BansheeTeam Posted August 22, 2012 Report Share Posted August 22, 2012 Alright so this is going to be the first time changing my pistons I need something that provides power yet is reliable. My bike is an 06 it has Toomey T5's, Pod K&N's with outerwears, V-force reeds 3, +4 timing, and Jetted with moose racing dynojets 300,30,3rd grove. Thats pretty much it on performance a couple of accessories decal est. So the bike still runs great. I think it hit almost 90 mph last time i checked with the trail tech vapor 15/41 gearing. But soon I'm guessing I'll need to replace the pistons cause I wanna go for like a package: Coolhead with 21 cc domes to run with pump gas thats 95 octane in my country for premium. With like a .50 bored Wiseco piston or something strong and does not wear our fast cause I heard Pro-X is also good I dono i'll leave it up to you guys. I drive it a lot in trails, streets, sand and the wether over here is usually hot so yeah thanks guys. Quote Link to comment Share on other sites More sharing options...
ClayAiken Posted August 22, 2012 Report Share Posted August 22, 2012 Wiseco... Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted August 22, 2012 Report Share Posted August 22, 2012 Why .50?? Boring to the biggest size won't get you noticeable power gains. So just go up .10 or what ever you have to. No sense in wasting bores. Quote Link to comment Share on other sites More sharing options...
shanYE west Posted August 22, 2012 Report Share Posted August 22, 2012 Only bore the cylinders if there is damage that needs to be cleaned.. if your looking to freshen up the topend and you still have factory pistons.. then I would use Pro-X pistons. Wiseco pistons would need the bore properly setup to run them. IMO... Hone and a set of Pro-X Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted August 23, 2012 Report Share Posted August 23, 2012 check your compression and see if you even need em first Quote Link to comment Share on other sites More sharing options...
BansheeTeam Posted August 23, 2012 Author Report Share Posted August 23, 2012 Why .50?? Boring to the biggest size won't get you noticeable power gains. So just go up .10 or what ever you have to. No sense in wasting bores. I thought the bigger you went the more power. So from .10 to .100 whats gonna give me most power gains yet maintaining health and I can ride ride and ride more without worrying about piston wearing out. I'm looking at Wiseco, Pro-X, and WSM obviously everyone are saying go for Wiseco's but I like to double check. How about .40 to have a 1mm bore or .20 and have a 0.5mm bore which I dono if it'll make a big difference. How much HP gain are we talking about with a new top end? with/without the coolhead with 21cc domes Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted August 23, 2012 Report Share Posted August 23, 2012 Go 10 over if your compression is low. Going bigger on the bore isn't gonna give you enough power to be worth the wasted bores. Quote Link to comment Share on other sites More sharing options...
BansheeTeam Posted August 23, 2012 Author Report Share Posted August 23, 2012 Go 10 over if your compression is low. Going bigger on the bore isn't gonna give you enough power to be worth the wasted bores. So I've done some research and understood this bore thing yeah then I guess I'll be getting like .10 or .20 What company though? How much gains are we talking about with/without coolhead with 21cc domes. If I get the .10 or .20 will the pistons just fit in or do they like have to do some cuts and mods cause there aren't many good places over here aside from Yamaha and this other good banshee guy. Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted August 23, 2012 Report Share Posted August 23, 2012 What SHOULD be done to get it bored.......it should be taken to a machine shop specializing in bore/honing of cyinders. There they will use a bore mic and measure the size of the cylinder walls......from there they will make the call on how far they should have to bore it over to achieve the smooth straight gore they need. They will then order in the pistons.......and when the pistons arrive they will then measure the pistons and THEN bore the cylinders to each pistons exact size requirements. What fouledout is talking about is the difference between cast and forged pistons.......each type (cast/forged) requires different boring tolerances when machined...... Quote Link to comment Share on other sites More sharing options...
mike0chek Posted August 23, 2012 Report Share Posted August 23, 2012 Go 10 over if your compression is low. Going bigger on the bore isn't gonna give you enough power to be worth the wasted bores. x2 Quote Link to comment Share on other sites More sharing options...
BansheeTeam Posted October 21, 2012 Author Report Share Posted October 21, 2012 Made my mind Wiesco pro lite .10 over (64.25mm) their forged pistons right? Quote Link to comment Share on other sites More sharing options...
Nightmare Posted October 21, 2012 Report Share Posted October 21, 2012 Yes Sent from my SGH-T679 using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
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