946 cc superjet ???

[mustang67]

Have any of you done this. They use a Yamaha 701cc motor, 750cc KAW rods, 951 see doo pistons. That gives you a 946cc to a 989cc

How much power do you think they will get out of this with a some small mods ( pipe and such )?

I am new to this so I will say sorry right now. I am a car builder. I just got hooked on this sport. I only got the race car out like 4 times ha ha.

It has a 557 that started out as a 429. So I am not new to changing CID or CC in this topic.

Thanks for any help you may have!

 

[jetski9010]

Who sells these kits and how much do they go for?

 

[yamanube]

http://adaracing.com/parts/personal-watercraft/billet-cylinders

 

[waterfreak]

that is an ADA big bore kit . From what I have heard, it require a lot of porting work to make it work and they do not offer the power valve option

 

[mustang67]

yep it is ada. now power vavles as well. How much do you gain from a power valve. I know in my race car we take the power valve out of the carb!

 

[waterfreak]

yep it is ada. now power vavles as well. How much do you gain from a power valve. I know in my race car we take the power valve out of the carb!

the powervalves are in the exhaust port and gives more usefull power thoughout the powerband

 

[SUPERJET-113]

Its like a on and off instant exhaust port job! BRAP!

 

[the only couch rider]

call chuckie @ team scream or steve @ WCF.... they both can help you put some braaap in your pipe and smoke it