Performance chip - '90 Supra 7mgte?

Just wondering if there is performance chip made for this year Supra and, if so, what members of the group recommend. Thanks

Reply to
edward dannan
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Best option for an engine like that would be something like an E-Manage or Unichip ECU piggyback, rather than just a chip swap.

For a street driven car they are much more affordable than a full on ECU swap and loom replacement and are both mapable with a laptop and the right software.

Other options are the AEM plug and play replacment (uses the factory loom and adaptor + one or two sensors depending on how the 7Mgte is operated), the Apexi PowerFC (usually only mapable from an Apexi dealer), Motec/Haltech/Autronic (full on motorsport ECUs that usually need a full loom replacment).

If you are handy with your hands and a little creative electronic/electrically, there is also the Megasquirt (loads of google info). You build it yourself (kit costs $250ish plus your time).

Factory looms can be adapted and some of the MK1 MR2 guys have had good results using it with factory sensors and the 4A-GE engine, both normally asperated and as part of DIY turbo projects. you would need to build an adaptor to join between the Toyota ECU loom plug and the Megasquirt plug, or find a used ECU from pickapart etc, and build the Megasquirt board to fit inside it, and match the Megasquirt wiring to the Toyota ECU case pinout.

Good thing about the Megasquirt apart from cost is, if you Supra uses an Air Flow meter, you can ditch it and use the Megasquirt map sensor, and actually gain on fueling and efficiency. Also, the Megasquirt can be used as a Boost controller/Nitrous controller/Water injection controller too, using the "Extra" code, as well as basic fueling and ignition. Downside is, if it is for your main/only car, you might be off the road while troubleshooting the install.

Problem with replacement "chips" rather than piggybacks or standalone replacements is that in a lot of cases, all they remove are things like fuel/boost cut, without adding anything to the fuel maps.

Reply to
Sleeker GT Phwoar

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