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do I really need the shrouds on the engine?

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Kevin

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Feb 27, 2002, 9:37:09 PM2/27/02
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Hi there... I have a 1600 Dual port that Im putting in a dune buggy
(manx style). Right now Im doing some cosmetics on the engine (paint
and crome). Do I really need to have those pieces of sheet metal that
surround the cylinders? I guess they are to make sure any air
directed over the cylinders from the fan doesn't just dispurse...

I wouldn't ask if it was going back in a bug.. but since its going in
a dune buggy... and the engine is somewhat open to free air, are they
really needed. You see right now they are all rusty and I think the
engine would actually look a bit better asthetically if they weren't
put back on.

Thoughts? ANyone run it in a buggy without them?

Kevin.

John Willis

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Feb 27, 2002, 10:03:40 PM2/27/02
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Not if they want a running engine instead of a doorstop.

~~~~~~~~~~~~~~~~~~~~~~~~
John Willis
jdwi...@airmail.net

"Good taste is what pops up
when the imagination dies."
-Frank McCourt

America Holdcraft

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Feb 27, 2002, 10:07:58 PM2/27/02
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check out www.dunebuggy.com. These guys run custom plumbed fuel injection
and turbo chargers and I've never seen any in buggys with
the shrouds still on them.

"Kevin" <coug...@hotmail.com> wrote in message
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America Holdcraft

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Feb 27, 2002, 10:17:24 PM2/27/02
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okay so I lied, the link is www.dune-buggy.com/turbo/ and these guys
are using the shrouds but I didn't notice because they are either painted
or chromed and I don't have much experience with these motors.
Sorry if I mislead you. Check out the intake page for some cool custom
built intakes though and some chromed out and painted shrouds.

"Kevin" <coug...@hotmail.com> wrote in message
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sidewinder

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Feb 27, 2002, 10:41:40 PM2/27/02
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On 27 Feb 2002 18:37:09 -0800, coug...@hotmail.com (Kevin) wrote:


no expert here but heres what i was told when i ask that same question
: )

all the tin is important to keep the motor cool . at low speed the
cylinders need the tin to direct the fan air flow (really at any rpm
or speed ) anything left off decreases cooling capacity even on a
buggy

have you checked out air cooled net , larrys or any of the online
shops.... they have reasonably priced chrome shrouds and everything
you could want to dress out a motor

jim

"Never argue with an idiot.
They just bring you down to their level,
and beat you with experience."

Raymond T. Lowe

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Feb 28, 2002, 12:02:13 AM2/28/02
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Well, if you don't run any tin, I'll take the 23 minute spot.
Whose collecting the money?


Seriously; about the minimum you could get away with is
the fan housing, the upper cylinder pieces, and type 3 cooling
tin under the jugs. Don't expect long life...


RT
--
Remove "bogus" to reply by email


"Kevin" <coug...@hotmail.com> wrote in message
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T

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Feb 28, 2002, 12:45:02 AM2/28/02
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Howdy.

REALLY depends on the manufacturer... different models have different air
flows.

Our Street buggy has the cyl tins and fan tins.....

I'd check with other owners of the same model first... this one can be a
toughie since most of them only have a few hundred units and have been out
of production for a couple of years.

One of the things that really helps putting it in is ensuring that your carb
is accessable.

Hope to help.

T.

PS... don't forget to fix your pans from the donor... and bracem.


"Raymond T. Lowe" <rtl...@bogustelus.net> wrote in message
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Mel P.

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Feb 28, 2002, 1:30:09 PM2/28/02
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YES!

The tin directs air flow. The flow it's what takes the heat away.
It's like taking out the water pump in a WC. There's water in the system
but it's not moving/circulating...

--
Mel P.
77 'REVIVED' Bug & 70 Ghia Cab' in De-bondo stage
www.geocities.com/mpernice

PARTS FOR SALE: http://www.geocities.com/njvwclub/vwparts/homex.html


"Kevin" <coug...@hotmail.com> wrote in message
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John Stafford

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Feb 28, 2002, 4:12:57 PM2/28/02
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coug...@hotmail.com (Kevin) wrote in message news:<3d6c1e7c.02022...@posting.google.com>...

> Hi there... I have a 1600 Dual port that Im putting in a dune buggy
> (manx style). Right now Im doing some cosmetics on the engine (paint
> and crome). Do I really need to have those pieces of sheet metal that

> surround the cylinders? [...]

About the only vehicles that don't need them are airplanes with
outboard VW engines. See how that works.. big fan, lots of air. You
need 'em, Kevin.

(Though I do wonder about those motorcycles converted to use an ACVW
engine with the cylinder hanging out in the air, but .... naw, you
need 'em!)

Kevin

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Mar 1, 2002, 12:47:58 PM3/1/02
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Well ... I guess Ill buy a new set (since the old ones are rusted)...
but Im only going to put the ones on that go on top of the cylinder
...going to skip the front one behind the crank pully and any
underneath the cylinders (if they exist...).


I wonder if there is any way to install a temperature guage... I dont
know if they make any that would work for an aircooled.. The sending
unit would have to be installed in the engine block I suppose..
completely different set up the any WC system.


thanks for all the input everyone.. you have convinced me...

Kevin.

John Willis

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Mar 1, 2002, 4:07:28 PM3/1/02
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You will shorten the life of your engine if you elect to leave off the
tinware under the cylinders, the thermostat, or the thermostatically
controlled flaps.

If your rusty tinware is original, you won't find any that fits nearly
as well, so why not think about having it sandblasted and powder
coated or even go to the trouble of chroming it?

Many hours of research went into designing the airflow around the
aircooled VW engine. If you elect to re-engineere it then you have
compromised that design, but as has been said before, it is your ride,
do with it as you will.

A word to the wise: Do a search on Google in the RAMVA archives for
this exact subject, you will find all the reasons why and why not if
you take the time...

~~~~~~~~~~~~~~~~~~~~~~~~

TerryB

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Mar 1, 2002, 4:44:56 PM3/1/02
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You will need a Cylinder Head Temp Gauge.

http://www.vdona.com/onlinecatalogs/performance%20catalog/PerfCatHTML/perfca
tcockpit.html

The sensor mounts under the sparkplug of #3 cylinder. I got one on my bug,
works great.

--
Terry B
AKA VDUBBS
http://vdubbs64.tripod.com

64 Bug Rauchen
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