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937 ignition challenge
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Carrera RSR  



Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
PostPosted: Mon Jul 14, 2014 6:47 am    Post subject: Reply with quote
Sorry, no alternative sensor has been found as far as I'm aware despite contact to Porsche, bosch and Siemens. Various tests on current crank sensor and no conclusive results on what signal the DITC box is looking for from the sensor, at least here in the UK. This path has been trodden dozens of times by people who need a sensor. Would love to see a solution as working ones will only become more rare
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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Carrera RSR  



Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
PostPosted: Mon Jul 14, 2014 7:52 am    Post subject: Reply with quote
Pic of the Mittelmotor distributor fitted on my engine can be seen on this thread http://www.924board.org/viewtopic.php?t=34690&postdays=0&postorder=asc&start=360 The black rubber bung on the front of it covers the mini USB socket for tuning advance and retard via laptop. This dizzy allowed me to run more boost without any knock compared to my stock S1 distributor. Engine runs more consistently and much smoother
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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peterld  



Joined: 10 Dec 2006
Posts: 981
Location: Noosa Heads QLD Australia
PostPosted: Mon Jul 14, 2014 6:38 pm    Post subject: Reply with quote
Currently a sensor on UK ebay for a hundred and fifty quid!
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Gijs937  



Joined: 02 Jul 2014
Posts: 24
Location: Netherlands
PostPosted: Tue Jul 15, 2014 12:45 am    Post subject: Reply with quote
Thanks for the lead!!!!!!!
I contacted Paul and so far so good.
I will keep you posted...
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Gijs937  



Joined: 02 Jul 2014
Posts: 24
Location: Netherlands
PostPosted: Tue Jul 15, 2014 12:49 am    Post subject: Reply with quote
@Steve: your car looks absolutely stunning!!
Does the Mittelmotor kit comes with all the parts??
Finetuning needs BHP readings etc.. Is it standardised in the Mittelmotor kit?
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Gijs937  



Joined: 02 Jul 2014
Posts: 24
Location: Netherlands
PostPosted: Tue Jul 15, 2014 5:59 am    Post subject: Reply with quote
peterld wrote:
Currently a sensor on UK ebay for a hundred and fifty quid!


Bought it!! Thanks for the lead Peter..
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Carrera RSR  



Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
PostPosted: Tue Jul 15, 2014 6:43 am    Post subject: Reply with quote
Gijs937 wrote:
@Steve: your car looks absolutely stunning!!
Does the Mittelmotor kit comes with all the parts??
Finetuning needs BHP readings etc.. Is it standardised in the Mittelmotor kit?


It's a plug and play distributor. Mittelmotor will load a starting map to get going. Further fine tuning can be done on the dyno or road via a laptop.
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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peterld  



Joined: 10 Dec 2006
Posts: 981
Location: Noosa Heads QLD Australia
PostPosted: Tue Jul 15, 2014 4:53 pm    Post subject: Reply with quote
Steve......sounds awfully impressive.

What exactly is the 'starting map' like......just driveable, or OEM settings. or ? Does Mittelmotor then provide a program, or how does it work?
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Carrera RSR  



Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
PostPosted: Wed Jul 16, 2014 8:02 am    Post subject: Reply with quote
Michael at Mittelmotor can provide maps to suit the car it's being fitted to. However it's still best to fine tune to your own application. I'm running the same map as their GTS race car. You can have two maps installed on the dizzy and live switched between them.
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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peterld  



Joined: 10 Dec 2006
Posts: 981
Location: Noosa Heads QLD Australia
PostPosted: Wed Jul 16, 2014 9:59 am    Post subject: Reply with quote
Interesting....thanks.
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Gijs937  



Joined: 02 Jul 2014
Posts: 24
Location: Netherlands
PostPosted: Wed Jul 23, 2014 7:33 pm    Post subject: Reply with quote
Cranksensor arrived from UK.... And I do have to say: I have now the possibility to get another 3, all in range between 150 and 400 GBP (!!!)
Anyway, hope to get the car fixed this week, I will keep you posted.
Thanks again to all whom replied via forum and PM, you all were a big big help!
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Gijs937  



Joined: 02 Jul 2014
Posts: 24
Location: Netherlands
PostPosted: Fri Aug 29, 2014 1:53 am    Post subject: Reply with quote
Since yesterday the car runs! With a total rebuild ignition based on original specs...
What a beast to drive..
Next phase will be Airco repair, electric window passenger side and some other small challenges.
Again, many thanks all for the support and leads!

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Carrera RSR  



Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
PostPosted: Fri Aug 29, 2014 4:53 am    Post subject: Reply with quote
Fantastic. Thanks for the update. Enjoy and make sure you post more pics
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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Gijs937  



Joined: 02 Jul 2014
Posts: 24
Location: Netherlands
PostPosted: Fri Aug 29, 2014 6:40 am    Post subject: Reply with quote


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morghen  



Joined: 21 Jan 2005
Posts: 9095
Location: Romania
PostPosted: Fri Aug 29, 2014 4:49 pm    Post subject: Reply with quote
Great stance !!
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