What Should Gauge Number 3 Be?

[Hybrid905]

Hey guys im hopefully doing a triple gauge conversion in my r34

im planning to get some prosport gauges and i know i want an A/F ratio and a Volt gauge so that leaves one more gauge.

as my car is NA i dont need a boost gauge so i was thinking an EGT gauge or water temp but the problem is they only make them in Farenheit.

so should i just go with that as its not to hard to do the conversion from farenheit to celcius im my head, as i think the gauges are really cool and are meant to be quite accurate or should i maybe get something like a fuel pressure gauge.

some opinions would be great.

thanks

Edited August 12, 2010 by Hybrid905

[lachlanw]

i hope your not getting a a/f gauge that hooks to the factory narrow band 02 sensor .

and really what do you want an egt gauge for ? chances are your na wont even get onto the scale on the gauge .

also a volt gauge is next to useless . it tells you if the alternator is working or not . and you have a light on the dash for that .

get oil temp ,oil pressure ,water temp , or vacuum ,

[Hybrid905]

i hope your not getting a a/f gauge that hooks to the factory narrow band 02 sensor .

and really what do you want an egt gauge for ? chances are your na wont even get onto the scale on the gauge .

also a volt gauge is next to useless . it tells you if the alternator is working or not . and you have a light on the dash for that .

get oil temp ,oil pressure ,water temp , or vacuum ,

why something that hooks up to the narrow band so bad sorry for my ignorance and yeah i know volt gauges arnt that usefull but doesnt r34 have stock oil pressure and isnt the engine temp the oil temp and sorry again for my ignorance this is why i ask the questions :-)

[Hybrid905]

they make a wideband o2 if that helps

[jrm]

why something that hooks up to the narrow band so bad sorry for my ignorance and yeah i know volt gauges arnt that usefull but doesnt r34 have stock oil pressure and isnt the engine temp the oil temp and sorry again for my ignorance this is why i ask the questions :-)

The temp gauge in the standard cluster is water temp - and its pretty much a 'cold' 'normal' 'hot' type - it doesnt give much more than that. Anything from about 65C -> 95C and it'll sit in the middle on 'normal'.

What people have already said is that an AF gauge with the standard narrow band o2 is near useless - the way it produces voltages, it only really knows about 'lean' 'stoichiometric' and 'rich' - you won't really get any useful information out of it.

If it were me, I'd probably go water temp, oil temp, and maybe vacuum. You should have oil pressure in the standard gauge cluster already. To be honest, it's a lot of money and expense for gauges that aren't really going to be all that useful unless you're taking the car out on the track.