| Slant Six Forum https://slantsix.org/forum/ |
|
| Wiseco / K1 Piston & Con Rod - What is Different? https://slantsix.org/forum/viewtopic.php?t=42837 |
Page 1 of 3 |
| Author: | Doc [ Fri Dec 10, 2010 10:50 am ] |
| Post subject: | Wiseco / K1 Piston & Con Rod - What is Different? |
Working on a long con rod SL6, using the Wiseco / K1 parts. (3.504 bore) The piston & rods just went together and we are "fitting" the rings now. (end gap check and file & recheck...) Here are some photos of our parts... nice stuff, even befroe we did the special prep work. DD  
|
|
| Author: | hellion_locdogg [ Fri Dec 10, 2010 2:00 pm ] |
| Post subject: | |
That's perty! 
|
|
| Author: | madmax/6 [ Fri Dec 10, 2010 5:21 pm ] |
| Post subject: | |
Ya drilled holes in the bottom ring land????? |
|
| Author: | hellion_locdogg [ Fri Dec 10, 2010 5:50 pm ] |
| Post subject: | |
Looks like he only chamfered the ones in the middle. |
|
| Author: | Doctor Dodge [ Fri Dec 10, 2010 6:26 pm ] |
| Post subject: | |
We did chamfer the two middle oil return holes... only on the "downhill" side. But there is something else... DD |
|
| Author: | Greg Ondayko [ Fri Dec 10, 2010 6:28 pm ] |
| Post subject: | |
Doc, Those pics bring back memories of a year ago when I was Putting Ruster's engine together. are you using cast crank K1 rods or forged crank? What valve size do you intend on running?? I am sure you are aware anything over~1.48 / /1.70 might crate some piston to valve interference as Guzzi Mark and I found out last winter / spring........ Also please enlighten us on the Oil ring supply holes / Chamfers. Thanks for your time, Greg |
|
| Author: | madmax/6 [ Fri Dec 10, 2010 6:32 pm ] |
| Post subject: | |
Ya cut some off the top of piston,,ya got dirty fingernails??? |
|
| Author: | madmax/6 [ Fri Dec 10, 2010 6:38 pm ] |
| Post subject: | |
Looks like .30 off the tops,,,from a year ago memory. |
|
| Author: | madmax/6 [ Fri Dec 10, 2010 6:47 pm ] |
| Post subject: | |
Going to revise that to 100 thousands cut off the pistons. |
|
| Author: | hellion_locdogg [ Fri Dec 10, 2010 7:27 pm ] |
| Post subject: | |
I like the ringed wrist pin instead of pressed and the skirt coating is nice too. |
|
| Author: | Doctor Dodge [ Fri Dec 10, 2010 8:02 pm ] |
| Post subject: | |
Quote: ...Also please enlighten us on the oil return ring supply holes / Chamfers.
Seeing that we drilled oil "spit" holes into the K1 rods, pointed up & into the pistons, we want to quickly return oil off the lower cylinder wall... so we added chamfer to those lower / inner oil return holes.And yes... we have a winner... The piston tops have been cut-down .140 We now have a true "zero deck" engine with this one. DD 
|
|
| Author: | madmax/6 [ Fri Dec 10, 2010 8:27 pm ] |
| Post subject: | |
That was $100.00 to the winner right? |
|
| Author: | Dart270 [ Sat Dec 11, 2010 7:14 am ] |
| Post subject: | |
Hope you don't melt those shiny new pistons - NA only? 0.140" off is a lot. Lou |
|
| Author: | Doctor Dodge [ Sat Dec 11, 2010 9:08 am ] |
| Post subject: | |
The plan is to start-off this motor in N/A configuration with 11 to 1 static CR and go from there... a small shot of spray would be the next step, then more CR if it "lives". I am most concerned about breaking the top ring land... I found a "before" photo of this piston, (thanks MS Matt) The valve notches are now 3 cc's DD 
|
|
| Author: | Rug_Trucker [ Sat Dec 11, 2010 10:08 am ] |
| Post subject: | |
Slinging too much oil on the cylinder wall may cause intake charge dilution with a low octane fuel. OIL! |
|
| Page 1 of 3 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|