We need more motoring threads

[JK8]

:drool:

 

[Fazda]

Those mags on the GTi look 10 000 times better than the standard ones...drool indeed!!

 

[JK8]

Those mags on the GTi look 10 000 times better than the standard ones...drool indeed!!

Yip!!
It so easy to make these cars look super sexy!!
Hows this MK5?

 

[Rouxenator]

I really can't understand the fascination with boring station wagon look-alikes but then again there are certain types of gay porn that I also do not get. Guess you have to be in it to understand it.

 

[Darkwing]

http://www.carforums.co.za That is all..

 

[blaaislaai]

Yip!!
It so easy to make these cars look super sexy!!
Hows this MK5?

My favorite color

 

[JK8]

 

[TestMate]

Most of the tuners have different ECU maps for altitude and coast - usually because they say there is less air pressure and therefore less oxygen at altitude. (This is also the reason we get lower octane at the REEF (sorry!).)

On fuel injected cars there is often a sensor called a MAP (manifold absolute pressure) which measures the absolute air pressure in the manifold. On normal cars this is often the same as the ambient air pressure. On a turbo car this is the ambient air pressure plus the boost pressure. But the turbo can just work a little harder and make up the difference (if there is any to start with in the 1st place) - so why the different maps?

The answer is in your question:
leaner air = octane difference = different maps
AND the air density during a hot day in the cape is not the same as on the reef.