Stall speed recommendations with stroker motors

[Sleeper-6]

What effect does added displacement have on the minimum stall speed recommended for a turbo? Is there a general rule to follow?

 

[V6RACER]

What effect does added displacement have on the minimum stall speed recommended for a turbo? Is there a general rule to follow?

Call Dusty Bradford and talk to him about your setup. He will steer you straight.

 

[BlackBandit]

The reason you need a higher stall is so the engine will move more gas to spool the turbo. If you have more displacement you will need less stall to spool any given turbo. As a bonus you'll probably end up with better efficiency. It's kinda win win.

 

[Sleeper-6]

I understand the basic relationship between the converter and turbo, What I'm trying to figure out is what the general reduction in the required stall speed is with the additional 20 cubic inches of displacement.

 

[BlackBandit]

I see. Well I'm not an expert on this. In fact, I can't even claim to be well informed. I would guess around %10 less stall would be required though as you'll be moving around %10 more air. Like I said though, I'm no expert! Hope that helps. james

 

[Sleeper-6]

That's cool, I was guessing along the same lines as you.