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Old 20 May 2004, 17:11   #1
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Balistic 7.8

Does any one know what the max hp you can put on the back of one of these 7.8s i will put twin rig 4/s Suzuki but dont no what hp? Does any one have one set up with twins, if so what engines, hp and what does it go like??
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Old 20 May 2004, 17:43   #2
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Quote:
Originally Posted by nick wood
Does any one know what the max hp you can put on the back of one of these 7.8s i will put twin rig 4/s Suzuki but dont no what hp? Does any one have one set up with twins, if so what engines, hp and what does it go like??
According to the Ballistic web site it will take a single 300hp or twin 250s. I've tried one with twin 225s and it was pretty quick!

John
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Old 20 May 2004, 17:55   #3
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ya cheers for that, might go for 225s or 250s not sure, 500hp ya
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Old 21 May 2004, 14:49   #4
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any one else been on a 7.8? Has enyone seen a report on them?
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Old 21 May 2004, 15:07   #5
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I'm fairly certain that RIB International did a test on them some time ago...

IIRC it was a very positive review.
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Old 21 May 2004, 15:10   #6
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Whoops, sorry that was me.


Have a look here: http://www.ribmagazine.com/boat%20te...llistic7.8.htm

Anyway Nick, never mind about these credibility points that people keep asking for... can I just come for a test ride once you've got the beast rigged and set up?

Apparently the link won't work 'cos you have to enter your name and email address before you're allowed access. So go to http://www.ribmagazine.com and expand the menus until you can see "reading room" then enter your details. It's Under "Ballistic 7.8" (Obviously )
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Old 21 May 2004, 15:31   #7
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Old 24 May 2004, 05:03   #8
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Quote:
Originally Posted by nick wood
Does any one know what the max hp you can put on the back of one of these 7.8s i will put twin rig 4/s Suzuki but dont no what hp? Does any one have one set up with twins, if so what engines, hp and what does it go like??

Hi

According to the new CE Marking of the Balistic 7,8 it will take a single 225 HP

CE marking rules for boats under 8 meters

(Length * Width * 10 - 33) * 1,36 = HP

(7,8 * 2,54 * 10 - 33) * 1,36 = 224,56

Taking a twin outboard installation the CE marking is very strict, 225 / 2 = 112,5 HP pr. engine

I do belive you could put a 300 HP on the back of a balistic 7,8, but you would be breaking to ce marking, and there by you insurance might not cover the boat.

Regards
Rene
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Old 29 May 2004, 17:24   #9
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Balistic 7.8

Ya That CE marking is a pain, but only if you live in England, if like me you live in the Channel Islands you do not have to have items CE marked or approved , this limits me when i want to sell but oh well dont want to do that for a bit.
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Old 30 May 2004, 06:27   #10
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Quote:
Originally Posted by Rene
Hi

According to the new CE Marking of the Balistic 7,8 it will take a single 225 HP

CE marking rules for boats under 8 meters

(Length * Width * 10 - 33) * 1,36 = HP

(7,8 * 2,54 * 10 - 33) * 1,36 = 224,56

Taking a twin outboard installation the CE marking is very strict, 225 / 2 = 112,5 HP pr. engine

I do belive you could put a 300 HP on the back of a balistic 7,8, but you would be breaking to ce marking, and there by you insurance might not cover the boat.

Regards
Rene
All of the above is from an ISO standard for RIBs and is correct. However, not quoted above is the bit that refers to another ISO standard for determining maximum power based upon how the boat handles. If it can be shown that the boat can perform a 90 degree turn, at full speed, within a specified distance (based upon boat length and speed) then that power used in the handling test can be used irrespective of the formula quoted above.

In addition, if the boat cannot pass the handling test at full speed, but can do so at a reduced speed then it is acceptable for the manufacturer to affix a notice at the helm warning the operator that handling may be less than perfect at speeds above xx knots. Can still specify the larger maximum horsepower.

I hope this may be of use to those of you building "quick" RIBs !

Duncan
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