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Old 20 July 2004, 09:01   #1
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MERCURY PROMAX engines

hopefully my final question before i get round to getting a bigger rib

First thanks to all the people who gave me info on hardstanding, i have found somewhere not the chespest option but the best for me.

Anyway, i have seen a nice Scorpion with a 300 Promax engine. my question is are they good engines and being a promax am i in for some big bills?
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Old 20 July 2004, 12:31   #2
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Excellent motors, but is it a 300 (275hp ish) or a 300X (200hp ish) version. Either way they are good performers, although they have a bit of a thirst for both oil and petrol!
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Old 20 July 2004, 12:38   #3
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Is this the boat? If it is, it looks a cracker, caught my eye a month ago.

Quote:
Scorpion 7.5m 1999, 1 x Mercury 300hp Promax 2000. Vhf, Lowrance Global Map, 2 x 2 jockey seats with wing backs, aft bench seat, double A frame, twin axle trailer, covers etc. Just serviced and antifouled and ready to go. Stunning.

24,950 South Coast
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Old 20 July 2004, 15:23   #4
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Boat name: DynaMoHumm/ SRV/deja
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sounds good to me!

where are you going to moor by the way?
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Old 20 July 2004, 16:38   #5
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Quote:
Originally Posted by Dirk Diggler
Excellent motors, but is it a 300 (275hp ish) or a 300X (200hp ish) version. Either way they are good performers, although they have a bit of a thirst for both oil and petrol!
Feck, the 300x isn't much cop then.
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Old 20 July 2004, 17:02   #6
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Promax 300X

I have talked with Mercury Marine staff directly about 300 hp Promax engines. They are good engines, but you have to remember that they are built for race. No spare parts are available in stock, you have to order nearly everything in beforehand (or swear and cry!!) and it takes weeks to wait. The cost for the engine is around 50% higher than 250 hp ordinary EFI, but the engines gives actually 330 hp out in factory test bench before shipping to customer. 300 hp is just a model name and give ball-park figure about performance. Basically Promax 300X is just like 250 EFI, but is much highly tuned. In order to achieve long life, you have to drive first 10-20 hours extremely carefully strictly according to rpm limits given by factory, but after that Promax should work like any other outboard what comes to failure rate and suitability to pleasure use.

Anyway, Promax 300X is a good engine, but think twice before buying it. Do you really need that much power? Isn't 250 EFI Merc (which gives actually around 270 hp) enough? Can you afford to buy spare parts in stock by yourself or even spare engine(s)? The last 50 hp cost 50% more, so are few extra knots just worth it? Most people think 250 hp is enough, but for real speed enthusiasts Promax is the choise.
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Old 21 July 2004, 02:50   #7
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Originally Posted by MadMat
Feck, the 300x isn't much cop then.
Oops, it should have read 325hp, must get a new keyboard!
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Old 21 July 2004, 07:43   #8
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Promax

Quote:
Originally Posted by Jimbob
hopefully my final question before i get round to getting a bigger rib

First thanks to all the people who gave me info on hardstanding, i have found somewhere not the chespest option but the best for me.

Anyway, i have seen a nice Scorpion with a 300 Promax engine. my question is are they good engines and being a promax am i in for some big bills?
Jimbob,

I saw that Scorpion advertised and it does look like a cracking boat but just a bit too expensive for my budget.

You might like to speak with Marinautic in Poole - they, I believe, are a/the Mercury high performance dealers for the UK.
Or could try Dave Crawford Marine in Lymington.

It might be worth asking about the suitability of leaving the boat/engine afloat (if this is what you intend to do) as some of the components may be a high strength steel rather than stainless.

I hope this is of use.

Regards



Duncan
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Old 21 July 2004, 08:11   #9
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Jimbob, where did you go for? Looking for something similar myself
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Old 21 July 2004, 10:47   #10
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Thansk for all the comments

SWGINN - yes that is the boat
J LANNG, i found the best two places to go to find boats (i am sure other poeple will know otheres ) are

1)www.boats-for-sale.com or .co.uk
2)www.lymingtonmarinesales.co.uk - thats where i find the best scorpions

P.S its still available as i cannot make my mind up at present, trying to lever open the wallet

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