XxMerlinxX

iTrader: (2)

If you could only have 3 gauges to mount in your car, what would they be?

idsigloo

Boost, EGT or AFR, Coolant

GoodfellaFD3S

iTrader: (213)

My setup:

lovintha7

Oil press, Coolant temp, AFR

GoodfellaFD3S

iTrader: (213)

Just as a footnote :

The stock oil pressure gauge works perfectly with a new sending unit.

Most of the FD guys run Power FCs, which gives coolant temp on the commander.

GoRacer

iTrader: (2)

You can view wtr temp, boost and I forget what else on the commander but it's in metric. I had a hard time remember the conversions. Which gauges would you actually benefit from? Look at the guages and ask yourself if you need that information. Which are critical? Fuel pressure would be nice for tuning and diagnosing but not critical in my opinion. Oil pressure? I'd rather know the oil temp. EGT? Well maybe if I had two but not critical. AFR, nice for tuning but i'd probably stare at it more and more getting paranoid of detonation.

My three would be:
1. boost.
2. Oil Temp
3. Water Temp

jacobcartmill

iTrader: (6)

boost, water temp, fuel pressure.

this is after you verify your AFR and/or EGT's of course...

EZFD

boost, AFR, water temp

smg944

iTrader: (34)

boost, afr, fuel pressure. as goodfella said the stock oil pressure guage is good, and coolent can be read on the pfc.

black93RX7

Primary:
boost
oil pressure
coolant

Secondary:
afr
egt
fuel pressure
oil temp

I have all the above gauges, they are very helpful for tuning.

Speed of light

iTrader: (8)

BOOST: I converted the stock oil pressure gauge to read boost. It is accurate, responsive and scaleable to whatever I want it to be. And it's already in the right place. (My engineering firm makes a module to do this, if anyone is interested.)

IMO, Oil pressure [esp on a rotary] isn't a major issue. So I use a pressure switch hooked up to the low oil warning light to double for loss of pressure.

Coolant
Oil temp -- useful for a rotary

EGT's and/or AFR
Fuel pressure (a low pressure warning lamp is a good alternative)

impactwrench

Radar detector

4CN Air

iTrader: (7)

AFR isn't going to help at all unless you're talking a complete WBO2 setup.

Coolant Temp
Oil Pressure (whether properly working stock or aftermarket)
Oil Temp

If you're single:
EGT

ikari899

same

G's 3rd Gen

iTrader: (11)

afr and fuel pressure. microtech dash displays the rest..

signofinfinity

afr, boost, and oil temp...

MakoRacing

iTrader: (12)

I have boost, fuel press, oil temp...power fc tells me the rest

diabolical1

iTrader: (3)

EGT, boost, oil temperature

PDViper77

iTrader: (9)

AFR, Boost, Fuel Pressure, but I also have Oil temp, Oil pressure, EGT, and Intake Air Temp.

swif

iTrader: (4)

Bring this thread back up as I am wondering if stock oil and coolant temp gauges are linear or if they are set to read in stages?

If linear I would imagine the 4 gauges to add would be boost, fuel pressure, AFR and dual EGT

gracer7-rx7

iTrader: (16)

coolant is not linear. There are some old threads on linearization of the stock gauge if you want to search for it.
oil pressure is accurate / linearized

Montego

iTrader: (1)

IMO fuel pressure gauge is mainly for diagnostic purposes rather than prevention. Unlike boost, water, AFR, and EGT.

mr2peak

Tachometer
Oil temp

rx7srbad

I got rid of the analogue gauges/binned them. You wont be able to react fast enough to prevent any kind of failure. Invest in a modern ecu, which can control all parameters seamlessly in the background and engage engine protection strategies within 0.5s/faster if required.

Plus the tablet is portable and can be removed to give a cleaner oem look, while you enjoy the driving experience without having to worry about monitoring gauges manually, while driving at speed and not crashing!