ECU remapping

ValoSunnyGti · Post by **ValoSunnyGti** » Tue Aug 12, 2008 11:19 pm

Now before any of you moan about my money habits this is not something i am thinking of doing it is just a question in the air,

I currently have an uprated air filter and full custom exhaust. If i was to remap the ecu would there be much point?

Just curious as i want to start learning to do remapping .

duncan · Post by **duncan** » Wed Aug 13, 2008 5:15 am

As a general rule if you are changing the way air gets in or out of the engine versus what it was designed to do, there will be differences in calibration for how much fuel is added and how/when the turbo spools. This would lead me to say that a remap is needed or beneficial.

I am not sure how your car's ecu works though so dont know whether the boost control is good or fueling has enough leeway to compensate for the reduced restrictions.

Tread carefully if you do tinker.

ScoobieWRX · Post by **ScoobieWRX** » Wed Aug 13, 2008 7:32 am

....and don't hook your ECU up to a PC....eh Duncan

Use a laptop instead otherwise you you'll be eating fried ECU and chips!! :thumb:

ValoSunnyGti · Post by **ValoSunnyGti** » Wed Aug 13, 2008 7:35 am

What about on N/A engines?

Is it something that someone can do them selves. I.E is there a Dummies guide to Remapping book

RX7 · Post by **RX7** » Wed Aug 13, 2008 7:45 am

I dont think you'd get a lot more horsepower from those mods. But any changes to a car would be worth tweaking the map.

Presume you need something like the ecutek, datalogit or conzult application that connects to the ecu and alows you to read the settings and change them.

ScoobieWRX · Post by **ScoobieWRX** » Wed Aug 13, 2008 7:50 am

Looking around Tom it looks like you would need to get your ECU chipped rather than do it yourself.

As for normally aspirated engine you are not going to see anywhere near the power gains a turbo version would provide so to get decent power it's back to good old engine machining, lighter pistons, Rods, crank, head porting/skimming, gas flowed manifolds, bigger valves etc..etc... to get more bhp from your motor as well as a re-chip to get max benefits from all the money you're spent to gain an extra few bhp :lol:

If you want lots more BHP get another car!!

ValoSunnyGti · Post by **ValoSunnyGti** » Wed Aug 13, 2008 10:03 am

hmmm. so basically if you want to see good gains, it needs to be either a turbo engine or a n/a with an owner with deep pockets.

Well learn something new everyday , thanks for the info guys :thumb:

rayman gtir · Post by **rayman gtir** » Wed Aug 13, 2008 9:26 pm

i dont think you can map a std GTI ecu. if your going to do any mods to your car i would be to drop a gtir engine in it.

pablo · Post by **pablo** » Thu Aug 14, 2008 6:53 am

There are other ways to improve the on road performance of a car without touching the engine or ecu. As i don't know anything about your car I can't say if it would work for you. It depends upon weather or not parts are inter changeable between the gti and the gtir. Compare the gear ratios of the 2 and also the ratios of the diffs.

ScoobieWRX · Post by **ScoobieWRX** » Thu Aug 14, 2008 7:07 am

You could always try running it on Methanol with lots of timing advance. I just wouldn't want to be to close to you when your Methanol goes up

No extra long straws in the Tank Tom, it's not good for you!! :lol:

I think what Tom really wants is a bit of go faster magic fairy dust :gayfight: