Crankshaft

ziembic

ziembic

Donating Member
I am starting to spec out the motor that I am building, and wanted everyones opinion on crankshafts. I am building an LS based motor and I am looking for the best crank I can get that is not made of a material that cannot be used for more than racing. The reason I say this is because titanium valves are very very good, but they do not stand up well to street use. I am looking to build a very capable street truck that gets raced on occasion. My goal is 600 to 800 horsepower that is reliable, so I am looking to build a bottom end that is capable of double that. So what does everyone think?
 
Don W.

Don W.

Stab it and steer it
Re: Crankshaft

ziembic said:
I am looking for the best crank I can get that is not made of a material that cannot be used for more than racing.
Click to expand...

Interesting double negative. So what you want is a crank that can be used for more than racing?

I'm running a Scat with no problems, and for that matter I have a stock crank for sale, std size. Others can tell you how far a stock crank has gone HP wise but as I recall fairly stock bottom ends have produced some serious HP. Right now I know of no other mfg that makes and even-fire V6 crank. Prolly out there though.

Oops... LS based. That opens the door to a bunch of cranks. Pick up a copy of National Dragster. It's full of adds for bottom end stuff.
 
qbnkiller

qbnkiller

Conflaguration Specialist
Re: Crankshaft

psst! He's building an LS-based engine!

Do a Callies Magnum. Nice unit for up to 1,500HP.
 
ziembic

ziembic

Donating Member
Re: Crankshaft

Don W. said:
Interesting double negative. So what you want is a crank that can be used for more than racing?
Click to expand...

Guess I could have made it easier to read, I had the wife blah blahing in my ear. I want something that I can drive on the street. I don't think they make too many non street-able cranks, but I wanted to be sure.
 
BMFB

BMFB

Not to scale
Re: Crankshaft

From my understanding, a stock ls crank is good to 900 hp, and people have gone higher without problems.

http://www.ls1tech.com/forums/forced-induction/1349124-whos-making-1-000-hp-stock-cast-crank.html

you didn't mention if it was a series 1, 3, 6 ect. I think that might make a differance.

With numbers like that, I'd be treating it like a ty motor, make sure its tuned right, and keep an ear out for ping, and an eye on the wideband.

is this N/A, spray, or T T T TURBO?
 
ziembic

ziembic

Donating Member
Re: Crankshaft

Right now I am leaning towards twin turbo LSX Bowtie. I will stick to this if I have the patience, because parts aren't cheap. I am trying to build a motor that will only be using half of its potential so that I don't have to worry... as much.
 
BMFB

BMFB

Not to scale
Re: Crankshaft

half is a big barrier, and an expencive one. but, if your going twin turbo on an lsx, then a couple extra grand isnt that big a deal I suppose, I would think you get some good pistions, rods and bolts, your bottom end should stay together as long as you dont let it ping all the time. From all the forums i've been on and car people I've talked to, it seems like if you can build and tune a syty motor and keep it together and making power, you can build and tune anything. the ls motors dont detonate like these do, and they take abuse better....way better, just don't depend on it to hold your motor together.
 
You must log in or register to reply here.
Top