Ported head- thanks Alex! W/ kibblewhite valves DD filter by KBR Full Rossier Exhaust Trailtech Red Flake Bars W/ 50W Torch Lights Maier flat Race Hood Tusk Billet Alumnium gas cap, and shifter GenX ATV Clutch Pearch W/ Hot start IMS 3.8 Gallon Clear Tank AC Pro Peg Nerfs lonestar +1 chrome stem AC racing front bumper Tires: Front: 22 inch tall sand stars Rear: 20x11x10 sand stars Jetting: 50 Piliot HRC Needle 3rd clip 175MJ 2005 Crf250- a couple dings and scratches. |
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Feb 9 2006, 12:23 AM
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#10
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TRX90 Rider Group: Members Posts: 9 Joined: 5-August 05 Member No.: 2376 |
We don't get a top view of the 06 piston? :P
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Feb 9 2006, 12:26 AM
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#11
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Peter PumpkinHead Group: Sponsor Posts: 13014 Joined: 1-July 04 From: the shadows, outside your periferal vision Member No.: 327 |
that is the oem 06 piston with the black skirt...
just a step domed style... i don't think i even took a picture of it -------------------- Venom Performance 517 655-2870
KBR 801 967-7100 ....learn to have some patience??!!......how long is THAT going to take??!!! |
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Feb 9 2006, 12:48 AM
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#12
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400EX Rider Group: Members Posts: 1323 Joined: 24-April 05 Member No.: 1876 |
so will the black widows be short like this for the 04-05 and 06 models? will there be gains over the previous HH pistons for the 04-05 owners?
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Feb 9 2006, 12:55 AM
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#13
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Peter PumpkinHead Group: Sponsor Posts: 13014 Joined: 1-July 04 From: the shadows, outside your periferal vision Member No.: 327 |
short pistons don't live very long...and as much work as i do on engines, i do it to modify them so i like doing it.....
but replacing parts when they are worn out is another deal... i hate doing that, even if it is the same work.... i won't be making any super short pistons like the oem crf\trx one you see here -------------------- Venom Performance 517 655-2870
KBR 801 967-7100 ....learn to have some patience??!!......how long is THAT going to take??!!! |
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Feb 9 2006, 01:06 AM
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#14
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TRX90 Rider Group: Members Posts: 9 Joined: 5-August 05 Member No.: 2376 |
Oops my bad. I thought we were looking at the 06 Black widow. Dang that is a big change from the 04-05 to the 06 oem piston.
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Feb 9 2006, 06:57 AM
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#15
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450R Rider Group: Banned Posts: 2235 Joined: 11-December 05 From: SW Florida Member No.: 3246 |
QUOTE(Trx450always @ Feb 9 2006, 12:07 AM) so I have to get a new baldwin after 15 hours! lol J/K [right][snapback]193943[/snapback][/right] I also have the Baldwin...$245 a pop + Gaskets + Tear Down......every 15 hours my A$$.......... I'll buy mixxers BW asap!!!! --------------------  |
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