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Old 14 August 2006, 09:34   #1
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Country: UK - England
Town: Torbay
Boat name: Marlin
Make: PBS humber 5.5
Length: 5m +
Engine: 115 optimax!!
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Chipping a diesel inboard

I have found losts of info for increasing the power of a D5 car engine from 163hp to anywhere from 185 - 200 hp. Does anyone have any experience of chipping the marine version D3.

I have found some companies on the internet but they are all foreign....

Also any problems I am likely to experience....pro's and con's all welcome

Any advice or uk suppliers would be gratefully recieved
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Old 14 August 2006, 11:49   #2
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Country: UK - Wales
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One thing to bear in mind - a car engine spends a lot less time at full thottle than a boat engine does.

Marine engines have different duty cycles - for example a commercial spec engine may be rated at 1/2 the power a leisure one would be.

If you increase the power short bursts would be ok but avoid prolonged high speed work.

Try these they MAY be able to help.

http://stores.ebay.co.uk/Dragon-Performance-U-K-Limited

Just found these people - look ideal - the power of Google!!!

http://www.dieselbob.co.uk/truckboattuning.shtml
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Old 15 August 2006, 16:53   #3
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any thoughts on this...

http://www.solware.co.uk/car-perform...php?make=Volvo
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Old 15 August 2006, 17:24   #4
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Those prices are plain stupid!!!
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Old 15 August 2006, 17:37   #5
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Country: UK - England
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Quote:
Originally Posted by codprawn
Those prices are plain stupid!!!
i was asking about the product....
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Old 16 August 2006, 12:15   #6
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Just looking at the website and the wording used they look like a right bunch of cowboys!
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Old 16 August 2006, 12:39   #7
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Quote:
Originally Posted by Bluestreak
Just looking at the website and the wording used they look like a right bunch of cowboys!

Agreed - the Diesel Bob link I posted looked far more sensible and the prices were a lot better as well.
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Old 16 August 2006, 13:06   #8
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I'm going for the diesel Bob one, i'll report back on how good it is etc
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Old 17 August 2006, 05:35   #9
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Colin, I'll be interested to read your findings.
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Old 17 August 2006, 08:13   #10
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Quote:
Originally Posted by jwalker
Colin, I'll be interested to read your findings.
I'm going to take her on a final test run before fitting, then fit (20 mins apparently) then test straight away, so ambient conditions are as close as possible. I'll do the test run in torbay where tidal flow speeds are relatively small, test runs in 2 directions.

i've always been suspicious about these things, but a 30 day no quibble return seems fair enough to me.
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