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IdahoRob 10-09-2005, 10:21 PM O.K. I now have a race tcm and a street tcm. What I need is them both to be hooked up and to have a switch that I can flick to change between the two. Any ideas? Fingers? My dash panel is beginning to look like a 747, one more switch won't hurt. C.A.P 10-09-2005, 10:40 PM Im laughing out loud right about know, as I do know how you feel , I just put the boost fooler in and it was another switch .............that is funny:lol: Mike L. 10-09-2005, 10:43 PM O.K. I now have a race tcm and a street tcm. What I need is them both to be hooked up and to have a switch that I can flick to change between the two. Any ideas? Fingers? My dash panel is beginning to look like a 747, one more switch won't hurt. Let me see; 32 wires and One toggle switch, no problem. ):h Fingers 10-09-2005, 10:44 PM O.K. I now have a race tcm and a street tcm. What I need is them both to be hooked up and to have a switch that I can flick to change between the two. Any ideas? Fingers? My dash panel is beginning to look like a 747, one more switch won't hurt. Don't have my SI manual with me, but you can have em both on the same harness. You will need to do some splicing. Then toggle the power on the different TCMs. The one with power will be active. IdahoRob 10-09-2005, 11:19 PM Sounds good Jonathan,:grd: DURAtotheMAX 10-09-2005, 11:55 PM Thats actually a great idea!! You just need a 32PDT relay :) ---Ben Where would you mount the 2nd TCM tho? sp33d 10-10-2005, 12:30 AM Can't you change them in two minutes flat yet Rob? IdahoRob 10-10-2005, 01:53 AM Yeah, but the vette's get nervous when I open my hood.(except you Kat) QuikSSilver 10-10-2005, 02:21 AM Don't have my SI manual with me, but you can have em both on the same harness. You will need to do some splicing. Then toggle the power on the different TCMs. The one with power will be active. purrdy good Idea in theory... just basicly double the connectors that connect to the TCM minus the power(or ground which ever would be better) and switch only that one..... thus switching the active computer... however the questrion is could the computer actually take that kind of instant-on and instant decision making or does it need a bit of so called "boot time" to gather the info one what the transmission is doing before it could work properly in this crude way? ready for flames...... past my bedtime.... lol maybe thats a ludicrous idea. Got Juice? 10-10-2005, 02:28 AM when you 'energize' one TCM will current not feed back to both units causing a conflict? Inquiring minds want to know RedRiceEater 10-10-2005, 02:52 AM purrdy good Idea in theory... just basicly double the connectors that connect to the TCM minus the power(or ground which ever would be better) and switch only that one..... thus switching the active computer... however the questrion is could the computer actually take that kind of instant-on and instant decision making or does it need a bit of so called "boot time" to gather the info one what the transmission is doing before it could work properly in this crude way? ready for flames...... past my bedtime.... lol maybe thats a ludicrous idea. Even if the TCM can't take an instant switch I think it would still be an improvement to flip a switch then start the truck than a tcm swap. :) I don't have enough power to worry about it so I don't know for sure. RedRiceEater 10-10-2005, 02:53 AM when you 'energize' one TCM will current not feed back to both units causing a conflict? Inquiring minds want to know Could you use a diode to prevent backflow? Just tossing out some ideas to try to help. Fingers 10-10-2005, 03:42 AM Isolated input and outputs on the TCMs. Should not be a backfeed problem. You would have to do the switch from the key off position. A latching relay circuit would be a good way to keep from inadvertently switching when there is power. Dmax Tim 10-10-2005, 06:59 AM What about the extra weight slowing u down ):h Kennedy 10-10-2005, 10:13 AM My question here is can you back up McRat's results or at least verify a gain? IdahoRob 10-10-2005, 11:35 AM My question here is can you back up McRat's results or at least verify a gain? I'd say yes, your TCM helps click off shifts faster than my factory one. My 1/2 and 4/5 shifts have never been faster. My 2/3, 3/4 shifts are lacking, I don't think your TCM has anything to do with it, it's just tired. I did have a bang or shutter around 100mph or so on every pass. I've never had that before with stock TCM. Not sure if it's just the tranny giving up the ghost, or a quirk in the software. Any thoughts? Kennedy 10-10-2005, 12:03 PM At 100mph you've been locked up in OD for some time. Could be engine management. The transition across the threshold of the speed limiter can be less than smooth on some tuners... I've also seen slipping clutches (usually stock TCC but that's not saying it couldn't be 5th gear) actually come back in and grabbing with a shudder on the dyno. This occurs typically as RPM's come up and so would line pressure a bit... Kat 10-10-2005, 12:03 PM Yeah, but the vette's get nervous when I open my hood.(except you Kat) :D Idle_Chatter 10-10-2005, 12:05 PM when you 'energize' one TCM will current not feed back to both units causing a conflict? Inquiring minds want to know 31 diodes and one interrupted power/ground?:rolleyes: RedRiceEater 10-10-2005, 12:15 PM Idle_Chatter we already got disproved on that idea. Isolated input and outputs on the TCMs. Should not be a backfeed problem. You would have to do the switch from the key off position. A latching relay circuit would be a good way to keep from inadvertently switching when there is power. bigd 10-10-2005, 10:28 PM I just swapped to my other tcm today and had the key on listening to the radio. I had about 4 trans codes when i started it up. Also it only took 5 mins but the idea is a good one thats why i have two one for racing and one for normal driving, atleast anyways, thats why I have two now. | ||