unichip or powerchip?

[kevrolla]

hi, i need advice on chiping my car with unichip or powerchip? which is the better option? or shuld i jus chuck in an apexi safc?

[MT]

there isnt a powerchip for the rollas...

...and unichip isnt worth it for the price

[1zzfewagon]

there isnt a powerchip for the rollas...

...and unichip isnt worth it for the price

I got heaps in my car

[CHA54]

Unichip isn't worth the gains and you're stuck with places you can go to for tuning.

There's plenty of secondhand emanages around now that the Emanage Ultimate is out. They can be picked up as cheap as $250 including the ignition and injector harness and tuning cable/software.

There's SFA gains to be had on the ZZ motors with just AFR tuning, you need ignition advance if you want more power. You just have to be careful because with too much advance the knock sensor will kick in and pull ALL the timing advance out causing the motor to make less power than it does stock. The same goes for any piggyback ECU/chip.

PowerFC doesn't have this limitation and also gives you the opportunity to increase the revlimit, which is also helpful to get a few extra kw if your motor is still increasing power when it hits revcut and your rods can handle a few extra RPM.

The piggybacks can't increase the revlimit on a stock toyota ECU.

[Gipper]

Which Chip you go for really doesnt make a whole heap of difference. Jim Richards runs a Unichip on his Porsche 911 race car, so it cant ba all bad.

What DOES make the difference is the tuner. The guy who tunes the car makes more of a difference than the chip that you use. You could get a top of the line MOTEC worth 10 grand and it will run worse than stock if your tuner doesnt know what he is doing.

make sure your tuner is very experienced in tuning your chip, tunes it on a dyno (not by some flash rom, as every engine is different), and preferrable you know others who have had their cars and chips dyno tuned there as well.

I have run cars with Unichips to MOTECS, the tuner makes all the difference!

[MR22ZZ]

overriding the knock retardation on the stock Toyota ECU is the issue with these chips... as you cannot... as such the ECU eventually retunes the car around whatever your tuner has done. So unless you are prepared to pay for the chip to be retuned to the ECU every 3 months it's not worth it.

do not compare with a Porsche ECU as they are very different things :)