now, dont get me wrong, i like haveing more psi then what TRD told me i'd have.... i just want to know if anyone else has this too.

I just installed my Autometer Electric Boost/Vac Gauge in my S/C '06 Automatic, and i made a full throttle pass when accelerating onto a highway, and according to the gauge i maxed out at 7.5psi??

This is my first f/i car so i dont know if somthing is wrong or not causing the boost to be over 7lbs (stock pulley)

Let me know

Thanks everyone

 

I think it's supposed to be 7 at 6,000 rmps, no higher...

 

nothing to worry or brag about. it is probably just some calibration error.

a couple people with the stock supercharger who use the a TRD boost gauge complain that it says they are only making 6 psi.

since the boost is directly related to the rpms and the ratio of rotations between the crank the supercharger pulley, your going to make 7 psi max because of how fast the pulley will spin at redline, and the bosch 102 bpv will release any boost over 7 psi.

you would make less boost if your belt started slipping, or you had a vacuum leak.

 

ok, i just wanted to make sure that nothing was wrong...somthing that id have to take it to the dealer and have them check it out or whatever.

Thats kool though, well thanks for the help

 

Funny story the other night when it was like 33 degrees out I made 9.8psi on my 9.5 pulley. It did it 2x. epic.

 

yes I can hit 8psi on the stock pulley on a nice cool night in 3rd gear... the S/C loves all the cold air it can get

 

Yeah and I have an intake too so that may be partially the reason

 

do you have the stock bpv? because i thought that once you get to 7 psi, the bosche 102 will release any excess boost over 7 psi.

 

hell the stock bosche will release after 6 pounds

 

what you're describing is the function of a wastegate... BPV/BOV do not release boost pressure when they attain a certain ammount of boost. They only open due to vacum.

 

It sounds like the Bosch 102 tends to leak before even 7 pounds of boost though.

 

i am one of those unlucky ones with the TRD goost gauge being a little off!

 

Not when the diaphram folds under pressure and opens, thus releasing pressure.....

 

My aem gauge peaks at 5 or 6 if I'm lucky. I think it hit 7 once or twice. It seems like it usually never reads over 2 maybe 3lbs at red line. But I tapped the line at a crappy spot and haven't had a chance to change it.

I'm also using the Forge 007 with the red spring

 

^ wow. I would think you should be pinned rite at 7psi.