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924 Carrera GTS replica tach/boost gauge
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Raceboy  



Joined: 01 Mar 2004
Posts: 2305
Location: Estonia, Europe

PostPosted: Fri May 13, 2016 11:09 pm    Post subject: 924 Carrera GTS replica tach/boost gauge Reply with quote

Made 924 Carrera GTS replica tach/boost gauge out of 924S/944 tach with MPG gauge. Porsche also used same hardware, just different electronics and faceplate. I had the custom backround made and printed onto UV resistant matte surface. Later may do it properly with silkscreen print.

I used 911 speedo needle (it is longer on the opposite side and matches 924S MPG gauge needle better than original needle).

Click for a photo: https://scontent-arn2-1.xx.fbcdn.net/v/t1.0-9/13151995_1034961566582857_957268573368076216_n.jpg?oh=dcef919a7964e882105f17f30cd66cb9&oe=57E6998D
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'83 924 2.5 16v Turbo, 470hp
'67 911 Irish Green hotrod, 2.4S
'89 944 S2
'91 944 S2
'78 924 Carrera GT project
'78 911 SC 2.5 ss Turbo
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche


Last edited by Raceboy on Fri May 13, 2016 11:10 pm; edited 1 time in total
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ideola  



Joined: 01 Oct 2004
Posts: 15511
Location: Woodstock IL

PostPosted: Fri May 13, 2016 11:10 pm    Post subject: Reply with quote

That is *way* cool!

How did you do the boost sensing part?
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15 981 GTS | 88 924S SE | 82 931 Holbert | 82 931 Rallye | 81 937 | 81 Euro 931 | 81 Weissach | 80 US 928 | 80 US 931 '941' | 80 US 931 | 80 931 GTR | 79 Sebring | 78 D-Prod Replica | 78 w/D-Prod kit | 78 Poli-Form | 78 Limited Edition | 77 Martini
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Raceboy  



Joined: 01 Mar 2004
Posts: 2305
Location: Estonia, Europe

PostPosted: Fri May 13, 2016 11:12 pm    Post subject: Reply with quote

I left it like it is, VEMS is controlling the needle. But lot is ahead, I want to get it working with original MPG hardware, last resort is to use separate 924 tach circuitry outside of the tach housing (bulky and not so elegant solution).
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'83 924 2.5 16v Turbo, 470hp
'67 911 Irish Green hotrod, 2.4S
'89 944 S2
'91 944 S2
'78 924 Carrera GT project
'78 911 SC 2.5 ss Turbo
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche
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Raceboy  



Joined: 01 Mar 2004
Posts: 2305
Location: Estonia, Europe

PostPosted: Fri May 13, 2016 11:22 pm    Post subject: Reply with quote

As a comparison, here's original GTS tach:

https://scontent-arn2-1.xx.fbcdn.net/v/t1.0-9/11188302_831200203625662_8474099734312981792_n.jpg?oh=2e18e5e2f2f3bbe15cb0da572432170b&oe=57DBD947
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'83 924 2.5 16v Turbo, 470hp
'67 911 Irish Green hotrod, 2.4S
'89 944 S2
'91 944 S2
'78 924 Carrera GT project
'78 911 SC 2.5 ss Turbo
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche
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ideola  



Joined: 01 Oct 2004
Posts: 15511
Location: Woodstock IL

PostPosted: Fri May 13, 2016 11:39 pm    Post subject: Reply with quote

Brilliant, Peep. I want one!
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15 981 GTS | 88 924S SE | 82 931 Holbert | 82 931 Rallye | 81 937 | 81 Euro 931 | 81 Weissach | 80 US 928 | 80 US 931 '941' | 80 US 931 | 80 931 GTR | 79 Sebring | 78 D-Prod Replica | 78 w/D-Prod kit | 78 Poli-Form | 78 Limited Edition | 77 Martini
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morghen  



Joined: 21 Jan 2005
Posts: 7910
Location: Romania

PostPosted: Sat May 14, 2016 1:03 am    Post subject: Reply with quote

Way cool, i'd love one like that but to work without VEMS
I made a speedo that fits inside the 924 dash and looks like the 924 one but uses the 944 gearbox sensor instead.

