GoatKart

Anyone have any before and after results on a centri supercharger before and after changing to a high stall?

It seems like a blower like that which is so dependent on RPM to make boost, will show big gains by swapping in a good stall.


Just curious if anyone has put theory to the test?

Blow Torch

No before results, since I had my stall before the blower. But I can say that with the stall, it goes almost instantly to boost. I know some of the guys like the roots blowers so they can get into boost immediately, but I think that is only an issue with manuals, since a stalled auto gets into boost pretty darn quick.

RonSSNova

Makes perfect sense to me. It's the first thing I'd change. Maybe not get too greedy though. Talk to your supplier. They will know what you need.

Ron

GoatKart

I'm actually installing a 3000 stall in a couple weeks. I was just looking to see if the improvements with the centri s/c are actually better than those observed in a n/a motor.

It seems since the boost is so directly tied to RPM with a centi s/c that as mentioned above, you should see a noticeable bump in performance due to hitting boost at a lower speed/rpm than you normally would see.

Similar to a pulley change in some ways i suppose.

RonSSNova

It won't get boost at an earlier rpm. It will just get to the rpm where boost happens much quicker.

2003VETT

I had a 3800 on mine.. 60' best is 1.31. Yes. Higher would probably work better, but I am now using a 3600, I don't know what my new 60 will be....

4DRUSH

Let's not forget about gear ratio,tire size, HP, weight, etc