Chamber and dish volume differences between 07 and 08 - Victory Forums - Victory Motorcycle Forum
Reply
 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 15 (permalink) Old 07-25-2015, 07:48 PM Thread Starter
Senior Member
 
rumblebox's Avatar
 
Join Date: Dec 2013
Location: Victoria, TX
Posts: 290
Garage
Default Chamber and dish volume differences between 07 and 08

Could someone post the cylinder dish and combustion chamber volumes for 07 and 08 100 engines so i can determine my exact compression with a simple slug swap..... and so i can determine if it's even worth the time.

Thanks in advance.

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan

Last edited by rumblebox; 07-25-2015 at 09:09 PM.
rumblebox is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 07-26-2015, 12:14 PM
Senior Member
 
visionjohnny's Avatar
 
Join Date: Sep 2010
Location: minnesota
Posts: 12,947
Default

write Rylan tell him what you're up to or want to

The Vic Shop

26416 289th Place, Suite F
Adel, IA 50003

[email protected]
515.339.4313

2008 Vision
Mpls, MN.

Please add your state and model of bike you have. Click user CP @ top of page and then far left click edit signature. Thanks
visionjohnny is offline  
post #3 of 15 (permalink) Old 07-27-2015, 05:58 AM
Lifetime Premium
 
kevinx's Avatar
 
Join Date: Dec 2009
Location: At Southern Motorworx. High Springs Fl
Posts: 2,646
Default

It's not the dish in the piston, but the offset of the wrist pin. When used in an 07 the 08 Pistons net you roughly 10.25:1cr. Just under half a point.

I'm not an asshole...I just type that way
Check us out at Southern Motorworx on FaceBook
https://www.facebook.com/home.php
http://www.southernmotorworx.com/index.html
kevinx is offline  
Sponsored Links
Advertisement
 
post #4 of 15 (permalink) Old 07-27-2015, 07:28 AM Thread Starter
Senior Member
 
rumblebox's Avatar
 
Join Date: Dec 2013
Location: Victoria, TX
Posts: 290
Garage
Default

Quote:
Originally Posted by kevinx View Post
It's not the dish in the piston, but the offset of the wrist pin. When used in an 07 the 08 Pistons net you roughly 10.25:1cr. Just under half a point.
Do you know their position relative to the deck?

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan
rumblebox is offline  
post #5 of 15 (permalink) Old 07-27-2015, 07:34 AM
Lifetime Premium
 
Motorbikerx's Avatar
 
Join Date: Dec 2013
Location: Gold Coast, Australia.
Posts: 8,647
Garage
Default

think I saw somewhere that milling the base of the cylinders raises compression somewhat.
can't remember where but.

Victory Vegas 2010
Lloydz 109"cube big bore
" " 495 cams
" " TorqueTubes
" " timing wheel @4 deg.
" " Primary plate
" " IAV
RPW Slash pipes
PCV
Progressive 465 rear shock
Kingpin USD Forks
18" XC front wheel
1 3/4" 'Burleigh Bars'
Stebel air horn
12.106 @110.90mph
114/123

Victory Cross Country 2010 (106)
Lloyds air filter
" " VM1 Cams
Home gutted exhaust
Maximus
Both tuned by [email protected] Dyno
110/116

Gold Coast
Australia
Motorbikerx is offline  
post #6 of 15 (permalink) Old 07-27-2015, 08:09 AM Thread Starter
Senior Member
 
rumblebox's Avatar
 
Join Date: Dec 2013
Location: Victoria, TX
Posts: 290
Garage
Default

Quote:
Originally Posted by Motorbikerx View Post
think I saw somewhere that milling the base of the cylinders raises compression somewhat.
can't remember where but.
Thats true, but depending in the piston height, the quench could be too tight at that point.

Having a tighter quench typically creates more turbulence, thus creating a more efficient burn, which makes more MPG and less potential detonation. If it's to tight though, you risk smacking the head with the piston.

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan
rumblebox is offline  
post #7 of 15 (permalink) Old 07-27-2015, 08:51 AM
Lifetime Premium
 
kevinx's Avatar
 
Join Date: Dec 2009
Location: At Southern Motorworx. High Springs Fl
Posts: 2,646
Default

Quote:
Originally Posted by rumblebox View Post
Thats true, but depending in the piston height, the quench could be too tight at that point.

Having a tighter quench typically creates more turbulence, thus creating a more efficient burn, which makes more MPG and less potential detonation. If it's to tight though, you risk smacking the head with the piston.
Decking the base of an 07 cyl .030 gives you a nice tight quench area, and also makes about a half a point of compression.
Had all the math in a notebook on pin to crown, and cc of the popular heads. Unfortunately when I moved from the dealer to my new shop; that notebook disappeared. Fortunately for me I remember the end results of the math in my little head

I'm not an asshole...I just type that way
Check us out at Southern Motorworx on FaceBook
https://www.facebook.com/home.php
http://www.southernmotorworx.com/index.html
kevinx is offline  
post #8 of 15 (permalink) Old 07-27-2015, 11:54 AM Thread Starter
Senior Member
 
rumblebox's Avatar
 
Join Date: Dec 2013
Location: Victoria, TX
Posts: 290
Garage
Default

Quote:
Originally Posted by kevinx View Post
Decking the base of an 07 cyl .030 gives you a nice tight quench area, and also makes about a half a point of compression.
Had all the math in a notebook on pin to crown, and cc of the popular heads. Unfortunately when I moved from the dealer to my new shop; that notebook disappeared. Fortunately for me I remember the end results of the math in my little head
So if i use 08 pistons AND deck the jugs, will they hit?

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan
rumblebox is offline  
post #9 of 15 (permalink) Old 07-27-2015, 01:13 PM
Lifetime Premium
 
kevinx's Avatar
 
Join Date: Dec 2009
Location: At Southern Motorworx. High Springs Fl
Posts: 2,646
Default

Quote:
Originally Posted by rumblebox View Post
So if i use 08 pistons AND deck the jugs, will they hit?
I've got an 06 out there like that

I'm not an asshole...I just type that way
Check us out at Southern Motorworx on FaceBook
https://www.facebook.com/home.php
http://www.southernmotorworx.com/index.html
kevinx is offline  
post #10 of 15 (permalink) Old 07-27-2015, 01:19 PM Thread Starter
Senior Member
 
rumblebox's Avatar
 
Join Date: Dec 2013
Location: Victoria, TX
Posts: 290
Garage
Default

So with the jugs decked .030", which pistons stick above the deck .010", 07 or 08?

the gasket is .022"?

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan

Last edited by rumblebox; 07-27-2015 at 01:33 PM.
rumblebox is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Victory Forums - Victory Motorcycle 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 Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not 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