M4 GTS in Sport Auto Supertest Nur 19 Aug (now we can guess laptime)

[Captain Unknown GT4]

Ok, guys lets guess the M4 GTS laptime. BMW factory driver did 7.27.88.

What will Christian G from sport auto do in GTS when he drive the same lap?

He is a fast driver, he was One of 3 drivers wining this 24H in manthey Porsche gt4 clubsport. Class winner, not bad. Next to consider is that the track is faster now then it was when BMW drive GTS, not much but still faster( due to new constuction of flugplatz)

So lets guess time then...
In aug whe know the real time!

[OutlawX3M]

7:22.8

[te37]

7:20.4

[KKSigs]

7:21.63

[VCP]

7:24.5

[bd307]

What were the weather like when they were running these laps?

[VCP]

Do you mean the 7:27.88? The weather was good. The track was not closed off, and Jorg only had 1 lap to do this carrying 40kilos of test equip in trunk. No tweaking of aero or suspension. They just set to the preset track settings and went for it. Cold tires for first few corners. I know Christian will better the time. GT3 RS 4.0 is going down

Originally Posted by bd307

What were the weather like when they were running these laps?

[Captain Unknown GT4]

In general from the past when Horst von Sarma did the laps he was always slower then the factory driver. As I recal in the Porsche carrera GT he was only a few seconds slower. (Ca. 3 sec, dont remember)

I guess Christian G is overal a faster driver than Horst. My guess is Christian will be 2-3 seconds slower than factory driver. Time will tell

[M4_GTS]

Originally Posted by VCP

Do you mean the 7:27.88? The weather was good. The track was not closed off, and Jorg only had 1 lap to do this carrying 40kilos of test equip in trunk. No tweaking of aero or suspension. They just set to the preset track settings and went for it. Cold tires for first few corners. I know Christian will better the time. GT3 RS 4.0 is going down

actually, the track was closed off for them. aero parts was set at "track" setting and suspension was set at the street setting.

[VCP]

That is what I said. When you have adjustable suspension/aero you can dial it in as needed. They did not do this for the run.

Originally Posted by M4_GTS

actually, the track was closed off for them. aero parts was set at "track" setting and suspension was set at the street setting.

[CanAutM3]

Originally Posted by VCP

That is what I said. When you have adjustable suspension/aero you can dial it in as needed. They did not do this for the run.

I think M4_GTS simply wanted to point out that the suspension was set at the "street" setting and not the the "track" setting as your post implied.

It has to be pointed out that, IIRC, the "street" setting has been tuned and optimized on the 'ring, hence it did not need any additional "dialing".

[VCP]

ok. You are aware of the amount of possible setting combinations with Height, H & L speed comp and rebound then.

Originally Posted by CanAutM3

I think M4_GTS simply wanted to point out that the suspension was set at the "street" setting and not the the "track" setting as your post implied.

It has to be pointed out that, IIRC, the "street" setting has been tuned and optimized on the 'ring, hence it did not need any additional "dialing".

[Pyr4t]

Jörg Weidinger (BMW) did a very good 7:28, although car was equipped with heavy measurement computers. I expect Gebhardt (SportAuto) to do a 7:36. I don't think he can meet Weidinger's time.

[M4_GTS]

I am thinking 7.32

[CanAutM3]

Originally Posted by VCP

ok. You are aware of the amount of possible setting combinations with Height, H & L speed comp and rebound then.

You probably know way more about the GTS than I do, but IIRC, it all adds up to thousands of possibilities. It still does not change the fact that the "street" setup was tuned on/for the Nürburgring by BMW .

I also agree that one could fine tune the settings further to ones specific liking, but without a full complement of data recordings, it could become a seriouly tedious and lengthy task.

[BMW M3 CRT]

Tomorrow the new SPORTAUTO is in the shops and guessing could be ended.
http://www.auto-motor-und-sport.de/n...6-1441164.html

[Phatcat]

The e-version is out, sorry to disappoint, the time is..........7:37. Pyr4t was the closest!

I am not surprised actually, factory drivers have countless of laps on the car and also can tinker with the car to get best time (despite whatever they claim), SA doesn't. I have never seen magazine tests (whether with race car drivers or not) beat a factory time.

[CanAutM3]

Originally Posted by Phatcat

The e-version is out, sorry to disappoint, the time is..........7:37. Pyr4t was the closest!

I am not surprised actually, factory drivers have countless of laps on the car and also can tinker with the car to get best time (despite whatever they claim), SA doesn't. I have never seen magazine tests (whether with race car drivers or not) beat a factory time.

Thanks for sharing.

They do say that the 30degC weather probably hurt the lap time. The 5 liter water tank for the water injection got almost emptied in just 2 laps .

Anyhow, 15 seconds is in the same improvement ballpark as the E92 GTS had over the base E92.

M3 8:05 -> M3 GTS 7:49 (-16 seconds)
M4 7:52 -> M4 GTS 7:37 (-15 seconds)

My take away though is that the Carrera S is mightily impressive considering it is on regular street tires

[Phatcat]

Originally Posted by CanAutM3

Thanks for sharing.

They do say that the 30degC weather probably hurt the lap time. The 5 liter water tank for the water injection got almost emptied in just 2 laps .

Anyhow, 15 seconds is in the same improvement ballpark as the E92 GTS had over the base E92.

M3 8:05 -> M3 GTS 7:49 (-16 seconds)
M4 7:42 -> M4 GTS 7:37 (-15 seconds)

My take away though is that the Carrera S is mightily impressive considering it is on regular street tires

Yeah, based on these results, the Carrera S is pretty impressive.

[Draper]

Originally Posted by CanAutM3

Thanks for sharing.

They do say that the 30degC weather probably hurt the lap time. The 5 liter water tank for the water injection got almost emptied in just 2 laps .

Anyhow, 15 seconds is in the same improvement ballpark as the E92 GTS had over the base E92.

M3 8:05 -> M3 GTS 7:49 (-16 seconds)
M4 7:42 -> M4 GTS 7:37 (-15 seconds)

My take away though is that the Carrera S is mightily impressive considering it is on regular street tires

Numbers should be

M4 7:52 -> M4 GTS 7:27 (-25 seconds)

No?

[CanAutM3]

Originally Posted by Draper

Numbers should be

M4 7:52 -> M4 GTS 7:27 (-25 seconds)

No?

What did I read wrong?

[Draper]

Originally Posted by CanAutM3

What did I read wrong?

Is this a valid time?

Originally Posted by Captain Unknown GT4

Ok, guys lets guess the M4 GTS laptime. BMW factory driver did 7.27.88.