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.2 GT3RS vs .2GT3 Who wins in a roll race?

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Old 09-23-2018, 02:07 PM
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RyanDDWPartners
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Originally Posted by drdonger
A manual with pccb’s would probably be desd even with the RS.
No it won’t. The result will be the same. .2 GT3 testing has already been done and in the quarter mile they run the exact same mph pdk vs manual, as they should being that they have the same hp. They also run within a tenth of two at the track, also proven by Randy Pobst.
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Old 09-23-2018, 02:07 PM
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Is it a Manual or PDK??
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Old 09-23-2018, 02:09 PM
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Originally Posted by karimgt3
Is it a Manual or PDK??
Both PDK. The manual conspiracy theory is funny 🤦🏻*♂️
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Old 09-23-2018, 02:10 PM
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Originally Posted by RyanDDWPartners


No it won’t. The result will be the same. .2 GT3 testing has already been done and in the quarter mile they run the exact same mph pdk vs manual, as they should being that they have the same hp. They also run within a tenth of two at the track, also proven by Randy Pobst.
No one is doubting on the track or in the 1/4 mile it is quicker but from a roll the manual with pccb would be pretty close. The manual loses its time from the launch in a 1/4 mile. It puts down more power to the wheels. I would love to see SCCA race his manual with pccb’s agaisnt a .2 pdk GT3 and a .2 GT3RS.
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Old 09-23-2018, 02:13 PM
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Originally Posted by drdonger
A manual with pccb’s would probably be desd even with the RS.

https://youtu.be/2nlH8qkgMtw

We need this guy driving his manual with pccb’s against and RS from a roll.
I would think this result would be way different from a standing start.
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Old 09-23-2018, 02:14 PM
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Originally Posted by robmypro


I would think this result would be way different from a standing start.
Ya, there is another video and the Gt3 gets destroyed. But from a roll the manual is fast.
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Old 09-23-2018, 02:16 PM
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Originally Posted by drdonger


Ya, there is another video and the Gt3 gets destroyed. But from a roll the manual is fast.
Still very impressive. These cars are awesome.
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Old 09-23-2018, 02:23 PM
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The parasitic loss between a PDK and Manual are virtually the same. The PDK is not like a traditional slush box automatic with a converter that eats up HP
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Old 09-23-2018, 02:56 PM
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Originally Posted by Jimmy-D
Certainly better than value thread but who knows which would be faster. I believe the .1 GT3 was slightly faster than .1 RS so would suspect the same in a straight line- not talking track
See Jimmy. An RS is an RS.
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Old 09-23-2018, 03:03 PM
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Originally Posted by drdonger
A manual with pccb’s would probably be desd even with the RS.

https://youtu.be/2nlH8qkgMtw

We need this guy driving his manual with pccb’s against and RS from a roll.
Interesting. Doesn't make sense though. .
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Old 09-23-2018, 03:05 PM
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Originally Posted by RyanDDWPartners
.2 GT3 testing has already been done and in the quarter mile they run the exact same mph pdk vs manual, as they should being that they have the same hp. They also run within a tenth of two at the track, also proven by Randy Pobst.

While PDK and Manual have the same hp at the crank, the manual puts a bit more to the wheels (10-15hp more, due to less internal friction and losses from conversion of power to heat). From a rolling start, the Manual should have a small advantage (and PDK an advantage from standing start), particularly when using No-Lift shift feature. Also, the Manual has a small weight advantage (37 pounds, IIRC).

If it was not for the above advantages, then I think PDK would have a slightly larger advantage on a road course when both cars driven by Randy.
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Old 09-23-2018, 03:07 PM
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Originally Posted by RyanDDWPartners
The parasitic loss between a PDK and Manual are virtually the same. The PDK is not like a traditional slush box automatic with a converter that eats up HP
Serious question though: Anybody know why a stock 435hp 997.2 GT3 puts down about 400 whp sae corrected on a Dynojet, and stock 475hp 991.1 PDK GT3 also put down about 400 whp sae corrected on the same dyno? Were the 997.2 GT3 really under rated or PDK actually has higher drivetrain loss versus the manual?
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Old 09-23-2018, 05:24 PM
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Manual vs PDK or is it PDK vs PDK?
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Old 09-23-2018, 05:44 PM
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A couple issues with this race. PDK vs PDK is good, but the RS does have a few advantages which is lighter wheels and lighter brakes. We also don't know if they both had full tanks or empty tanks and was there 2 guys in the GT3 (can't really tell). Would be a more interesting if that stuff was similar. Need to find a PDK with buckets, PCCBs and light weight wheels. Then have same fuel and same amounts of weight. That stuff can make a big difference. I am hoping the RS is faster though since I have a GT3 and a RS coming to replace it....

One more question. Do both have stock exhausts? Sounds like the RS has a center delete which probably cut some weight as well.
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Old 09-23-2018, 05:53 PM
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Originally Posted by joejenie
A couple issues with this race. PDK vs PDK is good, but the RS does have a few advantages which is lighter wheels and lighter brakes. We also don't know if they both had full tanks or empty tanks and was there 2 guys in the GT3 (can't really tell). Would be a more interesting if that stuff was similar. Need to find a PDK with buckets, PCCBs and light weight wheels. Then have same fuel and same amounts of weight. That stuff can make a big difference. I am hoping the RS is faster though since I have a GT3 and a RS coming to replace it....

One more question. Do both have stock exhausts? Sounds like the RS has a center delete which probably cut some weight as well.
You sound like Dave. There were NO issues with this race. The GT3 had LESS fuel than the RS. The RS had a passenger the GT3 did not. The GT3 wheels and tires stock are lighter than the 20/21's on the RS stock. Steels versus Ceramics will absolutely not make much difference at all in a race like this. Have you ever raced twin cars one with steels and one with ceramics? I have and I bet you haven't. The RS isn't even broken in yet, the GT3 is. It's absolute hilarity that people think things like brakes make a "big difference" when most haven't even lined up races like this to even compare. The exhausts are both stock on both cars. The driver of the GT3 is also a very experienced driver and races regularly.

No matter what anyone does people make excuses and conspiracy theories. That's just the world we live in. But also let's not forget I own a .2GT3 and it is sitting next to the RS. I don't care which one wins because I own both. I knew the RS would win the minute I drove it for the first time.
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