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Forum: Engines & props

06 August 2007, 20:42

Replies: 13

Prop Test

Views: 4,143

Posted By Bulligmore

I agree that 2% seems imposible but I am getting...

I agree that 2% seems imposible but I am getting the rpm from Lowrance it is linked up to the engine giving all data, rpm, lph, temp, volt, hours, fuel used, and more. It comes from the engine...

Forum: Engines & props

06 August 2007, 19:01

Replies: 13

Prop Test

Views: 4,143

Posted By Bulligmore

I downloaded the Prop Calculator, by roycruse,...

I downloaded the Prop Calculator, by roycruse, its very good. I still get the same answer that the slip is around 2% at 5400.

I have two GPS and the Lowrance is linked up to the engine giving all...

Forum: Engines & props

06 August 2007, 12:54

Replies: 13

Prop Test

Views: 4,143

Posted By Bulligmore

Thank you for your help. I have found sites with...

Thank you for your help. I have found sites with slip calculators and it seems that the props get more efficient at the high end of the rev band.

Were did you get the 22% slip from? The gear ratio...

Forum: Engines & props

06 August 2007, 09:32

Replies: 13

Prop Test

Views: 4,143

Posted By Bulligmore

I think I see what you mean, I am not using like...

I think I see what you mean, I am not using like for like.

3 X 16 X 21.5 R which Suzuki recomends for a DF 200
3 X 15 1/4 X 19 R which Suzuki recomends for a DF 150/175

The DF 200 full...

Forum: Engines & props

05 August 2007, 22:28

Replies: 13

Prop Test

Views: 4,143

Posted By Bulligmore

I will will check the props in the morning. They...

I will will check the props in the morning. They are both Suzuki props.

I have another which I got from Steel Devolments which I should also try, a 20".

I did not think about the slip.

Thank...

Forum: Engines & props

05 August 2007, 16:51

Replies: 13

Prop Test

Views: 4,143

Posted By Bulligmore

Now you both have me confused! 1) The test...

Now you both have me confused!

1) The test was in a lake with trim set the same, 3 up, cross wind, 15 L less fuel for the 19"
2) I thought it was better have the lower revs of 20" for the same...

Forum: Engines & props

05 August 2007, 13:02

Replies: 13

Prop Test

Views: 4,143

Posted By Bulligmore

Prop Test

I have a 21" prop on a Suzuki 200hp, max revs for the engine is 6,000 rpm, I could only get the engine to 5,400 rpm so contacted the dealer. We both thought a smaller 19" prop would perform better...

Showing results 1 to 7 of 7

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