Thermostat or not on full race engine? (660) - Yamaha Raptor Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 10-19-2006, 11:49 PM Thread Starter
Member
 
Chrisjan's Avatar
 
Join Date: Oct 2005
Posts: 98
Thermostat or not on full race engine? (660)

I have a full race engine, 686 CP12.5 Piston, Custom head, Custom cams, Custom fuel injection.( 2x 45mm Throttlebodies)

Wwhat is the pros and cons of taking the thermostat out?
Chrisjan is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 10-22-2006, 05:47 PM
 
Join Date: Oct 2006
Posts: 1,674
Re: Thermostat or not on full race engine? (660)

Keep the thermostat. It holds the coolant in the radiator a little longer, so you get a little less flow, but the incoming coolant is cooler.
pewterpecker is offline  
post #3 of 3 (permalink) Old 10-29-2006, 04:44 PM
Moderator
 
Mad Dog's Avatar
 
Join Date: May 2005
Posts: 17,054
Re: Thermostat or not on full race engine? (660)

Pro: immeasureable power increase from drop in resistance

Con: difficulty getting bike up to operating temperatures and the resulting damage that ensues from running her WO when cold.

Mike

Photobucket is trash now, use something else.
Mad Dog is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Yamaha Raptor Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
How do you test thermostat? Fan not coming on. APachon71RN Raptor 700 Maintenance 4 10-16-2014 10:33 PM
2001 660 thermostat housing leak HELP!! js380 Raptor 660 Maintenance 8 10-12-2009 07:02 AM
Thermostat Question dberry367 Raptor 660 Maintenance 5 03-15-2007 02:07 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome