Thread: Dart Big M 9.8 short deck
Results 41 to 56 of 56
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01-26-2010 01:21 PM
Not sure of the hrs but from my understanding, "Dare Devil probably knows more about it" but I have heard they tear them down after every race or 2 maybe and check everything swap out rockers, rod & cam bearings, that is if you want to be a contender in the next race.
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01-26-2010 02:20 PMNot really trying to compare, just letting him know that sometimes it's ok for the pin to be higher up in the piston.
4.530 bore, 4.50 stroke, 6.70 rod, steel heads, 93 oct.
On The Chip ran their supercat engines pretty relentlessly (Curtis is an animal) with minimal maintenance through out the race season.
Brings back good memories!
Last edited by Geronimo36; 01-26-2010 at 02:25 PM.
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01-26-2010 03:36 PMNot sure about instagator, other than me having to waive them back on track but good thing Peter didn't pass on my stern side cause my cousin would have needed to DQ him.
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01-26-2010 07:34 PM
Anyone with experience building 11.1 Dart Tall deck pro's/cons vs 10.2 I'm fixen to start building engines for the 35' OE Cat project and would like some input on engines using the 11.1 Dart blocks as the foundation. N/A VS Blown. I'm thinking around the 1100-1150 HP range with gobs of torque should do the trick. Can I get that much N/A. I bought #6 SSM wet 1.35 ratio drive's for this project.
Last edited by Velocity Vector; 01-26-2010 at 07:40 PM.
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01-26-2010 09:10 PMThe 11.100" deck height block is going to allow you to run more stroke and lower the rod angle, by reducing the side load on the cylinder wall. Depending on what stroke, rpms you will be running is going to limit you. The mass of the rotating assembly is still a factor.
www.merperformancemarine.com
843-399-8785
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01-26-2010 09:18 PMI know for a fact, a 660 CI Donavan engine N/A Hydraulic roller with a 1050 Dominator and a reg intake ( don't know any specs on internal parts ), made 960 HP and 1020 FPT @ 5800 RPM on the DYNO !!!!!!
THE DONAVAN BLOCK IS A 11.200 SUPER TALLDECK !!!!!!!
The cheaper and maybe easyer way is a 572 ( 10.200 ) blower engine , twin 800 carb and mild should do ~ 1000 HP and 850 + FPT @ 5800 RPM.
IT always comes down to MONEY !!!! LOL
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01-26-2010 10:27 PM
Donovan 800 CID 180 lbs. Looks real pricey to me.
Donovan Engineering HC 800 Standard
Weight 180 pounds
Maximum CID, 5.0" Spread Bore
Cam Raised 1.0"
Pan Rail 3/4" Wider Than Stock
Deck Height 11.000" to 12.000"
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01-27-2010 07:48 AM
Brodix makes a 10.4 deck block that would make a nice 632 with 6.800 rods. Other than the block, everything that goes inside would be off the shelf items.
Big boats rule!
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01-27-2010 11:00 AMI guess it's personal preference but I think you'd be better of with a 565" or 598" blown with a 10.2..... You get gobs of torque and HP and lower RPMS and parts that are readily available from all the aftermarket companies should you have a failure.
Just my opinion!
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01-27-2010 11:53 AM
Thanks guys I am all about off the shelf. I'll go 10.2 and that will do exactly what I want it to. No use making it harder than it is. Plus the cost is about 1/2 going with this set up vs the super tall with custom parts list..