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Vixion Block Or Jvt 57mm?

yalomed

Member
Sir I think it's ok even your on stock head.. unless your engine compression is high, you can change to bv head.. this is a recommendation from a mechanic that I know.. Because a friend of mine uses already a 63mm bore but he didn't advices him to change into bv head since his engine compression is not that high..
if you're lacking in compression ratio, you can always go stroke up or use dome piston... there are ways to increase the cr.

Does a 62mm bore can break our conrod?
not a titanium conrod it can't, hehe...
104 kph @ 3rd gear not in full throttle no more guts to use 4th gear thats vixion kit + tweaks...
vixion kits when properly set together matches that of the engine of an r15! all that's lacking is the 6 speed transmission.
 

jangbest

Moderator
104 kph @ 3rd gear not in full throttle no more guts to use 4th gear thats vixion kit + tweaks...
I think you need to bore up your chest to compensate the knocking inside your chest hehehe just kidding ;)
The full potential of the power of vixion bore up is depend on your set up and also on your mechanic tallent

and your right with some engine tweaks ...
 

Eldridge

New Member
ill go for JVT 59mm. ang vixion kc lubog ang piston e. mas mganda tlaga jvt..ska subok ko na sa performace nya.
 

Ericson

Super Veteran
104 kph @ 3rd gear not in full throttle no more guts to use 4th gear thats vixion kit + tweaks...

this is what i wanna see in my gauge when i am in my race mode style of driving.. haha, but unfortunately my mc is stock plus bigger tires and without changing my sprocket combi damn it feels so awkward.. hihihi
 

boytiempoh

Member
for me I'll go with the vixion kit rather than the jvt in terms of reliability.
In terms of performance,It's really up to you and what parts you will match with the bore kit.
 

recta igbaras

New Member
in my case, at 50k mileage my oem cylinder chrome bore was starting to wear. maybe aftermarket brand are more easily to wear.
 

NextLevelSaibot

New Member
I'd prefer the Vixion kit, although you can't really go wrong if you choose the JVT bore.

The reason I prefer the Vixion kit is because it has no cylinder liner. It is entirely made of Diasil - http://www.rose-hulman.edu/~stienstr/me 328/Al_Si_hw3.pdf

No cylinder liner means the heat transfer properties of the Diasil (Vixion in this case) bore is way better than with conventional cylinders with steel liners, since the Diasil cylinder is made entirely of Aluminum-Silicon alloy. Please note that Chrome or Nikasil cylinders are made by hard coating the Chrome or Nikasil into the conventional steel liner. The heat transfer properties of the Diasil cylinder can be up to 60% better than conventional steel or plated cylinders - http://bikeadvice.in/diasil-die-cast-aluminum-silicon-cylinder-normal-cylinders/

The Diasil cylinder is proprietary to Yamaha, meaning they invented and perfected the process. This was first used on their prototype MotoGP bikes, then on their R series sport bikes, and later on smaller displacement bikes when they felt they can mass produce it and lower their overall production cost.

If you're bike is superstock or uses the Vixion kit, and you feel like it's losing power because of lower compression or excessive blow-by, just change the piston rings and it should run better again. This is only if you or your mechanic know that there's nothing else wrong with your bike.

My 2 cents...thanks!
 
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