RSR 2nd in GTLM and 1st in GTD at 24h Daytona
#17
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Agree! Although, hard for me to get a read on the race. Way too many full course cautions - keeps bunching up the field. Hope IMSA adopts the code 60 strategy for the future - so any leads gained is not all thrown away at the next caution.
Porsche seemed to have the top end speed vs. the Ford GT - which is encouraging for Le Mans. That, plus tire wear puts Porsche is a good place!
Porsche seemed to have the top end speed vs. the Ford GT - which is encouraging for Le Mans. That, plus tire wear puts Porsche is a good place!
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Yup, Pilet put in a scorching last stint and it was clear the tires finally gave up the ghost the last few laps. He was fortunate to be able hold off Calado to retain 2nd place. Great first showing.
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This bodes VERY well for the RSR as it gets back to more "normal" tracks for the remainder of the IMSA schedule where the slippery aero Fords don't have as much advantage. The car is clearly a beast. The new motor clearly isn't lacking either. BOP was fantastic this year too.
GT3R is a beast too. I've been preaching this since the car came out that in the right hands, it's as good as everything else available. It wasn't until late last year that Porsche decided to focus more on factory efforts in Blaincpain, because every other manufacturer has been throwing full works efforts to help sell GT3 race cars. I think you will definitely seem more GT3R's in blancpain next year, and hopefully a full time semi-works or works effort.
So between Conti, GTD and GTLM, Porsche almost swept the weekend, with good ole fashioned NA motors. Not to mention, McPherson strut front suspensions in their customer race cars, against full A-arm, carbon-tubbed supercars.
Turns out that Porsche does know what they are doing.
GT3R is a beast too. I've been preaching this since the car came out that in the right hands, it's as good as everything else available. It wasn't until late last year that Porsche decided to focus more on factory efforts in Blaincpain, because every other manufacturer has been throwing full works efforts to help sell GT3 race cars. I think you will definitely seem more GT3R's in blancpain next year, and hopefully a full time semi-works or works effort.
So between Conti, GTD and GTLM, Porsche almost swept the weekend, with good ole fashioned NA motors. Not to mention, McPherson strut front suspensions in their customer race cars, against full A-arm, carbon-tubbed supercars.
Turns out that Porsche does know what they are doing.
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#21
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For being an 'enthusiast' forum, I'm surprised this thread is only 2 pages long
The IMSA race was leaps and bounds more fun to watch than any F1 at the moment... loved how Lambo was one of the first to crash and then later caught on fire... also really liked to see Gordon come out of retirement and hopefully help viewership
Did anyone else gasp right before the RSR took 2nd and the Ferrari was making a move?
The IMSA race was leaps and bounds more fun to watch than any F1 at the moment... loved how Lambo was one of the first to crash and then later caught on fire... also really liked to see Gordon come out of retirement and hopefully help viewership
Did anyone else gasp right before the RSR took 2nd and the Ferrari was making a move?
#22
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The last hour of the LM race was nerve wracking for sure- I think it's showing exactly how balanced all these cars are and that it comes down to a decisive move, mistake, or risk with the Drivers. The ford GT and the Porsche both snuck underneath the Ferrari into Turn 1 because the Ferrari lost just enough grip to slide wide. One mistake cost them two positions.
The rain suited the porsche Best- if the rain would have stayed Porsche had the rain advantage. The difficult thing at Daytona is making a tire last while you slam into the banking over and over.
The FGT definitely has an aero advantage and when running flat out in the dry the porsche could draft really well but didn't have that top end to really finish the pass. Coming out of the bus stop the GT would pull away initially and then RSR would draft into position through NASCAR T4
The rain suited the porsche Best- if the rain would have stayed Porsche had the rain advantage. The difficult thing at Daytona is making a tire last while you slam into the banking over and over.
The FGT definitely has an aero advantage and when running flat out in the dry the porsche could draft really well but didn't have that top end to really finish the pass. Coming out of the bus stop the GT would pull away initially and then RSR would draft into position through NASCAR T4
#23
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This answers the question about the RSR: "the 510 hp 911 RSR racers, designed from scratch by Porsche Motorsport in Weissach". The GT3-R's engine has to be similar to the RS's, and also displaces 4.0L, as mentioned, but curious about the RSR. Since the GT3-R's engine was referred as 'ultra-modern', does that mean the RSR is based on the Mezger?
