Power The 'nice guy' Donating Members 314 Member For: 19y 7m 7d Gender: Male Location: Sydney (Area around Ryde) Posted 22/10/07 10:35 AM Share Posted 22/10/07 10:35 AM I'm looking at auto options, next week or so to commence. Anything from ~$3K to >$7KOne thing confuses me.e.g. If I want to the 'stall' speed of my converter to be, say, 2,800rpm - why is it that this seems so easy to most?I would assume a SPECIFIC torque converter would certainly have a different stall rpm in say a stcok XR6T vs. one running >400rwkw as per my current project -> Because Torque would be the factor that would change this.Another example: If running a low tune of say 320rwkw, and then going race tune of say 400+, the stall rpm should be higher at 400+ - let's assume peak power/torque rpm are the same.Is there something I'm missing? I would think your tuner and his selection of torque converter would be critical? Link to comment Share on other sites More sharing options...
JP300 Donating Members 842 Member For: 19y 1m 27d Gender: Male Location: Sydney Posted 22/10/07 10:41 AM Share Posted 22/10/07 10:41 AM I'm not a stall converter expert but I think that the stall rpm is simply where the converter locks up. I do not think it has anything to do with your actual torque curve. It is more depended on the fluid pressure in the converter and the rpm of the engine. Link to comment Share on other sites More sharing options...
Power The 'nice guy' Donating Members 314 Member For: 19y 7m 7d Gender: Male Location: Sydney (Area around Ryde) Posted 22/10/07 10:43 AM Author Share Posted 22/10/07 10:43 AM (edited) I'm not a stall converter expert but I think that the stall rpm is simply where the converter locks up. I do not think it has anything to do with your actual torque curve. It is more depended on the fluid pressure in the converter and the rpm of the engine.I've heard your 'stall' is 3,000rpm (whatever).Is this the same for any of your tunes - will answer the question! Edited 22/10/07 10:43 AM by Power Link to comment Share on other sites More sharing options...
Power The 'nice guy' Donating Members 314 Member For: 19y 7m 7d Gender: Male Location: Sydney (Area around Ryde) Posted 22/10/07 10:50 AM Author Share Posted 22/10/07 10:50 AM I'm not a stall converter expert but I think that the stall rpm is simply where the converter locks up. I do not think it has anything to do with your actual torque curve. It is more depended on the fluid pressure in the converter and the rpm of the engine.And yeah...atually it's a function of RPM & TORQUE....but lock up is interesting....but lockup of a 2,800rpm converter at 2,800? Not so sure. Link to comment Share on other sites More sharing options...
JP300 Donating Members 842 Member For: 19y 1m 27d Gender: Male Location: Sydney Posted 22/10/07 10:53 AM Share Posted 22/10/07 10:53 AM At the moment I have only been given one tune! I'm in line for a shopping tune and a full-on race tune on some higher octane unleaded ...Answer: If I had three tunes then regardless of which tune I was running (with three different torque curves) then the stall converters lockup or nominated rpm is about the same.I hope that sorts it out ? ... Someone please correct me if I am wrong. Link to comment Share on other sites More sharing options...
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