There is a hole right on top of the trailing #2 spark plug. What is that thing? I screwed my water temp sender into it and left the REAL water temp sender hole opened. Now i have coolant all over the place. Thank god the low coolant buzzer saved my car rom an overheat

 

 

duh no **** it was stupid, but wtf is that thing?

 

I *think* that it served some purpose in the S4's or possibly the '85 GSL-SE. But in the S5 they changed something and so it serves no purpose now.

 

Perhaps the knock sensor went in there.

 

Knock sensor for turbo motors - I believe the NA's don't have knock sensors stock?



-Ted

 

i see. thanks for the info. btw ted. how hot does the water temp register on your car when you

1. Drive in city
2. Drive in traffic
3. Drive on highway cruise
4. Redlining a few times
5. Track?

 

Aftermarket gauge?
I don't have the stock viscous fan.
I don't have the stock thermostat installed - it's a "cored" stock thermostat with just the flange mounted.
I have a 16" electric fan with no thermostat control - I use a manual switch to turn it on when I feel it's too hot.
I do run a stock radiator.

Depending on ambient, it'll run anywhere from 160F to 240F.&nbsp I tend to flip the electric fan switch anytime it comes close to 210F.&nbsp Average temps driving around is 190F-210F; ambient is anywhere from 60F to 80F.&nbsp Ambients lower than 60F will drastically cause the temps to drop, especially at highway cruising - I've seen lows of 160F with ambient in the 30F-40F range.&nbsp With ambients in the 90F-100F in Sac and Vegas summers, the set-up will run rather hot (200F-230F) driving leisurely around town with the electric fan on full-time.&nbsp Redlining will cause the temps to hit 210F rather quickly.&nbsp My car has never seen the track, but on other FC's it's highly dependent on ambient.

FC, stock rad, MR-2 fans, Thunderhill, 100F+ ambient temps - we pegged 250F!&nbsp Dropping in a K2RD upgrade rad dropped temps down to 190F-200F under similar conditions!

FC, stock rad, MR-2 fans, Laguna Seca, 50F ambients temps - the gauge showed 210F-220F on track, but quickly cooled down to 190F on cool down laps.



-Ted

 

dude glad to see someone else is running the mr2 fans.
i thought i was smokin crack!
james

 

On the NA, is that hole like plugged? I was able screw in the sensor pretty far, just wondering