Std Bore or 840??? - Kawasaki Teryx Forums: Kawasaki UTV Teryx Forum
Kawasaki Teryx Performance Discussions Kawasaki Teryx performance discussions.
Engine mods, CDI boxes, exhausts, etc.

User Tag List

Closed Thread
 
LinkBack Thread Tools Display Modes
post #1 of 32 (permalink) Old 06-24-2010, 02:10 PM Thread Starter
Member
 
Join Date: Jun 2009
Location: Indiana
Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Std Bore or 840???

Getting very close to pulling the engine out of my 08 and going to bump up the power, but not sure which way to go. I am a leaning towards a std bore kit from fst. I am running carbs with muzzy pro exhaust and cdi and vf john's clutch set up. i just hear too many complaints from the 840 guys on here. I guess is what i am asking is will i be disapointed with the std bore kit vs the 840? I also want what everyone else wants; Reliable power, no overheating, and dont want to work on it all the time.
Is the std bore kit enough power to really feel it in the seat?

Thanks for the input
Rigidone is offline  
Sponsored Links
Advertisement
 
post #2 of 32 (permalink) Old 06-24-2010, 03:11 PM
Member
 
twincylinder's Avatar
 
Join Date: Aug 2008
Location: alberta canada
Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
The FST standerd bore kits rocks !!! talk to mickey he will set you up. I have one I have 180 hrs on it and it rips. 69 mph at 9200 with 26" tires and about 76 mph with 28" mudlites. you will not be disapointed at all. Put some tpi valves in the air box and a k&n filter or whatever filter you want and let her buck.

Chris

2008 teryx FST S/B kit k&n filter muzzys cdi dalton pwr rad doors seats a/f w/t tach itp rims 28 mudlites warn front bumper 4000 lb NOS and so on.
twincylinder is offline  
post #3 of 32 (permalink) Old 06-24-2010, 03:20 PM
Senior Member
 
poflo's Avatar
 
Join Date: Apr 2008
Posts: 199
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Quote:
Originally Posted by Rigidone View Post
Getting very close to pulling the engine out of my 08 and going to bump up the power, but not sure which way to go. I am a leaning towards a std bore kit from fst. I am running carbs with muzzy pro exhaust and cdi and vf john's clutch set up. i just hear too many complaints from the 840 guys on here. I guess is what i am asking is will i be disapointed with the std bore kit vs the 840? I also want what everyone else wants; Reliable power, no overheating, and dont want to work on it all the time.
Is the std bore kit enough power to really feel it in the seat?

Thanks for the input
My bone stocker overheated....I only run in the sand and load the motor pretty hard,so,naturally,my 840 overheated,but not any more....I can cool it down to 175 degrees with 95 degree ambient,.....so,how much power do you want.......I havn't had a stock bore get even close
poflo is offline  
 
post #4 of 32 (permalink) Old 06-24-2010, 03:57 PM
Senior Member
 
bigdaddy's Avatar
 
Join Date: Sep 2009
Location: Farmerville Louisianna
Posts: 1,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Boy I have heard this question many times and even was the one asking it one time, but I was like you at onetime leaning towards standard bore you get alot of different opinions but after talking to several different builders I decided on an AMR840 which I am still in the process of right now along with many other mods but I just can't get into it right now with 103 temps in Louisianna but the answer I kept getting is that the standard bore was awsome and would be amazed at the power in the seat as long as I didn't ride an 840 so I think you might have to make your own mind up, I even heard some saying that a standard bore would out run a big bore because it would turn more rpm only problem is I could never find anybody that could prove that they had out run a big bore except on a dyno and a piece of paper so you see which way I went but it seems that most everybody is happy with the standard bore or the big bore and also happy with either builders kit but I just have heard very little problem out of either and as for as the temp issue I think that it is like someone else said the heating issue has been more of a condition more than the size of the engine wether it be stock or big bore and in saying all of this I really have not helped you decision at all, oh well just go for it I bet you will be happy either way.

