2008 Cayenne Turbo Performance upgrade

[Hudnu46]

Whoo Hoo... there it is! 589.6HP :eek: I was shooting for 540HP but Pit Stop Motorsport (VA) was able to mod the ECU to an additional gain of +50HP, the bypass tubes +27.6HP, and the V-Flow air induction system +12HP. Took her for a test drive and man... what a ride, even chirped a gear. Here’s the setup:

2008 Cayenne Turbo – 500HP

Autothority Performance Software - 50HP

Cayenne TT 2ndary Catbypass Pipes – 27.6

EVOM's Cayenne TT V-Flow - 12HP

= 589.6HP :thankyou:

[stealthn]

Whoo Hoo... there it is! 589.6HP :eek: I was shooting for 540HP but Pit Stop Motorsport (VA) was able to mod the ECU to an additional gain of +50HP, the bypass tubes +27.6HP, and the V-Flow air induction system +12HP. Took her for a test drive and man... what a ride, even chirped a gear. Here’s the setup:

2008 Cayenne Turbo – 500HP

Autothority Performance Software - 50HP

Cayenne TT 2ndary Catbypass Pipes – 27.6

EVOM's Cayenne TT V-Flow - 12HP

= 589.6HP :thankyou:

Very nice! who's cat bypass pipes did you use? Was the truck dyno'd after each upgrade or how do you know how much each made?

[Hudnu46]

The pipes are from Fabspeed. Unfortunatley I didn't dyno the upgrade process, the numbers are from advertised upgrades.

Whoo Hoo... there it is! 589.6HP :eek: I was shooting for 540HP but Pit Stop Motorsport (VA) was able to mod the ECU to an additional gain of +50HP, the bypass tubes +27.6HP, and the V-Flow air induction system +12HP. Took her for a test drive and man... what a ride, even chirped a gear. Here’s the setup:

2008 Cayenne Turbo – 500HP

Autothority Performance Software - 50HP

Cayenne TT 2ndary Catbypass Pipes – 27.6

EVOM's Cayenne TT V-Flow - 12HP

= 589.6HP :thankyou:

Very nice! who's cat bypass pipes did you use? Was the truck dyno'd after each upgrade or how do you know how much each made?

[SeattleBum]

Whoo Hoo... there it is! 589.6HP :eek: I was shooting for 540HP but Pit Stop Motorsport (VA) was able to mod the ECU to an additional gain of +50HP, the bypass tubes +27.6HP, and the V-Flow air induction system +12HP. Took her for a test drive and man... what a ride, even chirped a gear. Here’s the setup:

2008 Cayenne Turbo – 500HP

Autothority Performance Software - 50HP

Cayenne TT 2ndary Catbypass Pipes – 27.6

EVOM's Cayenne TT V-Flow - 12HP

= 589.6HP :thankyou:

Is the 589.6hp the ACTUAL dyno number or your guess as to what the crank number would be? Or is it just the number you arrived at by adding up the advertised numbers? You do realize that if you just added up the advertised numbers then you are likely waaaaaaaay off. That's just not how it works. If it was then my Cadillac (supercharger, headers, exhaust, intake and tune) had about 700hp. Post up your dyno when you get a chance. I'm guessing you're only making around 420-440hp at the wheels (assuming about a 20% drivetrain loss).

Also, if you chirped a gear in that 5800lb AWD automatic behemoth then you better look into new tires b/c that shouldn't happen at those power numbers. Anyway, congrats on the mods and enjoy your car!

Edited July 14, 2008 by SeattleBum

[Hudnu46]

As I mentioned before the number are the "crank number's" but I'll be more than happy to post the results when available, I'm curious to know the true numbers myself. Keep in mind Porsche advertise the '08 Cayenne Turbo comes stock at 500HP. I tried to use a GTECH device prior to the modes (didn't use it properly) and got 487HP (stock) with outside temp 93 degrees and forgetting to turn-off the PCM tracking control. I doubt the tyres are an issue; I bought the car new November '07, put winter tyres on until March '08 so the tyres only have 4 to 5 months on them.

