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Forums Junkie


Location:
Perth
Registered:
October 2003
1JZ auto and manual output difference Tue, 28 October 2003 04:48 Go to next message
Ive heard that the power and/or torque is less with the autos than the manuals. If this is true, what is different between the engines? Camshaft timing, computer?
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Celia-Sue
Forums Junkie


Location:
Perth
Registered:
October 2002
Re: 1JZ auto and manual output difference Tue, 28 October 2003 05:21 Go to previous messageGo to next message

I've heard similar comments. Most Soarer owners cire about 5-10rwkw less for autos. The stock auto ecu does retard while changing gears, but I don't think this will rob a lot of power. I'm assuming that there is a greater power loss in getting power to the wheels as auto's have more moving parts to sap power. Some of this might be fixable by rebuilding the autobox with a firmer shift and parts.

Just speculation on my part.

Justin
Auto 1JZGTE powered 1984 Celica-Supra
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Pete
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Location:
gold coast
Registered:
May 2002
 
Re: 1JZ auto and manual output difference Tue, 28 October 2003 11:45 Go to previous message
I'd say it may have something to do with the fact that an auto tranny has the ability to load up an engine more for a given rev/boost point within the ECU's maps.

Toyota more than likley retard the timing a bit to compensate for this.
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