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malcolm2 |
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States ![]() ![]() |
I want to cover all my bases here. I have purchased the new GB CHT sensor from 914Rubber to try.
So, I think I will buy a spacer from Brad Mayeur to have the option. From what he says it should: "Porsche 914/4 Cylinder Head Temperature Sensor Extension. This little device slows down the heating of the sensor and improves warm up drivability." I do have "warm up drivability" problems = Low idle RPM until the VDO CHT hits about 250*F. So it seems like my problems don't need the warm up to slow down, it needs to SPEED UP. (IMG:style_emoticons/default/WTF.gif) 914LTD.com ![]() ![]() Also found on RATWELL (scroll down to WORKAROUNDS)http://www.ratwell.com/technical/TempSensorII.html#parts |
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Mikey914 |
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The rubber man ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 12,684 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None ![]() ![]() |
Well a rheostat would give you the ability to have a more precise adjustment, you are still working off your base measurement.
The real issue here is exactly what you did. "I replaced it with another I had lying around it it was better" So either one was bad, or incorrect. The real issue is that you don't want to be too lean on the hot side. This is what the additional resistor in the 73 did with the unit used on it. Why they decided to change the set up only the Germans know, but you could achieve the same thing by adding a small resistor in line 100ohm? The real question is would you want to put a 1000-2000 ohm rheostat in line to allow you to make the mixture richer? |
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