Originally Posted by 1stGenCRXer
I've also driven automatic turbos.
The only reason I brought that up is because you said that our earlier replies were based on hearsay, and I'm saying it's not.
Originally Posted by 1stGenCRXer
This may be true if you ignored altogether how a torque convertor multiplies torque, which is how it works to utilize longer gearing.Gearing has very little to do with turbo lag.
That's correct, the torque converted does multiply torque, but only off the line. Once the two halves of the donut get going at about the same rate the mechanical advantage depends primarily on gearing.
Originally Posted by 1stGenCRXer
Tall gearing may mean you operate at lower RPM with each shift,
That's the point, you have to start moving from idle, and the turbo is not spooled up at idle.
Originally Posted by 1stGenCRXer
I'm not saying auto is optimal, but it's certainly not a deathblow in terms of lag. If it is, you did something wrong.
I'm not saying it's a death blow either, just that it is kind of annoying, and that it is more a problem for the automatics than manual cars. And I am talking about from standstill.
From my experience, not being able to launch a car above the RPM where the turbo starts to spool up detracts from its performance. A manual allows you to start above that RPM, whereas an automatic requires you to begin from idle, so that issue is more prevalent with an automatic. I am not saying this makes the turbo ineffective.