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18'' donzi, 500 hp possilbe to run 75??

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18'' donzi, 500 hp possilbe to run 75??

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Old 12-20-2011, 06:47 PM
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Originally Posted by Fenderjack
What kinda power do you think that 83 is making?

John jr
350 at the crank.
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Old 12-20-2011, 07:13 PM
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What is different from the x18 than a18.Also the 383 with the bravo will be slower than a blackhawk with the same hp.surface drive compared to a bravo none.
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Old 12-20-2011, 08:36 PM
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Originally Posted by Scott B
X-18, TRS with mild 383 (est @ 400 - 410 hp) runs true 73 all day long, 76 - 77 with Mirage plus...


BUT, X-18's are faster than regular 18's...
is nabbers done with yours yet
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Old 12-23-2011, 08:16 PM
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A friend had a 500 TRS 22c that ran low 80s gps so the 18 should be good to go I ran an 18 454 400hp volvo at 75 on the nordscog so it was probably 73 really nothing fancy but the hill prop, external steering and hydro nosecone.
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Old 12-24-2011, 01:22 PM
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Originally Posted by craigdskilling
What is different from the x18 than a18.
Boat for boat , engine for engine there is no difference .. it's just the twisted humor of those Donzi.net guys ..

(you have to be there to get it .. )
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Old 12-25-2011, 08:35 PM
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Originally Posted by madbouyz
Boat for boat , engine for engine there is no difference .. it's just the twisted humor of those Donzi.net guys ..

(you have to be there to get it .. )
Not really, there are other places our humor is just as twisted, maybe even more so

You should see what we did to Santa's sleigh....
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Old 12-25-2011, 09:29 PM
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My best friend has a classic closed bow ITS jacked up x dimension and a huge motor with a pumper on it. well over a 100 funniest fn ride ever.
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Old 01-02-2012, 04:34 PM
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Originally Posted by jerryhaney
My best friend has a classic closed bow ITS jacked up x dimension and a huge motor with a pumper on it. well over a 100 funniest fn ride ever.

Wow, what boat is that?
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Old 01-02-2012, 06:58 PM
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-----The year...1979. I lucked into a brand new leftover X18 powered with the 330/454 TRS package. The boat would do 70 absolutely stock down to the prop. I found out talking to John Chisholm (DONZIs owner at the time) that they only built a few big-block 18s as they felt there might be a liability issue. Drive was very deep and the boat would heal way over in a sharp turn at slow speeds. Enough that the boat would take on water into the cockpit. Wife wasnt exactly thrilled by the boat so I traded even up for a brand new 1980 Corvette.......Bill S
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Old 01-02-2012, 07:09 PM
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Hey, the whole gang is here!
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