What oil temp Temperature gauge do I trust, Just installed the new Pressure & CHT guages Options

[jc914]

I just finished cleaning all the inside glass of all my gauges (what a difference they look NEW) So I toke her out in the Miami weather tonight the outside temp was a nice hot 80 degrees. I drove my 914 for over an Hour an Half I drove her really hard and fast up 80MPH:driving: . The OEM temp gauge only read a 1/4 up and it never even got half way up (IMG:style_emoticons/default/piratenanner.gif) . Once I got home I opened the engine lid and the Dip stick Temp Gauge read 250 degrees. ( note i have checked the dip stick boiling point yesturday before i installed it.) If My 914 is running hot what what might be the causes and which gauge should i trust. (IMG:style_emoticons/default/devil.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif)

The car idled at 1 the whole night when i got home i turned her of and then on again after like 5 minutes and it started with some gas on the peddle.

thanks
JC

[jc914]

I just toke her out for another ride of about forty five minutes stopping and looking at the temp on the dip stick it ranged from 220-250 250 being the max i got and no matter how hard i would drive it would it did not go any hire than 250. Tomorrow i am going to clean the oil cooler with brake cleaner, check the fan and make sure there is nothing blocking it and later in the week i am going to do an oil change ( have to admit the oil is really old like 4 years only have ran like 1,000 miles I know shame on me (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/chair.gif) (IMG:style_emoticons/default/behead.gif) ) I hope this will bring done the temp at least to 220 at its highest point.

I have been looking at the CHT i think i am going to change my mind and go with the Dakota I just cannot see my self driving looking at the gauge and doing some math in my head to get the CHT degree from the VDO

For those of you that have a temp gauge with the big red zone this is what I used on the stock gauge to correlate to the dip stick gauge. When the top of the needle passed the top Tip left of the T (on the temp word) i had 220 from the dip stick. When the needle got to almost the tip of the end of the T i had 250 on the dip stick.