Date: Thu, 12 Nov 1998 01:43:52 EST
Reply-To: Modl6971@AOL.COM
Sender: Vanagon Mailing List <vanagon@vanagon.com>
From: Michael Modl <Modl6971@AOL.COM>
Subject: Re: 5-cylinder conversion mail list (1)
Content-type: text/plain; charset=US-ASCII
In a message dated 11/10/98 2:58:02 AM Pacific Standard Time,
midwesty@midwest.net writes:
<< Hi Michael,
I have not been following this 5 cylinder Audi very close but find it
interesting. I have always wanted more power even in the 60s when I drove
cars with 383 and 440 cid engines with over 300 tire burning hp, dam that
was fun. First the transistor that pulses the injectors would handle a
fifth injector with no problem. However the van digifant pulses the the
injectors once for every 2 hall pulses. I think the i5 may run a little
rich. In 4 revolutions of the engine the 4 cylinder hall unit would provide
8 coil pulses and the digifant would inject fuel 4 times. With a 5
cylinder 4 revolutions would have 10 hall / coil pulses and 5 injector
pulses. Lowering the fuel pressure might solve the rich problem and the
oxygen sensor would most likely handle it once close loop is entered. My
2.1L cuts out at 5400 rpm so a 5 cylinder would cut out at about 4300. The
ignition maps for the boxer may be different than the i5. A better
digifant for the i5 may be one from an i4 like the later national late
model fox. They are very similar except for the coil module and would have
ignition maps for an inline engine and have a higher engine cutout.
I can completely rebuild and balance a 2.1L, install new heads,
bearings, etc for $1500 and have a reliable van. I am in the process of
doing one now. What is the going rate for a i5 transplant? Not that I
wouldn't love to have more power.
Darrell
>>
Hi Darrel, you definitely brought up a good point. Using the Audi fuel
injection system looks like the way to go. However I'm looking into the cost
of a Eurovan intake manifold, ECU and wire harness to see what the cost would
be, I'm probably wasting my time though because I have a feeling that it'll be
expensive. The person that you need to contact is Ken at KENWILFY@aol.com
He will know the costs involved for the 5 cyl conversion.
There's been a lot of talk on the Eurospec engine, but I'd rather have the 5
cyl conversion with a lot HP's and torque. See ya later. Michael
87 syncro
87 quattro
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