Anyone use a lock up switch for your converter?

[12secondv6]

I tried a search under 'lock up swtch' and it had 3 posts but they did not answer my question.
I tried to dyno my bird but we ha problems with the converter locking and unlocking and I could only start the pull at 5000 rpm's.
The only way I could do a low rpm pull in third gear w/ converter locked is with a switch.
Has anyone done one of these?
I only want this for tuning on the dyno
Anyone?

[BillyCobin]

Well, I found this on how to do it to pre-93 4L60:
http://www.highperformancecars.com/crosley/lockup1.htm

There is this guy who claims to have a switch, but no info, you could email him though:
http://www.sonsofthunder4x4.com/members/coreyp.htm

The last car on this page says he has a lockup switch from PureEvil Racing:
http://www.firebirdgallery.com/drlot3.htm

Ah-ha another refrence to PureEvil Racing, except it is not a company, it is just a guy with a soldering iron:
http://www.ls1tech.com/ubb/cgi-bin/u...=000824#000003
and another refrence to the same guy:
http://www.ls1tech.com/ubb/cgi-bin/u...=001257#000002

This CompuShift thing would work, but looks expensive.
http://www.compushift.com/manualbody.htm

No luck finding specifics on how to wire a 4L60E with a manual lockup switch, I guess I would try emailing the PureEvil guy.

[ October 23, 2002: Message edited by: BillyCobin ]</p>

[SLOWBRAEATER]

I learned that when you dyno you should use a lockup switch and you will get much better results, but who am i [img]smile.gif[/img]

[john00v6a4]

<blockquote>quote:</font><hr>Originally posted by 12secondv6:
I tried a search under 'lock up swtch' and it had 3 posts but they did not answer my question.
I tried to dyno my bird but we ha problems with the converter locking and unlocking and I could only start the pull at 5000 rpm's.
The only way I could do a low rpm pull in third gear w/ converter locked is with a switch.
Has anyone done one of these?
I only want this for tuning on the dyno
Anyone?<hr></blockquote>

actually the last time i tried to dyno my car, i ran into the same problems. it sucked that i couldnt get a good reading!

[ravenp]

Forgive my ignorance, but is this for converters that dont' have lockup as a feature?

Or is this to turn OFF lockup for a better dyno reading?

I only ask because I plan to get a converter soon, and would like to better understand them first [img]smile.gif[/img]

Thanks.

[ October 24, 2002: Message edited by: ravenp ]</p>

[slacker69]

James, MAgnus has a lockup switch on his car right now it is pretty easy to install u run a wire from the pcm pin (not sure what one) to a switch and then from the other prong on the switch u run a ground.

[hawgs]

<blockquote>quote:</font><hr>Originally posted by slacker69:
James, MAgnus has a lockup switch on his car right now it is pretty easy to install u run a wire from the pcm pin (not sure what one) to a switch and then from the other prong on the switch u run a ground.<hr></blockquote>

i thought keith said he didnt and it was the worst idea ever to have one...

[Magnus]

I have one but NEVER use it.. I did use it before though which I do regret.

Unless you have a special stronger clutch lockup verter, I say don't lock it up at the track.. even if you DID have one don't do it.. you'll go faster with it unlocked 90% of the time with our applicatoins.

I would however lock it up on the dyno for you big stall guys for a more accurate reading. It takes precision. You need to lock it up in third BEFORE you go wot.. let the converter lock up.. wait a few secons.. and THEN go.. if you do it at WOT you will put excess wear on the clutch surface.