All the artilces say the 997TT makes 480 ft lbs of torque from 2000 rpm up. It doesn't feel like anything close to this for me. I have had cars with larger motors, normally aspirated, that feel much stronger at low rpms. How do they get 480 ft lbs? At this rpm there is a lot of lag. Do they floor it with the brakes on to build boost? Enen then I don't think the engine will go to full boost at low rpm.

Don't beat up on me guys, I love this car. But it doesn't have the low rpm torque I expected.

 

480 TQ @2000rpm is a load of crap. See my GIAC flash dyno on this thread.

https://www.6speedonline.com/forums/...ad.php?t=68380

 

Tony007, thanks, I knew the torque was not that high. I actually ordered the car when I saw the 480 @ 2000 in the car reviews. When I first drove the car I was disappointed because it wasn't there. I'm surprised there are not a lot more complaints about this.

But its still a great car, just does not feel like a muscle car.

 

I know what you mean. Actually, the computer looks at how fast and violently you mash the gas pedal and will only reach the highest boost level when you let off completely and then rapidly smash the pedal.

I would not be happy with this car if it were not for companies like EVO & Protomotive. It wakes this car up in a very big way.

Have you thought about getting any mods done to your TT?

 

Tony007, yes I have thought about mods. We have a corvette that is heavily moded which we take to the track. It runs great but lots of problems and service. Also had a moded CTS-V and again lots of shop work.

This is my first Porsche and I would really like to improve the low end performance. The Porsche dealer here said even with an aftermarket exhaust it may not be coverec by warrenty. This car is pricy for me and the lack of a warrenty is scary to me.

Do you know the Porsche party line on mods? Do small changes cause them to walk away?

 

My first Porsche too. The exhaust should not pose a problem with warranty.

The ECU flash is another story. If there is a major failure Porsche may request ECU data to be sent to them. They will know that the ECU was flashed and will most likely deny the claim. The Porsche engines are, for the most part, as trouble free as engines go. Odds are very strong you will never encounter a problem. But there is always a small chance..

When contemplating my options for ECU I considered all the major industry players. Here's the way I looked at it. The GIAC flash is set to free up ALOT of HP and TQ but is VERY conservative with respect to boost, air fuel ratio and timing. Additionally, the GIAC guys and all the industry beta testers put loads of miles ensuring a safe and powerful product.

I ran 17 back to back pulls on the dyno never shutting the car off and there was no evidence of power loss due to heat soak with rising EGT's, and the ECU was not pulling timing or adding fuel.

 

I dont know if Porsche has made a "sports" exhaust for the car in their tequipment line...but if they do, I know that is 100% under warrentee...

BUT



Even if you go with an aftermarket system, the Magnuson-Moss Warrentee act dictates that in order for something to not be fixed under warrentee, the dealership MUST prove that the part you added on is the cause...and I have not heard of an exhaust (from a reputable company) that has done this...so go with some company like promotive, awe etc and youll be fine.


As for the chip...IF you do it, like Tony said...go for one that DOESNT mess with boost much as thats where problems COULD originate and be potentially very costly. I think GIAC is a pretty safe company in that they offer pretty nice gains with little risk of money drenching problems.

 

Most people tend to find a "mod-friendly" dealer in their area. If you just go to various service departments and speak to the service writer and bring up after market parts just see how they react.

 

from the few postings of boost curves I have seen, the torque "plateau" starting at 2k rpms is pure myth. There is no way for that to be achieved when the boost curves roll on and off without looking like a sine wave.

 

if you fully open the throttle at idle with a heavy load (ie, let the boost build or brake boost), do you think by the time it hits 2000 rpm it can achieve the stated torque?

 

No. I have tried in 4th, 5th, 6th gears. The boost won't hit until about 3k. Very different than the manufacturer's claim

 

I don't think I've ever seen the boost going over 1 bar, if it got that high. I'm going to see if I can get it higher with another person watching the guage.

 

eclou, that's what I found, the boost never builds very much with the brakes on. Maybe its programmed that way.

How did Porsche get away with this? And why did all the magazines not metion this?

 

Bump!

 

Why are we bringing this thread up after 23 months?