Crank bearings SR20DET- SR20DE ?

[evolve S13]

I had the machine shop order some SR20DE crank bearings. I assembled the bottom end with all new ARP hardware "Main studs and Rod connecting bolts". Im getting really horrible binding issues when the crank is fully torqued. I used assembly lube on both sides of the bearings and I had the crank polished, balanced and straightened. So i know the crank is good and i ordered standard size bearings plus i TQ the mains in steps like your supposed 2 "i did this multiple times".

Basicly im asking if u can use SR20DE bearings in a SR20DET bottom end. At this point i can only think that the bearings are wrong. but i got standard size SR20DE bearings for a Crank that is in spec.

and because everyone like pictures, me at the last event

[Seishuku]

ARP main studs will distort the journals differently than OEM bolts. When you use ARP mains, you need the journals line honed with those studs, then use over sized bearings.

[evolve S13]

k, i dont wana sound like a d!ck but are u 100% sure about that. I mean im just using a different fastener so i don't understand how that would distort the journals when im using the same caps. I mean that would explain why the crank is binding.

I'm not saying ur wrong just trying to understand. I need this motor together ASAP because Formula D Pro/Am is coming up soon and i still need to break the motor in. I just wanted to make sure u were 100% sure.

Thanks for the help man Seriously

[Seishuku]

The studs have a higher clamping force, causing the distortion. You could torque to OEM specs, and maybe get away with it, but then what's the point of the studs?

I would double check and make sure you have the correctly sized bearings though.

[evolve S13]

k thanks man, I'll try a few different things