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CIS twinturbo + twin-injectors + ITB from Germany

Dear turbo fans ,

last weekend, I visited the “Monza Classic“ race in Italy. This event is part of an international
championship - https://peterauto.peter.fr/en/classic-car-events/ - which is hold on European race tracks, with participants from all over the world and a lot of very interesting cars.

Here are some pics of a pretty rare 934.5 version. There are only less than a handfull cars with this configuration that were built in Germany. They only differ in marginal details and they are presumably the strongest and fastest Porsche CIS flat six turbo engined beasts around. In this particular case, we are talking about a twin-turbo, twin-injector, ITB set-up. Fellow Pelicanite Dirk, from Edelwiess Motorsport in Germany has a pretty deep insight on this configuration and the repective components...

Here we go



















Old 07-05-2017, 01:40 PM
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I hope you liked the pics

G
Old 07-05-2017, 01:44 PM
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Very cool. Not much room left in that engine compartment. I'm wondering if that turbo drain pot ties into the sump plate or they use a scavenge pump.
Old 07-05-2017, 02:43 PM
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12 injectors?

Thanks for posting.
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Old 07-05-2017, 10:34 PM
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Very neat car, thanks for sharing!
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Cheers, Chris
1975 Carrera / 965 tribute w/ 1989 3.3 turbo 8.5:1, K27 7200, 964 cams, euro CIS, TEC1 dual plug, rarlyL8 headers & outlaw pipe. 915/68 trans, kevlar clutch and lightweight pressure plate.
Old 07-06-2017, 05:03 AM
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I just noticed that the fuel lines comming off the fuel distributor looked stacked or am i seeing double again?

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Old 07-06-2017, 10:19 AM
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12 injector CIS, for when you dont have a garden hose handy.
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Old 07-06-2017, 11:35 AM
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Hahaha.Yepp thats a hell of alot of fuel

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Old 07-06-2017, 02:08 PM
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934.5 CIS setup

Another one slightly different...
Old 07-22-2017, 03:45 AM
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Nice one. Thanks for sharing
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Old 07-23-2017, 12:18 AM
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Very similar intake plenums to my old 962 IMSA air car

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Old 07-26-2017, 09:16 AM
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The 934.5 car shown in the link, looks like the former car of German gentleman driver
Christopher Stahl and it was pretty successfull here in Europe. I'm pretty sure that the shop pics were taken in Germany. With the twin-injector configuration you can literally extinguish the spark plugs. These engines were able to generate some serious hp numbers and they had some interesting battles with the 935.

Enjoy the sound and the flames...

https://www.youtube.com/watch?v=g37Q4O_zUgM

G
Old 08-09-2017, 04:31 AM
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