2_much_tc

That's about right. My S/C goes like 6-7. But it's hard to see when driving. When my girl was driving, I could see it better. But I saw the same PSI...

goodguy889

i have the nst pulley on with the bosch 110 bpv and my boost is showing around 11 to 12ish. is that normal.

2_much_tc

^ It's probably cold in your area. I think Kikcaffine said he was getting like 10psi but with his short ram intake during the colder months...

JPsTc

Yea when its real cold the charge temps drop and you overboost.

goodguy889

but thats weird cuz im in louisiana and right now its really humid and still pushing around 12. i have the stock air box but have aftermarket header. maybe i have a 12 psi pulley. how can i tell the difference. i bought it used. its smaller then stock. and the stock belt almost didnt fit.

2_much_tc

I think the 12psi pulley is really small... I don't know how much compared to the stock or even the 9.5 pulley, but I know it's obviously smaller. Did you buy it from someone here on SL? I don't think many people have that pulley...

JPsTc

You shoudn't be anywhere near 11 or 12 so idk.....

goodguy889

that is weird because its def. goin over and past 11 psi.

kikcaffine

Did you buy it on ebay? There was a guy there trying to sell one for a while. Which belt are you using? I really wouldnt continue bouncing around in 11psi territory unless your tuned man.

goodguy889

no i bought it from a guy that had it and sold his car and im using the stock belt.

kawasaki_250r

i want to upgrade to a 9.5 psi pulley but i don't have the tool to get the s/c pulley bolt off. does anyone know where to get it?

also, is there any additional tuning needed if you upgrade to the 9.5 psi pulley?

thanks

goodguy889

there is no tool for it. the only people that have it is TRD. and there not giving it out. i had to drind off the sides and throw on a wrench and took it off. there is no tuning need for the pulley. might need a different belt so it wont slip. i never change mine and its never slip. i do have a question, will any of these cause my boost to go up. Headers, exhaust, throttle body spacer. and can someone PM with the list i need to upgrade my engine to handle the 12 pounds of boost.

kikcaffine

^ no no and no.

DynomyteSW

I belive the 9.5lb NST pulley is 65mm in diameter. Measure yours and if it's smaller than that then you have a 12lb pulley. As far as I know there are only 3 different boost pulleys availibe. The NST 9.5lb, NST 12lb, and the ZPI 9lb pulley.

kikcaffine

^ only 2 of those are worth a flip though.

tC-Collin

lol

goodguy889

well its a 9.5 psi pulley but still y am i pushing 12 psi. ill take a video and put it on here and show you the pulley

Sleep3r

maybe your gauge is off

tCtCtC

figured id post this here since it gives the s/c a lot more power....

Brand new AEM water/methanol injection kit
https://www.scionlife.com/forums/vie...296236#3296236

tC-Collin

meth is dangerous. go frount mount on anything past 7 psi