dirt bike cdi box's?



4 replies to this topic
  • Blackyz450

Posted June 04, 2014 - 05:15 AM

#1

Those did box's like black box and big gun and other cdi boxes s do they work. I see they say up to 5 HP gains but that's a lot..for a dirt bike

  • Blackyz450

Posted June 04, 2014 - 05:16 AM

#2

Those did box's like black box and big gun and other cdi boxes s do they work. I see they say up to 5 HP gains but that's a lot..for a dirt bike

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

Posted June 04, 2014 - 05:27 AM

#3

I wouldn't bother

  • zotis777

Posted June 04, 2014 - 05:35 AM

#4

With the right miss they can do some good. But like eBay ecus for cars pouring one in a stock motor doesn't do much

  • grayracer513

Posted June 04, 2014 - 06:40 AM

#5

The 5 hp gain is pretty unrealistic if you're thinking of 5 at peak power.  It's very unlikely that altering the timing curve at 8500/full throttle would do anything of the sort, and it certainly wouldn't happen on any YZ450, but it could produce that much gain in the mid range on one or two models.  The '05, '08 and '09 come to mind.  The real advantage to the more sophisticated ones is that they can be tweaked to alter the power output according to track situations or your particular needs. 

 

The cheaper ones with only a single fixed program are not likely to help most YZ's very much, really.







Related Content

Forums
Photo

First Hare scramble tips by dhend8


Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 replies
Forums
Photo

YZ450F 03 Sparks driving me crazy by SirAttard


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies
Forums
Photo

yz250x vs 450 4t comparisons (preferably desert riding) needed by JakeNorthrupYZ450F


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

Megabomb Fitment by 288yz450


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
Forums
Photo

Snake pit oct 30th by The Anvil


Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 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.