I may be buying a Emanage ultimate to tune my comptech kit, with 550cc Rc's and 10psi...
Will i need the greddy (boost) pressure sensor?
What is it used for?

 

I believe the stock MAP sensor is fine up to 10 PSI, so you should only need an aftermarket sensor if you plan to go above 10 PSI.

 

thats what i sorta got out of the research i did on the forums, just wanted to make sure.

 

I would think that you would want bigger injectors to run 10psi.

 

yea i think the stock can handle up to 10-11 psi.


on a side note, the gm pressure sensor can be used with the greddy right? just plug and play?

 

Technically, yeah, they should interpolate properly. You know, 0V at idle (negative pressure), and 5V at 3bar, accordingly.

If you can, buy the greddy or a GM MAP. It's better to run ignition timing off of load, instead of RPM.

Hey, I was thinking, these digital Vac/Boost gauges that come with their pressure sending unit, they're 5V, aren't they? Maybe you can tap into it for greddy ultimate.?