Yamaha Discussions about Yamaha ATVs.

Boring .060 over with wiseco piston?

Thread Tools
 
Search this Thread
 
  #1  
Old 07-09-2000 | 12:28 PM
Daredevil1's Avatar
Thread Starter
|
Pro Rider
Joined: Mar 2000
Posts: 284
Likes: 0
Default

Does putting in a wiseco piston and boring it .060 over make a real difference in power for the blaster? If so, how much would it cost total to have it bored out and to buy the piston? One last thing, what changes to my carb would i have to make if i did this? I know you cant just rejet with a mod like this.
 
  #2  
Old 07-09-2000 | 04:08 PM
Tree Farmer's Avatar
Pro Rider
Joined: Jul 1999
Posts: 1,667
Likes: 1
Default

Daredevil1, I think the overbore takes care of cylinder cleanup; while marginal displacment increase results, hopup is not its primary purpose. The piston design (compression ratio, port timing geometry, etc.) may affect performance, but I think the primary purpose of the overbore is to provide good ring-seating surface on the cylinder wall.

Tree Farmer
 
  #3  
Old 07-09-2000 | 05:17 PM
94DGblaster's Avatar
Pro Rider
Joined: Apr 2000
Posts: 1,380
Likes: 0
Default

my blaster was bored out .060 over. That is pushing close to 205cc. I haven't rode a stock one enough to compare. But i know i had to boost my power a little.

I raced a RCR/HPD/EPI modded trailblazer, and i ran over him with my Blaster! When i had my RCR Trailblazer I could beat piped blasters no problem.
 
  #4  
Old 07-10-2000 | 01:22 PM
409LongRod's Avatar
Trailblazer
Joined: Apr 2000
Posts: 98
Likes: 0
Default

Boring 60 over is going to do very little for an increase in power. one has to remeber the only way you get more power is by being able to burn more fuel, and i don't think 60 over is going to be more than a size or two bigger on the main at the most. Save all of those bores for maintenance, if you are looking for more power get some porting done or go with a real big bore.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
exmotocrosser
Polaris
10
09-13-2019 06:12 AM
2many2ride
Honda
7
09-27-2015 04:35 AM
Quadzilla Heritage
Classifieds, Garage Sale & Swap Shop
0
09-25-2015 01:39 PM
XxS0ccerstarxX
Polaris
1
09-24-2015 05:38 PM
XxS0ccerstarxX
Honda
4
09-24-2015 02:02 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Boring .060 over with wiseco piston?



All times are GMT -5. The time now is 07:03 AM.