I'm having Crower make me a crank shaft and order it with a big block snout is this a mistake? Should i make it a regular sbc snout and buy custom hub? Also what else do i need to due job right. Plan on running s-trim for now but have serious plans for ysi in future. BTW 383,AFR,bla,bla,bla

 

You'll want to run a bbc hub if your going with the ysi in the future. Go back some posts here and read the ones about the bbc hubs and modifying your timing chain cover and stuff. The bbc hub is stronger and will be a safer choice on the higher boost charger setups.

Ken R.

 

i personally think it halarious how people, advise others to run BB snouts on Ysi's, yet they dont have one themselfs. Sikora ran a Ati damner, regular snout, cog set up, 8.9x@159mph never had a crank failure. Just something to think about.
I would make sure the machine shop does a good job of checking for timing gear clearance on the crank so you dont have a failure there, then check for the resistance fit on the dampner before pressing it on the crank, and of course keyweight. If those 3 check out good and your belt is lined up properly and tensioned properly as well you should have not issues with a crank if you do its junk.

 

So your saying that if you were putting a setup together, you would opt for the weaker part over the stronger choice on a big power setup? Hell yeah i'm gonna suggest the stronger setup to the guy to avoid a big possible pain in the *** later on. I'm planning on upgrading to a Ysi myself and aren't planning on it without upgrading the hub at the same time, and i am only talking about the hub itself and not the crank snout as stated in my previous post. The fact that there are others out there that have had hub failures says that the smaller hubs CAN fail and thats enough for me to upgrade when i have the time and money, no matter who's cog setup is currently working at the moment.

Ken R.

 

do you know why hubs fail? they are being forced on the cranks without messurment. So the resistance surface has to be .160 if i'm rememeber corectly if its tighter then that guess what happens? you streching the hub onto the crank.

 

The standard press fit tolerances is .001 +- .0004. My BB hub was too thick by .004 and wouldn't fit for ****.

-B

 

thanks for the input i was actually going to look that up before installing my ati balancer next week. I have broken an eagle crank during my brake in period, 400 miles never romped on it just idling in the driveway the snout snaped. I knew it was a defect from Eagle. so i put in a scout crank and ran 4-5 lbs more for the whole season with no issues.

 

>so would you guys also recommend using dual (or more) wood drift keys?
The keys on the crank...

 

Dual keys!!!!

-B

 

>WOODRUFF KEY