Date: Sat, 15 Sep 2001 21:11:18 -0700
Reply-To: Rennie Wible <volksdragon@EARTHLINK.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Rennie Wible <volksdragon@EARTHLINK.NET>
Subject: Re: Breakthrough for TDI conversions!
Content-Type: text/plain; charset=us-ascii
VW has a few of (possibly) upcoming TDIs roaming the streets of So Cal.
I've routinely seen a woman (with kids) driving a B-5 (98-00) Passat,
TDI, 4-motion, strangely enough also manual trans. The VW rep said they
haven't passed US laws yet.
Also, I have been getting orders from a very large local turbo company
that has been testing bigger turbos for the upcoming TDI. They should
overcome the 2.0 output without even trying to hard.
Rennie
VolksDragon@earthlink.net
Peyton Cramer VW
Los Angeles
"Karl M." wrote:
>
> TDI does not equal computer controlled, only Turbo Direct Injection. There
> are TDIs around the world that are totally mechanically controlled. Another
> thing to consider is that power gains are more easily found in a
> mechanically-controlled system--no computer trying to override higher boost
> levels or the adding of additional fuel to make said boost. Yes, the
> computerized system refines the powerband, but at the cost of complexity.
> Wonder why VW is now going to a more mechanical unit-injection system in the
> most recent higher-power TDIs? Hmmm....
>
> Karl Mullendore
> Westy Ventures
> 1987 Syncro Westfalia 1.9TD
>
> ----- Original Message -----
> From: Michael Sullivan <sullivan@OpenMarket.com>
>
> > Dear Vanagon/TDI Nuts,
> >
> > There are two things that make a TDI a TDI:
> > 1.) Direct Injection
> > This is where most of the horsepower and fuel efficiency gains come
> from
> > 2.) Computer Control of the system
> > VW refines the system to reduce polution and make minor gains in power
> > and fuel efficiency
> >
> > In theory then, one should be able to achieve near-TDI power with a TDI
> > motor and mechanical injection as most of the gains come from the fact
> that
> > the fuel is injected under extreme pressure directly into the cylinder (as
> > opposed to a pre-chamber).
> >
> > On the the other hand, getting the wiring right isn't that hard a problem.
> > Took me about 6 hours to convert/cleanup a stock Jetta TDI wiring harness
> to
> > work with the Vanagon (I also used a HA Project Vanagon/TDI interface to
> > make it easier). Interesting observation: being thorough with my
> voltmeter,
> > I discovered a few blatant errors in the Bentley Jetta/TDI wiring diagram.
> >
> > For me, having a "stock" TDI is comforting!!!
> > (chipping will come later)
> >
> > MJS
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