maximmm

I measure it online during session, very useful to have tyre pressure monitor. I will try to decrease next week till 25 cold.

advantyper

Tks for the great info

David A

Is the 3rd radiator available for the 991 from Porsche? Or you used the one for the 997.2?

chuckbdc

- factory kit with the necessary parts for the 991:

http://www.suncoastparts.com/product...=991SENGINEPER

SB

I'm not an oil expert, but I think many are getting worked up about oil temps for no reason. Here is why...
As far as I can tell, non-synthetic oil starts to break down at 240 degrees, while synthetic oil holds up to over 400 degrees. I think that unless you're using non-synthetic oil or doing endurance racing, the third radiator is an overkill..... and adds weight and probably has negative aero consequences on top of that. I've run my non-sumped 997.1 with typical track temps in 270-275 range for many years, without any issues. I think that you should be more than comfortable with whatever temps you get as long as you're not getting into the red zone of the gauge, which is 300 if I remember correctly.

ajag

You're probably right to an extent, I usually run around 270-275 during sessions, but I have gone into limp mode once so I'm kind of paranoid. If I were going to keep the car, I'd definitely get a third radiator.

SB

I can only speculate, but I suspect that the limp mode is not oil or motor temp related if your gauges were not in the red.... It may be PDK temp related, or perhaps something completely unrelated to temperature at all. It would really be interesting to find out the actual reason for the limp mode.... please ask your dealer next time you visit and share the answer... thanks.

ajag

It was temp related, the gauge was near 300 and the warning stated overheating, I had my independent race shop check the codes and that's the only information they found. No issues w/ the radiators, etc.

SB

Cool thanks for sharing. Yes, I'd say that if you are getting very close to the red, or 300, it's time to upgrade. Otherwise, I wouldn't bother.

BGB Motorsports

Hi Folks,

We just hit 25K miles and thus far, Porsche fixed everything that was on the list. My 2nd gear grinding that had occurred since mile 00008 was resolved with a new 7-speed MT, the horn was fixed, I don't know if the crank sensor was replaced or not to pre-empt the issue I had with the car shutting off, and whatever little items were resolved; everything was taken care of as promised. Porsche of Orlando has a very solid reputation for service and as usual, they took care of us.

Since writing we have finished the prototype of the harness bar we will offer for the 991. Below is a photo with a link to the options to some other very cool stuff we have been working on.

Between the Guard Transmission limited slip differential, the lowering springs, the wider track gained from the wheel stud conversion and 18mm wheel spacers and the tuning we are finishing, this car has been unbelievable for doing dual-duty up and down I-95 to/from PBIR. Given that this is the only 991 you can get with a manual, if you guys haven't driven one with some bolt-ons and a set of Power Kit heads, you need to test drive one. I hear that a lot of people are not ordering GT3s because of the transmission that is offered. This car has potential if you are a die hard manual transmission driver. I am a total PDK convert but we have never been allowed to run that transmission given the advantage is creates in motorsport.

http://teambgb.com/for_sale_retail_parts.asp

SB

Hi
Can u please describe your second gear issue symptoms? My second gear grinds a bit too during normal driving most of the time. Did yours grind a lot? Under what conditions, etc?

Thx

BGB Motorsports

I am glad that you said something because I had been checking back from time to time and I was beginning to think that I was the only one. Just as you described, it is during normal driving and while it does happen during hard driving, it is not as prevalent.

I went and did some homework. Since the new 7-speed manual shares so many parts with the PDK variant and therefore has the same gear stacks, it no longer has 2nd gear in a place where it typically would. So therefore it has a different procedure/mechanism for the 2nd gear shift that is not where it typically is when outfitted in PDK and I would assume that a few were machined differently ever so slightly. The reality is that I had the issue the 1st day I ever drove the car as did anyone else who drove it. I love driving the car so much though that I refused to give it up just to have them put a new transmission in. Take it to your dealer and let them drive it. They'll feel it.

SB

Mine has done it since day 1 too.
Not terrible, but annoying enough that I skip shift 1-3 sometimes. Thx. I'll have my dealer look into it.

BGB Motorsports

I received some photos yesterday from the owner of the 991 we built. Nothing but smiles as far as performance on track as "Capser" is holding his own against 997.2 GT3s and other cars that should be stronger! This brings a smile to our faces as well because we still maintain that a 991 3.8L S with a 7 speed manual and some track goodies, with or without a Power Kit, is a very respectable track weapon!

We now stock control arms, limited slip differentials, harness bars, pads, rotors and everything else you would need to make your 991 bulletproof on track. The additional air-oil oil cooler setup will be done by xmas and available for sale.

Thanks for following!

SB

Nice. Thanks for posting.