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3 liter conversion questions

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Old 07-21-2008, 09:52 AM
  #16  
Chris White
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Originally Posted by sm
Off topic -

Chris, can you explain how the a/c system on the 944 interacts with the DME? Does the idle speed pick up when the a/c is on?

If I have the a/c on, my RPMs drop like a rock when shifting and I'd like to fix that. The revs drop to about ~200 rpm or so and it feels like the a/c compressor is causing major drag on the motor.
On the 951 the DME receives a signal that hte A/C is on and ups the idle. On the 968/S2 the DME actually turns the A/C on/off and regulates the idle accordingly
Old 07-21-2008, 10:51 AM
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Originally Posted by Clint's 944
3. Should I get a k26/8 or a k27/8? Anyone have one?
It depends on your goals. Neither turbo will be on my list, however between the 2 listed, I'll take the K27/8.

Originally Posted by Clint's 944
4. Should I use the S2 computers or the 951's?
You can use either. The S2 DME is very nice, it must be programmed correctly for a forced induction. You will have to replace the AFM with a MAF.
The 951 DMEs will work, but require you replace the ignition trigger ring on the flywheel, and you will need to replace teh S2 AFM.
I personally would keep the S2 DME, less hardware to convert and you get 2 knock sensors instead of one.

I would add a PiggyBack to fine tune to match your car 100%.
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