Re: 2.1L

[jonas miller <sjmill@erols.com>]

iwas refering to a 2.0L block not hte tall block but a short block..i
personally am using a 2.0L out of a 91 passat and overboring it 3
times...then i take 83.5mm pistons..so that way if i screw this up io
can go to an 83.75 or 84.00 which would be the hioghet i would go..then
i am taking a 95.5 mm crank and stock connecting rods..with a custom
proted head 268 shrick internal and external adjustable sprokkets and
away i gooooooo
jonas
if i were to use a tall block i could go the way of the 2.2 but i am
gonna start with a small 2.1 L powerplant.lol

Owen wrote:
> 
> Well, if VW can call their 1980cc or whatever engine a 2.0L, then i think
> you can call a 2080cc a 2.1L.  I asume Jonas, that you are talking about
> using just a stock 1.8L to get a 2.1L.  What i am talking about is starting
> with the 2L bubble block.
> 
>  Here is some info from a while back on the A2 16v list.
> 
> ----------------------------
> <<<<Subject: Re: 2.2 Liter 16v!?
> >I remember talking to Velocity many moons ago and they do some pretty
> >'out there' things with their engines...
> 
> In who's opinion.  We just safely take things a little further.
> 
> >like 86mm pistons(over 2.2l>with a 95.5 crank!).
> 
> They were 85.5mm and the were used by an employee.  They were never anything
> we even considered selling to the public.
> 
> >  BTW, when I asked them if they thought forged
> >pistons were a good idea for a daily driver, they said that forged
> >piston technology had come a long way and the tolerances are much
> >better (at startup temps).
> 
> I never would do it in a standard VW 4 cylinder block, especially not for
> street use.
> 
> >IMHO, anyone who thinks 86mm is a
> >reasonable thing to do (no matter how much ultrasonic testing is done)
> >is a little bit wacko.
> 
> Probably.  When you find someone like that, let me know, I think I can get a
> 110mm crank. ; )Mark>>
> 
> >86mm??? Are you sure?  The most you can safely bore a 16V block to is
> 84.5mm.
> >That leaves just over 3mm of wall between cylinders.And?
> >Do the math and you'll see
> >that just won't work...  Why?>>
> 
> Perhaps I didn't make myself clear.  If an 84.5mm bore leaves only 3mm of
> cylinder wall, an 86mm bore will leave close to *no* cylinder wall.  1.5mm
> increase in bore means 3mm total material removed between cylinders, which
> is
> all you have left after an 84.5mm bore.  Sorry for being unclear.
> 
> <<84.5mm bore with a 92.8mm (stock 2.0l) stroke>yields 2080cc of
> displacement.
> 
> Yep! (Well 2082cc to be a little more accurate) What about 84.5 X
> 95.5(2142cc)
>   We're currently building one for a customer
> >using Wiseco forged true 11:1 pistons (nice design, offset wrist pin).
> 
> Wiseco in a STREET MOTOR?!?!?!  What clearance?>>
> 
> Who said street motor?  .004 clearances, not huge but it'll knock a little
> on
> start-up.
> 
> < Didn't
> >C&R of the UK build a 2.2l from a 2.0l 16V short (vs tall) block?  I
> remember
> >it used a monster long stroke that required oil pump shaft clearancing.  I
> >think they called the "Destroyer" or something.
> 
> 83mm bore X 99mm stroke (Oettinger forged crank.  No longer available)
> Jeremy WolfVelocity Sport Tuning, Inc.>>
> 
> Thanks for the specs.Regards,Todd
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> 
> >for a 2.1 you would need a bigger crank..a tdi crank   95.5mm with a
> >83.5 or 83.75mm piston
> >jonas
> >
> >Owen wrote:
> >>
> >> I looked into this a while back, and the most you can get out of a 2.0L
> >> block is about 2.1L just by boring the cylinders and going with bigger
> >> pistons.  it leaves very little metal between the cylinders, so you can
> get
> >> cooling probs and stuff.  if you want a 2.2L (who doesn't) you have to go
> >> with a bigger crank too.
> >>
> >>   HTH
> >>
> >> Owen
> >> 87 Scirocco 16v #38 CD-SS.
> >> http://www.geocities.com/MotorCity/Garage/1571
> >>
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