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> What gauges would you install for an air cooled 6?
pcar916
post May 22 2013, 05:18 PM
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Mine is similar to Eric's except with a different tach. I agree that the 911 combo gauge is great, but for a street car a fuel gauge might be useful. I'm adding one elsewhere on the dash. It's not one I pay attention to very often.


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Eric_Shea
post May 22 2013, 08:13 PM
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QUOTE(Dave_Darling @ May 22 2013, 05:10 PM) *

And you can separate out the low fuel warning light and run it to another light somewhere on the dash. Like the unused light area (notionally for Sporto overtemp warning, I think!) in some versions of the two-way combo gauge. Or just drill a hole and use one of the 75-76 warning lights in the regular part of the dash.

That's what I was going to do before I finally went with the triple gauge.

--DD


I had Palo Alto add a low fuel light to my VDO gauge. Cheap.
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Dave_Darling
post May 22 2013, 10:33 PM
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Yes, but if you put the fuel gauge where the radio was, or down in the center console, it is farther out of your range of vision. A nice light in the gauge panel is much closer to your regular scan of the instruments, and gives you a very quick read that you need gas NOW.

--DD
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7TPorsh
post May 22 2013, 11:41 PM
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eitnurg
post May 23 2013, 01:17 AM
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What about converting the boost pressure gauge on a 930 tach to be a fuel gauge? Or is that too expensive? I know these tachometers are not exactly common, but they are out there and we're not talking big numbers of them. The tach has to be changed anyway.
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billh1963
post May 23 2013, 05:45 AM
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QUOTE(eitnurg @ May 23 2013, 03:17 AM) *

What about converting the boost pressure gauge on a 930 tach to be a fuel gauge? Or is that too expensive? I know these tachometers are not exactly common, but they are out there and we're not talking big numbers of them. The tach has to be changed anyway.


That sounds interesting.

I really like the idea of keeping everything in front of me. I don't like the idea of having to scan all over the car to read gauges. Lights that are bright enough to stand out in your peripheral vision are very useful for "engine death" scenarios (oil pressure, air flow)
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Eric_Shea
post May 23 2013, 07:05 AM
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(IMG:style_emoticons/default/agree.gif) Call Hartmut at Palo Alto and ask. You'd be surprised.
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JmuRiz
post May 23 2013, 08:05 AM
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Maybe I'll have to contact to see if it's a surprise how much it costs or how little is costs (IMG:style_emoticons/default/biggrin.gif)
It is a cool look, I've seen it done before.
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stugray
post May 23 2013, 08:20 AM
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QUOTE
if the fan belt throws... the engine cooling fan stops

Brant, if the belt comes off the alternator stops spinning, but the fan keeps going.

However you are still right. If your fan comes completely off the crank (as we saw at the races last weekend,), the ALT light will tell you that there is something wrong immediately ;-)

That saved at least one engine in the last week.

Stu
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IronHillRestorations
post May 23 2013, 08:40 AM
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I'm a big fan of using the 930 tach and having the boost gauge converted to a fuel gauge. I did this in my 1st coversion back in '95, and have had a few gauges done for customer cars. It makes for a very clean dash. For a street car I don't like pods under the dash, and I prefer the interior without the center console.
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Dave_Darling
post May 23 2013, 11:48 AM
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QUOTE(eitnurg @ May 23 2013, 12:17 AM) *

What about converting the boost pressure gauge on a 930 tach to be a fuel gauge?


It's been done a number of times. Works pretty well, too. Might be more expensive than a dash-mounted fuel gauge to find an appropriate 930 tach, though.



QUOTE(stugray @ May 23 2013, 07:20 AM) *

Brant, if the belt comes off the alternator stops spinning, but the fan keeps going.


Depends on the 911 engine. With most of them, it's a single belt for both, and if the belt comes off the drag of the alternator stops the fan quickly. Not what you want with an air-cooled motor.


