if your running the stock pully on the M45- what kind of psi should u be reading? ive heard from 4.5-6 on the stock pully.. now if you move down to the 2.7 u see maybe 5-7...if u get to the 2.6 u might see 6-8....is this all correct or what are everyone else seeing??
also, i dont understand how a m62sc on the eco on stock pully is seein 8-9 psi????????
what happend to maken the m45 push that muchh?
Wow, newbie-ish.
Yes, those are typical boost numbers. The MP62 on the Ecotec engine is a bigger supercharger, and the pulley is sized to spin it such that it makes 8-10 PSI... obviously ..
2001 Olds Alero (LD9)
650 whp / 543 ft-lb
@turboalero
no im not a new be i was just wondring why...
my m62 pulls 11 psi at the top
z28guy(KGM BEOTCH)
I never ran the stock 2.8 pulley, started with a 2.7 cause I got my kit used. Im on the 2.6 pulley and alchy now, I think my sc is worn out and may need to be rebuilt or atleast the actuator. Im holding off a bit to hear if anything happens with the m62 project.
2.7 pulley: 5-6 psi, 7 in cooler weather
2.6 pulley and alchy- constant 7psi, 8-10 in cooler weather
When I went from the 2.7 to a 2.6 pulley, I jumped from 5psi to 8 without alchy even in 90 degree weather.
i have a 2.6" pulley and the highest ive seen was 7psi
01' Z24 5 speed
422whp/400wtq
T4 Turbocharged
Built LD9
HP Tuners
stock pulley, seeing 5-6 depending on temp.
I wouldn't count on boost gauge readings. Out of the box, even the costly brands can be off a couple pounds.
icemike89 wrote:I never ran the stock 2.8 pulley, started with a 2.7 cause I got my kit used. Im on the 2.6 pulley and alchy now, I think my sc is worn out and may need to be rebuilt or atleast the actuator. Im holding off a bit to hear if anything happens with the m62 project.
2.7 pulley: 5-6 psi, 7 in cooler weather
2.6 pulley and alchy- constant 7psi, 8-10 in cooler weather
When I went from the 2.7 to a 2.6 pulley, I jumped from 5psi to 8 without alchy even in 90 degree weather.
i doubt it's worn out, i mean i guess it could happen but my s/c is a good 4 years old and runs fine lol
