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Old 19-03-2009, 07:33 PM   #1
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speed

does any1 know what speed my ring 20 with a 225 suzuki and 21p prop should be doing ? its reading 58 mph ?. cheers !!!
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Old 20-03-2009, 08:54 PM   #2
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The Sort Of Speed You Should Get From A Shitty Engine Like That Would Be About 45 Mph If You Are Lucky Stick A Decent Engine On It Like A Top End Merc Or Mariner Even A Seagull Would Be Better
Doz This Help...
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Old 20-03-2009, 09:15 PM   #3
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Chick, that's a stupid answer. Bling, what's your rpm at that speed, how high is the motor, what type of prop ?
Do you want just top end ? Tell us more
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Old 20-03-2009, 09:21 PM   #4
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Quote:
Originally Posted by chickyboo View Post
The Sort Of Speed You Should Get From A Shitty Engine Like That Would Be About 45 Mph If You Are Lucky Stick A Decent Engine On It Like A Top End Merc Or Mariner Even A Seagull Would Be Better
Doz This Help...
Nice! Please clear off.
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Old 20-03-2009, 09:24 PM   #5
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Quote:
Originally Posted by bling ring View Post
does any1 know what speed my ring 20 with a 225 suzuki and 21p prop should be doing ? its reading 58 mph ?. cheers !!!
what is it reving at? when i had a ring 20 with a mer 200 2.5 lazer 2 23p i was pulling 71.1. But that was reving the nuts off it.
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Old 21-03-2009, 12:40 PM   #6
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If you could post your gear box ratio i have a formula for working out theoretical speed. it has always been within a couple of mph.

All the best
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Old 21-03-2009, 12:47 PM   #7
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just worked it out, if you are at 5500 rpm and a 1.86 gear ratio and it comes out at 58.8mph.

please let us know
Rpm and gears and then i'll try again.
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Old 21-03-2009, 12:52 PM   #8
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merlin express?
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Old 21-03-2009, 01:23 PM   #9
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Quote:
Originally Posted by chickyboo View Post
The Sort Of Speed You Should Get From A Shitty Engine Like That Would Be About 45 Mph If You Are Lucky Stick A Decent Engine On It Like A Top End Merc Or Mariner Even A Seagull Would Be Better
Doz This Help...
yeah thanks ha take it you dont like suzuki engines ha !!!
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Old 21-03-2009, 01:31 PM   #10
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Quote:
Originally Posted by Renegade View Post
just worked it out, if you are at 5500 rpm and a 1.86 gear ratio and it comes out at 58.8mph.

please let us know
Rpm and gears and then i'll try again.
that sounds about right then not to sure about gear ratios ? i have been thinking of getting a merc 200/225 do you know anywhere that fits them ? cheers !
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Old 21-03-2009, 01:34 PM   #11
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Quote:
Originally Posted by Pearny View Post
what is it reving at? when i had a ring 20 with a mer 200 2.5 lazer 2 23p i was pulling 71.1. But that was reving the nuts off it.
its reving at 5500 rpm do you know anywhere that would fit me a merc 200/225 need more speed ! cheers !
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Old 21-03-2009, 01:52 PM   #12
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I would have thought that with 225hp you would be getting closer to 70 mph with the right prop.

My 21 with 200 opti runs around 65ish flat out.
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Old 22-03-2009, 09:37 AM   #13
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Clive jones is in charlton. he may be one of the nearer people to you.
Phantomuk.co.uk
He may be able to help you with a motor too.
He does my boat work.
I took the liberty of loking up your engine spec and it showed a 1:86 gear ratio.
A merc will push you faster as they are alot lighter.
A 23/24p prop would do nicely, i would say a 4 blade too.

Remember that the pitch rate of a prop is all theoretical. set up means everything.
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Old 22-03-2009, 01:03 PM   #14
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Hi, there used to be a white ring 20 martini with a 200 suzuki in hayling island, if i see him i will find out what he used to run, Del
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Old 22-03-2009, 04:12 PM   #15
Cracker jack
 
Country: england
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Quote:
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Hi, there used to be a white ring 20 martini with a 200 suzuki in hayling island, if i see him i will find out what he used to run, Del
i know the guy who owns it his names terry hes still got it i havent got his number i will see him next time im there if you see him let me know anyway cheers dell !!!
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Old 22-03-2009, 06:30 PM   #16
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Old 22-03-2009, 07:05 PM   #17
Cracker jack
 
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cheers ive asked him waitng for a reply. bling !
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Old 02-04-2009, 02:09 AM   #18
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There's a Shetland Signature here with the same motor that runs 70mph...
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Old 08-04-2009, 06:30 PM   #19
Cracker jack
 
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There's a Shetland Signature here with the same motor that runs 70mph...
do you know what prop its got on it mine 21.thanks bling
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Old 09-04-2009, 08:31 PM   #20
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do you know what prop its got on it mine 21.thanks bling
Who's mine 21?
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