Today was testing day for my old tried and true Stihl 066 DP cover that has some small mods done to it to help flow and then a brand new DP cover with spark screen attached and then the Wojo 066 cover with spark screen.
Everything was set up with the old warrior DP cover on a woods ported 066, and then tested against those initial readings for comparison of a cover (without changing carb settings) that I know has kicked some azz in the past. The new DP cover was within 50 rpm at idle (lower) and within 100 rpm on (lower) max rpm. The Wojo cover puzzled me with readings of 300 rpm's (lower) at idle and then 200 rpm's (HIGHER) at max rpm's. So I would have to adjust my carb settings to run the wojo cover from the other 2 covers.
What do you tech guys or people in the know figure was going on with the wojo cover flow characteristics at idle and max wot.
Guess I will have to get a good cant and do some timed cuts on the video cam to see if there is any gains there to be made.
As far as a work cover it is a lot heavier duty built then the stock DP covers and I know they are being tested right now by a professional tree service that stated the crews that work for him destroy DP covers in a seasons time. Which for a homeowner like me is hard to believe that so much damage could result on the covers like that, but he is a man of his word.
Hope this helped someone out there and Thanks to Scott Wojo for providing the Wojo covers for testing. That 084 cover you made me is a jewel to have too for work and play, Thanks again.
Everything was set up with the old warrior DP cover on a woods ported 066, and then tested against those initial readings for comparison of a cover (without changing carb settings) that I know has kicked some azz in the past. The new DP cover was within 50 rpm at idle (lower) and within 100 rpm on (lower) max rpm. The Wojo cover puzzled me with readings of 300 rpm's (lower) at idle and then 200 rpm's (HIGHER) at max rpm's. So I would have to adjust my carb settings to run the wojo cover from the other 2 covers.
What do you tech guys or people in the know figure was going on with the wojo cover flow characteristics at idle and max wot.
Guess I will have to get a good cant and do some timed cuts on the video cam to see if there is any gains there to be made.
As far as a work cover it is a lot heavier duty built then the stock DP covers and I know they are being tested right now by a professional tree service that stated the crews that work for him destroy DP covers in a seasons time. Which for a homeowner like me is hard to believe that so much damage could result on the covers like that, but he is a man of his word.
Hope this helped someone out there and Thanks to Scott Wojo for providing the Wojo covers for testing. That 084 cover you made me is a jewel to have too for work and play, Thanks again.
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