At any rate, this was probably the best Rolex-24 I've watched. And that move from Ricky Taylor when Albuquerque opened a gap was brilliant, even if a bit aggressive. But those guys were at the receiving end of such moves, and ending up in 2nd many times, so it was a good tribute to departing Max, and a good call from the stewards IMO. Really pleased by Porsche performance overall. And contrary to that idiotic error by Pruett, elder Christensen still has the goods. And yes, this race was better than all of last F1's boring season combined. Looking forward to Sebring.
At any rate, this was probably the best Rolex-24 I've watched. And that move from Ricky Taylor when Albuquerque opened a gap was brilliant, even if a bit aggressive. But those guys were at the receiving end of such moves, and ending up in 2nd many times, so it was a good tribute to departing Max, and a good call from the stewards IMO. Really pleased by Porsche performance overall. And contrary to that idiotic error by Pruett, elder Christensen still has the goods. And yes, this race was better than all of last F1's boring season combined. Looking forward to Sebring.
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#27
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Does anybody know what's the deal with both GTLM and GTD engines? Are they a version of the RS engine in both cases? They're obviously not the same engine, but would like to know what was modified. Lots of posts about lubrication being the achilles heel, and Porsche trying for 3 years to fix it. The great news is whatever they used on those cars worked, and hopefully it's the end of this embarrassing saga of engine failures. Just curious what was done to them, their displacement, and their redlines. Also glad to see the Porsche catching up the GT (instead of them just walking away, like on Le Mans), meaning at least this time the GT won fair and square.
RSR obviously highly modfied, lightened internals and materials. Chassis upper and lower wish bone up front. Oiling obvoiusly modified for race conditions. Engine likely will make 700 hp unrestricted.
GT3R I think is the same engine as RS/R 4.0L but with likely additional oiling for race conditions and other small race mods. Chassis basically same as RS set up to race spec. I don't think they run RWS either but not sure.
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For being an 'enthusiast' forum, I'm surprised this thread is only 2 pages long
The IMSA race was leaps and bounds more fun to watch than any F1 at the moment... loved how Lambo was one of the first to crash and then later caught on fire... also really liked to see Gordon come out of retirement and hopefully help viewership
Did anyone else gasp right before the RSR took 2nd and the Ferrari was making a move?
The IMSA race was leaps and bounds more fun to watch than any F1 at the moment... loved how Lambo was one of the first to crash and then later caught on fire... also really liked to see Gordon come out of retirement and hopefully help viewership
Did anyone else gasp right before the RSR took 2nd and the Ferrari was making a move?
#29
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A normally aspirated motor making 175 HP per Liter on pump gas (not Methanol nor Nitro Methane) would require incredibly high revs not possible with this engine configuration (4.0L Flat-6) and definitely not for a 24 hour endurance racer.
EDIT: I just looked at this calculator and the revs would have to be ~11,000 rpm and the max torque of the RS would have to be maintained to that point without coming down the curve at all from peak torque (which is at only 6,250 rpm) to make over 700hp. Several impossibilities here...
http://spicerparts.com/calculators/h...que-calculator
EDIT: I just looked at this calculator and the revs would have to be ~11,000 rpm and the max torque of the RS would have to be maintained to that point without coming down the curve at all from peak torque (which is at only 6,250 rpm) to make over 700hp. Several impossibilities here...
http://spicerparts.com/calculators/h...que-calculator
Last edited by GrantG; 01-30-2017 at 06:49 PM.
#30
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A normally aspirated motor making 175 HP per Liter on pump gas (not Methanol nor Nitro Methane) would require incredibly high revs not possible with this engine configuration (4.0L Flat-6) and definitely not for a 24 hour endurance racer.
EDIT: I just looked at this calculator and the revs would have to be ~11,000 rpm and the max torque of the RS would have to be maintained to that point without coming down the curve at all from peak torque (which is at only 6,250 rpm) to make over 700hp. Several impossibilities here...
http://spicerparts.com/calculators/h...que-calculator
EDIT: I just looked at this calculator and the revs would have to be ~11,000 rpm and the max torque of the RS would have to be maintained to that point without coming down the curve at all from peak torque (which is at only 6,250 rpm) to make over 700hp. Several impossibilities here...
http://spicerparts.com/calculators/h...que-calculator
The 2015 Mezger RSR redlined at 5 figures in LM guise last year in GTE Am trim