Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: Using shiftlight/N2o feature to autoshift


Member

Status: Offline
Posts: 6
Date:
Using shiftlight/N2o feature to autoshift


Has anyone tried to use the shiftlight feature to control an external kill box?
I have emailed back and forth with Greg Smith about a harness, he doesnt make one that particulary works that way.
I figure if it will turn a light on at a set rpm, why couldnt it trigger a kill box. Granted it would have to have a relay..any info would be greatly appreciated.

__________________
Alchemy  Racing
A-State Boys sm/c


Guru

Status: Offline
Posts: 1247
Date:

Should work. here really is no N2O feature in Gen1 that would work, not sure what you are referring to there.

May have to pay attention to see if it is double shifting, but other than that it should work fine.

__________________


Member

Status: Offline
Posts: 6
Date:

In the advanced settings, top left corner...say's shiftlight/N2o control  rpm on & off.
In the Petriks software

__________________
Alchemy  Racing
A-State Boys sm/c


Member

Status: Offline
Posts: 6
Date:

It can stay on for 100 rpm, the killbox doesnt care..its only gonna kill for the preset time. I figured id set it for on at 11200 and off for 11300.
Does anybody know what number relay I should use? Greg said use a 1n4007 diode
in line so it doesnt backfeed the circuit, but does anyone know what the voltage output on the flapper circuit is?

Im no wiring expert, nor do I know any code in these ecm..I just know what I want it to do.lol

__________________
Alchemy  Racing
A-State Boys sm/c


Veteran Member

Status: Offline
Posts: 73
Date:

There is no output voltage  on the flapper circuit it pulls the circuit down to ground in other words it grounds the circuit.

In fact none of the outputs injectors / coils or relays put out a voltage thy are all grounding.

__________________


Member

Status: Offline
Posts: 6
Date:

Makes sense... what kind of relay would I need to use, and how would I wire it up?
basically I would just use the flapper circuit to ground the relay at whatever rpm I set..and in doing so send a 12v signal from the other side of the relay to the trigger wire on the box..correct? And also utilize the diode as to not send current the wrong way??

__________________
Alchemy  Racing
A-State Boys sm/c


Member

Status: Offline
Posts: 6
Date:

Greg sent me an email with detailed instructions on how to wire it, so its up to me now...Ill post results once I know its working. Maybe it will help others that already have a killbox and want to autoshift without buying a $300 autobox.

BTW, I love this site...Ive learned alot from just a few visits. Thanks guys!

__________________
Alchemy  Racing
A-State Boys sm/c


Guru

Status: Offline
Posts: 953
Date:

the potential issue i can see if there is no filtering that keeps the output from shutting off as soon as RPM drops below threshold is not getting solenoid energized long enough to complete the shift. Again this is all just thinking as no one has really tested it.

But on my shift lights where i do autoshift output there is some filtering that keeps the light on a little bit longer than what you would expect, which helps get the solenoid enough time to complete the shift.

__________________


Member

Status: Offline
Posts: 6
Date:

Ill try it..If it doesnt work Ill just go with the shiftlight setup. Its still way cheaper than a auto box.
Is there something that can be put in line with the relay that could aid in that? I would hope that beings how it functions off ground, and with use of the relay it would signal long enough. I run 140psi in the system, and I have whats basically a promod tranny (minus billet gears) that falls into gear like butter..so it shouldnt take much.




-- Edited by Alchemy Racing on Saturday 8th of January 2011 09:47:43 PM

__________________
Alchemy  Racing
A-State Boys sm/c


Member

Status: Offline
Posts: 12
Date:

Not sure if this is possible, but can you just set the software to turn off at 200 rpms lower than where you turned it on? Say turn on flapper valve(shifter) at 11000 and turn it off at 10800. wouldnt that force it to make sure it completes the shift?

__________________


Member

Status: Offline
Posts: 6
Date:

Just an FYI we have bench tested this theorey last night, works like a top. Used two relays, a resistor, a diode, and some head scratching. Can shift off the horn button or automatic through the shiftlight function. Have yet to try under a load (wheel to the ground) as there is still snow on the ground here.



__________________


Member

Status: Offline
Posts: 6
Date:

Actually to clarify we set up the shift light feature to trigger the kill time in the ecu so everything is done through the ecu, not an external kill box.



__________________


Guru

Status: Offline
Posts: 1233
Date:

cool use of the shiftlight feature :) thanks for sharing your results!



__________________

site_logo_small.png

www.WoolichRacing.comTune your bike to the Limit with our Advanced ECU Flashing Products

Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us


Create your own FREE Forum
Report Abuse
Powered by ActiveBoard