Big Daddy
bigdaddy is offline  
post #5 of 32 (permalink) Old 06-24-2010, 05:00 PM
Senior Member
 
Join Date: Jun 2008
Posts: 604
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
i am happy with my 840 and i have had not one overheating problem yet....i have 650 miles on the 840..i did have some tuning issues though i beleive i have them squared away for now.i say go for the 840 its only 500 more.you wont be disappointed.
whitey is offline  
post #6 of 32 (permalink) Old 06-24-2010, 06:36 PM
Senior Member
 
KYWILDCATS74's Avatar
 
Join Date: Mar 2010
Posts: 375
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
You will overheat a standard bore too. My stock 08 would overheat in 90deg temps. I have put in an oversized waterpump impellor and engine ice coolant and now have no problems keeping my engine temp down. I would value poflo's opinion.. I think he might have the oldest 840 around.

Merlin Motorsports custom Teryx
KYWILDCATS74 is offline  
post #7 of 32 (permalink) Old 06-24-2010, 06:38 PM Thread Starter
Member
 
Join Date: Jun 2009
Location: Indiana
Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
thanks for the info. I do have tpi valves from hw, but need a good filter.
Rigidone is offline  
post #8 of 32 (permalink) Old 06-25-2010, 06:51 AM
Senior Member
 
Join Date: May 2008
Posts: 3,999
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
 
Quote:
Originally Posted by Rigidone View Post
thanks for the info. I do have tpi valves from hw, but need a good filter.
We have good filters too!! LOL

As far as the main question, I won't even try and reply I will get blasted!! LOL



Hunterworks is offline  
post #9 of 32 (permalink) Old 06-25-2010, 07:23 AM
Senior Member
 
Join Date: Apr 2008
Posts: 255
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
840 ALL THE WAY!! I have no heating issues at all, I run evans coolant and run a switch on the fan so its on all the time. Ive ridden with stockers that overheated and mine didnt!!

08' Teryx LE, FST 840, Muzzys, VDI, Dalton, VFJ Roller, Thunderhawk Performance Race Cage, Bumpers, Door Bars and Bracing, Beard TSX Seats, 5pt. Crow Harness, 12" ITP Type 7 Beadlocks, GBC 8 ply Dirt Commanders, Pro Armor Skids, Team Green Plastic

08' Teryx, Maier Orange Plastic, Thuderhawk Performance 4 Seat Cage, Bumpers, Door Bars and Bracing, Beard TSX Seats, 4 pt. Harness, 14" Chrome Doughas Diablos w/GBC Grim Reapers, VDI, Dalton
xchamp is offline  
post #10 of 32 (permalink) Old 06-25-2010, 08:33 AM
Senior Member
 
Join Date: Dec 2009
Posts: 189
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
I think you should go by what kind of riding u do. The way i look at it is, if u ride dunes and open area's get the 840, If u ride tight and small area where u can't get top speeds get the std bore. I'm still on stock setup but I'm debating on what to get also. I like racing around in trails so I;m thinking of getting the std bore.

08 teryx--mph on stock guage
bone stock--50mph
Dynatec CDI, aftermarket exhaust tip--56mph
dyna coils, DASA od cover--58mph
no exhaust tip, deleted air box drain plug, removed windshield and roof--61mph
Carolina Mud Dogs cage--??
Reis Racing is offline  
Sponsored Links
Advertisement
 
Closed Thread

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Teryx Forums: Kawasaki UTV Teryx 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
Weller 750 std bore kit or 820 bore kit kawaman Kawasaki Teryx Performance Discussions 30 12-16-2009 07:26 AM
fst std bore vs fst 840 mark5193 Kawasaki Teryx Performance Discussions 76 12-15-2009 06:53 PM
750 or 840 bore kit kawaman Kawasaki Teryx Performance Discussions 15 08-18-2009 11:12 PM
Std Bore Kit? Monster_Teryx Member Introductions 7 06-21-2009 11:13 AM

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
 


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89