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9A1 Gen 2 dyno re-mapping help needed

bazhart

Barcelona
Joined
20 May 2009
Messages
1,343
It's Hartech asking for help on this occasion.

We are almost ready to dyno test and re-map our 4 litre Gen 2 project but have hit a snag running the car on our 2 wheel dyno. We could get on and fit another set of linked rollers but that will take time and meanwhile the project is going to be delayed.

Although earlier 4 wheel drive cars can run with the torque tube disconnected - and later PDK cars have software that can be adjusted to suit - the PDK cars we are likely to modify do not and our diagnostics do not presently provide a suitable function.

This means we either need someone in the UK with a 4 wheel drive rolling road facility (that will rotate the front rollers under auxiliary power in time with the rears) and that can re-map for a dfi engine or some advice on how to run or modify software that enables us to do it on our existing 2 wheel drive dyno.

Anything helpful appreciated.

Thanks,

Baz
_________________
 
Thanks Alex. Unfortunately they do not have a link between the front and rear rollers.

The problem is a control system one. Our car is rear wheel drive but it requires the front rollers to rotate to allow the engine management system to avoid going into limp mode.

We have tried various ways to fool it but it is proving too clever for us.

Later Porsche's have an easier engine management system to deal with and earlier ones are no problem but it seems that rear wheel drive 9A1 Gen 2 first few years production do not incorporate that link.

That is why we think we may have to resort to building a linked set of front rollers but we prefer to find someone who already has that capability and get on with the project.

Any other ideas welcome.

Baz
 
Have you not tried rewiring your front reluctor ring sensors to your rear wheel sensors so they give the same readings?
 
Other option is the M61 at 4am :lol:
 
Hi Baz
Try Pendle Performance in Barnoldswick.
Martin has a brand new 4wheel drive dyno set up and is more than capable of remapping a Porsche he's done a few.
Dave
 
alex yates said:
Have you not tried rewiring your front reluctor ring sensors to your rear wheel sensors so they give the same readings?

This is what we used to do with a PNP wiring loom, a set of rings with the same pattern that magnet'd onto the rear wheel nuts and two OE sensors on arms off the dyno bed...... however as it was a big OEM we probably managed to spend about 1.5M doing that :lol:
 
Failing that find somewhere with a Mustang dyno that is single roll front and rear as they are belt linked or a Superflow AD30 AWD as they are driveshaft linked front to rear. Litchfield have an AD30, 1320 have a Mustang and I think JRM Group still have an AD30 too.
 

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