Is it possible to spool a turbo too fast?

[GNVYUS 1]

Oh ya I did catch that thread, boy did that car run super lean or what.

That makes sense ( to me ) because he is not under boost and his inlet temp is probably ambient so the mist is probably not completely evaporating, but under boost I would think the way warmer inlet temp would totally absorb the mist and completely cool. I am curious on that aspect of alky injection.

 

[Chuck Leeper]

Sounds to me, when reading these posts, that the idea is using turbo spool to control traction....
If that's the idea, why not use a boost controller that will ramp the boost, in a predetermined time period??
As for trap speed: How about a 29" tire??

 

[Blazer406]

As for trap speed: How about a 29" tire??

I thought of this last week... We need to ask MT to start selling a 275/65/15 drag radial. I think it would be the same width as the 275/60/15.... but 1" taller... making it come out to 29" tall. That tire should sell like hot cakes.

 

[Turbo6Smackdown]

for me, the reason I ask this, is im going to set up my car, for the best absolute 60' times, and 1/8th mile. I want the fastest spool possible, and was just wondering, before I do it, if theres any downsides to it thats all.

 

[Syclone0044]

I'm surprised nobody mentioned compressor surge which is the true answer to the question of "can a turbo spool too fast?" What happens is on the compressor map you are over the left hand boundary line and the turbo is flowing way more air than the engine can take, and boost starts coming back out the inlet making a fluttering sound. Very hard on the turbo.

With my stock motor GMC Syclone and a PT51 I would sometimes run into compressor surge at part throttle boost conditions, and also sometimes when I would shift into 3rd gear at WOT and the TCC would lock bringing RPM down to 2700-2800.

 

[Turbo6Smackdown]

ahh I see. never thought about that. though, could a stock turbo outflow 3.8 litres at that low an rpm range?