My Type 4 mechanic recommend throwing away my stock exhaust (which included a catalytic converter) in favor of a Bugpack header & muffler combo.  Not only in the interest of power, but apparently for lower cylinder head temps.

Since I added the CHT guage after the exhaust upgrade, I can't be too sure of this.

Outside temp during trip ~ 50 degs.
1 hour long trip.
Full loaded w/ family of four and full propane & water tanks.
Downshifting to third under 55mph.

Greg Potts <greg@pottsfamily.ca> wrote: Hi Mike,

Sounds excellent to me. With a load on my baywindow pulls 375-420 degrees. A vanagon has the same type4 engine as my bus, so 450 is tolerable, sustained driving above 475 is to be avoided.

Happy Trails,

Greg Potts
1973/74/77/79 Westfakia "Bob The Tomato
www.pottsfamily.ca

On 24-Dec-06, at 5:28 PM, Mike Rouby wrote:

Took my second camping trip in my 82 Westy ever.  This time around I had a CHT guage added.  On the highway it would be between 300 and 400 degs.  Never quite reaching 400 - hovering normally around 350 degs.  375 when climbing hills or driving at 70 mph down the HOV lane.

 Is that normal?  My Bug mechanic says high should be 375 for a Bug.

 Anyone getting similar results??

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