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PostPosted: Sun Sep 24, 2017 5:11 pm 
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Just because the calibration in a Cup can’t be adjusted doesn’t mean that’s the case for all the other sequential’s being run by non-Porsche race cars. Or even Porsche’s with aftermarket ecu’s. I think for there to be a rule change would require data from multiple sequential cars, not just Cups. Maybe present data from manual E46 M3’s compared to E46’s with Samsonas and Drenth sequential’s?


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PostPosted: Mon Sep 25, 2017 7:39 am 
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911.racer wrote:
mjmccoy wrote:
If you have a sequential that is slower to shift than a conventional h pattern, then you have a calibration problem.


FYI,

Factory set. No calibration or adjustment

https://rennlist.com/forums/porsche-cup ... 997-a.html

How does that make it not a calibration issue?

We want to make this change for what purpose? Based on data of one car? (Probably compared to a dog box which gets the same penalty and not to a standard box.)

Also, still a calibration issue. And with an easy fix that could include a good bump in total performance.... and without moving where it would be in GTS to boot...

http://www.bosch-motorsport.de/content/ ... 46411.html

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PostPosted: Mon Sep 25, 2017 8:30 am 
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mjmccoy wrote:
911.racer wrote:
mjmccoy wrote:
If you have a sequential that is slower to shift than a conventional h pattern, then you have a calibration problem.


FYI,

Factory set. No calibration or adjustment

https://rennlist.com/forums/porsche-cup ... 997-a.html

How does that make it not a calibration issue?

We want to make this change for what purpose? Based on data of one car? (Probably compared to a dog box which gets the same penalty and not to a standard box.)

Also, still a calibration issue. And with an easy fix that could include a good bump in total performance.... and without moving where it would be in GTS to boot...

http://www.bosch-motorsport.de/content/ ... 46411.html



This will be my last post to this thread. You are making an assumption that it is out of adjustment. Why would Porsche make a fuel cut too long on a dedicated race car. And, even if I were to spend $7k and the tuning cost to buy the aftermarket box that it would do a lick of good. (or potentially blow up the transmission because of lack of cut)

The fuel cut is there for a purpose.

You have not provided me any data to show that normally a cup car would not have a drop in performance from shifts.

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PostPosted: Mon Sep 25, 2017 9:29 am 
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Let me simplify.

Fact 1. If you do not have a torque reduction, you will not cleanly get it out of gear with a dog box. (H pattern or sequential).

Fact 2. If you can do it as fast or faster with your feet and hand with an h pattern and no ecu assistance, there is something massively wrong with the calibration. (Or, to un-bunch your panties, it is completely correct and working as intended, there just happens to be massive room for improvement.)


Typically you have enough access to enable burst logging on shifts. I suggest posting that log or email it to me. Or if you don't like me, there are plenty of other qualified race engineers with calibration experience to whom I can refer you.

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