Jonas Ribbelov

I would just like to share with you Porsche's official power and torque figures for the stage I & II PowerKits. I have been looking for some time and searched the archives but there seems to be some confusion about the Stg II torque figures. Anyway here it goes;

Std: 408 bhp 540 nm
Stg I: 430 bhp 540 nm
StgII: 450 bhp 585 nm

This information I got from Porsche's US webiste.

Tour18

Thanks. I'm stumbling through the upgrade decsion right now...

Bill S.

The Ruf Turbo R is far ahead of the 450 kit. I had that kit for about a year and sold it. It only made the car about 2 seconds faster to 150 mph over stock.

Rassel

Jonas, could you please post where on the US website you found those figures?

Jonas Ribbelov

Here u go

http://www2.us.porsche.com/english/u...odelle_993.htm



//Jonas

Rassel

Ah, you've taken the figures for the GT2, Turbo and Turbo S?

Stummel

Nice overview of 993s on the porsche website.

Claimed topspeeds:
GT2 430PS is 295kph
993TT 408PS is 290kph
993TTS 450PS is 300kph

Anyone knows how much of the difference is due to wings and aerokits?
(downforce vs. topspeed)

I mean the GT2 should have a lower topspeed with the huge wing and downforce.
Does that mean a 430PS 993tt with the standard wing should go faster than 295kph?

And what is about the turbo s wing and front bumper? Does it add topspeed?

ttAmerica RoadsterAWD

Do these HP numbers corespond to power to wheels, or power at flywheel?

Anybody?

Jaime

CP

I just spoke with RUF at Dallas, and their Turbo-R conversion (starting with a 993tt) is about $25k. That'll be my choice in a heart-beat.

Good luck with your decisions.

CP

ca993twin

Jaime,

All of those HP numers are "flywheel" HP. Measured on an engine dyno, not a chassis dyno.

ttAmerica RoadsterAWD

Hmm, now I'm confused about my car. Powerhaus in Arizona quotes in his receipts that the ecu on my 993tt engine was sent to Porsche AG in Germany for an upgrade to "500HP at the flywheel, 425HP at the wheels". Does this sound familiar to anybody? Was this a part of the factory power kits? Or, perhaps a reproduction of HP from the various GT/GT2/GT3....or is it all one and the same?

I do have a K&N Cone air filter, and noted I had the stock 3.8bar fuel pressure regulator. I recently changed it to a 5bar. Turbos are stock K-16's. What exactly did this "upgrade" do to my otherwise internally stock engine.....anybody with ideas?

Jaime

911/Q45

Sounds like some overly optimistic marketing, most likely an S equivalant program on the ECU equaling about 430 flywheel hp.

Rassel

Jaime, are you sure that you have stock K16 turbos?
Porsche fitted K24 when they went beyond 430HP.

Kevin

Jaime, with all your concerns over the last few months.. Find a good dyno and give yourself piece of mind. K16's in stock form are not going to give you the HP levels of Porsche power kits that were supplied with K24's..

Jean

Stummel, good point, GT2 had a shorter 6th gear ratio. My guess is that it had the rev limiter set higher than 6,700 RPMs. The wing (depending on the setting) and flares will definitely impact top speed by more than 5-7 mph.