Quote:
Originally Posted by Piwoslaw
The mods look quite good on your pics 
It appears that the sides of the red Kamm extension are drooping inward. My guess is that they shouldn't be - the airflow will detach too early and they won't help any. But the top looks OK, as do the skirts.
And I love the sponge under the gas pedal: It lets you now when to stop pressing, but still allows max acceleration when needed.
The yellow circle with the '80' is to let other drivers know that you don't expect to go faster than 80 km/h, correct? Does that really help reduce the number of tailgaters? |
Yes, just a tiny bit inwards, they are almost straight, but last piece of black top side was bit narrower than first part, of course this is the idea of kammback to narrow towards rear, but it would require rotating sides and that I did not manage to do properly, so there is tiny bit of curve on support, mostly on other side, while other side is pretty much straight, I have only thumbs on my hands, someone forgot to install other fingers at factory
Anyway dust seem to settle to red support pieces of Kamm so that means they are too much inwards, I could try to bend them more outwards when time permits, it is quite thin metal so easy to work with bare hands.
Sponge is very old trick, they used that already in 60's in here, probably the most effective mod, when tuned properly, it should not be too restrictive but not too easily compressing either, should be set so that when foot is resting on pedal relaxed, then you are travelling normal speed on level road, so it is bit like drive by load cruise
80 sticker on back is required here if car is converted to van class, cheaper tax and insurance, but not allowed to drive faster than 80km/h, I have not really converted mine, but as I don't see anymore point trying to drive 100km/h because there is very short pieces of such speed on our roads and even on those sections there are always many drivers driving slower, so I drive only 80km/h.
It helps on faster roads and there is not much tailgaiters anymore as I put that sticker on, they are now kamikazes that overtake at insane places, but I often show when it is ok to pass and usually slow down or go side of road just to make road bit safer, when others seem to be uncapable of doing even small amount of reasonable thinking.
It seems to be rather difficult to cut that last 0.3l/100km, but maybe with mods it will be possible.