Nice vids like always long... What was your trap in the 1/2 mile that day? That last 991TT at the end was fast, do you know the exact mods?

 

Your videos are the best. Where exactly did you mount your go Pro's on your car and what direction with each facing once mounted?

 

Agree, his videos rock. He is modest though because the white 991 in the first race got the jump and he put buslengths on him haha


@ 00:42 in the video you can see a still shot of how/where he mounts the gopros. Rear window facing forward and front windshield facing rear

 

To remain on topic ...

Yes I'd agree the car is not where I'd like it to be power wise. I'm down approx. 30-40 hp from stage II comparisons which I'm running now on 91 pump gas. What is important is the delta between where I was and where I am currently in the new tune as the dyno data clearly shows. Im confident the numbers will get extremely better and wouldn't be naive to think there is any limitation between having the words Turbo or Turbo S on the back of my bumper.

Will make a few bolt on changes to determine the problem and find what the car likes. Have a suspicion and will go with what is determined from the data logs and dyno. I'll test and change a Part or two next week with a return to the Dyno for tuning.

 

Just curious...do you suspect an OEM part or aftermarket part is the culprit?

Also, did you guys data-log the car during the run with the GIAC software?

 

Logs are leading us to an aftermarket bolt on...

Unfortunately no, did not have the opportunity or ability to data log with GIAC.

 

Thanks for clarifying. What part is it? Why the secrecy? lol

 

There's entirely too much secrecy, non disclosure and things that don't add up in this thread.

I'm checking out.

 

No secrecy, but as with all high level national security investigations, to protect the innocent, we will not reveal data prior to confirmation. LOL

 

Damned if you do, damned if you don't
I'm sure you guys are probably already doing this, but try throwing the OEM DVs in. Should be able to troubleshoot easier with the logs at your fingertips. I hope you get it sorted.

 

Thanks.. After the bolt on swap and testing next week I will confirm and post these results. I hope to post information to confirm the source of my HP loss.

 

By now I have seen thread after thread claiming that GIAC basically makes crap power and 100 lbs ft less torque than Cobb. We will see who makes more power at comparative events.

1. Our October 7th Atco rental day; and

2. Slipstream's Oct 17th roll races at Pocono.

3. The upcoming ShiftSector event in California.


I am in numbers 1 and 2with RedGutz. Hope to see as many Cobb tuned cars as possible.

If the Cobb torque claims are to be believed a stage 2 Cobb tuned car with stock ICs should be as fast or faster than my GIAC Stage 2 plus tune car with Champion ICs. Let's see if some of these amazing Dyno runs are proven in the real world.

Time to GoPro up and record for the Porsche world to see.

 

Understood. Just to be perfectly honest and transparent myself, I'll tell you why I'm asking what part it is. So, clearly you've got a part on the car which is causing issues with performance. Without knowing what part it is, or what type of issues it's causing, the whole thing casts a shadow over your whole thread.

The main premise of this thread was to prove that your newly acquired Cobb software outperformed your previously installed GIAC software in a dyno test. Yet at the same time we're saying that there's a problematic part installed on the car holding it back. So to me, the only thing that we've successfully proven at this point is that the GIAC software is more sensitive to the issues being caused by whatever this mysterious hardware part is. Not to mention the less-then-optimal conditions under which the dyno testing was performed (i.e. lack of rpm signal or data-log during the GIAC run) which technically would make it impossible to plot a TQ curve, yet you have a pretty clearly plotted TQ shown. The whole thing is a bit confusing, to be honest.

 

I hope to be going but something just popped up with my grandson whom we have custody of.

Here is what I was basing my comments on:

 

Webcar,
I raced OP and got him by a car length at this same event, I raced this black PP Perfornance 991 and he got me by a little over a car length I believe he was running meth but can't confirm. I also raced longboarder and he got me by about 3 cars, I also had a passenger on all my runs ( black 991 had passenger as well )I'm hopping to close that gap by a lot at shift sector, with my new tune and IC'