Starting the mod process - Honda CBR250R Forum : Honda CBR 250 Forums
User Tag List

Reply
 
LinkBack Thread Tools
post #1 of 113 Old 11-03-2012, 11:08 PM Thread Starter
Senior Member
 
BBRMotosports's Avatar
 
Join Date: Sep 2011
Location: Rhinelander WI
Posts: 1,105
Thanks: 67
Thanked 353 Times in 176 Posts
Starting the mod process

Well it's that time of year where the bike go's in storage in my case my basement. Well it's time to start modding this beotch internally. Now I DO NOT want to hear any B.S about why would you mod a 250 yada yada. A: This is my bike I can do whatever I want. B: it's my money I can spend it as I want, C: I do this stuff for a living so it's pretty much free. Anyways I have 2 goals here. 1 to make enough power to where I can change gearing so the bike is not screaming down the highway and not a slug in town. And 2 have enough compression to justify running Premium fuel as we have no ethenol in Premium up here in Northern WI. What am I going to do? I already had it dyno tuned last year so I have a base line. Going to deck the head to bump up compression, Run the head on a flow bench followed by some porting, advance the cam timing to compensate for the decked head, and also adding a different fuel controller where I can adjust ignition timing. And of course get it tuned and hopefully see some decent results. Here's the first pic of tonites start. I will be adding pics as I get time to work on my own bike. Any input is welcome.






Cleaned up the valves


And honed the cylinder. Look at that nice cross hatch

2011 CBR250R, Modded 84 honda spree, 2013 CBR500R 2014 Grom

https://www.facebook.com/centertrackperformance

Last edited by BBRMotosports; 11-14-2012 at 09:14 PM.
BBRMotosports is offline  
The Following 7 Users Say Thank You to BBRMotosports For This Useful Post:
Jme250RA (11-04-2012), Mikethebear (01-16-2013), RubenAlonzo (12-03-2012), SDM (11-04-2012), shisoshin (11-04-2012), SirFox (11-04-2012), Top (11-04-2012)
Sponsored Links
Advertisement
 
post #2 of 113 Old 11-04-2012, 12:07 AM
Senior Member
 
Magona250's Avatar
 
Join Date: Dec 2011
Location: Adelaide Hills
Posts: 207
Thanks: 11
Thanked 55 Times in 35 Posts
Surely a cam change is near top of the list. I'dd say the standard is pretty low lift, short duration to bump up the fuel economy.
Magona250 is offline  
post #3 of 113 Old 11-04-2012, 01:03 AM
SDM
Senior Member
 
SDM's Avatar
 
Join Date: Jun 2012
Location: Fairview Quezon City Philippines
Posts: 567
Thanks: 392
Thanked 183 Times in 115 Posts
Will be watching this thread closely good luck and have fun.

Dang dude your just wasting money on a little 250, why dont you buy a 2000cc and really live on the wild side

<------ I cant see WHY anybody would waste money on the 250 just a waste I tell ya

Just teasing you BBR,

June 2013 BOM winner
Custom Painted
Steel braided brake lines
CORBIN front and pillion seat
HID Projector, W/ orange demon & red, white angel
305cc Big bore kit, PCV + Auto tuner, Ohlins rear shock, Emulators, .95 springs, Sintered HH pads. S.S. header, 2 Bros slip on, integrated brake turn signals, -1/+2, flush mount turn signals, tail tidy, T-Rex sliders, and rear spools

Last edited by SDM; 11-04-2012 at 01:20 AM.
SDM is offline  
The Following User Says Thank You to SDM For This Useful Post:
ladywillfly (02-07-2013)
post #4 of 113 Old 11-04-2012, 04:19 AM
Senior Member
 
Join Date: Feb 2012
Location: coogee beach australia
Posts: 2,639
Thanks: 951
Thanked 1,238 Times in 749 Posts
as a kid we used to hot up lawnmowers..
there must be a gene for it...
shisoshin is online now  
The Following 3 Users Say Thank You to shisoshin For This Useful Post:
BBRMotosports (11-04-2012), Jme250RA (11-04-2012), SDM (11-04-2012)
post #5 of 113 Old 11-04-2012, 12:38 PM Thread Starter
Senior Member
 
