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Registered
Join Date: Jun 2001
Location: Sweden
Posts: 5,911
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Anybody replaced CIS with aftermarket?
I'm growing tired of CIS in my 930. It's hopeless piece of equipment. It's running too rich @ idle, measure-plate claps on decceleration and mileage is ridiculous.
I'm thinking about taking out CIS and installing Autronic or Haltech system. Plan is to get rid of CIS-injectors, and mounting electrical Bosch ones instead connected with one fuel-rail on each side of engine. To keep things simple, i'll leave original airbox and CIS throttle-body cavity (without measure-plate or anything mechanic). MAP-sensor is to go into manifold. It would be good to know if somebody already did this and what i'm to expect. This is not primary for tuning reasons , but for driveability and MPG's. |
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06-12-2001, 07:06 AM
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Registered
Join Date: Jun 2001
Location: Heaven
Posts: 3
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You might want to check this out: there are several 911s here running this FI system.
http://www.sdsefi.com/project.html KRL |
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06-12-2001, 07:22 AM
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Senior Member
Join Date: Jan 2001
Posts: 539
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I am running a Haltech and love it so far. You might check out my website and see how I made my fuel rails, etc.
------------------ Mark www.mark.hargett.com mark@hargett.com |
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06-12-2001, 07:40 AM
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Crotchety Old Bastard
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Mark - any updates? Are you getting any road time on the car yet?
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06-12-2001, 09:47 AM
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Crotchety Old Bastard
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Are you planning to use the stock 930 intake manifold? Most of the modified turbos I have seen go with the 3.2 Carrera unit. The stock 930 unit is said to be restrictive.
I looked at doing this with mine and noticed also that the injectors screw in. Most aftermarket units are of the push in variety. It would be a very clean look to remove the top end of the CIS system leaving only the intake manifold and throttle body. |
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06-12-2001, 01:36 PM
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78 Porsche 911SC 3.0L, 3.3Turbo soon. 
