V-TT

What are safe WHP / WTQ numbers for a modded 992 with a manual trans?

I saw a few guys reporting 600whp & 530wtq, has that been proven reliable? Are rods & pistons forged? What is the weak link in these cars?

Carrera-T

I would also be worried about the driveline limits. For example clutch packs and differential.

V-TT

You’re right. I’ve re-phrased the original post.

detansinn

The driver is the weakest link in these cars.
Invest that money in driver education instead. Take some classes. Do some HPDE/track days. You’ll see a greater ROI and no CELs.

MrOhnoez

I know at training our regional trainer told us the engine was made to handle up to 700 hp
That doesn't mean anything else connected to it can handle that LOL
I'm more interested in the torque/hp curve on the 911 for the drivers car that it is over crazy HP
I loved my M2C because it had a flat torque curve which was great for sliding!

PorscheObsessed

It’s about 650 +|- 50hp, but could break things at 600. The engines are not built for large hp
applications. Look to G80 M3 for 800hp
plus applications with minor bolt ons.
Id reach out to ES Motor and get their take on high hp 991 and 992s. I don’t think too many US tuners are going for high numbers as those boys out of UK.

mcacs1

I wouldn't mind an extra 100 hp on my base 992. However, each time I think about it, it's a trade-off between warranty/reliability vs. actual need of more hp for the road.

aways

I was told by a Porsche salesman recently that an M-engineering stage 1 tune for the base Carrera or the T would *not* void the warranty.... I find that hard to believe... Anyone know for sure?

MrOhnoez

It's not up to the dealership.
If an engine pops, porsche wants EVERY bit of info.
It's up to them, and I REALLY doubt they will fork over 30+k for an engine if someone tuned it.
Some companies offer aftermarket warranties but it ends up being a fight between factory warranty and the tuners warranty while the customer is stuck in the middle wondering who is reimbursing them for the costs.

CurryPuff

Speaking to a well respected service manager in the bay area recently, coincidentally about a CPO car on sale that previously had a M Engineering tune, I was told the service team is unable to tell if a car is tuned or not based on what they see, but, if there is a tune active and the data is shared with Porsche, they can tell easy enough.
However, if the car is flashed back to stock, it doesn't leave a flag on the ecu to say it was tuned, similar to how other VAG cars do.

TheOtherDave

That is funny (about them not being able to tell), maybe they just don't want to know.

I was (and still sort of am) in the Subaru STI world (I still have a '17 STI with a mild tune) and it is fairly common for
a Subaru dealer to deny engine warranty claims for suspected tunes. The ECU stores the number of engine
starts since the last ECU flash. People would blow their engine up and then pull the tune and when they
took it to the dealer they would say something to the effect of "You only have 1-XX engine starts stored in the ECU
you must have had a tune on it......Warranty denied."

I suppose you could pull the tune and then sit and start/stop the engine every few minutes for a few days
but if your engine is shooting pieces through the crankcase (which isn't uncommon in the STI tuner world) this might be problematic.

V-TT

I’m quite sensible with most things in my life, but modding cars is n exception, haha. While I certainly appreciate a factory warranty, it’s never stopped me from doing mods.

As for the dealer, I am convinced that Porsche can prove a car was tuned, if they decide it’s important to them find out, such as if there is a $30k claim for a new engine. I don’t think the local dealer will spend the time if you are coming in for routine work, but if something goes, they’ll look for any way not to accept the liability, and having a tune is an easy way out for them.

In my case, all this is irrelevant as I’d be looking for a full bolt-on car, with Pure 800 or Pure 900 turbos. I was hoping to hear close to 700 whp is “safe”, without having to build the engine - at least for the time being I am not looking to build a whole new rotating assembly.

I also find it interesting the TQ numbers are comparatively low to the HP values. My 997.1 Turbo, HP & TQ are roughly equivalent (600-600) where as the TQ appears to be 10-15% lower than HP on these 3.0 engines. Perhaps the smaller displacement….

zachr

Redline on the 997.1 turbo was under 6800. HP is a function of torque times RPM, so higher redline means more power given the same torque.

zachr

As far as what's possible and what's safe, perhaps @M Engineering or @Flat6Motorsports have done pure 700/800 on a Carrera and could speak to that?

jlegelis

Get a 992TTS is you want / feel you need more HP - you are starting with a larger displacement in that platform, hence your top number will be greater. OTOH, as others have mentioned spend the upgrade dollars on track time and you'll be a much better driver overall, and will be able to extract more from what you already have...