Was planning to use that early tacho to try to fit a boost gauge and do a GTS replica tacho but you beat me to it

https://goo.gl/photos/yQFjASpwXLRPv6Vx9
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Paul  



Joined: 02 Nov 2002
Posts: 9349
Location: Southeast Wisconsin

PostPosted: Sat May 14, 2016 1:01 pm    Post subject: Reply with quote

Glad you got it to work, it's been a year since you received it, I was beginning to wonder...
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977


Last edited by Paul on Wed Jun 01, 2016 10:28 am; edited 1 time in total
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Raceboy  



Joined: 01 Mar 2004
Posts: 2305
Location: Estonia, Europe

PostPosted: Sat May 14, 2016 5:31 pm    Post subject: Reply with quote

I focused on it again about a month ago after I had other priorities during winter

Thanks Paul!
_________________
'83 924 2.5 16v Turbo, 470hp
'67 911 Irish Green hotrod, 2.4S
'89 944 S2
'91 944 S2
'78 924 Carrera GT project
'78 911 SC 2.5 ss Turbo
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche
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WEASEL149  



Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield

PostPosted: Mon May 16, 2016 7:42 am    Post subject: Reply with quote

Very cool!
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1979 UK 932
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Dutch924-racer  



Joined: 23 Jul 2007
Posts: 1007
Location: The Netherlands

PostPosted: Mon May 16, 2016 3:59 pm    Post subject: Reply with quote

Great, good work!
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937 trackday car
Series 2 engine
951S turbo and intercooler
937 DITC
Fast road camshaft
Forge recirculation valve + boost controller
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Magnus  



Joined: 01 Sep 2015
Posts: 14
Location: Sweden

PostPosted: Sat May 28, 2016 4:49 pm    Post subject: Reply with quote

Very nice!!
Do you know how to modify the 924 tach to work with a Link ecu, beeing a high lewel tach it doesnt work for me...
Thanks

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931 -81 20vt Restomod build in progress...
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Raceboy  



Joined: 01 Mar 2004
Posts: 2305
Location: Estonia, Europe

PostPosted: Sun May 29, 2016 5:52 pm    Post subject: Reply with quote

I use regular low level output which just has 1k pullup to 12v, it is already built inside ECU.

You can just use some 1k resistor and connect it between tach wire and 12v, should work.
_________________
'83 924 2.5 16v Turbo, 470hp
'67 911 Irish Green hotrod, 2.4S
'89 944 S2
'91 944 S2
'78 924 Carrera GT project
'78 911 SC 2.5 ss Turbo
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche
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gegge  



Joined: 27 Jul 2007
Posts: 1029
Location: Sweden

PostPosted: Mon May 30, 2016 7:47 pm    Post subject: Reply with quote

Where did you get the tachodial made?

http://www.heiler-tachodesign.de

or

http://neutec-tacho-design.de/
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Carl Fredrik Torkildsen

924 turbo -81 Carrera GT clone LSD Coilovers
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black with low ET "Phonies"
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Raceboy  



Joined: 01 Mar 2004
Posts: 2305
Location: Estonia, Europe

PostPosted: Wed Jun 01, 2016 5:28 pm    Post subject: Reply with quote

My good friend designed and drawed it (he is a designer my profession), I just gave him 924S tach for dimensions and sent GTS tach photo and purchased the font used on these tachs (that cost ~20 euros).

When the vector drawing was finished I contacted another friend of mine who works in advertising company and she printed the dials on matte UV resistant sticker.

I will probably make a new set with a bit smaller numbers and when I am satisfied maybe will print it on the spare 944 tach face in silkscreen print like original.
_________________
'83 924 2.5 16v Turbo, 470hp
'67 911 Irish Green hotrod, 2.4S
'89 944 S2
'91 944 S2
'78 924 Carrera GT project
'78 911 SC 2.5 ss Turbo
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche
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ideola  



Joined: 01 Oct 2004
Posts: 15511
Location: Woodstock IL

PostPosted: Sun Jan 29, 2017 8:48 am    Post subject: Reply with quote

Pix missing...raceboy, can you fix the links?
_________________
15 981 GTS | 88 924S SE | 82 931 Holbert | 82 931 Rallye | 81 937 | 81 Euro 931 | 81 Weissach | 80 US 928 | 80 US 931 '941' | 80 US 931 | 80 931 GTR | 79 Sebring | 78 D-Prod Replica | 78 w/D-Prod kit | 78 Poli-Form | 78 Limited Edition | 77 Martini
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