I have the VAFC and would like to know what the normal Vacuum pressure is on a BONE stock ITR?

I have 539 give or take a few...

thanks.

noobie Q, I know...

 

well warmed up @ idle i get about -11 psi. (-570)

Stock engine with bolt ons btw.

 

I was asking this same question earlier.

Did anyone check the Helms?

 

That's plenty. A stock-cammed GS-R will idle with around -550mmHg of vacuum at 750rpm.

 

I just ran outside and started my car for this

Ok I know you said bone stock, and mine if obviously NOT stock but I figured I could at least post. It might be of some use to you.

The VAFC read IDLE: 890
Pressure: 488

But I also think my idle is set lower than a stock ITR? Isn't it supposed to be around 950?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by totsie7944 &raquo;</TD></TR><TR><TD CLASS="quote">I just ran outside and started my car for this

Ok I know you said bone stock, and mine if obviously NOT stock but I figured I could at least post. It might be of some use to you.

The VAFC read IDLE: 890
Pressure: 488

But I also think my idle is set lower than a stock ITR? Isn't it supposed to be around 950?</TD></TR></TABLE>

Mine idles @ 800 after it is warmed up.

 

is your car stock? I dunno my idle was varying but it was anywhere from 850-900. I just took what it was most of the time.

For those that have VAFCs, when u mash the gas what does your pressure drop into? Does anyone drop into the 100-200 range? I don;t know what mine drops to, but I am going to take this chance to find out what other people are hitting.

 

I have I/H/E on a stock engine.

WOT i get -0.4 psi or almost no vacuum, it's like -20 mmHg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pondus &raquo;</TD></TR><TR><TD CLASS="quote">I have I/H/E on a stock engine.

WOT i get -0.4 psi or almost no vacuum, it's like -20 mmHg</TD></TR></TABLE>

hmmm is that normal for his car?

 

well it runs strong, that's for sure.

 

Thank you guys for responding so quick.!

I guess my number is not hat far off... But would like a stock reading to be safe.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso &raquo;</TD></TR><TR><TD CLASS="quote">Thank you guys for responding so quick.!

I guess my number is not hat far off... But would like a stock reading to be safe.</TD></TR></TABLE>

If it makes you feel any better, my friend has a vafc in his itr with only intake, and he says his idling number is basically the same as yours. give or take 15

 

Thank you .