Since there is already a similar thread on installing this in UTH, I thought I'd "hide" this one here and bring a bit of traffic to our regional forum. This one involves the stand alone with gauge. The other thread involves hooking it up to the AEM EMS (no gauge).
Thanks to "Tuner 4" and Tunerworks of Calgary for the quick service and great price on this (shameless plug).

I replaced this:

With this:



To go with these:

Rather than routing the cables through the underdash and out the big grommet by the battery, I decided to route it out the driver's door near the windshield:

Zip tie the lines along the top rear of the engine bay:


For a stand alone with gauge, you only need to use 2 of the wires - the RED one for power and the BLACK one for ground. The other are low voltage outputs for an aftermarket ECU or the stock one if you choose to eliminate the stock O2 sensor. I kept the stock sensor.
Since I already have a relay handy in the engine bay for the Vortech water pump, I simply wired the power wire "in parallel" to the HOT wire coming out of the relay going to the water pump. This allows the gauge to only come one when ignition is on.

I grounded the BLACK wire to the frame ground in the engine bay:

If you don't have an existing relay, you can go directly off the "HOT with ignition" tap at the fuse panel (see the red, yellow, red wires? It's the lowest red one):

For ground, there is a ground bolt near the fuse box and on the frame. You can see the "octopus" of black wires attached to this bolt. Tap into any of these black wires for ground:

Anyway, back to the engine bay for the O2 sensor cable routing. This cable has run along side of the main wire bundle that contains the power, ground, and output wires. Once zip tied near the battery heat shield, it snakes its way down to the empty bung on my Toda header:

Here, you see it screwed into the header:

Made myself a little bracket to prevent the sensor harness and wiring bundle from moving around:

If you don't have an extra bung in your header or if you are using the OEM header, you'll have to punch a hole in it and weld on the supplied bung:


All in all, I'm pretty happy with this gauge, although now that I have it, I've just confirmed to myself that I really didn't need it. I got it out of curiosity and because I like gadgets and gauges (soooo purdy! ). Anyway, I've always been of the belief that with a blown engine, as long as you know how to "read" the spark plugs and learn how to corroborate and interpret the "blinky lights" of a narrow band a/f gauge like the one I had (Autometer), you can be fairly confident that the engine is running safely. My reading of 12.2 a/f at WOT throttle in upper rev band confirms this philosophy. I don't ever plan to "tune" my car so this gauge is not needed for that purpose. The thing has been running extremely well for nearly 2 years. With the confirmation of a/f, I'm not messing with a good thing.

 

those are awsome looking guages!

 

went over your list of mod's and wow. what's next? you have to post some pic's showing everything and the rims when they arrive.

 

Looks good Dave. You should write a technical manual on the S2000, you would sell a bunch. I would be curious to know what kind of power your car is putting to the wheels. We should sell guesstimate's and see who wins the jackpot, part of the jackpot will pay for the dyno time.

 

KEDO, as you've figured out, I like to "tinker" with my car. My only other possible future plan is a new front bumper - maybe an '04 bumper and lip or the upcoming clone of the ING+1 front bumper. I also have this HUGE airhorn that I got off our firetruck. I'm trying to figure out a way to adapt it to the S.
I'd also like to make some sort of gauge "canopy" for the two on the dash. Within the next year or so, I'll be doing a new clutch (OEM disc, ACT PP and maybe a lightweight Comptech flywheel). And I've been tossing around the idea of doing a pump and cooling rad for the diff fluid and maybe even the tranny.

LUV2REV, I've toyed with the idea of dynoing my car for a while now, but I've just not gotten enough of a desire to do so. I like the modding for the sake of "hands on" and I don't do it necessarily to add power. It feels strong and it drives real well. Beyond that, I've just not actually cared enough to get a number on paper. I've even thought about going to the drag strip but again, this kind of activity is behind me in my mis-spent youth.

 

Wow, nice writeup.

One thing I'd love to see you do is tie all of the gauges together into a custom pod that really flows with the S2000 interior. Possibly a 4-gauge pod mounted somewhere in the centre of the dash?

 

[QUOTE]
i can only imagine what an air horn would do and the reaction you would get. now if you can get a removable revolving light for the hardtop to go with it.

 

That would be great. I somehow think the expense would not justify the end.

 

[quote=KEDO' date='Feb 8 2005, 05:32 PM] I hooked up this one horn to my compressor in my garage. The noise just about blew my eardrums out. I just need to figure out how to get a good supply of air in an S2000.
The dept. shop has old spare light bars laying around but I think the "authorities" might frown on this mod although it might be worth a good chuckle to rig one up for an Open House day or something. If I ever do it, I'll be sure to post pics up.