Dave88LX

Check out these pics:

http://paradox.shacknet.nu/dave88lx/formula/crank2.jpg

http://paradox.shacknet.nu/dave88lx/formula/crank3.jpg

http://paradox.shacknet.nu/dave88lx/formula/crank4.jpg

http://paradox.shacknet.nu/dave88lx/formula/crank5.jpg

I'm running an SRP 16cc dish 403g piston.

Seems as though that's quite a bit of holes. The part I don't like is look at how the holes are intersecting, with paperthin walls between some, some holes ALL THE WAY THROUGH, and on others there's just metal HANGING there.

Is this pretty much standard practice? I may be having some words with my old machine shop.

Also. On the flywheel, it's got that weight on it. If that weight is ground off, and "zero" balanced by itself, how does that affect the crank when balancing it? Will it need even MORE metal taken out? Or will it be a little less holy?

I think I'm going to have to be buying myself a new crank here, and throwing this peice of **** through the window of the old machine ship back in TX.

Friggen hacks. They probably didn't even use all 4 spirolocks.

rskrause

Ugh.

Rich Krause

Mikey 97Z M6

Damn, what kind of rods are you using?

Mike

WS6T3RROR

what he said

Dave88LX

This was balanced with:

Scat 9000 Crank
Scat 4340 Forged I-beams
SRP dish pistons 403g's
Stock flywheel
Stock damper

I would assume they balanced it with the pins, spiro locks, bearings, and rings...

I'm 3/3 on "ugh's" lol.

LT1Squirrel

no 'ugh' from me....ill give ya 2 wtf's

94GreenZ28

You might wanna take it somewhere else and double check that.

sseeya

My setup is exactly the same as yours and mine didn't look anything like that. Make that 4/4 on ugh's!

1racerdude

Did you order an LT-1 crank and have it internaly balanced?

Dave88LX

It's a SCAT 9000 crank, part # 9-350-3750-6000-L

Supposed to be the right one for this application.

SS MPSTR

That's the correct crank....your old machine shop just butchered it.

Ugh again.

cliff929

Did that same shop do the machine work on your block also? When you call them up I would not chew them out right away just try to see if they will replace the crank and refund your money for the machine work. If they dont work with you on there mistake. I would let them have it. And if you go into there shop and talk to them I would make sure all the customers in the store hear about it also. Thats if they dont make thing right.

Best of luck to you.

Dave88LX

Yeah I'm definitely going to call him up first after I get it checked for balance. I guess if it checks out OK balance, then it's just an ugly crank. But, based on your results, it looks like an awful lot of material hacked out of there.

If the crank is beyond fubar, I think it's their business to replace the crank as well correct, since they ruined it? I'd like to get at least my money for machine work out of it.

I didn't even mention that part, but if I remember the #'s right, (They're in my work email) they did a finish hone on it, however it was still ~.002" too tight. Bret will have the exact #'s on it. But needless to say it needs to be rehoned. I feel that I should be compensated for that machine work as well.

The shop I originally took it to did the machine work, but they sent it across town to the other machine shop since they don't have a balancer. I didn't trust the guy around town not to keep my parts for his own, which is why I didn't bring the stuff to him originally.

I paid guy #1 who took it to guy #2 who balanced it, and then back to #1's shop.

1racerdude

Did you have it internal balanced?
The reason I am asking is a crank for an LT-1 is set up with the front half internal and the back half external balanced(weight on flywheel or flex plate).With your light pistons and a complete internal balance,this could account for the massive metal removal on the front end.The crank they should have sent,if they knew about the internal balance,is one from an early,one piece seal small block.Your machinest should have known this and informed you,if this is the case.
There are other ,neater ways to remove metal than just butchering in a lot of drilled holes.Like narrowing the balance weight in a lathe.

Dave88LX

He didn't seem to know...plus like I said he sent it across town. When he first ordered he ordered some flat top 5cc valve relieve pistons, which put me at like 13:1 CR. I should have known then to go elsewhere, but there weren't many options in my crappy town.

The flywheel still has the balance weight on it.

Yea see that's what gets me...you're supposed to cross-drill rotors, not a damn crankshaft.