Engine choices

[Rabbit16v@attbi.com (Rabbit16v)]

I actually didn't know it was all about turboing.  Thought he just wanted
something better than the motor that is in there.  Anyway, I would like to
answer your question though.  The difference between an 8v and 16v is the
flow.  What I mean by this is that two valves per cylinder openning at the
same time on a crossflow head increases flow.  The 1.8T is also a crossflow
head and a multi-valve head.  The next turbo motor VW plans to make is also
a multi-valve turbo.  So, it is a combination of experience, opinion, and
watching to see what the manufacturers do.  HTH!

Dave


> I could see why you would think my logic is shaky given what I wrote in
the
> last message, but I think you got in on the thread a bit late. I had
> suggested in the first email I sent to Mike to use the JH to go turbo.
>
> If we're talking about turbo'ing an 8v vs. 16v in terms of difficulty, the
> 8v again wins by a small margin. What I really don't know is how much 16
> valves vs. 8 could improve a forced induction setup...
>
> JT
>
>
> > > See previous email about going with the JH 1.8 8v - I'm telling you -
> > it'll
> > > the be "cheapest" route...
> >
> > Cheapest route, maybe, but best, I beg to differ.  I know, I like 16v
> motors
> > but if you look at the hp gain for the stock versions (90hp compared to
> > 123hp) then you will see that it is about a 35% increase in hp over the
> 90hp
> > motor.  That is more that 1/3rd the power for what, wiring in a knock
> sensor
> > system?  That's the toughest part about the 16v into an 8v car unless
you
> > swap the entire FI system.  HTH!
> >
> > Dave
> >
> >
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