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Eliza · Posted: Sat Mar 05, 2022 5:08 pm Post subject: My DIY boost gauge

Hi all,

I've been wanting a boost gauge in the turbo. But I wanted to keep the center console gauges, and didn't really like the idea of placing the gauge in the speaker grille, or an A pillar pod...

After seeing the 930 tach with integrated boost gauge, I knew what I wanted. It's now waiting for installation and has tested to work with both pressure and vacuum.

Sometimes I wonder why I can't simply go and spend my time clothes-shopping, like other women do

- this was FIDDLY! But worth it, I can't wait to install it and see it doing its job!

Eliza

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1985 924 NA RoW
1981 931 S2 RoW

kondzi · Joined: 02 Jul 2018 Posts: 494 Location: Poland/EU

Cool. I have the 944 tach on shelf waiting for the same mod. Did you make the dial face by yourself?
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Konrad
'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
'81 931 RoW (TBD)
'81 Ford Capri 2.8i (factory specs)
'79 Ford Capri 2.9 (heavily modded)

924RACR · Posted: Sat Mar 05, 2022 10:07 pm Post subject:

Everything is important!!

Nice work.
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

Such a cool project!
_________________
Supercharger and EFI kits
https://www.the924.com

Eliza · Posted: Sun Mar 06, 2022 4:52 pm Post subject:

Thanks all!

Konrad, it was you who inspired me to do this! I bought the 944 tach with the econometer as a starting point too, only couldn't find the specs for the econogauge motor so finding a sensor to drive it seemed a hit-and-miss.

I ended up buying a 25 EUR standalone gauge off of Ebay and Frankesteined it into a 924S tach I still had lying around. There's a bit less stuff in there which gives a bit more room to.. well, Frankenstein.

The gauge I bought has its own external "sensor" wired up. That sensor has a tube connector, so I got the accuracy of a manual gauge plus the SMD circuit board of an electric one - best of both worlds.

I even found the correct true type font for the gauge face digits online so I could make the face to match the speedo.

Labour of love, perfect for a few days' fun in the warm kitchen

while it was too cold to do anything useful outside.

Eliza
_________________
1985 924 NA RoW
1981 931 S2 RoW

bureau13 · Joined: 07 Sep 2017 Posts: 495 Location: South Florida

Very cool! Seems way better than clothes shopping to me, but what do I know...

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1982 931
1986.5 Silver 928S
2008 Volvo XC90 (Daily)

Past lives (I miss them all):
2007 Hummer H3 (Timing chain guide failure)
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)

peterld · Posted: Tue Mar 08, 2022 10:01 pm Post subject:

Just love your work Lizzie...
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80/81 932/8 ROW

Eliza · Posted: Thu Mar 10, 2022 3:53 pm Post subject:

Tha-hanks!

_________________
1985 924 NA RoW
1981 931 S2 RoW

Gatornapper · Joined: 23 Oct 2021 Posts: 294 Location: VA

Eliza -

Love your work - it's a masterpiece.

Can you tell us the gauge you bought to put in the 944 gauge? With the external sensor? Are they still available?

I may want to follow your lead.

GN

Eliza · Posted: Thu Mar 17, 2022 4:04 pm Post subject:

Reveal my sources, you mean?

Sure, but give me until the weekend. I'm off to work this minute, I'll come back with more info ( including one possible glitch of my Frankenstein gauge that maybe somebody may be able to get out of the way for me... would be a shame if that project didn't take the last hurdle

).

Eliza
_________________
1985 924 NA RoW
1981 931 S2 RoW

Eliza · Posted: Mon Mar 21, 2022 3:32 am Post subject:

So... here's the link to the gauge I bought. Initially ordered what looked exactly the same from Evilbay, but the seller cancelled my order for whatever reason. So I looked on Amazon, and bought it there. Delivered within 3 working days, price was 24 EUR. Received it Feb 24.

https://www.amazon.de/gp/product/B08QRQV5Q5/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Currently, another 9 in stock

.

I choose this because I wanted a 110 to 120 degree sweep so the needle wouldn't interfere with the tach needle. Most boost gauges have a 270 drgree sweep - more readable no doubt but not for where I wanted it to go

Eliza
_________________
1985 924 NA RoW
1981 931 S2 RoW

Mike9311 · Joined: 14 Dec 2004 Posts: 1798 Location: Chicago-ish

Love this. Not everyone has VEMS or Megasquirt to control
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1980 931 since 1989
1981 Ideola 931 Club Sport
1982 931 Entwicklungsfahrzeug
1979 924 NA ohne 650 mit 471
1982 931 Red Resurrection - 951 IC
1982 931 parts car / resurrection?
1980 924 NA (R&D lightweight)
1982 931 wana-be GTR race car