BBRMotosports's Avatar
 
Join Date: Sep 2011
Location: Rhinelander WI
Posts: 1,105
Thanks: 67
Thanked 353 Times in 176 Posts
Just for that SDM i'm sending some anthrax in the box with you'r DFC hahahaha

2011 CBR250R, Modded 84 honda spree, 2013 CBR500R 2014 Grom

https://www.facebook.com/centertrackperformance
BBRMotosports is offline  
The Following User Says Thank You to BBRMotosports For This Useful Post:
SDM (11-04-2012)
post #6 of 113 Old 11-04-2012, 04:41 PM Thread Starter
Senior Member
 
BBRMotosports's Avatar
 
Join Date: Sep 2011
Location: Rhinelander WI
Posts: 1,105
Thanks: 67
Thanked 353 Times in 176 Posts
Allright guys, Had some time today to get it torn down as far as I need it to be. Now I need to pull the valves, clean everything up, Deck the head and press the cams out of the gears and change the cam timing.Also need to do the porting. Here's a few pics.







Honda even uses a moly coating on the OEM piston


2011 CBR250R, Modded 84 honda spree, 2013 CBR500R 2014 Grom

https://www.facebook.com/centertrackperformance

Last edited by BBRMotosports; 11-04-2012 at 04:48 PM.
BBRMotosports is offline  
The Following 2 Users Say Thank You to BBRMotosports For This Useful Post:
Gordo (11-04-2012), SDM (11-04-2012)
post #7 of 113 Old 11-04-2012, 06:15 PM
Senior Member
 
Join Date: Aug 2011
Location: Los Angeles,ca USA
Posts: 436
Thanks: 0
Thanked 41 Times in 36 Posts
SUWEEEEEEEEEEET can't wait to see how you bike runs after it back together I still have my DYNOJET/DFC 4 SALE sent PM
woolf is offline  
post #8 of 113 Old 11-04-2012, 06:28 PM Thread Starter
Senior Member
 
BBRMotosports's Avatar
 
Join Date: Sep 2011
Location: Rhinelander WI
Posts: 1,105
Thanks: 67
Thanked 353 Times in 176 Posts
I already had a dfc, just sold it to get a pcv

2011 CBR250R, Modded 84 honda spree, 2013 CBR500R 2014 Grom

https://www.facebook.com/centertrackperformance
BBRMotosports is offline  
post #9 of 113 Old 11-04-2012, 09:51 PM
SDM
Senior Member
 
SDM's Avatar
 
Join Date: Jun 2012
Location: Fairview Quezon City Philippines
Posts: 567
Thanks: 392
Thanked 183 Times in 115 Posts
Looks like you been busy! If it all works and you get good numbers you might get a 250 motor shipped to your house so you can do it again :P

Ohh and the Anthrax, that would be okay as if I know my mom like I know my Mom she will snoop in the box just to see whats inside then re tape it.....

Loving the BMW in the back!!!

June 2013 BOM winner
Custom Painted
Steel braided brake lines
CORBIN front and pillion seat
HID Projector, W/ orange demon & red, white angel
305cc Big bore kit, PCV + Auto tuner, Ohlins rear shock, Emulators, .95 springs, Sintered HH pads. S.S. header, 2 Bros slip on, integrated brake turn signals, -1/+2, flush mount turn signals, tail tidy, T-Rex sliders, and rear spools
SDM is offline  
post #10 of 113 Old 11-04-2012, 09:57 PM Thread Starter
Senior Member
 
BBRMotosports's Avatar
 
Join Date: Sep 2011
Location: Rhinelander WI
Posts: 1,105
Thanks: 67
Thanked 353 Times in 176 Posts
Lmao, i send a business card, dyno sheet and a few stickers along. And yeah you can ship your engine to the shop any time. And yes the s1000rr is bad a$$

2011 CBR250R, Modded 84 honda spree, 2013 CBR500R 2014 Grom

https://www.facebook.com/centertrackperformance
BBRMotosports is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda CBR250R Forum : Honda CBR 250 Forums 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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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