New Drivetrain: need help deciding on engine 950hp BBC vs 700sci
#31
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Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
Well the search is over for now! After speaking with Brett, I ended up picking up his new 700sci.
With several inter-island trips per year (open ocean navigation), reliability is #1 especially with a single engine setup. So I will sacrifice some power for this peace of mind...for now.
Appreciate everyone's input!
With several inter-island trips per year (open ocean navigation), reliability is #1 especially with a single engine setup. So I will sacrifice some power for this peace of mind...for now.
Appreciate everyone's input!
#33
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Joined: Jan 2014
Posts: 409
Likes: 88
From: W. Mich.
I should keep my mouth shut, but I've never been good at that…
I've run carbed motors, both on gas and on alcohol, and yup, they were dependable.
But to say a carbed motor - even a well set up one - is "much more reliable peace" than a fuel injected motor ?
I think that's a "bit of a stretch" and will admit that isn't the first phrase that came to mind.
Carbed motors have to be set up correctly to be dependable.
Injected motors have to be set up correctly to be dependable.
Either is a piece of **** when it's broke.
But, in my opinion, the biggest difference is this: carbed motors have to be tuned for the area and conditions they're going to be run in.
We aren't talking about some wimpy stock motor in an 18' family bowrider tuned so wide it doesn't matter where in the country it's being run.
We're talking about substantial cubes and relatively high performance. If you have a dual carbed, 600+ CID motor tuned so it can be run in any conditions regardless of altitude, temp, or humidity, it aint "set up right". That's just the math, and math isn't an opinion.
I've got a 600 CID, compound blown, electronic efi Boostpower engine that doesn't so much as hiccup. It can be run anywhere in the country, and if I do have an issue, if I've got wireless access Alexi can tune it remotely from his laptop. I'll put that reliability up against any carbed motor any day of the week in any conditions. And it's no trailer queen, it gets run weekly and hard enough that I have a spare outdrive because that's the weak link, not the motor.
I'm not trying to start a pissin' contest, but why are you trying to rain on the OP's parade?
He asked for advice, made a decision, and is obviously excited.
"Sounds like you spoke with a good salesman"
That sounds like a disgruntled salesman that lost a deal. You the guy trying to sell him the carbed motor?
I'm sorry for the rant, but WTF ? This kind of BS is exactly why OSO has people defecting to other forums…
Looks like I'll be following them…haters just gotta hate, i guess
#36
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Joined: Jul 2008
Posts: 2,801
Likes: 1
Although I would have gone custom (on my last build I went to Boostpower like slippery) there simply were no bad choices here.
The Merc 700 is a great package and what foibles it may have are well known and with a few changes it can become a fire breather.
The poster should rightfully be very happy especially if he got a clean low hour unit.
UD
The Merc 700 is a great package and what foibles it may have are well known and with a few changes it can become a fire breather.
The poster should rightfully be very happy especially if he got a clean low hour unit.
UD
#37
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Joined: May 2012
Posts: 720
Likes: 0
From: Gibraltar, MI
Although I would have gone custom (on my last build I went to Boostpower like slippery) there simply were no bad choices here.
The Merc 700 is a great package and what foibles it may have are well known and with a few changes it can become a fire breather.
The poster should rightfully be very happy especially if he got a clean low hour unit.
UD
The Merc 700 is a great package and what foibles it may have are well known and with a few changes it can become a fire breather.
The poster should rightfully be very happy especially if he got a clean low hour unit.
UD
New, with a warranty even. I think...
#38
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Joined: Jul 2008
Posts: 2,801
Likes: 1
Congrats Turbo,
Here is what a merc 700 sounds like - its nasty.
The vid kept changing aspect ratio, but you can get a good idea of how raspy and mean the merc 700 is.
The blue 39 with windshield has 2 of them and goes like a bat out of hell with cleavers.
The boat on the left a Lavey 29 has a teague 800 in it thats been sweetened a bit and is nasty as hell
Im in the middle with an Ilmor 710 on 2" CMI's with Gatlins.
Bup is sitting on my left.
https://www.youtube.com/watch?v=LUOM...ature=youtu.be
UD
Here is what a merc 700 sounds like - its nasty.
The vid kept changing aspect ratio, but you can get a good idea of how raspy and mean the merc 700 is.
The blue 39 with windshield has 2 of them and goes like a bat out of hell with cleavers.
The boat on the left a Lavey 29 has a teague 800 in it thats been sweetened a bit and is nasty as hell
Im in the middle with an Ilmor 710 on 2" CMI's with Gatlins.
Bup is sitting on my left.
https://www.youtube.com/watch?v=LUOM...ature=youtu.be
UD
Last edited by Uncle Dave; 08-28-2016 at 04:14 PM.
#39
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Joined: Feb 2016
Posts: 18
Likes: 0
[QUOTE=Uncle Dave;4474548]Although I would have gone custom (on my last build I went to Boostpower like slippery) there simply were no bad choices here.
Correct; a new, never fired unit complete with headers and warranty. Couldn't be happier.
Sweet sound clips! Thx for sharing. Getting excited to get the new powerplant in there to hear the same music!!
Correct; a new, never fired unit complete with headers and warranty. Couldn't be happier.
Congrats Turbo,
Here is what a merc 700 sounds like - its nasty.
The vid kept changing aspect ratio, but you can get a good idea of how raspy and mean the merc 700 is.
The blue 39 with windshield has 2 of them and goes like a bat out of hell with cleavers.
The boat on the left a Lavey 29 has a teague 800 in it thats been sweetened a bit and is nasty as hell
Im in the middle with an Ilmor 710 on 2" CMI's with Gatlins.
Bup is sitting on my left.
https://www.youtube.com/watch?v=LUOM...ature=youtu.be
UD
Here is what a merc 700 sounds like - its nasty.
The vid kept changing aspect ratio, but you can get a good idea of how raspy and mean the merc 700 is.
The blue 39 with windshield has 2 of them and goes like a bat out of hell with cleavers.
The boat on the left a Lavey 29 has a teague 800 in it thats been sweetened a bit and is nasty as hell
Im in the middle with an Ilmor 710 on 2" CMI's with Gatlins.
Bup is sitting on my left.
https://www.youtube.com/watch?v=LUOM...ature=youtu.be
UD
#40
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Joined: Jan 2004
Posts: 5,325
Likes: 112
From: Northern NY
All I will say, for what little it might be worth, seems that more often than not the aftermarket big gun builders come up with some numbers to make your sticker peck up, put the biotches in the boat and they fall on their face. I know of a couple of my own brand that have run better numbers with stock Merc Perf motors than they run with the other guys monster chit.


