Which Boost Gauge Would You Trust

[Haysey]

Hey all,

well with these cold mornings ive loved driving my car... although the colder it is the higher my Autogauge Boost Gauge reads... it looks like its hitting 19.5 (cant really concentrate on it or id end up in the other lane).... where as my Profec is set to 18psi and never goes over 17.9 or there abouts.....

now my EBC is attached to the Fuel Reg, and the Autogauge is attached to the stock outlet on the intake manifold....

so which one would you trust.... im thinking my EBC, but just wondering why my other gauge would read higher?

THanks Yall

[mad082]

there is always going to be some discrepancies between different gauges. essentially they are both reading from the same place. just because the ebc is digital doesn't mean it is mroe correct. the map sensor may not be calibrated 100% correct. but then a needle guage isn't as specific when you read it. it depends on what part of the needle you read from and how well it was calibrated also. i would probably say the ebc though.

[STATUS]

autometer boost gauges are notoriously innacurate.

[Bliksem]

My tendancy would be to lean towards the EBC... only because I feel Autogauge wouldnt be equal quality as Greddy...

[BAMR33]

Either way should not matter as long as the reading is the same for each gauge and does not fluctuate in pressures. I'd be more inclined to think the EBC is the correct reading especially since the autometer is probably mechanical.

[Haysey]

The Autogauge is an Electronic, Smoked Series.....

But im pretty sure the EBC was reading the same to the boost reading on the dyno now that i think about it.......

lower values its spot on just when it gets high it becomes inaccurate....

But $400 vs $90 is a big difference in price and quality IMO

[STATUS]

The Autogauge is an Electronic, Smoked Series.....

unfortunately they are pretty crap, but what do you expect for $90 i thought it was auto gauge from autometer but they are also average.

[siddr20]

Get guages which have an stepping motor in it.. such as defis, pivots.. etc.. They are more accurate!!

I got a pivot one myself.. love it!! looks so much better!!

plus mine is built in electronic guage.. no need for a control unit..

but dont copy me now lol

Edited July 17, 2007 by siddr20

[Yme33]

Now im in the same boat here, bought an Auto Meter gauge new Ultra series 2 1/16" and it says im hittin 7 psi low boost and 14 on high but stock gauge reads around 6 low and +7 high, now i'm running a supposed stock r33 with an 3' turb back with dump and pod filter, i noticed that my ECU seems to be an Nismo havn't pulled it out yet could this be the culprit?,

oh im running stock intercooler too, going to start a new thread and ask.

[khunjeng]

I agree they suck

Defi gauges FTW IMO PPL

[ashneel]

i also started noticing this today. got a sotck GTST seires 2 R33 running stock boost with only cat back exhaust. my stock boost gauge shows on full throttle running 5-6psi but my Apexi boost gauges shows 0.5bar (which im pretty sure is 7psi am i correct)

so imguessing my stock boost gauge is buggered??? or theres something wrong

[Rekin]

the stock boost gauge on the dash does not show numbers in PSI, it has a different measurement. mmhg or something?

[ashneel]

the stock boost gauge on the dash does not show numbers in PSI, it has a different measurement. mmhg or something?

ahhh ok but what i ment was the stock boost gauge shows -7 0 +7.

-7=vacum obviously

0 and +7 is boost so on a stock r33 that +7 would be full stock boost so when you put your foot down at full boost needle should be at +7 yes???

mine only goes between half way between 0 and +7.

iv been told the +7 is 7psi but like you said the stock boost gauge dosnt messure in psi something different so im confused.

this goes out to r33 owners. does you boost gauge read all the way to +7 on open throttle???

my Apexi boost gauge shows 0.5 bar on open throttle so im guessing thats 7psi. am i correct?

[Birnie]

No, if it's hits the +7 on the dash/standard gauge, that's more like 14psi

Its hould only go about half way for 7psi...so it's all good

BTW, i got a 2nd hand Blitz mechanical gauge of ebay deliver for about $20 and it's sweet as !

[ashneel]

No, if it's hits the +7 on the dash/standard gauge, that's more like 14psi

Its hould only go about half way for 7psi...so it's all good

BTW, i got a 2nd hand Blitz mechanical gauge of ebay deliver for about $20 and it's sweet as !

thanks for that dude. that clears up everything WOOT

[sky_2.0T]

brand new autometer gauge is off boost by 2-3 lbs! lol