I think your car should be a bit faster, i have same modds my car is a convertible which is heavier and can run 100-200 under 6 sec on temps like that. I run from flat 6 to 6,2 with 33 degreec outside temp at the night and above 85% humitidy.

I was thinking of reasons that skandalis car is that fast with only a tune.

-Very lightweigtht wheels (dymags) they help a little
-High octane fuel (100 oct pump fuel)
-ECU upgrade
-High flow intake system

I was also thinking if there could be a problem with the PBOX

Skandalis the best you could do to solve the mistery is to dyno the car.

I'm just trying to use logic and get a solid reason.

So many tuners out there build and modify Porsches for ages, i don't think there is something that they don't know about ECU tunning.

Is there any other member or vendor that has any data related to this sofware?

Skandalis can you please post a video with your car accelerating from 0-200 and 0-400m?

I would love to see a video of your car, it would be even better if you could run next to another car.

Tonight i'm racing a highlly modified Nissan GTR R34, i'll post a video. ( i hope he doesn't walk me)

 

Guys i really dont have anything to prove to anybody...Milou you re just one hour flight...Come over here to have a ride...We will jack the car to see my turbos and everyhting else...I ordered ICs but i will have them in about 2-3 weeks...Also madsex 343 had a time 6,0 100-200 with just APR flash in a 6speed...so it is normal to have 5,5 with exhaust,intake and dymags...Some people like it some others dont...Milous car is very fast and it might be infront of me,because it is well tuned as a modified VTG car...It is faster than most modified VTGcars...We all have to understand this is good,not bad...I will dyno the car when ICs arrive and weather cools down...The only video i have is the following...
http://www.youtube.com/watch?v=xPMWCqMls7A

P.S. I wont continue discussion with speed21...I never said anyhting wrong about him or his car so I would please him to do the same and focus on this 100-200 thread.Its obvious he dislikes my car and my times...

 

Skandalis,
thank you for the video, your car is fast. On my next visit to Athens i'll contact you, it would be nice to see your car and speak from up close.Same goes for you, i'f you are comming to Cyprus let me know
I'm not being skeptical, i'm more amazed with the resaults of your car.

 

I believe there should be something WRONG in your engine or tune...Your car should be much more faster...100-200 6,7 with modded VTGs is not good...
Also have in mind APR does not have a tune for modified VTGs...they only tune stock vtgs...but are more than welcome to visit me and remove my turbos to examine them...There is nothing in my engine i do not know...Yesterday i raced a k24/18g car producing 680hp...and guess what...we were side by side until 230km...It is madsex old car with a verified time 6,48 60-130 same as mine...and the cars were the same until 230km...above these km the 996 was faster...

 

Yes...
I know my car is not at its top cause of the heat soaking of the Ic's due to the big VTG's and 1.2B boost, so I hope the IC's gain will be huge!
But even like that I'm not sure reproducing your times!
'will try and tell you when Ic's will be bolted...

 

ICs should play a significant role in hot climates...at 1st run the car is amazing...at second very fast and at third just fast...hot climate kills performance at repeated pulls with stock ICs...

 

Skand,

I hope you're not driving and shooting that video at the same time and at 211KPH!

Stay safe man!

 

Have you datalogged IATs to confirm this?

"Bigger" turbos = more flow = less backpressure = less heat.

It is very very doubtful that a 100-200 km/h run will soak your ICs to the point where Motronics retards performance.

 

I consider it disrespectful when a fellow member on this board has repeatedly shared data, posted dbn files, created videos of his runs, yet is continuously badgered about legitimacy...especially when there is no evidence to the contrary.

 

Hi BBYWU,

You are right, I think I'm heat soaking when pulling 4th, and 5th, and 6th, but not with only 3rd + 4th during 7'...
So, why is it so slow? not enough boost? (1.2B)
I did not datalog the IAT, but feel a real difference between under 20°C and 25°C weather air.
And as said Skand, the first pull is 6.8', the 2nd 7.1', the 3rd 7.2' or more...
Are my PZero Corsa a "brake" too? (that's written on the 997TT owner's manual)
My 993TT gives the same perfs with 560hp/820Nm! (and 100kg less measured)

Cheers

 

Hello,
after testing many tunes and for many miles and after tweaking and re-tweaking I can tell you with certainty a few things agbout 100-200km/h testing.

First of all 8-8.5 for a bone stock manual car with euro 100oct fuel under warm (not hot) climate conditions is about right (depending on the conditions and driver ofcourse).
With a simple exhaust with cats I saw an improvement of about 0.5secs to that time but it was not consistent.
Skandalis is right on the 6sec 100-200km/h with the APR tune I saw a November night with around 10C temps and many 6.2-6.5 runs all day long after that...
However I have seen sub 7 sec with other tunes as well and 6.2 and 6.3 runs as well...

Now after having cleared all this I must note here that most of the times I did decicated 100-200km/h (or 60-130mph) runs, which means I simply put the car in 3rd gear from donw low and let it biuld boost slowly up to 60km/h and nailed it so I had full boost by 100km/h and only make 1 very fast shift (this plays a huge roll as well) to 4th gear... To understand better, I have found that the difference between starting in 2nd gear and go though 2 shifts to reach 200 compared to only 1 shift is around 0.5-0.6sec which is not negligeable in our discussion... Also heat soaking plays a very big role for ahieving the best time and thus you have to get it right the first time if possible...

To conclude having owned and tested 2 996/7 cars - with the 996 going through all the stages from stock to chipped/to K24/to K24/18g's- I can tell you that sub 7 sec 100-200km/h takes around 580-620 HP to achieve depending on the power and torque curves and the conditions of each run... To go low or under 6secs take a bit more perhaps but that again depends on many factors... Now a good 997 tune/exhaust combo is believed to produce around 600HP (I am always talking crank HP) maybe a bit less or a bit more! So your 633 HP should be good for at least sub 6.5 sec 100-200 - make more runs / perhaps you are missing something... or perhaps your car does not make 633 at all... I think you will find the end of the tunnel if you look a bit better...

On a sidenote the 7.18 (60-130mph)sec/6.2sec 100-200km/h verified time here was done with a local tuner flash and a 200cats exhaust with 1 shift and with 12C ambient temps, using premium 100oct pump gas (eguals to 95 USA)!
My 5.5 (100-200km/h)sec verified time with my 996 K24/18g was also done with same conditions... I believe that my 997 was around 600HP at the time and my 996 was around 650HP but with a bit more lag down low compared to the VTG!

Hope I shed some light here

 

++++++++++++1

 

Thx for your analysis, and I'm Ok sub 7' needs 600hp...
That's also right my car is not sure at 633hp on the road cause the day we dynoed it, ambient temp was 35°C and we had to wait a long time cooling (half hour) and shot once 4th gear to obtain it... second shot more than 30hp lost!
That's why I hope a lot with the Ic's! Approaching 6' why not?

PS, we run 98 french pump fuel.

Cheers,
Pascal

 

Pascal,
considering your car is ok (all hoses in place,no air leakage,etc) start it up at night and drive just to warm it up...then do one pull from 3rd gear and low revs with one very fast shift to 4th...log this run and let us know of the results...

 

I'm going to...