1.8T Main Hoses and Connections Diagram

Posted by martin on 16 August, 2008 04:15 | Permalink | Engine | Hits (2260)

Yet another MK4 GTI homebrew project

Posted by martin on 27 July, 2008 22:30 | Permalink | Engine | Hits (1810)

Take it easy. just see the snapshot of the Dyno monitor..

wow. you would see engine outputing power is over 620p in the screenshot. and the wheel based power is around 540whp.

And, sorry, using mobile phone to take photo, i know the resolution is not awful. :(

The fuel is not quite ok so far, it could be even more better afte some fine tune.

At least, the figure is not so bad, isn't it?


Have you ever checked the IAT sensor?

Posted by martin on 09 October, 2007 21:12 | Permalink | Engine | Hits (2372)

Ok, What is IAT sensor? It is Intake Air temperature Sensor.  It would get dirty once you get some mileage. Here is a normal IAT sensor after around 10,000 KM mileage.

And why IAT sensor is so important? Well, the ECU use the measurement of the IAT sensor to determent the fuel to be injected into engine since air temperature effects air density. (colder air is much more dense). Once your IAT sensor got wrong signal, then your ECU won't calculate the right fuel injection, in such condition your car would lost some horse power and it would cost your more on buying gas.



Ok, let us talk about 588ps Golf MKIV GTI today.

Posted by martin on 04 October, 2007 21:39 | Permalink | Engine | Hits (3077)

As you can see the chart, it is 588ps, and 'Yes', it is a dyno chart of a Golf MKIV GTI and the max boost pressure is around 1.8bar and the turbo is GT2871R.

The ECU was remapped by our own team. Yes, it is a manual and custom designed ECU software made by ourselves. And it is really a very very good result on dyno as you can see. It is, so far, probably the most powerful 1.8T in Taiwan. :)


Cleaning and Pulishing work.

Posted by martin on 16 September, 2007 19:20 | Permalink | Engine | Hits (1740)

Ok, eventually I have some free time today to do some clean job of engine bay. I cleaned it all and pulished some metal stuff as you can see in the picture. It took me about one and a walf hours to pulish them. The intake manifold, part of head cover and pipes are pulished totally this afternoon. It does look like nice, doesn't it?


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