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Old 27-02-2007, 09:26 PM   #1
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What speed will a 300XS give ?

Today i bougt myself a Optimax 300XS it wil be mounted behind the 600XS i bought from Gav earlier this year , i am wondering what speed it wil give the boat and what cise prop i schould run on it , any idea's ??
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Old 27-02-2007, 09:44 PM   #2
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Its got to be somewhere in the 80's no sweat. What ratio is the box?
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Old 27-02-2007, 09:56 PM   #3
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there's one in Australia running 88 with a 300xs... .........
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Old 27-02-2007, 10:15 PM   #4
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Its got to be somewhere in the 80's no sweat. What ratio is the box?
Standard sportmaster box dont know accactly wich ratio it is .....
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Old 27-02-2007, 10:31 PM   #5
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Old 27-02-2007, 10:40 PM   #6
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Today i bougt myself a Optimax 300XS it wil be mounted behind the 600XS
That's gonna be one hell of a boat. Perfect combination.
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Old 27-02-2007, 10:42 PM   #7
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Thanks Mike
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Old 28-02-2007, 03:53 AM   #8
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Would like to fine out what one of them could achieve on a p25?
Problem is, I dont have a 25, and would'nt want to sink me 18!

(Probably around the 85 mark)
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Old 28-02-2007, 09:11 AM   #9
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Runnning close to 91-93 - i'm runnning +86 with my 250XS on a P21 hitting the revlimiter with a 28" Trophy.
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Old 28-02-2007, 09:57 AM   #10
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Quote:
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I'm runnning +86 with my 250XS on a P21 hitting the revlimiter with a 28" Trophy.

That seems quick! I know a regular 21 will run low 80's with a stock 2.5/260, but would assume that'd be a lighter motor than the XS.
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Old 28-02-2007, 10:02 AM   #11
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Would like to fine out what one of them could achieve on a p25?
Problem is, I dont have a 25, and would'nt want to sink me 18!

(Probably around the 85 mark)
Before I sold it my p25 with 300x would do 79.6 mph.
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Old 28-02-2007, 10:04 AM   #12
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Before I sold it my p25 with 300x would do 79.6 mph.
A very precise figure! How did you measure it?
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Old 28-02-2007, 10:06 AM   #13
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Runnning close to 91-93 - i'm runnning +86 with my 250XS on a P21 hitting the revlimiter with a 28" Trophy.
Thats funny Mr Insaine has a 26 trophy on p21 with 250xs set up by nick barch and its getting 78 mph on limiter. whats your box ratio.
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Old 28-02-2007, 10:15 AM   #14
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A very precise figure! How did you measure it?
Yes short answer (top speed held on gps) long answer well racing cars down slapton line, IE girl friend driving my car ( DO NOT TRY THIS ) I was worrying about my car instead of driving boat.
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Old 28-02-2007, 11:27 AM   #15
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That seems quick! I know a regular 21 will run low 80's with a stock 2.5/260, but would assume that'd be a lighter motor than the XS.
It feels quick too
Gps'ed by a Garmin Map60Csx

Quote:
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Thats funny Mr Insaine has a 26 trophy on p21 with 250xs set up by nick barch and its getting 78 mph on limiter. whats your box ratio.
1.75
I spoke to Mr. Insane about his setup as well
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Old 28-02-2007, 12:56 PM   #16
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Im puting 300x on p21 1.75 ratio and 25 raker. SHOULD BE INTERESTING. I,m hoping just over 90 mph.
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Old 28-02-2007, 06:04 PM   #17
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Old 28-02-2007, 06:21 PM   #18
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She's here
you animal...
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Old 28-02-2007, 06:32 PM   #19
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you are making me very goddam jealous!!! 300 gee gees!!
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Old 28-02-2007, 06:34 PM   #20
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you are making me very goddam jealous!!! 300 gee gees!!
Have you got product liability insurance Gav?
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