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Janspeed exhaust
Posted: Sun Oct 28, 2012 10:54 am
by Spud
Hey everyone I have quick question, i have just brought a full janspeed exhaust for my vitara but I forgot to check if it will fit mine I have a 1.6 8v and the listing just said it was for a 1.6 so my question is does the 8v and 16v engines have the same manifold size and exhaust fitment??
Re: Janspeed exhaust
Posted: Sun Oct 28, 2012 1:21 pm
by Darrell
I'm sorry to say that I believe there quite different.
Diagram time
Re: Janspeed exhaust
Posted: Sun Oct 28, 2012 1:38 pm
by Darrell
You may be lucky as I can't find a Janspeed system for the 16v, so hopefully they only made it for the 8v ??????????
Re: Janspeed exhaust
Posted: Sun Oct 28, 2012 3:33 pm
by Edweird
Looking at the manifolds, I'd say that the 16 valve manifold is much better port matched and looks like it's a higher flow manifold in general so probably wouldn't need replacing unless it was for a stupidly tuned engine, in which case the manifold would cost a fortune.
The 8 valve manifold on the other hand is far from port matched and would have bad flow characteristics for cylinders 1 and 4 so I can see that being replaced for a better one just for general use.