i purchased a cdi for my son's scambler 50, for wrh racing. i'm waiting for it to come in.
the quad does 15 mph now,
how much fater should it get with new cdi

thank
tutiii

 

There is alot of difference between cdi manufactures. The actual top speed will vary due to that. If you are looking for "top end speed", why not install a new rear gear? I do know HPI makes a good cdi box for the Pred 50.

 

I can't comment on how much more speed you'll get, but I do know that replacing the CDI is a must have for that quad if you want to ever get anything out of it. Our '02 Scrambler 50 would not even get into the power range of a good race pipe without swapping it. The stock CDI has a rev limiter that you cannot override.

There's some videos on our web site, APB-Racing.com, that should show you what you can get out of one of these.

Bryce

 

E MAIL ME I CAN HELP YOU NEED YOUR # 2003 NAT #1 ON THE SAME 50

 

thanks for the help
the front sprocket is a 13 and the rear is 33

what should i change them to, and where do you get them

thanks again
tutiii

 

Need to know the year 2003 older you can buy a stk 90cc for the front 19 & rear you can call sprocket specialists 800-533-0802 & DO 30,28,26, E-MAIL ME SO I CAN TALK TO YOU .

 

DZRACING,
thankks for your help, i sent a message from the thread.
don't know your email. i put mine in the message i sent you


it is a 2003 polaris scrambler 50.

thanks
tutiii

 

Sorry I THOUGHT THE E-MAIL WAS ON MY PROFILE