I know of race cars that have a horn set up to trigger if either the oil or alt light go on, but not if both do. The horn stays quiet on start-up (except a bit of noise during start-up because the oil and alt lights usually don't go out exactly in sync) but lets you know right away if you have a problem while driving.

--DD
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brant
post May 23 2013, 11:54 AM
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QUOTE(stugray @ May 23 2013, 08:20 AM) *

QUOTE
if the fan belt throws... the engine cooling fan stops

Brant, if the belt comes off the alternator stops spinning, but the fan keeps going.

However you are still right. If your fan comes completely off the crank (as we saw at the races last weekend,), the ALT light will tell you that there is something wrong immediately ;-)

That saved at least one engine in the last week.

Stu


true for the 4cylinder
but on the 6cylinder the belt drives the fan
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SirAndy
post May 23 2013, 12:38 PM
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QUOTE(billh1963 @ May 21 2013, 06:20 PM) *
What gauges would you install for an air cooled 6?


(IMG:http://www.914world.com/bbs2/uploads/post-14538-1369266028.jpg)


(IMG:style_emoticons/default/driving.gif)
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eitnurg
post May 23 2013, 12:44 PM
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QUOTE
but on the 6cylinder the belt drives the fan


True up to and including the 3.2. But ISTR on my 964 there were 2 belts (assume no a/c), one drives the alternator, one drives the fan. There must have been a warning light in case the fan belt broke; but I can't remember that far back.
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brant
post May 23 2013, 01:04 PM
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QUOTE(eitnurg @ May 23 2013, 12:44 PM) *

QUOTE
but on the 6cylinder the belt drives the fan


True up to and including the 3.2. But ISTR on my 964 there were 2 belts (assume no a/c), one drives the alternator, one drives the fan. There must have been a warning light in case the fan belt broke; but I can't remember that far back.



I know of 1 914/6 that used to race 20 years ago
the owner had installed some factory race part, air sensor?
I'm not familiar with how it worked, but he said it was something from a 908 or 917.... some kind of warning light on the dash lit up if the fan belt broke and the air speed for cooling dropped....

I think he ran no alternator, and assume those factory race cars may have developed this sensor for the same reason.
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pcar916
post May 23 2013, 08:31 PM
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QUOTE(eitnurg @ May 23 2013, 01:44 PM) *

... one drives the alternator, one drives the fan. There must have been a warning light in case the fan belt broke...


On the 993 (and likely the 964 as well) there's an idler pulley with a switch in the base that triggers the indicator light if it's belt disappears. When that engine is bolted into a 914 the double-row crank-pulley is replaced with a single pulley and the fan/alternator pulley hub is replaced with solid hub as well.
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stugray
post May 24 2013, 08:35 AM
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QUOTE
true for the 4cylinder
but on the 6cylinder the belt drives the fan


Sorry, forgot the topic was specific to 6 cyls.
I have 4 cyl on the brain since I am assembling my instrument cluster right now.
I decided on:
Stock Speedo & Tach.
VDO Oil press & temp
LC-1 AFR
Dual EGT
Voltmeter
Oil press warning light
Alt light
This is for a race car, not street, so I dont need fuel gauge.

Stu
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ChrisFoley
post May 24 2013, 08:57 AM
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QUOTE(brant @ May 23 2013, 02:04 PM) *

some kind of warning light on the dash lit up if the fan belt broke and the air speed for cooling dropped....

I use an HVAC pressure switch connected to a hose on the shroud and a light on the dash to warn if my fan belt comes off of the flat fan cooling system.
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Mark Henry
post May 24 2013, 02:29 PM
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I'm thinking of making this into a combo gauge, pretty sure the gas gauge would fit in the top and then I'll mount the idiot lights in the bottom.
I wish I could just get the printing decals, I can do the rest. I think I'll just make a blank face, use the temp/pressure numbers and make the gas gauge with basic markings.


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