924Board.org

[B]

hey everyone

I was thinking that it might not be a bad idea to add a vacuum gauge and air/fuel mixture gauge.

I wondered if anyone had any thoughts on any specific brands or types (a/f -) - there seem to be quite a range of prices on some and I did not know how much that mattered in the end.

Any thoughts and opinions would be greatly appreciated

thanks
Sean
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1979 924 n/a
BAE turbo
5-speed snailshell

[ideola]

I've purchased several times from eGauges.com. They're also a local business (to me)...good prices, selection, and service.

I personally like the VDO Vision and VDO Cockpit Black gauges because they are a very good match for the stock gauges. I have one of the Vision vac gauges in my NA, and I have a couple of their boost gauges as well as an oil temp gauge which I sent to a place in California to have the lettering matched to the green letters on the 1980 931 gauges.
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erstwhile owner of just about every 924 variant ever made

[B]

thanks - will the type of A/F gauge matter ? - narrow or wide?

thanks
Sean
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1979 924 n/a
BAE turbo
5-speed snailshell

[ideola]

I'm not aware of any analog wide band AFR gauges. The AFR gauge needs to be matched to the sensor. Narrow bands are basically useless & pointless from a tuning perspective.
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erstwhile owner of just about every 924 variant ever made

[924-76]

My choice in black: http://www.aemelectronics.com/gauges-26/analog-gauges-37/wideband-air-fuel-gauges-42/
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1976 924 N/A ROW SOLD
1980 931S
1981 931 Part car RIP

[fiat22turbo]

A vacuum gauge isn't a bad idea, especially since the clock is a bit of a waste IMHO Just drop in whichever one you like best where the clock goes and you'll be good to go.

I'm not sure about the A/F meter gauge unless it logs the data somehow.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[emoore924]

Great googlie mooglie, that's over $200 clams for a gauge?

Besides data logging, better fry my burger too.

[B]

yes they do get a little steep - by the time you get the oxygen senser(?), connection to exhaust, sender and gauge it can get expensive.

I was not sure if you can get a sensor and sender made for any newer car or if there is a specific one we need for our cars?

Some of the ones made for the average sedan are not too bad if they will work(?)

the vacuum gauge is reasonable, I was not sure if I wanted to mount one or just get tester. I kind of like the idea of being able to monitor some of these under driving conditions just to have a little more input if something isn't quite right.

Is there a specific A/F unit we should use besides being wideband, or can it be for any newer car?

Sean
_________________
1979 924 n/a
BAE turbo
5-speed snailshell

[ideola]

Sean, your car is turbo-charged, right? Rather than a vac gauge, I think you should get a boost gauge that shows both vacuum and boost. Regardless, having a permanently installed vacuum gauge is extremely helpful on these older cars because it can provide early warning of developing vacuum leaks (which these cars are prone to).

RE: the wideband, you just need the regular Bosch wideband sensor, should screw right in to the stock location.

Again with the AFR, even though you may not be able to "manually" log what is going on at all times, I still think having one permanently mounted in the car is a good idea because it will give you an idea of what's going on and allow you to get an idea of what your baseline is / should be. If you see it change over time, then you know something may be going amiss with either fuel delivery (e.g. a leaking CSV would cause your readings to go rich).

If you're not stuck on matching the stock VDO gauges, I really like the PLX Devices boost and AFR gauges because they come with little modules that can be configured to data log, which is a very useful feature for a car that is still running CIS and hasn't been converted to EFI. I've installed them in the 941, although I have not yet taken advantage of the data logging feature.
http://www.plxdevices.com/wideband.html

I think I spent around $400 all in for my PLX set up. It is a little pricey, but the ability to data log if I want to was worth the extra $$$ for my situation.
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erstwhile owner of just about every 924 variant ever made