Hey guys, I am building a 5.3L forged turbo engine. I have purchased the 10% UD aluminum outer shell ati balancer for it a while back. The car will see a lot of street driving. Should I be exchanging this for a steel outer shell for more street use? Ik there is a few threads about this but didn't get a concrete answer.

 

I have been running mine for years. When I spoke with a tech at Corvettes at Carlisle when I bought mine (ATI had a booth at the show) he said that ATI didn't build 25% underdrive because it didn't provide enough protection.

 

Thanks! Just want to make sure I'm making the right choice

 

On some of these forums people are saying aluminum shell isn't good for street driving.

 

Running the ATI 10% for over a year here have about 600 street miles. I'm pretty sure it's an aluminum shell.

 

You might have issues if you run Autox, otherwise it should be fine. I have quite a few miles on mine.

 

Autox?

 

Sorry, autox = autocross

 

I would think a lot of street driving is similar to auto cross. Obviously not As extreme

 

I just bought one for my Vette. Aluminum body and steel hub. They said it'd be perfect for street use up to 600HP as is. I did go ahead and have them make it with the high rpm material though. Only weighs 9 pounds.

 

Mine is aluminum too. Aluminum shell and steel hub.