TRX250r.org

Author Topic: build a high performance CDI  (Read 3928 times)

Offline rsss396

Anyone looking for a great builder I highly recommend the following.
For CP products dealers I would recommend:
Arlan at LED(site sponsor), Pete Schemberger at Hybrid Engineering, Mat Shearer at Shearer Custom Pipes, Dennis Packard at Packard Racing, and Nate McCoy of McCoys Peformance.

Other great builders I also would recommend: Neil Prichard, Jerry Hall, Bubba Ramsey and James Dodge.

Offline nyemi

build a high performance CDI
« Reply #1 on: April 22, 2014, 11:05:59 AM »
I welcome ignition developer colleagues.
Take a look. The high-power DC-CDI ignition.
Circuit diagram:

The code is working:

Features:
High efficiency dc-dc converter (~95%!).
High spark energy.(10000rpm=~80mJ,)
Low rpm MSD Ignition.
Rev limiter (high-low rpm)
Ignition timing adjustment (/rpm,4  curve table.)
The firmware, low-time algorithm= 25uS! Therefore, no operator program.(8MHz internal oscillator, Assembly source.)
Option: Plasma spark preparation!:greedy_dollars:(Caution: Iridium spark plug, 0Ω internal-external resistor!!)
There is no extra power consumption! Stored in the ignition coil, the use of residual energy!

Look at my videos:https://www.youtube.com/user/ignitionyemi/videos
Thank you for your attention.

The development continues.


Regards nyemi.





   I have to be Hungarian.
It is difficult for me in English.
Thank you for your patience.
I was looking forward to their questions.:coffee_pc:
« Last Edit: April 22, 2014, 11:23:18 AM by nyemi »

Offline havinnoj

build a high performance CDI
« Reply #2 on: April 22, 2014, 11:12:25 AM »
[MENTION=794]nyemi[/MENTION] - This is over my head but welcome to the forum!

Offline Langbolt

build a high performance CDI
« Reply #3 on: April 22, 2014, 04:14:42 PM »
Now if only we could dissassemble an OEM C.D.I. and let NYEMI know what we're dealing with....Or find a Schematic for the 250R CDI. I've tried to get the urethane out of a CDI and it just won't break down with Acetone. :(

Welcome to the Site - NYEMI :) Hopefully you can shed some light our dilemma of trying to find a GOOD replacement for our Discontinued CDI.

Offline Langbolt

build a high performance CDI
« Reply #4 on: April 22, 2014, 04:30:19 PM »
I did find this.....if it helps....it's NOT a 250R....but it is a 2-stroke CDI


Offline rsss396

build a high performance CDI
« Reply #5 on: April 23, 2014, 09:55:24 AM »
Welcome and please keep us posted on your progress with your CDI

Zeeltronics has there CDI setup to work without a 12v battery which is a big plus for many people, are you able to run your CDI from a voltage regulator/capacitor setup

http://trx250r.org/threads/3261-Zeeltronics-programmable-CDI?p=32186#post32186
Anyone looking for a great builder I highly recommend the following.
For CP products dealers I would recommend:
Arlan at LED(site sponsor), Pete Schemberger at Hybrid Engineering, Mat Shearer at Shearer Custom Pipes, Dennis Packard at Packard Racing, and Nate McCoy of McCoys Peformance.

Other great builders I also would recommend: Neil Prichard, Jerry Hall, Bubba Ramsey and James Dodge.

 

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