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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 10:55 am 
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Throw a wtb out on 924board.org, could be successful. Porsche don't care at all about 931s, which have been shown many times, i really hope it will change.


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 10:57 am 
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Location: Solihull, West Midlands
Model: 924 NA
CedricN wrote:
Throw a wtb out on 924board.org, could be successful. Porsche don't care at all about 931s, which have been shown many times, i really hope it will change.


Thanks, good call :beer:

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1985 924 NA, Guards Red - Voted 'Best 924 2.0 NA' 2013 & 2015
2006 Audi Avant 2.0 TFSI Quattro
2003 2 litre Beetle auto, Cyber Green (Wife's)


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 12:10 pm 
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CedricN wrote:
Porsche don't care at all about 931s, which have been shown many times, i really hope it will change.


Sad to say but very likely true. If it were a 930 crank sensor then it would be reintroduced in a heart beat.....

1. 95% of its marketing is around the 911 and its past history
2. they could charge €1000++ and 930 owners would probably buy it. Av value of a 930 is circa £100k. How many 930's are still running? Many 1,000's more than the 931's globally. Bigger potential OEM market. Many modified 930's have already switched to more modern digital ignitions
3. 931 crank sensor has limited sales opportunity and probably too high a price given the av value of a 931 and that there is a €1000 alternative with Mittelmotor

Personally I think the Mittelmotor option is most likely the only immediate option for the OPC Phil.....best tell them to get the credit card out and call Michael ........ Its not like they restored it to 100% OEM spec. A used sensor will be circa 50% the price of a new MM dizzy anyhow.

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Steve
1980 924 Turbo Series 1 - Alpine White & Guards Red
Omega forged pistons, lightened and balanced bottom end, ARP studs + Cometic MLS HG, Piper fast road cam, K27/26 3257 hybrid turbo, 951 ducted FMIC, Custom intake manifold, Mittelmotor dizzy & cam pulley, Adj boost - dyno’d at 225bhp @ 1.0bar on previous CGT turbo, Engine datalogged and on boost fuel enrichment managed with Zeitronix ZT2 & Phormula KS4 knock sensor, 944 turbo all alloy radiator, Hayward & Scott custom tapered race exhaust, GAZ Gold coilovers, Fuch'ed up, Quaife LSD
2017 VW Passat Variant GTE Advance - the daily load lugger and mile muncher
2015 Nissan Leaf Tekna - it builds trees when we drive it


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 12:19 pm 
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scm924s wrote:
Wouldn't do any harm to get PCGB and TIPEC on board, everyone has a shared interest in keeping cars on the road, more shout more clout!


Their 924 threads have a lot of tumbleweed blowing through ........... don't see any traction gained there

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Steve
1980 924 Turbo Series 1 - Alpine White & Guards Red
Omega forged pistons, lightened and balanced bottom end, ARP studs + Cometic MLS HG, Piper fast road cam, K27/26 3257 hybrid turbo, 951 ducted FMIC, Custom intake manifold, Mittelmotor dizzy & cam pulley, Adj boost - dyno’d at 225bhp @ 1.0bar on previous CGT turbo, Engine datalogged and on boost fuel enrichment managed with Zeitronix ZT2 & Phormula KS4 knock sensor, 944 turbo all alloy radiator, Hayward & Scott custom tapered race exhaust, GAZ Gold coilovers, Fuch'ed up, Quaife LSD
2017 VW Passat Variant GTE Advance - the daily load lugger and mile muncher
2015 Nissan Leaf Tekna - it builds trees when we drive it


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 12:57 pm 
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Joined: Tue Mar 21, 2017 10:01 pm
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Location: Sweden
Model: 924 turbo
Last sensor I bought was something like 150eur a year ago, so its still much cheaper than switching out the hole system (though expensive for a used sensor), even though the mittlemotor solution is neat and plug n play. Its still alot of money for something which only can handle igntion, and its a bit unfortunate that it doesnt have any temperature correction (though i think the 123 version have ambient air correction?), though the last thing is not of interest for everyone.


