Re: Anyone have a 2117cc 16V

["Randy B" <sirocco@telocity.com>]

Chris,
Thanks for the info :)

Hmmm.....
But wouldn't the taller block create slower piston speed and therfore less
power?
My basic understanding is that with a smaller angle (piston further from the
centerline of crank) the speed of the piston in it's down stroke, at 90*,
and it's upstroke, at 270* would be slower, pulling in less air (or pulling
it in at a slower velocity). There would also be less compression because
less air is being compressed.
Am I even remotely correct in these assumptions???????

The taller block would be smoother (probably why VW went to the taller
setup) because of less side-load on the pistons and smaller angles for the
movement of the 'system' to overcome. Again does this make sense?????

Also, isn't rev-ability mainly a function of airflow and/or port velocity?

Thanks
Randy (wishing he had paid attention in physics class)



> Randy I have been curious about the same type motor. I have been talking
to
> a couple people from Velocity sport tuning... they have been a lot of help
> to me in the past, and I have found them to have a lot of truth to what
they
> say. The BS is at a minimum. They recommend the use of a tall block from
the
> later 2.0 8v crossflow motors that seemed to have taken place of the 16v
> 2.0.
> This would be:
>
> -95.5 crank (lightening of course, possible knife edging)
> -160mm connecting rods (check the EIP website they have chromoly,
>                         forged, and titanium)
> -pistons? I havn't gone that far, but for this application I guess they
>                         would custom... again Velocity has them.
> As far as the ratio of bore to stroke... I was told by Velocity that using
> the other older block(9A) from the later 2.0 16v motors of the early 90's
> you wouldn't be able to spool all the way up to red line... how true? I
> havn't had a chance to go any further with it... though they said they
have
> done the combination 95.5/160mm rods/Bore?(didn't ask)/tall block from a
2.0
> 8v, and had great success with it working ridiculously well through the
> whole power band... sounds good to me... $$$ value?? maybe it would be
> cheaper to go to a turbo?
>
> well I hope that helps you in your quest for power/speed...
> chris jevens
>
> >From: "Randy B" <sirocco@telocity.com>
> >To: <scirocco-l@scirocco.org>
> >Subject: Anyone have a 2117cc 16V
> >Date: Wed, 31 Oct 2001 16:45:09 -0800
> >
> >Has anyone built, or know someone who has, a 2117cc 16V (or 8V for that
> >matter).
> >I would like to find someone who has tried this succesfully or
unsucesfully
> >and why.
> >
> >JE (other?) 84mm forged pistons, Carillo (other?) forged rods, and 95.5mm
> >TDI forged crank (knife-edged to lighten) in a 9A block (16V)
> >
> >I am considering finding a 90-92 GTI and doing a complete
> >motor/fuel/motronic swap.
> >It seems if I can:
> >A. B. Have the head flowed and ported as needed for the proper port
> >velocity.
> >C. Match th correct cams
> >D. Run ~11.2:1 compression
> >
> >I could have a monster of a motor with good streetability.
> >
> >What do you all think, need some advice here :)
> >
> >Thanks,
> >Randy
> >81 Scirocco S "Mars" - needs a bigger motor
> >81 Scirocco S "Cosmos" - will get the TT 1847cc 8V for daily duties
> >
> >
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