Hpi cdi unit


2 replies to this topic
  • raden

Posted May 19, 2011 - 12:09 AM

#1

Has any one used one of these units with the 2 programmable curves or any other brand ones, an what was the result,any worthy gains in performance?

  • arnego2

Posted May 19, 2011 - 02:45 AM

#2

Hard to tell after not riding the bike for about 3 weeks. That is the time the Vortex needed to find its way to me. Overall I like it I have 10 different maps to choose from although I rarely switch between them.

You have to jet richer when going with a more agressive curve.

  • BRM

Posted May 19, 2011 - 03:06 PM

#3

I have a HPI on my 144 that has been mapped specifically to match the porting.
It gave the already good performing engine a real shot of addrenilin. It just made everything livelier if you know what I mean.

Stimps has one on his YZ 250, you can check out the performance on his posted dyno charts in the stickys.





Related Content

Forums
Photo

85 or 150? by drzrider04


Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 8 replies
Forums
Photo

2001 YZ250 resto project by yamerhaaa304


Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • Hot  24 replies
Reviews

Yamaha YZ250 2013 by MXRider72


Yamaha YZ250 2013
  • * * * * *
  • 4 reviews
  • Last review by phantom451
  • On August 10, 2014
Forums
Photo

What should I get for my next bike? by JHodel20


Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • 20 replies
Forums
Photo

2014 yz250 Gearbox Problems by Hoffy77


Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • 9 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

RegisterSign InClose
If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.