Wheels & Tyres: 21 x 10J with 295/35 R 21 tyres

Gross vehicle weight rating (lbs) 6,493, curb weight (lbs) 4,784

Whoo Hoo... there it is! 589.6HP :eek: I was shooting for 540HP but Pit Stop Motorsport (VA) was able to mod the ECU to an additional gain of +50HP, the bypass tubes +27.6HP, and the V-Flow air induction system +12HP. Took her for a test drive and man... what a ride, even chirped a gear. Here’s the setup:

2008 Cayenne Turbo – 500HP

Autothority Performance Software - 50HP

Cayenne TT 2ndary Catbypass Pipes – 27.6

EVOM's Cayenne TT V-Flow - 12HP

= 589.6HP :thankyou:

Is the 589.6hp the ACTUAL dyno number or your guess as to what the crank number would be? Or is it just the number you arrived at by adding up the advertised numbers? You do realize that if you just added up the advertised numbers then you are likely waaaaaaaay off. That's just not how it works. If it was then my Cadillac (supercharger, headers, exhaust, intake and tune) had about 700hp. Post up your dyno when you get a chance. I'm guessing you're only making around 420-440hp at the wheels (assuming about a 20% drivetrain loss).

Also, if you chirped a gear in that 5800lb AWD automatic behemoth then you better look into new tires b/c that shouldn't happen at those power numbers. Anyway, congrats on the mods and enjoy your car!

[gunzie]

As I mentioned before the number are the "crank number's" but I'll be more than happy to post the results when available, I'm curious to know the true numbers myself. Keep in mind Porsche advertise the '08 Cayenne Turbo comes stock at 500HP. I tried to use a GTECH device prior to the modes (didn't use it properly) and got 487HP (stock) with outside temp 93 degrees and forgetting to turn-off the PCM tracking control. I doubt the tyres are an issue; I bought the car new November '07, put winter tyres on until March '08 so the tyres only have 4 to 5 months on them.

Wheels & Tyres: 21 x 10J with 295/35 R 21 tyres

Gross vehicle weight rating (lbs) 6,493, curb weight (lbs) 4,784

Whoo Hoo... there it is! 589.6HP :eek: I was shooting for 540HP but Pit Stop Motorsport (VA) was able to mod the ECU to an additional gain of +50HP, the bypass tubes +27.6HP, and the V-Flow air induction system +12HP. Took her for a test drive and man... what a ride, even chirped a gear. Here’s the setup:

2008 Cayenne Turbo – 500HP

Autothority Performance Software - 50HP

Cayenne TT 2ndary Catbypass Pipes – 27.6

EVOM's Cayenne TT V-Flow - 12HP

= 589.6HP :thankyou:

Is the 589.6hp the ACTUAL dyno number or your guess as to what the crank number would be? Or is it just the number you arrived at by adding up the advertised numbers? You do realize that if you just added up the advertised numbers then you are likely waaaaaaaay off. That's just not how it works. If it was then my Cadillac (supercharger, headers, exhaust, intake and tune) had about 700hp. Post up your dyno when you get a chance. I'm guessing you're only making around 420-440hp at the wheels (assuming about a 20% drivetrain loss).

Also, if you chirped a gear in that 5800lb AWD automatic behemoth then you better look into new tires b/c that shouldn't happen at those power numbers. Anyway, congrats on the mods and enjoy your car!

It's interesting to see the true (guessing that GTECHdevice is a dyno) reported hp's vs the porsche advertised ones (489 vs 500); with most gen1 cayenne turbo engines the difference was even bigger (around 415 vs 450). My '05 reported 412 on the dyno at the tuner; after customized software mod this was 478 (dyno)...I should go in for a new dyno (changed air filter to K&N ones + coil crack problem solved + fresh spark plugs + "good" gasoline (my tuner claims in Belgium shell & jet give a measurable difference) should yield around 500hp..)

cheers, Gunther