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Hi I've got an r33 gtst s2. I have done a fue mods to my care from suspension breaks through to the engine which is where I need help. I have upgraded the coil packs, inter cooler, pod, turbo timer electronic boost controller and a new upgrade turbo to the car. I'm wondering if I should now do the computer and if so what to go for. My budget is limited as I've blown the bank ont the rest of the mods any ideas. I've tried doing a tone of research but keep coming up with all different things

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This has been covered a bazillion times and I should tell you to search and/or read the stickies. Nevertheless....

Easiest is to buy a PowerFC. Next easiest is to get a Z32 ECU modded with Nistune to suit R33. After that there are various aftermarket ECUs that come in plug in form.

If you really want to bump the power you're going to run out of injector and AFM capacity, so you'd need to upgrade those. AFM only needed with PowerFC and Nistune, otherwise you convert to MAP sensing.

You need ay least $1500 to start this exercise. Got to buy the ECU, get it fitted and tuned. Injectors and AFM upgrades will cost more than another grand, and you will want to upgrade the fuel pump probably even before you have to do those (old std fuel pumps are just waiting to diw and kill your engine, especially when you wind up the boost).

For budget, contact Toshiba on this forum. He will be able to do a mail order remap for your mods at cheap price.

Username = toshi (unless he's changed it). You'd still want to do a dyno run after just to make sure it doesnt ping. Toshi has to make his remaps on the assumption that all the components in your car are working normally, if they're not you may find that while it wasn't a problem with the super conservative factory tune, it is a problem with the remap. Also, the remap tune can never be as good as a proper dyno tune, however, it will be way better than the factory tune.

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