Mike/A.W.E.

Hello,

On Friday October 10th a 997 GT2 was handed to us by a gracious customer looking for added performance. In this thread we will document a comprehensive case study. Our mission is to further prove that nobody takes product development as serious as we do.

As I am sure many of you know, the headers and intercoolers are the same as the standard 997TT. Incremental testing of our A.W.E. replacement components (headers, mufflers, intercoolers) will be done on our Mustang Chassis Dynamometer to show what further gains can be had.

Here is the car as it was delivered to us on Friday.







Currently the car is on they dyno for baseline testing. We use a variety of scan tools for data collection:

Porsche PIWIS Tester
Durametric
Custom G.I.A.C. scan tool

Data points reviewed:

Ignition Timing
Injector Duty Cycle
Boost Pressure
Knock Activity
Air/Fuel
Exhaust Gas Temp.
Intake Air Temp.
Vane Regulation
Mass Air Flow - Grams Per Second
Fuel Pump Duty Cycle
Fuel Pressure
Throttle Position




We hope you enjoy this thread. If you have any questions, please ask. We will update as often as possible.

-VIDEO COMING SHORTLY-

fc-racer

Red GT2's look so hot, surprised that more people don't order them in red.

pmf

Thank you, Mike
This thread will be very interesting, please keep posting

I'm doing something similar on my GT2 (I'm on the other side of the Ocean, anyway!)
Upgrade of my car should be finished in a couple of weeks
Will be great to see step-by-step progresses of your project

Cheers,
pmf

TB993tt

I will be budgeting around $35K for 997 GT2 engine upgrades at some point in the next year, mind is still open so will be watching with interest....

Mike/A.W.E.

Great! I will be updating this thread shortly.

Are you looking to open the motor or stick to bolt on parts?

TB993tt

engine dyno ~775NM+(570lb/ft) has been causing bent rods on the 997tts so it will be opened for Carillos... AFAIK this and a 800+NM clutch is the only non bolt on stuff required ?

Mike/A.W.E.

Here are a few more photos. We have compiled some very interesting data which we will be posting shortly.

So after we did our baseline dyno runs, we rolled her onto the prototype list for a futher look.




We began taking things apart and seeing what we can improve.





We fitted one of our standard 997TT mufflers to see what a proper exhaust will make on the new GT2. We then did more dyno pulls.






Stay tuned....

Mike/A.W.E.

Wait until you feel the clutch pedal on this car.

At engagement there is no chatter or shudder, but it sure is tough to push down!

TB993tt

aw....don't say that, this is supposed to be a daily (traffic) driver

Can you tell from initial look how difficult it would be to retrofit 997tt hydraulic actuation or is it completely different ?

Mike/A.W.E.

Oopps, sorry.

We have yet to glance at any of the trans components....

Tell your tailor that your suits are going to need alteration. Your one leg is bound to get bigger.

Mike/A.W.E.

Here are some data sheets.


Boost Curves



EGT



Intake Air Temp



Regarding IATs:

We are measuring via the OBD sensor which is in the intake pipe on both cars. Therefore, we are unable to measure the true temp right before the intake valves on the GT2 where the expansion chamber is. However, look how hot much hotter the IATs are compared to our 700S kit! There better be a lot of temp drop going on in that expansion chamber to make up for the high IATs! Hmmm....

TB993tt

Great stuff Mike, keep it coming

Can you clarify that the "700S" data is from a 997tt which you have tested on a different day ?
If this is the case then what were the relative ambient temperatures for the test as the IAT graph shows the "700S" at a much lower starting point ~87F vs 100F

Can you explain exactly how you do the IAT test on the chassis dyno ? I can see a fan either side which blows ambient air into the sealed I/C chamber in the reverse direction (does this make any difference versus air coming the correct designed direction ?) do you let the car idle for a period of time to stabilise the IAT and get that base starting IAT number (ie 87 v 100F)

TIA

eclou

Toby, I finally gave in and drove my friend's Gt2 at a recent 60-130 event. I am certain you will love the Gt2. Very impressive power deliver even in stock form, and the suspension is fantastic

lone wolf

keep the info coming boys...gt2 is king.

Mike/A.W.E.

Yes, these dyno runs were run on different days.

Ambient temperature for both was ~80 degrees. This is always documented. Multiple runs are done with adequate cool down time necessary to return to a steady state condition and to obtain consistent results. The average of the runs are taken for comparison. That higher start point you see is because the stock IC's heat soak more then ours.

IC's can have air blowing at them in either direction for testing, and yes, we do allow time for temps to become stabile.

Please also see here for more IC testing info:
http://awe-tuning.com/pages/info/con...cfm?content=63

Hope this helps...