AndyBill402 Posted January 25, 2007 Share Posted January 25, 2007 A carburetor guy tells me that if the kickdown linkage to a Turbo 350 is simply disconnected from the carburetor, it will damage the transmission. Is that true? Quote Link to comment Share on other sites More sharing options...
Heckeng Posted January 25, 2007 Share Posted January 25, 2007 I have never run a th350 with any kickdown linkage for the last 10 years. I have always cut the cable and plugged the trans hole. I've never had any problems, and the transmission will still kick down due to the vacuum modulator and governor. My situation is slightly different than yours because I am not just disconnecting it from the carb, I'm not connected either place, but I would think it would be the same result. Anybody Else? Quote Link to comment Share on other sites More sharing options...
dbreese Posted January 25, 2007 Share Posted January 25, 2007 I've been running the kickdown disconnected from the carb for 4 years with no problems. Tranny is fine. David Quote Link to comment Share on other sites More sharing options...
buster Posted January 25, 2007 Share Posted January 25, 2007 Nope wont do a thing to it except bog when passing. I used to purposely disconnect it to tune the car for max torque. terry Quote Link to comment Share on other sites More sharing options...
AndyBill402 Posted January 26, 2007 Author Share Posted January 26, 2007 Thanks very much for the input. I've got my TH350 kickdown cable disconnected from my carburetor. For right now I've got the cable just laying behind the carburetor. My 383 stroker is so strong it just doesn't need the kickdown. I mentioned this to a carburetor guy (some of you would know him), and he said I'd damage the tranny due to some deal with the line pressure. The guy who built my stroker motor tells me he never runs the kickdown in his cars, and he's never had a tranny problem. So, I guess that's settled. Quote Link to comment Share on other sites More sharing options...
wallaby Posted January 26, 2007 Share Posted January 26, 2007 That is an interesting theory. I know with the TH400, when you manualy place the gear selector in the low gear position, there is more pressure directed to the clutches than if you were in low gear with the selector in the drive position. You don't notice any difference from the drivers' seat, but it's happening nonetheless. I don't know if the TH350 has something like that going on inside or not. Quote Link to comment Share on other sites More sharing options...
Mike 57 Posted January 26, 2007 Share Posted January 26, 2007 Maybe your carb guy was thinking about a 200r4 or a 700r4 you have to have a TV cable. As far as the 350 take the cable off and plug the hole if you want to. Quote Link to comment Share on other sites More sharing options...
Grease Posted January 29, 2007 Share Posted January 29, 2007 I agree with Mike57 . the guys got his trannies mixed up . the 200/700r4 need the cable . Quote Link to comment Share on other sites More sharing options...
kc8oye Posted February 18, 2007 Share Posted February 18, 2007 Yep.. the Kickdown cable on a TH350 does _NOT_ control 'line pressure' in ANYWAY whatso ever. the kick down cable controls 'kickdown pressure' to the modulator valve circuit, which also uses pressure from the modulator and govener, to allow the downshift valves to move, or stay put. you will find veyr early upshifts w/o the kickdown cable tho.. part of what it does, is hold the trans in the lower gear until late as possible when you have foot burried in it Quote Link to comment Share on other sites More sharing options...
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