mainly

i just read one tuner has a tune that gets 30 hp and over 30 lbft to the wheels on 91 oct.

Money2536

That's news to me. I don't know of any ECU tunes.

Mike in CA

The car hardly lacks for engine performance. I have to wonder how much testing has been done on the reliability of this "upgraded" tune.

I wouldn't risk my 5 year warranty for a dubious power increase.

Maverick787

Wouldn't risk a failure and void the warantee!

alpine-al

As far as I know, no one has cracked the encrypted 991 Siemens ECU. These rumored tunes are not like prior tunes that modifed the programming in the ECU. Instead, a "tuning box" is connected to some of the exisiting sensors and it tricks the ECU to get more air and fuel into the engine. I can't imagine doing this to a car that's under warranty or to a car that really doesn't need more power.

.

reidry

Porsche provides a track warranty, stick to tuning the exhaust note and leave the ECU alone, keep the warranty intact and drive the heck out of it.

Ryan

carcommander

After all the engine issues I would not tune this car. It makes more HP than most of the recent race cars. I doubt you could feel 30hp anyway.

Mech33

Whoever puts an aftermarket "tune" on the GT3 motor is out of their mind.

Macca

You are stirring again!!

Impossible to get 30lbft out of a NA flat 6 without capacity increase, cams and significant work to exhaust. The factory couldn't get bugger all out of this engine over the 991S so no way its happening by ECU alone.

rosenbergendo

Is this guy serious or trolling?

mainly

no not trolling. the company is ECU tuning group. if you want to check them out. i dont think they bother with forums ,and not even sure if theyre tune is complete yet. i think theyre based out of california. i had one of their tunes on my m5.

btw i think 30 whp would be a significant difference on this car, w/ being so light.

mainly

well i would certainly welcome another 30 whp. certainly another 30 wheel torque! wouldnt you???

i tuned my cls to an extra 180 hp, extra 300 wtq and i would still like a ilttle more. lol


not sure about testing or reliability but its only 30 hp. surely the engine can handle another 30 hp....?

LAGinz

I would be very surprised if the engine could not handle safely another 30hp. After the previous engine debacle, I would expect that Porsche has made sure the current version is at least that much overbuilt.

hfm

Dyno? Link? Why are these claims always unsupported? Maybe he's like the guy who supposedly found 12 hp that Porsche's team of cup car engineers overlooked.

https://rennlist.com/forums/991-gt3/...d-991-gt3.html

Dan (thinks these threads are so stupid)

rockitman

^^^This!