Czy ktos może tak w skrócie powiedzieć dlaczego w pewnym okresie zmieniono w głowicach typ4 kształ kanałów wydechowych i czym było to uzasadnione? Oraz które sa lepsze ?
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Info, jakie znalazłem na anglojęzycznej stronie :
"The "Vanagon 2.0" head, called this because it was used almost exclusively on the 80-83 Vanagons. It was also used on the '79 Transporter, but most still refer to it as the Vanagon head. The Vanagon head is basically identical to the Bus 2.0 head. The noticable difference are the exhaust ports.
VW did not change the chamber shape. It could be because they didn't change the valves and that the engine was pretty much identical.
The exhaust port design was changed with the '79 Transporter to this type of design. It was this design change that makes the Vanagon head different the from the earlier Bus 2.0.
One reason for this change in exhaust port design was for installing exhaust manifolds. The earlier ports utiliized a copper ring that had to sit on top of the manifold, whereas this new design used a conventional gasket that didn't slip off when you mated the two pieces.
Because of the exhaust port change, earlier exhaust systems can not be retrofitted to this head. There are some aftermarket exhausts for this head, but the selection is very limited. Hopefully as the Type 4 gains popularity, more exhausts will be made with these ports in mind. "
VW 1200 1968r. , VW 1600TL 1971r. , VW 1500S 1964 r.
Garbiarnia4z Wami od 2003 roku
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