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How do I lockup my converter for dyno testing???

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Old May 25, 2007 | 11:15 AM
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ARCTICWHITE98Z28's Avatar
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Default How do I lockup my converter for dyno testing???

I want to lockup my Fuddle converter when I go to the dyno so I can see if my nitrous is just blowing through the converter. Can anyone tell me how to do this without any tuning software? THANKS
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Old May 25, 2007 | 02:20 PM
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dennis? You have done a search on here and you have to wire up a toggle switch to the tcc solenoid and such. ill see if i can link you to it.


edit: posted by jimmyblue

Off the top I would say you want a DPDT switch like:

side 1 - common to TCC solenoid on trans, NC to the
PCM TCC solenoid drive, NO to ground

side 2 - common to TCC PWM on trans, NC to the PCM
TCC PWM drive, NO to IGN +12V source

Then normally-closed (NC) will be normal operation and
the other (normally-open, NO) will be hard-locked with
full TCC duty (100%).

You might substitute a DPDT relay and drive the coil with
a cuter, pushbutton switch etc. and maybe add a LED
indicator just so you don't get hung up; if you are into
relay logic you could make it latching and unlatch with
the brake light etc. too.

Last edited by LS14Winter; May 25, 2007 at 02:26 PM.
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Old May 27, 2007 | 08:45 AM
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You better make sure your converter can handle the WOT lockup also. No all converters are designed to handle the abuse.
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Old May 27, 2007 | 02:32 PM
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i just use EFI live to do it.
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Old May 28, 2007 | 10:19 PM
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put it down in third gear and it will not flash, but the person that has the dyno im sure hs tuning software and can lock it for you
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