I use an 82 degrees thermostat but with all other radiators and senders stock. Living in a very hot climate makes it just easier to avoid big temperature spikes. an 82 thermostat opens at 82 but is fully open at approx 90 degrees (as I tested yesterday).
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Go Holset or Go RS4 -
70 degrees is too low imho. It'll make the engine run a bit richer than it needs should, and cause bore washing which is not want these, (any), engines want when it should be up to the correct normal temperature.
Notwithstanding any of the constructive criticism / assertive advice you are free to do as you wish with your engine.
Good thread, as it helps show some things are worth upgrading / spending money on, but also shows that upgraded / dearest isn't always the best / necessary.
Kind regards.
Sorry to 911 for the continuation of the thread hijack.
Last edited by macspring; 13 September 2015, 06:38.Comment
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Thermostats don't have any effect on the coolant ceiling temp, or cooling efficiency at all unless they are a significant restriction at fully open. For more cooling you need a rad with larger surface area or better heat transfer through more effective flow (faster or indeed slower circulation of coolant, or coolant with larger specific heat capacity)
To answer the OP's question, use the Gates belt. The OEM belt is Gates
Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 AvantComment
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We in Germany run our Cars at much higher Speeds has you in england. Try to Drive some pass with 250kmh+ and you can See how your Temperatur climbes up to 100 or more degrees.Comment
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You were not the best of the class in physics a guess.....
First the bigger pulley instead of the smaller and now the high speed on the autobahn that peaks your temperature.....
You're keep digging they say in UK?Comment
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did 270 on the BAB with my A8 this summer, solid on 90deg.
on the track the S2 goes to 100+Comment
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Maybe, the Porsche engineers found that the water pump was cavitating at high RPM so fitted a bigger pulley to slow it down?
Just wondering...Comment
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The RS2 pulley is smaller, less teeth - higher pump speed
Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 AvantComment
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Ah, fair play
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In conclusion!
Gates belt ok!
New pump!
right?Comment
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Gates or the Continental one I posted. Either.
Water pump = yes , unless you like to revisit your work say 6 months down the road.
Idler pump = yes (same reason)
Cam seal = sure, easy to do while you're there.
Crank seal = debateable, see water pump.
Here are the details of one AAN timing belt kit offered in the US:
BLAU® Audi S6 Timing Belt Kit For 20 Valve Models Includes:
Components Mfd by OEM Quality TUV/ISO 9001/TS16949 Certified Manufacturers
1 'Gatesr' Timing Belt
1 'INA''FAG' Timing Belt Tensioner Idler
1 'Graf' Water Pump w/ Gasket
1 Viton Front Crank Seal
1 Viton Camshaft Seal
4 ½ Liters G12 Plus German Antifreeze (3 - 1.5L Bottles)
Appropriate amount for complete cooling system flush.
Thread Locking Compound
Blauparts Detailed Step-by-Step Audi S6 Timing Belt Instructions
http://www.blauparts.com/proddetail.asp?prod=GH21109-BRS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avantComment
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Sorry if I am stating the obvious here ,but are we saying the belt is no longer available from Audi ,[who never made them in the first place] .Or they are no longer available anywhere. What about the 3b and all the other variants.Comment
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