Ecu tuning

Updated: 09 Dec 2024

Does anyone here know how to tune the ecu of a 1nzfe automatic?

Comments

Need a stand alone.. I think megasquirt makes one.. Or a piggyback

Dont know what that means

So its better that i get it done from a professional rathar than myself ?

Depends on your level of understanding.. The physical installation is easy.. But.. You need to understand fuel curves, timing, and heat.. Honestly its not terribly hard, but it is important to note that you can blow the engine if you get it wrong.. Why do you want an ECU? Do you have the internals built on the engine?

Nope

If you have stock internals, there’s no reason to change the ECU, upgrade it, or tweak it.. You are talking easily 800USD for the equipment and 300.00 for the tune, on a stock 1nzfe, with full exhaust and CAI, and 1zzfe injectors, you might see 25hp.. Without the ECU tune, and with the rest you would see 18-20hp over stock.. So why would you get a stand alone, or change the stock tune?

I just need to make it fast

Figure a decent rough estimate on cost to make power with that motor is in the 3-4K dollar range..
That will give you around 300Whp.. and will make it safe to daily drive.. But only if you go manual transmission..

The automatic will handle about 150Whp before it blows apart..
And if you wanted to retain the automatic you need to add an additional 2-3K more dollars to the build to have the transmission sent away to be built up..

So first of all i should get a manual transmission ?

Make it fast..

Manual transmission is mandatory
Pull the motor from the car..
Take completely apart
Purchace forged crank
Purchase block sleeving kit
Purchase forged conrods
Purchase titanium wrist pins
Purchase forged pistons
Make sure pistons lower the compression rating..
Purchace ultra high performance gasket kit
Purchase high flow fuel pump
Purchase fuel pressure regulator
Use fuel rail and injectors from 2jz supra.
Purchase megasquirt piggy back computer
Purchase arp bolts studs
Purchase turbo kit, run 18-25psi
Full exhaust
Put motor back together and torque everything to spec
18 purchase front mount intercooler.
Use all synthetic fluids
Send car for dyno tune..

Full built 1nzfte is good for 500whp..

Transmission side..

Purchase manual trans
Purchase celica gts cvjoints
4agze lsd from c50 trans will work
Purchase lightened flywheel
Purchase new clutch, throw out bearing, shift fork, pedal and manual ecu for the 1nzfe engine.

Bolt everything in..

Race..
Dont forget good tires..