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Old 14 May 2005, 12:29   #1
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Although I have a good basic understanding of how a two stroke outboard works etc, I would like to get a bit more involved in the tuning of them. Without going back to school, how could i go about learning how to get the best performance from an engine. The basics of adjustments I could make if you like.

With the exception of using a GPS to see how fast the thing goes, what else can I use to monitor performance and the difference an adjustment has made? What can I use/add/do to make a difference to such things as revs and added power?

A few questions there but does anyone have any tips or advise or is there a good book or something that I could get hold of?

Thank you
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Old 14 May 2005, 12:36   #2
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I'd also be interested to know this. Also, what are the disadvantages of certain tuning techniques? I assume most of them shorten the life of the engine?

Kristian, are you Craig's co-pilot? If so, I met you at the show last weekend!

Cheers

Tim
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Old 14 May 2005, 16:06   #3
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A way of determining whether of not you are increasing or decreasing the performance of an outboard would be to set it up in a large test tank and open up to see how many revs your pulling at WOT, if after a performance adjustment the revs rise or drop you'll get a good idea if your increasing horsepower or not.


You'll need to know what your doing though as you're bound to reduce reliability and engine life if you don't stick to manufacturers recommended settings.

Don't think there is an outboard Dyno out there but I'm sure someone will enlighten me.

Andy
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Old 14 May 2005, 16:45   #4
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For info on performance and tuning I would put posts on Boatmad and Scream and Fly forums.
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Old 14 May 2005, 17:49   #5
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Originally Posted by Hightower
Don't think there is an outboard Dyno out there but I'm sure someone will enlighten me.
Consider yourself enlightened.
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Old 14 May 2005, 18:42   #6
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Land and Sea used to make one and I think they still do.

www.land-and-sea.com they used to make your Torqueshift propller Jeff

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Old 15 May 2005, 04:29   #7
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Tim - Hi, Yes, I am that Kris.

I have just been looking at some of your pictures on your website. Good stuff, It'll be good to get some good Zapcat pictured on there. Are you still going next weekend?
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Old 15 May 2005, 15:43   #8
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Kris, yes hopefully! see you there!

Cheers

Tim
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