No you tap the manifold

 

My vote is for boost and wideband, I have had all the others before but after first week you stop really looking at them and imho you probably won't be able to save your motor in time either way if something goes wrong (esp if wot or something)

 

oh thanks

 

I think I am gonna go wideband oil pressure and boost

 

EGT's need to be understood to be useful. Know what you're looking at before you install a gauge

Oil Pressure is extremely important on a 4G63, in Evo 8's it seems especially. The manual even states that single digit oil pressures at idle are common.

Oil temp is a good one but not as crucial.

Boost is absolutely necessary. If you can afford a wideband, an A/F gauge is good, but again, without any experience or tuning device to fix problems, its useless.

Im a big fan of just using a unit to datalog and a boost gauge. Having too much to concentrate on will drive you nuts especially wile driving hard.

 

I recommend ...

1) 52mm boost gauge on the Steering colum

2) Zeitronic LCD display in the cubby pocket
(displays Lamba, AFR, EGT, and either Boost, TPS or User input)

 

I would have to say all of them

 

I would recommend a wide band and boost first thing. Other important things to monitor are knock (knock voltage), injector duty cycle, oil pressure, coolant temps, oil temps (road racing more so) and timing.

Once tuned, wide band, knock and the tach are all I keep my eye on while racing. The best setup is to have a threshold set for those items with warning lights. I use the same warning light for knock and wide band because if either threshold is exceeded it is time to lift (service engine light is nice and stealthy). A tach light is nice for consistent shifts and the rev limiter is your best friend. Listening and feeling are probably two of the best gages you already have. Once you learn the feel and sound of your car, you will often be able to tell how your car is running. The more you can keep your eyes up on the track the better. When racing, all data should be logged and reviewed after each race if time allows. Doesn't hurt to log on the street if you are driving aggressively as well.

For drag racing and really any racing for that matter, one of the best gages you can buy is not even for the car. Having a pocket weather tracker comes in very handy if you want to tune for changes in the weather. Here is an example of one http://www.ambientweather.com/ke40hawestgr.html
This is especially true of running bracket races.

The last one that is often overlooked is a tire pressure gage.

 

I don't see how an oil pressure gauge is so high priority. Frankly, if you lose oil pressure, you'll know it quick. There is even a gauge light. Odds are very VERY unlikely that you will be looking at the gauge at that moment.

Oil temperature seems like a better indicator of what's happening over the long-term. Not that oil pressure isn't worthy of monitoring, but I'd place the temperature gauge in a higher priority.

 

boost and wideband..

 

really good point. anyone car to rebuttal this statement. i, myself am leaning towards boost, oil temp, and water temp. but im not sure yet.

 

this really depend on how much you want to watch and how many gauges you really want to install...

boost
wideband
oil press
these 3 are vital! some say the oil press isn't important, but look around and see how many oil pump failures there have been then you decide. the "dummy" light in your cluster will come on when its way too late. at least when you see that needle dropping, you can save yourself some damage.
now if you had more room/$ i'd add:
oil temp
water temp
EGT

 

if i were to get the oil temp and oil pressure gauge, would both be tap'd in the same spot?

 

oil temp, water temp, and oil pressure

 

+1