Autometer or dynotune gauge?? - Honda Prelude Forum

LudedudeSi · 12-16-2002, 04:15 PM

Ok my Gf is going to get me an air/fuel gauge for christmas but she called the local shop and they told her that the autometer gauge is a waste of money of you are running nitrous because it isnt accurate. so should i not get that one? which would you buy? thanks a lot guys! later

Padge · 12-16-2002, 04:20 PM

its a waste of money?!

thats not what i wanna hear, i hope thats not true

wreckdiver · 12-16-2002, 05:50 PM

I love my digital from Dynotune, extremely accurate. The numbers follow my adjustments with the Apexi. It too, is only accurate at WOT, Prelude's closed loop operation at partial throttle doesn't let ittell you anything.

laughin2.2 · 12-16-2002, 05:51 PM

Why not get an hour of dyno tuning? Wideband O2 sensors are nice.

MJShelgosh · 12-16-2002, 06:11 PM

I recommend the dynotune guages as well.. I only have the nitrous pressur guage.. but you cannot beat the digital accuracy.. I love it..

LudedudeSi · 12-16-2002, 08:03 PM

hmmm well the thing is my girlfriend only has 60 bucks and that wont by me the speedshop digital gauge. will the autometer work ok?

red98lude · 12-16-2002, 09:27 PM

Quote:

Originally posted by LudedudeSi
hmmm well the thing is my girlfriend only has 60 bucks and that wont by me the speedshop digital gauge. will the autometer work ok?

Both gauges are equally useless in my opinion. They are only accurate at WOT as previously stated. Both of the gauges are much more accurate when used with a wideband O2 sensor. If you are getting gauges for nitrous get a bottle mounted pressure gauge, EGT gauge, and a fuel pressure gauge. I you have a lot of money laying around get an A/F with wideband O2 sensor. My A/F ratio gauge is worthless and will be replaced when I ge the chance.

LudedudeSi · 12-16-2002, 09:31 PM

how are the gauges useless? i want this to be as safe as i can get it and i DO NOT want to run lean.im trying to make this a stealth install so the only gauges i planned on getting are the nitrous pressure gauge and a/f gauge. this is nerve racking.

Padge · 12-16-2002, 10:35 PM

what do you mean "with a wideband o2 sensor"?

What does the full sweep, electrical autometer one come with?

laughin2.2 · 12-16-2002, 11:13 PM

Quote:

Originally posted by Padge
what do you mean "with a wideband o2 sensor"?

It measures the oxygen content of your exhaust at every rpm and tells if you are rich or lean.

vector4 · 12-16-2002, 11:48 PM

Which is more important A/F or EGT. I plan on getting both, just not at the same time.

Padge · 12-17-2002, 12:01 AM

i think the consensus is EGT

wish i knew that before

oh well, when i get it i can install it into the tweeter, that looks nice.

MJShelgosh · 12-17-2002, 01:59 AM

Quote:

Originally posted by laughin2.2

It measures the oxygen content of your exhaust at every rpm and tells if you are rich or lean.

And a wideband 02 is more accurate.. due to the voltage it puts out... a typical voltage on a normal 02 is something like 1-5 volts.. ( 1,2,3,4,5,etc... ) which gives you an indication.. a wideband.. is as accurate to .1 volts up to 5 volts ( i.e. .1.2.3.4.5.6.7.8.9 ---> 1.0 ----. 5.0 volts etc. etc. ) .. I believe... so you can see the accuracy potential it has... but.. the drawback.. a wideband 02 is $$$$

LudedudeSi · 12-17-2002, 06:44 AM

so whats the deal now? should i buy the egt gauge or air/fuel gauge? how do you benefit from the egt gauge?

red98lude · 12-17-2002, 09:37 AM

The EGT gauge will let you know it you are running lean since your EGT will be very high if you don't have enough fuel. The A/F gauge is accurate at WOT when you spray nitrous so it will be somewhat effective for letting you know if you are running lean. I would go with the fuel pressure and EGT but you can get the A/F gauge if you really want it.

LudedudeSi · 12-17-2002, 10:32 PM

Well from all this talk im about to just say screw all the gauges and just get the nitrous pressure gauge. do i really need to worry about running lean on a 50 shot? im just so paranoid about this.

laughin2.2 · 12-18-2002, 09:21 AM

Quote:

Originally posted by LudedudeSi
do i really need to worry about running lean on a 50 shot?

You have to worry about running lean on any size shot. The point though is that if you tune your car on specific fuel and nitrous pressures you will always run fine. Just check your fuel pressure and nitrous pressure before each run.