Z3SpdDmn

My Porsche tech friend was going to code the GTS tune into my car, but he needed to keep it overnight because there are so many modules that need to be coded, it would take that long. Unfortunately, I was just passing through and couldn't leave the car. The point is, all our cars have the GTS power inside of them, ready to be simply coded to be activated. So, yes, it's just a tune. Or, maybe more accurately, it's a DE-tune. Just less of a de-tune than the base Boxster or Cayman S'
I'd expect that you'd likely still see power gains. Just not as much as a base car. Same ultimate numbers.

Mark Dreyer

I can see wanting to tune a modern Porsche to get more power for track use, but who really thinks their modern Porsche is slow on public roads? My 981 CS and 981 Spyder both get to go to jail speed so fast in stock form. I would tune the Cayman only because it is my track car. For daily driving, I recently added an 89 Carrera, and its 217 hp is just about perfect for having fun all the way to redline in multiple gears.

ekam

But how much does your 89 Carrera weight compare to a modern Porsche?

It's always funny to me that the regular 987/981 guys are always like "enough power" but guys over at GT4 forums are doing 4.5L conversions...

Mark Dreyer

89 Carrera 2866 llbs
2016 Spyder 3064 lbs.

NAMR6MT

These custom flash tunes that yield 20 or so HP, to me, are more about the elimination of that "flat spot" that occurs at 3500 rpm and the ability to allow the engine to run more smoothly/freely. A ~6% HP bump is hardly noticeable. The perceived ease of engine spin and increased throttle response is certainly noticeable. It was $950 well spent IMO.

evoq007

FVD does not do group buys, however they do offer the forum members a discount! PM Rhonda@FVD and she will provide a link to all!

ledbette

You'll get that from a Cobb tune and it takes about 5 minutes and is fully reversible/resellable.

PJLaud

Figured this is the perfect place to ask this - any issues or concerns with accelerated engine wear with a tuned setup in a 981CS? I know that the motors are near-enough-to-identical to the 350 HP motors in the 991 base, and pushing even an NA motor from 325~ to 350 isn't a massive jump. Just kinda airing out my hesitation for anybody to tell me if I should/shouldn't worry about it. I also get the oil analyzed prior to winter storage each year to keep tabs on anything I should be aware of to keep everything healthy.

Z3SpdDmn

Different strokes for different folks. If nobody felt the need, then only a base 2.7L boxter and cayman would be sold and you wouldn't have your spyder. In fact, nobody really NEEDS more than 150hp....
Personally, I think 300hp is a sweet spot. But if I can get a 315->350 bump for relatively little outlay, then SURE, I'm gonna do it.

ekam

To me, "Too Much Power" is a Superformance Cobra with a 427 Roush engine & 335 rear tires. You literally can't put the foot down in any gear because it will try to kill you.

But then, I've driven a tank and flown a jet... so YMMV.

Kitc2246

I can see the GTS tune being "inside" a 2015-16 S but I have a 2013 Boxster S with Sport Chrono. Doubt the GTS tune is inside my 2013. Considering the Stop Sale on models with SC I'm betting you couldn't get a GTS tune from a dealer right now.

ICNU

Your 2013 S is the exact same 3.4L motor as all other 981 S variants and years including the GTS and the base 911 model. The hardware is all the same and therefore so are the performance possibilities. The only difference is the software/ECU tune the car is using at the time. Dealers dont sell or install "GTS tunes" or any other tunes as far as that goes, and there is no such thing as the tune being "inside" any car already whatever than means? Its just a matter of the changing the ECU programming maps to remove the restrictions between the different models and gain that missing performance. This is all done aftermarket, and a good pro tune with sport headers can get you a good bit more than the 350HP factory engine tune used in the base 911 Carrera 3.4

Last_935

I have to agree with that sentiment. I too have been desensitized to the term "Too Much Power" ever since owning and racing a 935 (see avatar). That car weighed 2260# and had a twin turbo motor dyno'd at 836 bhp at standard boost - translating to a 2.7:1 power/weight ratio. The fasted the car was officially clocked was 218mph across the start/finish line during qualifying at Daytona. The car had a 4 speed transmission with a locked diff and the only driver's aides were a manually adjustable front sway bar and boost controller. Now that was a real race car. I used to ride motorcycles, as well, until my wife made me sell them due to my lack of fear of speed. With that said, I am seriously considering a Superformance GT40 as a street/track toy.

Landshark92

Any idea why the VFD tune goes up to 362 hp for the base 991 3.4L engine and only goes up to 352 hp for the 981 3.4L? I thought these engines were identical.

DriverDaily

The 991 has a better intake manifold than the 981. It's because the 991 has more room above the engine.