Thanks, I guess we are deviating from the OP...but regardless.

I did some logging on my C2 too, all at 90-97F ambient, high humidity (Florida), and all with stage 1 tune. With some minor cooling modifications and a fixed wing (de-activated aero), I am still able to keep the temps just under/at 140F up to 7400RPM, with multiple pulls, with little cooling off in between. I got up to 500hp/500 TQ (ECU-reported). Not close to 100F, but I am happy considering my ambient was > 90F and the car is tuned on small turbos with up to 23 psi boost. I will run another test next week with a small airflow modification.

PS: Would love to see the impact of a CSF intercooler, but $4k+ install for a few degree when I am not encroaching the 150F yet is a bit questionable for me. I do have the larger turbo inlet pipes...

On a side note: Some simple modifications I did impact more how quickly the car can cool down when I let off the gas. That helps when doing repeated pulls with just a few seconds or stretches of street in between where ypu have to go off the throttle.

 

Mr. Gonz/Tobeit - Thanks to all for sharing your data. I would also like to see the IAT results at 90F, Mr. Gonz. Thanks also for your info Tobeit with stock intercooler @ 90F with std bumper.

Tobeit - cost is a valid point. I was able to source the CSF intercooler and all do88 piping lightly used for $3k. I probably would not have pulled the trigger if I was paying retail @ $4200 for the intercooler alone.

 

One of the guys at the track worked with a local shop to adapt a water spray system for the intercooler on his high octane tuned 991 Carrera S. He said it worked well and prevented the significant power loss that occurs as a session progresses, although I don't think he ever did any data logging to quantify the results. The GT2 RS water-injection system is reportedly capable of reducing IAT by ~36 F. If you're able to share, I'd be interested in learning more about how you improved the intercooler's performance.
Here are a few charts showing the temps for several ambient temps that I see at the track. 50 F seems to be about the ideal temp for a tunned car on track.

 

Water injection would be cool.

 

I guess we are doomed in Florida. 50F? Maybe some cool winter nights.

 

Is there any advantage to having an external mister/sprayer (like Sti's or a prior Gt2 did) on these? I've never seen the Gt2 one in person (from the 991 I think?) but wonder if that can be fitted? I've wondered why nobody does this any more. Is it just not effective on this intercooler location? Has technology moved on?

On my old STi from '04, I used to hose down that top mount intercooler between laps frequently. A friend converted his to spray some other fluid that always felt cold (don't know what he did) and another created a "sleeve" that surrounded his (albeit aftermarket and enlarged) water tank in the trunk with dry ice bricks. Most Subaru folk seeking power just retrofitted to a front-mount intercooler, but I was never willing to mod the car that extensively. But, adding a tank of distilled (chilled or otherwise) to spray the surface of the intercoolers (they get wet from rain anyway) doesn't seem invasive to me.

Any insight? Thanks!

 

This is still an effective method for cooling/helping the intercooler, especially in the aftermarket world on other platforms. The issue is not that technology has moved on, it's the specific type of consumers we have in the Porsche world (especially latest-gen owners).

The demographic of Porsche owners is the issue. We don't have basic modifications available for these cars that have already existed for decades on other platforms. Boomers don't care about performance or actually improving how their 911 drives, they just want a cool looking car to take to cars and coffee on Sundays and drive real slow downtown. Baffling really

My local Porsche Club looks like it could be an ad for life insurance or some new trial medical drug. I swear there's not a single person below the age of 60 in it.
All stock cars, with 'upgrades' that constitute seat inserts, cupholders, decorative frunk covers, or for the more brazen owners, color matched fire extinguishers for their cars if they ever dare to push 90mph on a backroad for the first time in their life.

We don't have any flexfuel compatibility, intercooler upgrade options (honestly the CSF option is not that good, but I think this is more of a testament to the OEM cooler being so good), map switching for 992.1, proper bolt on brake upgrade kits, suspension upgrades for non gt3 cars are pretty underwhelming, fuel system upgrades (there is literally only 1 company that has made a hpfp upgrade and it costs $8k+ lmfao), aftermarket turbo upgrades (pure sucks), port injection upgrades, etc.

Honestly having only 1 or 2 choices for even the most basic of mods like intercooler upgrades, plenum upgrades, intake upgrades, etc is very sad, but if the demand is not there then you can't really justify the R&D of making performance parts or kits for these cars like an intercooler sprayer or port injection manifold.
These are all things that would help the platform a ton and yet there is no market for it.

 

I agree with you about the average Porsche demographic. I bought mine at 41-ish, which is on the younger/youngest end of the demographic (…trust fund babies, kids of celebrities, etc. are youthful exceptions).

With regard to cooling, we basically have CSF, do88, Wagner, and one other brand slipping my mind right now in the name brand category. Then there are the EBay variants. You don’t think the Ohlins, Bilstein, Dundon, KW, etc. options for the non-GT cars are exceptional offerings??? The kit Dundon sells - produced by MCS - is Manthey level.

 

I'm 30, so it's very jarring to see the difference compared to other car communities/platforms I've been a part of. Was originally gonna get a mclaren 600lt but the unreliability worried me, so looked for any Porsches that were 600+hp capable and RWD. That's how I landed on the 992.1 S / GTS platform.

Dundon is fantastic but the prices are astronomical, GT car levels of pricing for non GT cars. This is kinda the overarching issue with the Porsche world though. Only a small handful of vendors so prices are at premiums because there is no competition or need to improve things.
Regarding the other suspension companies, Bilstein has kinda fallen off in the last decade. They used to be fantastic back in the day. They haven't even released a new coilover kit for the 992.2 to account for the wider range of dampening that those cars have from the factory. The only proper suspension on the market for the 992 non GT cars that doesn't cost 5 figures is Ohlins or JRZ. Both requiring EDC deletes.

Would just really love to see more innovation and competition in the Porsche world, it would only benefit owners further.

 

The non GT 992s don't even have adjustable camber plates on any of the brands you listed

 

I think Porsche still has a fairly good aftermarket support. It's not a Honda or BMW in that regard, but that's okay and understandable. Btw, it did give me a chuckle hearing from a 30-year-old talking about back in the day...😊😊

 

That’s where Dundon comes in. They make adjustable suspension components. I’m in contact with them currently about their Basic kit (…not that I particularly “need” any of those components for the back roads/canyon driving I do). The Advanced/Pro kit is even more extensive.

 

LOL I am definitely getting old myself Can't deny it anymore I'm afraid.

@M3Inline6 They have adjustable lower arms, but no camber plates. Camber plates are preferable because you can at least adjust the front camber relatively easily from the front (and this is where you'd have more camber versus the rear).

I settled for Tarret camber plates and will probably end up with Ohlins Road and Track coilovers, was disappointed to see that even Ohlins only offers 1 way adjustable setup for the non GT 992s.