16v or 8v turbo?

[pbureau@attbi.com (ATS - Patrick Bureau)]

heheh why his first step towards a 8v turbo engine is to get a 3A block to
make it a 2L engine 8v then boost it, and have a lower totrque zone and have
more power than the 16v has stock :)

==========================================
ATS - Patrick Bureau
1985 8v **Planning 3A/JH  Upgrade**
1988 16v ** Euro Project/maybe 8v **
Web Site : http://longcoeur.com/scirocco


=>-----Original Message-----
=>From: scirocco-l-admin@scirocco.org
=>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Allyn
=>Sent: Saturday, June 22, 2002 11:43 AM
=>To: Jan Folkson; Larry; Lil B 959; scirocco list
=>Subject: Re: 16v or 8v turbo?
=>
=>
=>kinda, the 16v makes more power than the 8v (no boost), so it
=>takes a slightly longer time for the
=>8v to reach the same power output as the 16v (both starting at no
=>boost). this can me somewhat
=>compensated for by proper turbo selection, but in the end, the
=>cost of getting the higher boost is a
=>bit more time for turbo lag.
=>Al
=>
=>Allyn Malventano, ETC(SS), USN
=>87 Rieger GTO Scirocco 16v (daily driver, 180k, rocco #6)
=>86 Kamei Twin 16V Turbo Scirocco GTX ('it has begun', rocco #7)
=>86.5 Occo 16v Trailer (dotting 'i's across the country, rocco #8)
=>87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles,
=>original clutch, driveshafts, wheels :)
=>
=>----- Original Message -----
=>From: "Jan Folkson" <jfolkson@optonline.net>
=>To: "Allyn" <amalventano1@comcast.net>; "Larry"
=><rocco16v@netzero.com>; "Lil B 959"
=><lilb959@hotmail.com>; "scirocco list" <scirocco-l@scirocco.org>
=>Sent: Saturday, June 22, 2002 12:38 PM
=>Subject: Re: 16v or 8v turbo?
=>
=>
=>> > okok, heres what i mean.
=>> >   by running lower c/r, you can run higher boost, meaning the
=>engine draws in
=>> > more (mass) of air
=>> > on each stroke. the lower c/r means lower multiplication of
=>the absolute
=>> > pressure coming in, so
=>> > since the lower c/r engine is multiplying by a lower factor,
=>there is a lower
=>> > peak cylinder pressure
=>> > in the lower c/r engine (with the same level of boost). the
=>peak cylinder
=>> > pressure is usually the
=>> > limiting factor.
=>> >   a (stock) 16v with ~5 lbs boost has approx the same peak
=>pressure as an 8v
=>> > with ~15 lbs boost.
=>> > this is where the ~5 lbs limit comes from for stock 16v
=>turbos. yes the 16v
=>> > may be flowing better,
=>> > but the 8v is still getting much more mass of air (and fuel)
=>in the cylinder
=>> > per stroke (due to the
=>> > much higher intake pressure).
=>>
=>> Doesn't lowering the c/r make for more of a lag before the
=>turbo kicks in
=>> though.
=>>
=>>
=>> - Jan Folkson  http://www.janfolkson.com
=>> NYC
=>>
=>> '86 16V
=>> '99 Passat GLS 1.8t
=>> '00 Beetle GLX 1.8t
=>>
=>> "Gravity, it's not just a good idea...it's the law!"
=>>
=>
=>
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