Gt2rs engine vs turbo S... Known differences?
#16
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The drivers manual and Motorsport manuals both state 3000 miles/5000kms (as I pointed out above)
Most would consider that a minimum and the reality is it should be changed as required (if used solely for Motorsport)
also the 2RS change quantity is 7.94l whereas the GT3 is 6.4l
Most would consider that a minimum and the reality is it should be changed as required (if used solely for Motorsport)
also the 2RS change quantity is 7.94l whereas the GT3 is 6.4l
#17
- I would be surprised if there was a specific dictum.
Obviously the 5000km would be a bare minimum.
I have done 4 changes on my 3RS for a total of 7000km (mix of track and road rally) - however I am ultra cautious and oil is cheap insurance.
#18
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I was referring to track manual for GT2 RS
#19
RL Community Team
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These are the features listed in the Technical presentation for the GT2RS compared to the 991.2 Turbo S:
- Modified crankcase
- Bespoke pistons
- Bigger turbochargers
- Multitube airfilter
- Enlarged air ducts
- High-performance cooling system
- Titanium sport exhaust system
- 67mm compressor and 55mm turbine (vs. Turbo S 58/48)
- The headers have a 25% enlarged cross-section
- Airbox with multitube maximizes surface area, increases airflow and the packaging is smaller
- Intercoolers have 27% more airflow thanks to new ducting and position
- Intercoolers are 15% larger
- Water vaporization system increases the intercooler efficiency by another 20%, and reduces air intake temperature by up to 70 degrees F
It is not a RWD 991.2 Turbo S, it is a 991.2 GT3RS with a GT engine evolved from the 991.2 Turbo S, and an unique PDK transmission as well.
- Modified crankcase
- Bespoke pistons
- Bigger turbochargers
- Multitube airfilter
- Enlarged air ducts
- High-performance cooling system
- Titanium sport exhaust system
- 67mm compressor and 55mm turbine (vs. Turbo S 58/48)
- The headers have a 25% enlarged cross-section
- Airbox with multitube maximizes surface area, increases airflow and the packaging is smaller
- Intercoolers have 27% more airflow thanks to new ducting and position
- Intercoolers are 15% larger
- Water vaporization system increases the intercooler efficiency by another 20%, and reduces air intake temperature by up to 70 degrees F
It is not a RWD 991.2 Turbo S, it is a 991.2 GT3RS with a GT engine evolved from the 991.2 Turbo S, and an unique PDK transmission as well.
Actually, crank refers to crankshaft which apparently the 2RS shares with the Turbo.
It says modified crankcase which is sort of like engine block, but different construction on a 911. It’s not clear exactly what they did there, but could be something very minor (to mount to the larger headers for instance) or something more significant to strengthen or improve oiling for another example...
It says modified crankcase which is sort of like engine block, but different construction on a 911. It’s not clear exactly what they did there, but could be something very minor (to mount to the larger headers for instance) or something more significant to strengthen or improve oiling for another example...
#20
The numbers quoted are from the Race Circuit driving chapter of the manual .
The recommended oil level for optimum engine operation, during race circuit driving, is approximately 75% of the display area B. When topping up, be aware that the difference A between the minimum and maximum marks is approximately 1.25 litres (GT3) or approximately 1.25 litres (GT2 RS). Overfilling with oil must always be avoided . Check the engine oil level before each race circuit session and top up if necessary. The engine oil and oil filter must be changed after 5000km (3000 mls) of race circuit driving at the latest.
Perhaps it’s different in the US for some reason.
The recommended oil level for optimum engine operation, during race circuit driving, is approximately 75% of the display area B. When topping up, be aware that the difference A between the minimum and maximum marks is approximately 1.25 litres (GT3) or approximately 1.25 litres (GT2 RS). Overfilling with oil must always be avoided . Check the engine oil level before each race circuit session and top up if necessary. The engine oil and oil filter must be changed after 5000km (3000 mls) of race circuit driving at the latest.
Perhaps it’s different in the US for some reason.
#21
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Actually, crank refers to crankshaft which apparently the 2RS shares with the Turbo.
It says modified crankcase which is sort of like engine block, but different construction on a 911. It’s not clear exactly what they did there, but could be something very minor (to mount to the larger headers for instance) or something more significant to strengthen or improve oiling for another example...
It says modified crankcase which is sort of like engine block, but different construction on a 911. It’s not clear exactly what they did there, but could be something very minor (to mount to the larger headers for instance) or something more significant to strengthen or improve oiling for another example...
#22
Originally Posted by Perimeter
The compression ratios are different. The crank has got to be different
#23
Burning Brakes
Thread Starter
Usually pistons, I bet the crank is slightly different though to handle the increase of power and expectations that the gt2rs would need to deal with more tracking / extreme conditions. I hope the engine is basically the same as the turbo motor is easily obtainable.
#24
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#25
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The numbers quoted are from the Race Circuit driving chapter of the manual .
The recommended oil level for optimum engine operation, during race circuit driving, is approximately 75% of the display area B. When topping up, be aware that the difference A between the minimum and maximum marks is approximately 1.25 litres (GT3) or approximately 1.25 litres (GT2 RS). Overfilling with oil must always be avoided . Check the engine oil level before each race circuit session and top up if necessary. The engine oil and oil filter must be changed after 5000km (3000 mls) of race circuit driving at the latest.
Perhaps it’s different in the US for some reason.
The recommended oil level for optimum engine operation, during race circuit driving, is approximately 75% of the display area B. When topping up, be aware that the difference A between the minimum and maximum marks is approximately 1.25 litres (GT3) or approximately 1.25 litres (GT2 RS). Overfilling with oil must always be avoided . Check the engine oil level before each race circuit session and top up if necessary. The engine oil and oil filter must be changed after 5000km (3000 mls) of race circuit driving at the latest.
Perhaps it’s different in the US for some reason.
Maybe you’re saying that your track manual gives same for both 3RS and 2RS?
I guess that’s what the language above says - sorry for being dense
Last edited by GrantG; 12-21-2019 at 12:26 PM.
#27