How much boost with a standard head gasket?

[jimnielsen]

yes.. use the 1.9mm one if you want similar thickness to the original gasket. Put it on totally dry - with no adhesives or anything

http://www.ebay.com.au/itm/COMETIC-H...item483f804168

here is where I got it from on ebay.. the 075 is the part number for a .075" / 1.90mm one

[bussone]

Thanks Jim, this is exactly the gasket I have ordered.

[bussone]

I finally had my Q4 chip tuned this weekend by MaxiBoost after completing some of the bits and pieces that might have affected the logs during tuning. This is not the first time that I see the end results of chip tuning as I had one on my GTV V6 TB and my previous Spider 2.0 TS. I will not mention the chips by those but I should say that MaxiBoost did a tremendous job on all the rev ranges of the car, drastically changing the Q4's character and pulling power. Turbo boost is now limited to 1.35 bars now, and the boost starts to develop starting from 2000 rpm. I should again thank MaxiBoost for his efforts before and during tuning. He did not call it a day before assuring that everything is okay for him and I am happy with the results, even after 4 hours of rolling road test.

[Steve Webb]

Hi Bussone, sounds like you are happy with the new chip, was the remap to make the car more flexible to drive or to get the maximum power?

[bussone]

Yes Steve, indeed it is. 2nd and 3rd gears become much more easy to use in slow city traffic and acceleration flexibility is considerably improved.

[mpampis_]

The chip is made by Hakan? I know that he is doing great job

[bussone]

Yes mpampis, the chip is by him.

[mpampis_]

With a nice setup you could have 250 hp at 1.35 bar boost

[bussone]

I hope so, I will have a dyno test at the first opportunity. I am very curious about the results, particularly the torque figures.

[rumbler]

Again:

I wouldn't choose a fmic if I am going to change the intercooler. The reason is I don't want a longer boost path. The bigger is not the best always. Especially in this subject...

I would choose to apply an air to liquid (Doesn't matter water or anything else...) intercooler instead of the metal pipe carrying air from ic to throttle body. The coolant radiator can easily be adapted to the original ic's place.

This option would shorten the path of the boosted air as directly from turbine's air output to the inlet of the intake manifold and get the air cooled more efficiently.

Do I have to tell any of us what the result should be if we have more efficient air flow (cooler than any kind of air to air ic application) to the engine and lower the turbo lag?

[rumbler]

Another note:

You can use any fuel that offer more ron (It can even be LPG...) to avoid detonaion.

[Steve Webb]

With a nice setup you could have 250 hp at 1.35 bar boost

Must have missed this the first time around, on the Dyno a few years back my car made 270bhp running 1.35bar max boost with the standard IC.

I'm not a huge fan of front mounted ICs due to the path the air has to take through them either.