i found this online and was just wondering what is keeping us from using the 320 hp capable a340e from the MKIV on the MKIII.
http://www.supras.nl/view.php?page=modsEngineReplacement.htm
Why not drop in the A340E of the Twin Turbo
Good question! First of all for the people who don't understand this question: The A340E automatic transmission of the 2JZ-GTE is not the same as the A340E transmission of the 7M-GTE. (Hence the name I would say
First of all there are minor differences like fluid usage; while the M series auto trannies use the same as the 2JZ-GE auto tranny (ATF Dexron II), the A340E transmission of the 2JZ-GTE uses ATF Type T-II, and one liter more (in total 8.2 liter).
Then the torque converter of the 2JZ-GTE is different; the stall torque ratio of the 2JZ-GE auto tranny is 1.9, the 2JZ-GTE is 2.0 and the 7M-GTE uses 2.1. Furthermore the 2JZ-GTE automatic transmission uses one more disc for the forward clutch (C1), namely 7 instead of 6.
So all together a little difference between the auto tranny of the 2JZ and the auto tranny of the M series. Let's see what the end gear ratio is, for the M series we have the end gear ratio the same as the manual; 3.727. For the JZ series we have an end gear ratio of 3.769. Wow, nearly a perfect fit. A little difference but not all too bad I would say.
Main questions to be answered will be: How are you going to fix the speed sensor for the ABS? How about the driveshaft, is it a bolt on or slide in? For what I have seen on the EPC program, I think the driveshaft is bolt on, just like the manual, but I could be wrong. As I'm going with the auto tranny on my 2JZ I tell you my considerations: I can upgrade my auto tranny to withstand 600 RWHP for less than 600 USD. So why would you bother using the auto tranny of the mkIV when you hear all this?
discuss cus im curiouse
http://www.supras.nl/view.php?page=modsEngineReplacement.htm
Why not drop in the A340E of the Twin Turbo
Good question! First of all for the people who don't understand this question: The A340E automatic transmission of the 2JZ-GTE is not the same as the A340E transmission of the 7M-GTE. (Hence the name I would say
First of all there are minor differences like fluid usage; while the M series auto trannies use the same as the 2JZ-GE auto tranny (ATF Dexron II), the A340E transmission of the 2JZ-GTE uses ATF Type T-II, and one liter more (in total 8.2 liter).
Then the torque converter of the 2JZ-GTE is different; the stall torque ratio of the 2JZ-GE auto tranny is 1.9, the 2JZ-GTE is 2.0 and the 7M-GTE uses 2.1. Furthermore the 2JZ-GTE automatic transmission uses one more disc for the forward clutch (C1), namely 7 instead of 6.
So all together a little difference between the auto tranny of the 2JZ and the auto tranny of the M series. Let's see what the end gear ratio is, for the M series we have the end gear ratio the same as the manual; 3.727. For the JZ series we have an end gear ratio of 3.769. Wow, nearly a perfect fit. A little difference but not all too bad I would say.
Main questions to be answered will be: How are you going to fix the speed sensor for the ABS? How about the driveshaft, is it a bolt on or slide in? For what I have seen on the EPC program, I think the driveshaft is bolt on, just like the manual, but I could be wrong. As I'm going with the auto tranny on my 2JZ I tell you my considerations: I can upgrade my auto tranny to withstand 600 RWHP for less than 600 USD. So why would you bother using the auto tranny of the mkIV when you hear all this?
discuss cus im curiouse