Cayman in GX hanging tough at Daytona
01-29-2013, 01:36 AM
#32
Rennlist Member
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01-29-2013, 02:34 AM
#33
Race Director
Can't recall where I read it but the GX Caymans used the 3.8L X51 version of the 9A1 direct injection motor. Same basic motor as the 997 GTS. It doesn't have an IMS like M96 and M97. But it's not the Metzger design as used in GT3s, GT2, TT. Not claiming to be an authority. Just what I have read.
01-29-2013, 02:37 AM
#34
Race Director
01-29-2013, 11:32 AM
#36
Race Director
Ray S...yes...thanks this video is what I was looking for. The 9A1 supposedly has a built in dry sump.
01-29-2013, 12:55 PM
#37
Addict
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Not to be rude, but we did that. In 2010 and 2011, the 3.4L DFI Cayman S that we built and developed in the Continental Tire GS class beat the port flow EFI 3.8 997 from TRG driven by Pumpelly, almost every race. NOW, given that Pumpelly drives for us, we know he's no slouch and is probably one of the best drivers in the country in a street stock 997. Top 3 easily. SO...again, not to be rude, but we alreayd did that!
In order for a Cayman S to not be a moving chicane with a DP passing at 190mph, there's no way a 3.4L is up to the task. You need a 400rwhp variant like the DFI X51 GTS motor.
In order for a Cayman S to not be a moving chicane with a DP passing at 190mph, there's no way a 3.4L is up to the task. You need a 400rwhp variant like the DFI X51 GTS motor.
If the 9A1 is not ready for racing at this stage, I don't know what else from Porsche is ready. It has proven reliable on your efforts at Grand-Am GS, and successful as well.
This year's 24 hours race on a 31 degrees high banking track surely proves an engine quality and reliability.
Lap times were impressive too, a Cayman 9A1 3.8 X51 lapping in the 1:54s is impressive, faster than all the GS cars, and just 7 seconds behind the fastest GT cars. Let's be clear that a Grand-Am Porsche GT3Cup is a faster car than a standard GT3Cup.
Definitely, the Cayman was the best looking Porsche on the racetrack, and the only two better looking cars (at near 5 times the cost), the Audi R8 (almost took 1-2-3 in GT) and the Fiat (of course).
Awesome!!!
01-29-2013, 03:50 PM
#40
Nordschleife Master
Without taking anything from the excellent runs that earned GX podium spots...
Assuming or suggesting that a podium finish (in a different class) proves hardware superiority is flawed. A trio of Mazdas that completed less than 150 laps COMBINED is not comparable to the effort put in by Audi or even Ferrari. (the ONLY car that a mazda beat was the viper) 8 Cup cars beat the GX winner.
Congratulations to Napelton, Bullet and BGB!
Assuming or suggesting that a podium finish (in a different class) proves hardware superiority is flawed. A trio of Mazdas that completed less than 150 laps COMBINED is not comparable to the effort put in by Audi or even Ferrari. (the ONLY car that a mazda beat was the viper) 8 Cup cars beat the GX winner.
Congratulations to Napelton, Bullet and BGB!
Yes, GX only had 6 entrants and was a small class. It was 3 factory backed Mazdas built as racecars 6's against 3 privateer custom built street cars with engine swaps that were converted into racecars. The Mazdas all had an Xtrac sequential gearbox. We had a G87 synchronized street box in our crocs. The little midengine street car that Porsche Motorsports has shunned for the last 5 years went out and did the marque proud, whether or not the mothership wants to acknowledge that.
01-29-2013, 07:19 PM
#41
Race Director
That comment leaves out one very key component. Like the Audis and Ferraris, the Mazdas had FACTORY support there. Prior to the race their were two page ads from Mazda talking about how they were going to go show off their engineering superiority at Daytona with this fancy smancy Sky-Active TD.
Yes, GX only had 6 entrants and was a small class. It was 3 factory backed Mazdas built as racecars 6's against 3 privateer custom built street cars with engine swaps that were converted into racecars. The Mazdas all had an Xtrac sequential gearbox. We had a G87 synchronized street box in our crocs. The little midengine street car that Porsche Motorsports has shunned for the last 5 years went out and did the marque proud, whether or not the mothership wants to acknowledge that.
Yes, GX only had 6 entrants and was a small class. It was 3 factory backed Mazdas built as racecars 6's against 3 privateer custom built street cars with engine swaps that were converted into racecars. The Mazdas all had an Xtrac sequential gearbox. We had a G87 synchronized street box in our crocs. The little midengine street car that Porsche Motorsports has shunned for the last 5 years went out and did the marque proud, whether or not the mothership wants to acknowledge that.
01-30-2013, 07:56 AM
#42
Correct me if I am wrong but that is how I remembered it.
01-30-2013, 03:17 PM
#43
Three Wheelin'
Not it does not. From what I understood it does not have an external oil tank (such as the Mezger engines), so all oil is in the sump (making it wet methinks) but they have several pickup points in the sump where they can pump the oil and make it circulate (so there is no chance of starvation in big g corners). It's a bit of a hybrid solution between dry and wet sump.
Correct me if I am wrong but that is how I remembered it.
Correct me if I am wrong but that is how I remembered it.
01-31-2013, 11:35 AM
#45
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The single biggest differences would be the following:
1.) motor swap with extensive intake re-design
2.) front end clip to add dual master cylinders and fuel cell
3.) removal of the power assist brakes
4.) carbon fiber everything
5.) air jacks
6.) beefier roll cage (not much though since Interseries already tie to the shock towers)
7.) front caliper upgrade
Not as much as you would think but it is a lot of labor.
1.) motor swap with extensive intake re-design
2.) front end clip to add dual master cylinders and fuel cell
3.) removal of the power assist brakes
4.) carbon fiber everything
5.) air jacks
6.) beefier roll cage (not much though since Interseries already tie to the shock towers)
7.) front caliper upgrade
Not as much as you would think but it is a lot of labor.