stock raptor 660 hp? - Yamaha Raptor Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 20 (permalink) Old 01-14-2011, 12:50 AM Thread Starter
Member
 
baha's Avatar
 
Join Date: Sep 2010
Location: Sofia, BG
Posts: 33
Send a message via Skype™ to baha
stock raptor 660 hp?

I was wondering, how much hp (not kw) has a stock raptor 660? There are several suggestions that vary between 33 & 47. And can anyone calculate the hp of mine- 727 big bored (105mm piston, sport hotcam) jet kit carburetors, fmf power bomb exhaust generation, new cdi, k&n air filter, non covered air box?

'04 RaptOr 660 turned into =>
JE Pistons 727cc right!
baha is offline  
Sponsored Links
Advertisement
 
post #2 of 20 (permalink) Old 01-14-2011, 02:01 AM
Senior Member
 
Nick_R_23's Avatar
 
Join Date: Mar 2009
Location: Willow, Alaska
Posts: 284
Send a message via MSN to Nick_R_23
The only way to know for sure is to run it on a dyno, otherwise its just speculation.

1986 ATC250R : 1995 BMW 318i : 1988 Silverado 4x4 : 2003 Raptor 660LE : 1967 Camaro : 1950 Chevy 3100 pickup

Horsepower sells engines, torque wins races!

Nick_R_23 is offline  
post #3 of 20 (permalink) Old 01-14-2011, 06:37 AM
I am unique

 
willykiller's Avatar
 
Join Date: Jun 2007
Location: Ottawa, Ontario
Posts: 22,309
Quote:
Originally Posted by baha View Post
I was wondering, how much hp (not kw) has a stock raptor 660? There are several suggestions that vary between 33 & 47. And can anyone calculate the hp of mine- 727 big bored (105mm piston, sport hotcam) jet kit carburetors, fmf power bomb exhaust generation, new cdi, k&n air filter, non covered air box?
Stock 660...........32 to 34hp................
727...................??


686 three plugger with HV porting, 39 FCRS, Curtis Sparks exhaust, Dyna FS CDI
willykiller is offline  
post #4 of 20 (permalink) Old 01-14-2011, 10:14 AM Thread Starter
Member
 
baha's Avatar
 
Join Date: Sep 2010
Location: Sofia, BG
Posts: 33
Send a message via Skype™ to baha
Quote:
Originally Posted by willykiller View Post
Stock 660...........32 to 34hp................
727...................??
Are you sure that 32 to 34 are hp, becouse I tought that is kw. It seems pretty low to me, knowing that the 400 models are about 40- 45 hp... I think it`s near 50 hp, but not sure. And my 727, about 60? I know about the dyno, but here its almost impossible to get it checked, we have only 3 dynos in my region and it`s not cheap.

'04 RaptOr 660 turned into =>
JE Pistons 727cc right!
baha is offline  
post #5 of 20 (permalink) Old 01-14-2011, 10:24 AM
Moderator
 
Mad Dog's Avatar
 
Join Date: May 2005
Posts: 16,781
Around 33-35 rear wheel hp, as Willy said.

Mike

Mad Dog is offline  
post #6 of 20 (permalink) Old 01-14-2011, 06:24 PM
I am unique

 
willykiller's Avatar
 
Join Date: Jun 2007
Location: Ottawa, Ontario
Posts: 22,309
Quote:
Originally Posted by baha View Post
Are you sure that 32 to 34 are hp, becouse I tought that is kw. It seems pretty low to me, knowing that the 400 models are about 40- 45 hp... I think it`s near 50 hp, but not sure. And my 727, about 60? I know about the dyno, but here its almost impossible to get it checked, we have only 3 dynos in my region and it`s not cheap.
I am very sure, like positive, and you cant çompare the 400 series engines with the 660 based engine, they dont compare...........
They are lighter, rev much higher and much faster then the 660......


686 three plugger with HV porting, 39 FCRS, Curtis Sparks exhaust, Dyna FS CDI
willykiller is offline  
post #7 of 20 (permalink) Old 01-14-2011, 09:25 PM Thread Starter
Member
 
baha's Avatar
 
Join Date: Sep 2010
Location: Sofia, BG
Posts: 33
Send a message via Skype™ to baha
You`r right, but still 35 hp on stock 660 seems low to me. A hope my 727 is at least 50 hp now. And what about raptor 700?

'04 RaptOr 660 turned into =>
JE Pistons 727cc right!
baha is offline  
post #8 of 20 (permalink) Old 01-14-2011, 09:34 PM
I am unique

 
willykiller's Avatar
 
Join Date: Jun 2007
Location: Ottawa, Ontario
Posts: 22,309
Quote:
Originally Posted by baha View Post
You`r right, but still 35 hp on stock 660 seems low to me. A hope my 727 is at least 50 hp now. And what about raptor 700?
It depends on how you build your 727, I am building one presently and am looking for some 70 hp.........


686 three plugger with HV porting, 39 FCRS, Curtis Sparks exhaust, Dyna FS CDI
willykiller is offline  
post #9 of 20 (permalink) Old 01-14-2011, 10:44 PM Thread Starter
Member
 
baha's Avatar
 
Join Date: Sep 2010
Location: Sofia, BG
Posts: 33
Send a message via Skype™ to baha
Well, I can tell that the compression is around 13:1 and if I fully rev it while I'm on 1st and 2nd gear, I'll fall down. As far as I enter 3rd i can push the throttle till the end and still the front wheels are in the air, the same hight as your left wheel in your pic.

'04 RaptOr 660 turned into =>
JE Pistons 727cc right!
baha is offline  
post #10 of 20 (permalink) Old 01-14-2011, 10:52 PM
I am unique

 
willykiller's Avatar
 
Join Date: Jun 2007
Location: Ottawa, Ontario
Posts: 22,309
The picture in my signature is of my Raptor in oval track racing, in that pic, it is coming out of the corner in 5th gear at 60mph................


686 three plugger with HV porting, 39 FCRS, Curtis Sparks exhaust, Dyna FS CDI
willykiller 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:

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
Display Modes
Linear Mode Linear Mode



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
Inactive Reminders By Mished.co.uk and FTP-Anime.com