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?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • 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

05 yz 250 worth 2500? by 2StrokeCruiser


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

YZ250 Pro Moto BIllet Kick Stand Review by Mathew530


Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • Hot  27 replies
Forums
Photo

Fouling plugs yz250 by Dyl_39


Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • Hot  27 replies
Forums
Photo

Dirt bike to Atv by 2StrokeCruiser


ATV/UTV   General ATV/UTV Forums   What ATV/UTV should I buy?
  • 0 replies
Forums
Photo

2013 yz250 advice by 2StrokeCruiser


Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • 2 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.

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.