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 2:01 pm 
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CedricN wrote:
Last sensor I bought was something like 150eur a year ago, so its still much cheaper than switching out the hole system (though expensive for a used sensor),


You did well @ €150. I sold one sensor for £225 and one for close to £300 circa 4-6yrs ago. That was offered prices by the buyers not my asking. I don't know what the current price is for the MM dizzy. I paid circa €950(?) when the sterling exchange rate was much more favourable to UK. I checked back and it was £770 shipped to UK in 2013. So yes, its not so cost effective. But is potentially more future proof, but anything can die prematurely on car.

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Steve
1980 924 Turbo Series 1 - Alpine White & Guards Red
Omega forged pistons, lightened and balanced bottom end, ARP studs + Cometic MLS HG, Piper fast road cam, K27/26 3257 hybrid turbo, 951 ducted FMIC, Custom intake manifold, Mittelmotor dizzy & cam pulley, Adj boost - dyno’d at 225bhp @ 1.0bar on previous CGT turbo, Engine datalogged and on boost fuel enrichment managed with Zeitronix ZT2 & Phormula KS4 knock sensor, 944 turbo all alloy radiator, Hayward & Scott custom tapered race exhaust, GAZ Gold coilovers, Fuch'ed up, Quaife LSD
2017 VW Passat Variant GTE Advance - the daily load lugger and mile muncher
2015 Nissan Leaf Tekna - it builds trees when we drive it


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 5:32 pm 
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Englander wrote:
CedricN wrote:
Throw a wtb out on 924board.org, could be successful. Porsche don't care at all about 931s, which have been shown many times, i really hope it will change.


Thanks, good call :beer:


Done it for you Phil......

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Steve
1980 924 Turbo Series 1 - Alpine White & Guards Red
Omega forged pistons, lightened and balanced bottom end, ARP studs + Cometic MLS HG, Piper fast road cam, K27/26 3257 hybrid turbo, 951 ducted FMIC, Custom intake manifold, Mittelmotor dizzy & cam pulley, Adj boost - dyno’d at 225bhp @ 1.0bar on previous CGT turbo, Engine datalogged and on boost fuel enrichment managed with Zeitronix ZT2 & Phormula KS4 knock sensor, 944 turbo all alloy radiator, Hayward & Scott custom tapered race exhaust, GAZ Gold coilovers, Fuch'ed up, Quaife LSD
2017 VW Passat Variant GTE Advance - the daily load lugger and mile muncher
2015 Nissan Leaf Tekna - it builds trees when we drive it


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 6:00 pm 
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Joined: Mon Jan 04, 2010 11:24 pm
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Would have thought that with the amount Porsche GB spent on this car, and assuming they sold it for a decent price with some sort of warranty, they wouldn't want to risk more issues with old crank sensors and opt for the mittlemotor upgrade.

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1984 924 N/A RUBY RED METALLIC - full service history, every MOT, 3 previous owners.
1986 924S GUARDS RED - previous owner from 1990.
1988 924S Guards Red - sold
1984 924 N/A Black - sold
1980 924 LE MANS#1 - ex National prize winner and NEC exhibit 2011 & 2016. - sold
1980 924 LE MANS#2 - Saved from 10 years as a garden ornament - sold
1977 924 Martini - sold


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 9:20 pm 
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Location: Cambridgeshire
Model: 924 turbo S2 'S'
pete wrote:
I would just swap the dizzy, any crank sensor is well over 30 years old and will fail.


Ditto!!!!!!!!!!!!!! :grin:


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 Post subject: Re: Crank Sensor for S2 Turbo
PostPosted: Tue Mar 12, 2019 9:47 pm 
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Joined: Thu Aug 16, 2012 6:06 pm
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Location: Solihull, West Midlands
Model: 924 NA
Thanks everyone for the input and the leads to sensors on the market
I now know of 2 out there.
Ciprian’s exploration of an affordable alternative under development is very interesting .Thanks Steve for the mittelmotor information and links, it looks like that is the direction Porsche are going to go with this.

I’ve rolled the dice in a couple of areas to rattle AG’s cage on new units via Classic , not holding my breath but you never know .
Impressive effort all round helping Porsche Leeds reach a solution less than 72 hours since the request landed :beer:

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1985 924 NA, Guards Red - Voted 'Best 924 2.0 NA' 2013 & 2015
2006 Audi Avant 2.0 TFSI Quattro
2003 2 litre Beetle auto, Cyber Green (Wife's)


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