What are the average boost gains going from the M62 to the TVS 1320 pulley to pulley? If I know the added boost I can calculate my new HP.
Is it a little better than 30%

I am at 10psi now at 2.4L with a 2.8" @6200" ASL... Not really interested in spinning it any faster with a 2.6"
Tried a newly coated M62 and was at 12psi.

Can I see 15 to 16 psi?

 

There's graphs floating around somewhere showing the efficiency of the superchargers at RPM and pressure ratio that might help. As far as a rough estimate you could probably use the difference in displacement though m62 is 3 rotor and tvs is 4 so I don't know how good of a comparison that would be.

 

yeah 100% meth posted it awhile back

 

I never ran an m62 so I don't have a direct comparison, but if it helps, my 2.2 makes about 20-20.5 psi on a 2.7" pulley with an overdrive crank damper (roughly the equivalent of a 2.6" pulley on stock damper)

 

It's an old thread, with the basics. Things have come a long way since then, but you should be able to scrounge some info from this

https://www.cobaltss.net/forums/adva...ow-faq-184037/

 

So what kind of HP are you making? My boost would be a little lower due to displacement and elevation kill me.
Holy **** if I could make 20 psi in a 2.4L

 

https://www.cobaltss.net/forums/dyno...2015-a-304260/

 

Must save more money.....

 

M62 on a 2.7 pulley was 16psi. Tvs on a 2.7 pulley 23psi