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Tuning My Ownecu

Crans

By Crans,
in Engines & Forced Induction

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Crans Mentor

Crans

Posted
Posted

Hi,

I want to learn the basics of remapping a car. I have an r32 GTST. What hardware/software do I need to buy to to remap my ecu.

I really want to have a play and learn more about my car.

I have a friend that is experianced in tuning some other type of cars that will give me a hand.

And before you say dont do it you will blow it up,, I really dont care if i destroy the thing its a toy.

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Adriano Grand Master

Adriano

Posted
Posted

Mate there is nothing game about it, you will need an eprom burner, and datascan. A consult also helps. If you can get a wideband a/f meter it also helps, but as long as your car doesnt have any problems(such as fuel pump) then its not absolutely necessary. My first remap was on my Z32 tt. The A/F ratios are calculated in the numbers you enter into the appropriate rom addresses. We entered 12:1 afr for the full power load cells, and took it to a dyno day- result exactly 12:1 afr under load. There are a few programs out there, and many of them are freeware.

Rolls Grand Master

Rolls

Posted
Posted
The A/F ratios are calculated in the numbers you enter into the appropriate rom addresses. We entered 12:1 afr for the full power load cells, and took it to a dyno day- result exactly 12:1 afr under load. There are a few programs out there, and many of them are freeware.

You sure about that? I'd definitely invest in a wideband O2 sensor for tuning and make sure you hook up some sort of knock detection as well.

Adriano Grand Master

Adriano

Posted
Posted
You sure about that? I'd definitely invest in a wideband O2 sensor for tuning and make sure you hook up some sort of knock detection as well.

Yep, sure. If your running a stock AFM and injectors, then the cells for load are entered as the hex value of the afr you want to run, but would definately agree about the wide band. Knock can be monitored by consult.

MrStabby Grand Master

MrStabby

Posted
Posted
But stock afm/injectors are almost 20 years old now, surely it'd be risky to think they are still working the same as when they came out the factory?

He ran it on a dyno and verified the result, so there's no much room for doubt.

Knock can be monitored by consult.

I have a consult interface and have datascan and ecutalk - neither of which show knock. Do you know of any consult software that has knock reading? Datascan can monitor arbitrary memory locations, so i assume if i knew the location i could read the sensors output...

Adriano Grand Master

Adriano

Posted
Posted
But stock afm/injectors are almost 20 years old now, surely it'd be risky to think they are still working the same as when they came out the factory?

Everyone who drives these cars assumes they are still working the same, the factory doesnt tune the management to allow for things wearing out. Injectors and AFM tend to fail rather than lose performance, the only exception is injectors which if never cleaned can become dirty(although with modern fuels it doesnt tend to be a problem, there are plenty of cars with 300000k's with the original injectors.

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