New Billet Flywheel from SoCalDiesel
- Thread starter Mike L.
- Start date
I think the stroker crank is externally balanced , looks right.
look at sbc 400 flywheel , there is a large chunk on one side.
look at sbc 400 flywheel , there is a large chunk on one side.
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Wow that looks impressive! Sure wish it had have been available when I did my build. The one I purchased left a lot to be desired in fit in finish!
Guy, do these 1-up any of the current offerings (ATS/IE) in any way, other than having a separate model for the Stroker?
Don't feel stupid, when I started modding my 02 gmc, I was like a kid in a candy store, bought and installed a stuff that was totally worthless. Tried every new gimick that came down the pike, and didn't have a clue what I was doing, (some say I still don't
). At one time had h20/meth, propane, a duramaximizer, edge juice, ATS Tuner, 95 hp injectors (still not sure what they were) an A2000 turbo with a pedistal I couldn't keep from warping, and some other stuff all going at once along with running 50/50 h20/meth. Errr can we say a bit too much timing??? I also had almost no rail pressure at WOT I wonder why? Blew my head gaskets too and I had studs. Within 6 months all that stuff was junked and sold at pennies on the dollar.So don't feel stupid, but asking before you buy is a good thing.:thumb:
All 6.6 Duramax engines are externally balanced, meaning they have extra weight on one side of the flywheel to counteract the weight of the piston and rod assembly. If you look carefully at a stock flywheel, you will see a big chunk of weight on one side and holes directly opposite from the weight.
In designing the SoCal Flywheel I chose to subtract weight to get the balance matched to stock rather than add weight to the opposite side. You can do either or both, but subtracting weight from only one side will make the overall product lighter.
We have 6 CNC machines in house (3 of them 5 axis) as well as approx. $100,000.00 invested in various Cad/Cam software. The 5 axis stuff is pretty expensive.
Factory 6.6 Duramaxes use two differently weighted flywheels/dampers.
The LB7/LLY are the same and the LBZ/LMM are heavier to make up for the heavier piston.
We have a matched balanced flywheel for the LB7/LLY that is a direct replacement and one for the LBZ/LMM that is also a direct replacement.
The other companies have a one size fits all approach.
The Stroker has it's own requirements for balance so we have a dedicated flywheel for that as well.
Guy
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We have 6 CNC machines in house (3 of them 5 axis) as well as approx. $100,000.00 invested in various Cad/Cam software. The 5 axis stuff is pretty expensive.
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Guy
can I get an app please
All 6.6 Duramax engines are externally balanced, meaning they have extra weight on one side of the flywheel to counteract the weight of the piston and rod assembly. If you look carefully at a stock flywheel, you will see a big chunk of weight on one side and holes directly opposite from the weight.
In designing the SoCal Flywheel I chose to subtract weight to get the balance matched to stock rather than add weight to the opposite side. You can do either or both, but subtracting weight from only one side will make the overall product lighter.
We have 6 CNC machines in house (3 of them 5 axis) as well as approx. $100,000.00 invested in various Cad/Cam software. The 5 axis stuff is pretty expensive.
Factory 6.6 Duramaxes use two differently weighted flywheels/dampers.
The LB7/LLY are the same and the LBZ/LMM are heavier to make up for the heavier piston.
We have a matched balanced flywheel for the LB7/LLY that is a direct replacement and one for the LBZ/LMM that is also a direct replacement.
The other companies have a one size fits all approach.
The Stroker has it's own requirements for balance so we have a dedicated flywheel for that as well.
Guy
that's good to know, thank you Guy.also, what is the overall weight difference between yours and the stock ones? or even yours vs. ATS or IE? and what does this mean for guys that have their rotating assemblies internally balanced? does it make it more difficult?
Thanks,
Tim
Our LB7 is 1.15 pounds lighter than stock.
Our LBZ is 2.85 pounds lighter than stock.
A reduction in overall weight is nice but they key is where that weight is located.
The farther the weight is located from the rotational center the more effect it has in centrifugal force.
An optimum design is as light as possible on the outside diameter which is why we have removed as much weight as possible in that area.
Internally balancing a Duramax crank would require adding alot of heavy metal to the counterweights of the crank. Basically holes are machined in the counterweight and metal that is more dense than the original crank material is pressed into the hole.
This is a very uncommon practice in the Duramax world and the cost could easily exceed the original cost of a stock Dmax crank.
However, if someone chose to do that, (and we have
) they would need a "zero" balanced flywheel and damper, which we could also supply.Guy
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We have 6 CNC machines in house (3 of them 5 axis) as well as approx. $100,000.00 invested in various Cad/Cam software. The 5 axis stuff is pretty expensive.
What? All these fancy multi Axis machines cost money?:rofl:
Looks great Guy!
This is a very uncommon practice in the Duramax world and the cost could easily exceed the original cost of a stock Dmax crank.
However, if someone chose to do that, (and we have
Guy
Cool, I wasn't sure of the price of internally balancing, and now i have a better idea of it. I asked because Kuselick's motor has an internally balanced stock crank as i understand it, and they sure have made a big opening statement this year with that truck, going from a stroker to stock displacement even.
thanks,
Tim