bccan

I haven't been able to dig up much info on subject but noticed Dr Dan mentioned it in a post recently. I have a TCS 9x11 billet converter w/ a CK billet trans. I would love to hear from some people w/ knowledge about locking the converter during a run.

1) Do you find an advantage in doing this ie does it lower e.t., help mph?

2) Do you have any comparison between Lock/Non Lock runs?

3) How risky would you consider it regarding parts breakage?
(I drive 100 miles each way to/from track)

4) Is there a general consensus on what point of run/what gear to lock it
or is this completely trial & error?

68conv455

I have a CK performance 2004R Billet just like you. When I picked it up, Chris told me the only thing I couldn't do was apply WOT with the TC locked up. Mine is only set up to lock-up in 4th gear, so maybe this doesn't apply. Or maybe it does.
Be careful.

MXman112

I read Dan's post as well and have the capability to lock up in any gear but have never done it at the track. I believe DR D only locks his once it hits 3rd.
I was thinking to give it a try next track trip but as with you I have a little drive to and from and don't want a tow truck involved. T&T is Thursday night, hmmmm.

rustyroger

Maybe it would be a good idea to disconnect the lock up switch while you are at the strip.
I don't know if locking the converter would help or hinder et, but locking up under wot would put a shock load on the transmission that might put your car on a trailer.


Roger.

bccan

MX - I think you should try it every run Thursday & report Back Friday!

I'm trying to find an 11.99 without making a lot of changes to my nicely street mannered combo but the few tenths haven't magically appeared, It is apparent I am gonna have to find them. I thought this might be a place to pick up a tenth or two but not if it is risky for parts breakage.

I'm 4th only lockup w/ Bowler delay but can just wire a switch directly for the track if I want to.

Keep those cards & letters coming, it looks like a few of us seek enlightenment.

TexasT

You will pick up tenths but how many depends on how much slip your converter has at the top end.
Unless you like swapping converters I wouldn't make a habit of locking it up at the top end. You will wear out the converter clutch. If you are going to do it regularly get a multidisk that is designed for it. Plus you are putting that converter clutch material through your trans as it wears.