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ECU Upgrade for t/C

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Old Jul 15, 2004 | 08:39 PM
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Default ECU Upgrade for t/C

well i could not find anything on the search so here ya go.

first question, with the factory S/C do they flash the ECU to take full advantage of the S/C and compensate for the added airflow? in yes what are the affects? if no then does anyone have any plans for a ecu flash that will take adavantage of the SC and remove the govener, also mabey raise the redline of the engine a little bit more then 6500RPM. any info yall got would be great. thanks
Old Jul 16, 2004 | 12:04 AM
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i dont know about that. im gonna have to say no, they dont flash the ecu because it is an "option" that is installed at the dealer. If they do, then theyve earned the installation price that they are charging. If they dont, than an ecu flash would be a great gain in hp. even the n/a tc could gain some good numbers from a good flash with as you said, i higher rpm and no limiter.
Old Jul 16, 2004 | 12:10 AM
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how do you flash the ECU where do you go?
Old Jul 16, 2004 | 12:11 AM
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This is something I'm definately looking into once the s/c's become available. Without the flash, I don't see much use for spending the $3000 or so for the s/c. I'm no expert, but adding 40-50 hp without making the proper adjustments just doesn't add up.
Old Jul 16, 2004 | 12:45 AM
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that is what im saying, look at it like this. the mini copper comes in a S/C and a N/A version. they use the same block and same parts threwought. the only difference between them in the s is sc and has a differnt ecu so look at it like the a na t/c and the tc with the sc you would think that the sc tc would have a diff ecu?
Old Jul 16, 2004 | 12:59 AM
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actually the ecu could have the map for the supercharger built right in from the factory. It is possible to expand the fuel, timing, and flow/boost tables from the factory. The ecu would just not use those portions of the maps if you don't buy the supercharger. Many trd kits are this way.
Old Jul 16, 2004 | 01:30 AM
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Originally Posted by cornfield
how do you flash the ECU where do you go?
nevermind.
Old Jul 16, 2004 | 03:54 AM
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I read somewhere that the supercharger will include a flash upgrade, at least in one stage.
Old Jul 16, 2004 | 01:31 PM
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Visit TRD's US webpage and check out the supercharger section. As you can see, some of the kits come w/ ECU upgrades, the 1.8l kit, for example. Some, apparently, also have the option for an ECU upgrade, like the 3.4l kit they have available for the Tacoma (and 4 Runner, I believe). In the Tacoma's case, they show dyno results for both Std. S/C kits and S/C's with the ECU upgrade. Here is their description of the 1.8l ECU:

Exclusive TRD Engine Management System
Supplemental TRD ECU provides recalibrates engine management for optimum Supercharger performance. Systems includes supplemental injectors that create an "intercooling effect," permitting higher boost levels for increased efficiency and enhanced power and torque.
FYI, Toyota's last official word regarding the supercharger package is this:

The turnkey performance option incorporates a Vortech scroll compressor and integrates with the factory engine management system to boost output to approximately 200 horsepower.
I think that's a pretty clear sign that they plan to use the factory ECU. I suppose they could use a piggy-back unit if they felt the need to as well, which would still be considered "integrated" into the factory engine management system.

EDIT LOL... I thought about a piggy back and added that to my post around the same time KrAuSeScIoN did.

Regarding bumping up the redline (I'll assume you're talking about the fuelcut off point which is near 7500 I believe, defenitly not sure though) in addition to the S/C, I think doing that, w/o valve train upgrades and/or strengthening the rods (shotpeening maybe), would be a bad thing. You don’t want valve float becoming an issue, nor unnecessary stress on the rods. Unless, of course, the redline is set very conservatively from the onset and there is very safe margin of cushion already built in. Someone familiar w/ the 2AZ-FE would really need to shed some light on the subject.
Old Jul 16, 2004 | 01:39 PM
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I believe I heard there will be a piggyback for the ecu as part of the kit.
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