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150 sounds very high. Even in 30deg heat, mine hit 130 on stock cooler, 135 max.
Yeah i backed off immediately when I noticed.
Could this have been partly caused by the front wheel arch liners having been removed along with the undertray, causing the airflow and cooling to be significantly reduced?
Could this have been partly caused by the front wheel arch liners having been removed along with the undertray, causing the airflow and cooling to be significantly reduced?
Mine's in the same state. What water temp dud you see?
Cheers'en, AndyC
1994 ABY Coupe - Projekt Alpinweiss
Would it not run cooler on the track by removing it completely - on a temporary basis...the thermostat is a 'restriction' in the system...just a suggestion.
Read above guys. By thermostat mod I don't mean to remove it.but use the 80C one instead of the 90+C that audi specifies. Comes off a vw van which was produced to be sold in Africa. I ha e always used that since the upgrades.
I could understand if it was a trackday at Haynes. But looking at the videos, there were some good speeds involved, so plenty of moving and cooling air, even if it was a tad warm. Things could've been hotter, like it was further South in the week.
Something doesn't seem quite right.
Running vems I have noticed something interesting which may be related.
On idle as the IAT becomes warmer, the mixture becomes leaner. Sure the lamda corrects it but it seems as if the hotter it goes the more wide you need to have the lamda to correct this and obviously having the fan kicking in as well as as other electrical stuff makes the idle a bit jumpy.
This was cured with the implementation of a second fueling table which was fuel vs IAT vs TPS and it acts in conjunction to the basic fueling map. It helps keep the lamda having to make small corrections as there is a dedicated line to idle.
Of course motronic must have something similar but I suppose it has to do with the extremes of being in the track etc
This problem does not exist on Motronic due to use of a MAF, as it's measuring airflow, not guessing it.
And on MAFless I have a table to correct for this.
Do not remove the stat completely. Just cut out the centre part and reinstall to ensure proper coolant circulation.
The coolest stat I have found to fit is a 74 degC from 1990's Land Rover 110 TDi.
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