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.2 GT3 vs .2 GT3 RS motor

 
Old 05-02-2018, 11:35 PM
  #61  
GrantG
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Originally Posted by TRAKCAR View Post
.2 GT3 pulls away over 80MPH.
The best .1RS can hope for is existing the corner enough MPH to keep up..
Goid point- hypothetical said both cars hit the straight at the same time, but didnĺt say same speed. RS could certainly have higher speed when hitting the straight...
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Old 05-04-2018, 05:49 PM
  #62  
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.1RS .2GT3.
same hp. but different drag coefficient.

and so itĹs the other way around.
+ more rubber, stiffer and wider
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Old 05-01-2019, 08:07 PM
  #63  
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LMAO

Originally Posted by CAlexio View Post
One of the 918 "flying doctors" was at Smokies GT3 event talking tonight, and he said there is no difference between those two engines, and then he told us not to tell anyone else. As soon as he said that, a German soldier in a WW2 SS uniform came out from behind the screen and shot him point blank.
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Old 05-02-2019, 08:14 AM
  #64  
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Originally Posted by SCCAForums View Post
My guess,
Intake = BMC Filters
Exhaust = Titanium muffler
Tuning = More aggressive ecu mapping

But frankly, and this somewhat contradicts my theory, if their were no changes, it wouldn't make sense for the RS motor to be different on the assembly line, and I personally witnessed the .2 RS motor was labeled separately from the .2 GT3 motor.

Best Regards,
Dave
ECU might be same hardware but different mapping. It comes with the software pre-installed.
Hence it is part of the engine, it also requires an identifier which engine to be installed to.
That might be the reason.
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Old 05-02-2019, 09:02 AM
  #65  
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The main difference is pretty flagrant, intake and obviously different mapping to account the increased airflow. Maybe a bigger intake manifold, maybe bigger cams (doubt it, but I don't have parts numbers at hand to check these), but it's mostly on the intake side.
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Old 05-02-2019, 09:07 AM
  #66  
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Originally Posted by Nick View Post
AP discusses the differences between the GT3.2 and .2RS engines. They are significant.

https://www.youtube.com/watch?v=HZWBGY6LeUQ
The significant changes mentioned are versus the .1 RS.

When he talks about differences versus the .2 GT3, he mentions: intake, exhaust, and engine mapping.
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Old 05-02-2019, 10:25 AM
  #67  
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Would love to know the actual engine map difference between these 2 to see how Porsche got the extra few HP. I don’t see any difference in the exhaust as far as how it flows....anyone know?
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Old 05-02-2019, 02:51 PM
  #68  
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Dundon posted some numbers from their own dyno.

991.1 GT3 rated at 475hp makes 400whp
991.1 GT3RS rated at 500hp makes 430whp
991.2 GT3 PDK rated at 500hp makes 445-448whp
991.2 GT3 Manual rated at 500hp makes 455-460whp
991.2 GT3RS rated at 520hp makes 467-468whp

These are power numbers at the wheels.

The .2 RS puts down 20 hp more than the .2 pdk. I would assume this is due to tuning, bmc filters and exhaust. AP mentions it as stated above. Throw BMC filters in and an aftermarket exhaust and there is 10 hp already. I'm sure the ecu adapts a bit too.

The difference between .2 GT motors and .1 is drastic. 40-60 hp more from the .1 gt3 to .2 gt3 and 30-38 hp more from the .1 RS to .2 RS.
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Old 05-02-2019, 03:10 PM
  #69  
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Originally Posted by drdonger View Post
Dundon posted some numbers from their own dyno.

991.1 GT3 rated at 475hp makes 400whp
991.1 GT3RS rated at 500hp makes 430whp
991.2 GT3 PDK rated at 500hp makes 445-448whp
991.2 GT3 Manual rated at 500hp makes 455-460whp
991.2 GT3RS rated at 520hp makes 467-468whp

These are power numbers at the wheels.

The .2 RS puts down 20 hp more than the .2 pdk. I would assume this is due to tuning, bmc filters and exhaust. AP mentions it as stated above. Throw BMC filters in and an aftermarket exhaust and there is 10 hp already. I'm sure the ecu adapts a bit too.

The difference between .2 GT motors and .1 is drastic. 40-60 hp more from the .1 gt3 to .2 gt3 and 30-38 hp more from the .1 RS to .2 RS.
Posts like this make me want to get a set of headers! Easy way to get back 75% of the difference PDK vs PDK.
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Old 05-02-2019, 03:18 PM
  #70  
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Originally Posted by drdonger
Dundon posted some numbers from their own dyno.

991.1 GT3 rated at 475hp makes 400whp
991.1 GT3RS rated at 500hp makes 430whp
991.2 GT3 PDK rated at 500hp makes 445-448whp
991.2 GT3 Manual rated at 500hp makes 455-460whp
991.2 GT3RS rated at 520hp makes 467-468whp

These are power numbers at the wheels.

The .2 RS puts down 20 hp more than the .2 pdk. I would assume this is due to tuning, bmc filters and exhaust. AP mentions it as stated above. Throw BMC filters in and an aftermarket exhaust and there is 10 hp already. I'm sure the ecu adapts a bit too.

The difference between .2 GT motors and .1 is drastic. 40-60 hp more from the .1 gt3 to .2 gt3 and 30-38 hp more from the .1 RS to .2 RS.
This justifies the price premium with .2 GT3 vs .1, and how intense the seat of the pants difference is. Every time I read people saying there isn't much difference between them I wonder if that person has actually tried both..
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Old 05-02-2019, 03:31 PM
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Originally Posted by CAlexio View Post
This justifies the price premium with .2 GT3 vs .1, and how intense the seat of the pants difference is. Every time I read people saying there isn't much difference between them I wonder if that person has actually tried both..
There is a big difference in torque to the wheels. You will definitely be able to feel it. I think 30-40 ft/lbs difference over different rpm ranges.
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Old 05-02-2019, 04:31 PM
  #72  
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I can not comprehend. Drove .2 GT3 and .1 GT3 and the power difference is not drastic. Straight line performance of .1 is the same like .2 with passenger. .2 runs away when the passenger is in the .1. PDK to PDK.
Also, sportauto measured alle the cars and didn't see such a big difference. Its more the torque difference below 6k rpm but not the power when driving racelike.

Dyno mode activated and 4wd-dyno?
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Old 05-02-2019, 04:35 PM
  #73  
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Originally Posted by Cay_PI View Post
I can not comprehend. Drove .2 GT3 and .1 GT3 and the power difference is not drastic.
No, it's not drastic but it is noticeable. When you're talking ~ 10% peak difference with similar curves, it's not ever going to feel drastically different.

Here in Colorado, you can make much more difference with a short drive up or down the mountain (different air density)...
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Old 05-02-2019, 08:05 PM
  #74  
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Originally Posted by CAlexio View Post
This justifies the price premium with .2 GT3 vs .1, and how intense the seat of the pants difference is. Every time I read people saying there isn't much difference between them I wonder if that person has actually tried both..
Yes I agree.... .2 was a difference for me that I waited and searched harder for a .2.
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Old 05-02-2019, 08:08 PM
  #75  
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Originally Posted by TRAKCAR View Post
.2 GT3 pulls away over 80MPH.
The best .1RS can hope for is existing the corner enough MPH to keep up..
...but the .1 canĺt exit corner faster because the .2 is faster in the corners too...
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