glenrx7

iTrader: (1)

Poll for what vaccum at idle on stock port motor people are getting.

oakridgerx7

on every motor in my black FD, ive only had about 15inHg of vacuum at 750 rpm.

glenrx7

iTrader: (1)

uh oh, then I might be introuble...At 750aprox I am at 12-15 not consistant

mad_7tist

450 - 500 mm HG at ~850

glenrx7

iTrader: (1)

Acually my buddies tell me 12-15 is in spec

MR_Rick

iTrader: (7)

I get 19-21 on a 21,XXX miles motor. was getting 14-15 on my old FD which had compression of 75 PSI all around.

Hyperite

11 @ 750. That's what I've gotten for 3 years.

Sonny

19" @ 750 rpm

Keep in mind that elevation will change this number a lot. I'm right at sea level at home. When I visit my wife's parents in the mountains (about 4500 ft), I lose about 5" of vacuum and a ton of horsepower, too!

Sonny

patriick

iTrader: (3)

I'm curious, have you noticed a power difference from the two? (i.e. same boost, but more power)

Assud

Mine is 16 or 17 at idle ( i cant tell because my HKS gauge goes by 5s)

blacksupra94

I get 15 at about 700-800 rpm.

MR_Rick

iTrader: (7)

Well is hard to tell since my old FD had ECU, DP, CB, Intake and Intercooler upgrade. It did feel faster than the one I got now even with the low compression.

RX7Wishing

i get about 15 to 16 at 725-750

overkill

I get 18" at 700-800 rpm. I have 120,000 on the original engine, and original turbos. Anyone know the vauum numbers for a new/reman engine??

Fumanchu

I only get around 14 at 750. Only 4000 miles on almost totally new motor.

moehler

iTrader: (12)

anywhere from 14 to 17 depending on the weather and idle... stock engine with 65k on it.

BoOsTin FD

If your milage is true and that is stock engine, that is damn good vacuum you are getting.

Amel

Androidmj

if it fluctuates while its idling, thats not a good sign

EKTwin93

I get around 12-15. The motors got about 60,000 miles on it. But, my friend who had a TII pulled ~11" on a brand new motor, ran strong with no problems.

areXseven

iTrader: (1)

I'm pulling 16-17 at 850 from a Reman w/24K. But I have a Blitz intake, DP, MP w/ HI-Flow Cat, 3" Dual Tip MagnaFlow, 99 JSpec Y-Pipe. And it's an Auto.

AMRAAM4

I suck at math, can anytell me how to convert the XXinHg to what the PFC says at mmHG (or vice Versa).

Direct result of screwing off in high school math courses, don't follow in my footsteps kids

mini-x

19-20in at 700-800rpm on a 55k motor

Azaka

1 in = 25.4 millimeters
1 millimeter = 0.0393700787 in

mine is about 13-15in HG at 850

RX7Wishing

mods? ported motor?

smg944

iTrader: (34)

i pull around 16-17in at 750rpm on a 77k mile motor.