Re: BW4472 9310 input shafts
Re: BW4472 9310 input shafts
Actually your dimensions are off a little bit. The design is different and the material was changed from 9310. I'm not gonna tell everything I did. When you race, you break stuff. Part of the game. But your concern is legitimate for the stock material or 8620. What we can do is build a bigger margin for failure. It may still fail, but you will be able to make much more power before it does. See what I'm getting at?
Just to let you know, 9310 vs 4340. 9310 has some VERY good properties. 4340 has some very good properties. But you don't want a material too hard or too flexible. I've put some time into this and I'm not telling what's all involved. If you want in on it, get in. If you want to watch everyone else do it, that's ok too. You don't have to get one. There's so much interest at this point that 15 units are gonna be made regardless.
If you want to reassure yourself, though, measure a 700r4 yoke. This design is a tad thicker than that.
I don't mean for any of this to sound nasty. Our problem we are facing is the reality that there are only so many of us. We don't have hondas. Billions of these won't be made. There's no call for it. But price is a factor also. I could make them out of an exotic british alloy. Cost would be $1500 per unit. Units sold, zero. There was some compromise but the end result will be very positive. Rodent, if you want to wait, feel free to do so. I will have more made in the future, they will just cost more due to less units being made at once. I will make every attempt to have them available.
There is NEVER a garantee on racing parts. I'm surprised you'd even ask such a thing. This is a step up. ANYTHING CAN BE BROKEN. If a guy is making 1800 foot pounds of torque and takes off with 0 boost, he may never break one. If the same guy takes off with 15 pounds of boost, he may leave pieces all over the place. Go see how much it costs to have ONE made. You do NOT have to buy any of these. I am offering these at the price it costs to have them made. I'm just trying to give you something better. You want a garantee? Go somewhere, pay 3 prices, and they will "give" you another if you break it. Please try to realize what I'm doing.
Like I said, if you don't want one, do NOT get one.
rodent said:
Sorry I'm taking my time getting the money to you but I want to make sure this will strong enough behind a well built turbo V8 (similar specs to Nelson Racing Engines).
After looking at the 4422 input shaft, I'm a little concerned with having enough metal around the 32 spline shaft. When you measure the what the new bore size will be, thats about .100" less in the wall thickness. Its thin to begin with and with the new size it needs to be to fit a 32 spline, it has me worried.
wall thickness before: .282"
wall thickness after: .182"
35% less wall thickness
I'm also wondering if they offered an option for 4340 since thats stronger than 9310? I know 300m material might be out of the question due to price.
How much HP will these 9310 shafts support and is there any guarantee if I happen to break one? With a super built 4L80 and a 4472 thats been Cryo-treated, what will mostly likely break? (excluding propshafts, axles, etc)
Sorry for the all the questions and conerns but I just want to make sure this newly designed shaft will support the HP I'm shooting for.
) (paid)
