Notices
Engine & Drivetrain VQ Power and Delivery

DE Motor Questions

Thread Tools
 
Search this Thread
 
Old 08-16-2012, 12:07 PM
  #21  
binder
New Member
iTrader: (8)
 
binder's Avatar
 
Join Date: Jan 2007
Location: terre haute, IN; STL, MO
Posts: 6,457
Likes: 0
Received 7 Likes on 6 Posts
Default

Originally Posted by bmccann101
^^ all about seating piston rings properly.. yes indeed...
i hear the hard break in is the way to go as well.. Id imagine very important for buit enignes w FI to reduce sealing issues and blow by etc etc..
yes indeed.

Combustion chamber pressures press on the rings and force the rings into the walls of the cylinders thus wearing them together. The better the seal created by pressure the better the rings and cylinders fit together.
Old 08-16-2012, 12:42 PM
  #22  
DaveJackson
Master
iTrader: (5)
 
DaveJackson's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,754
Received 55 Likes on 46 Posts
Default

Very surprising news and thanks for the info!!
Wish I knew this when I was putting around at ultra low rev's trying to break in my bike. It took FOREVER. Kawasaki threatened something about molybdenum coating on the pistons that could be damaged by high initial rev's before fully broken in. I didn't trust johnny YouTube, there, but I trust your judgement and experience.
Old 08-16-2012, 01:16 PM
  #23  
binder
New Member
iTrader: (8)
 
binder's Avatar
 
Join Date: Jan 2007
Location: terre haute, IN; STL, MO
Posts: 6,457
Likes: 0
Received 7 Likes on 6 Posts
Default

Ya, molybdenum coating is already nice and cured well before they assemble the engine. It won't get damaged any more during break in than after.
Old 08-16-2012, 06:09 PM
  #24  
04.350z
New Member
iTrader: (5)
 
04.350z's Avatar
 
Join Date: Mar 2008
Location: Champaign Illinois
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
Default

you can change dyno numbers simply by changing tire pressures.
Old 08-17-2012, 08:40 AM
  #25  
binder
New Member
iTrader: (8)
 
binder's Avatar
 
Join Date: Jan 2007
Location: terre haute, IN; STL, MO
Posts: 6,457
Likes: 0
Received 7 Likes on 6 Posts
Default

Originally Posted by 04.350z
you can change dyno numbers simply by changing tire pressures.
And tire diameters and weight, etc etc.

It's so easy to skew numbers. That's why i laugh when people come on here and say "omg, i re-dynoed 2 months later and lost 5hp, what happened? is my car going to blow up??".
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
XM 1
Engine & Drivetrain
29
07-10-2022 07:44 AM
MM'08_350Z
VQ35HR
225
04-22-2021 09:42 PM



Quick Reply: DE Motor Questions



All times are GMT -8. The time now is 08:27 PM.