Keeping busy

Talk and Tech about turbocharged 924/944/968 cars
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chris white
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Haven't posted in a while, track season has started!
seems I have a little work infront of me
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blueline
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Indeed you do!
Tim
Current:
'26 911 Carrera S - PTS Verde British Racing Green
'24 Cayenne S - Algarve Blue Metallic
'21 718 Cayman GTS - Black
'22 911 Turbo S - Carmine Red
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Darwin
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Do you usually make use of the Link CANLambda?
1984 VW Rabbit Pick-up - Not stock
1988 944 Turbo S - Really not stock (Chris White special)
2012 VW Tiguan - Kinda stock
2013 Cayenne Base - 6 Speed! Tastefully modified, mostly stock

#3

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chris white
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Yes, some good can based gauges are out there. The latest fun is PDMs (Power Distribution Modules). Basically it’s a ECU for central electrics. It can access all data on the ECU and program high and low power outputs. Variable fan speeds based on coolant temps. Fuel pumps programed to prime and to cut off when RPM goes to zero. All with intelligent power management (no fuses, will reset when load goes back under the specified trip point). Turbo coolant pump runs based on different parameters….and new wiring to critical components. Everything is datalogged so you can look at performance (fuel pump draw over time).
Canbus wideband O2 sensors if you don’t have a built in controller
If you want to do weird stuff you could have your headlights go from on to off by slowly dimming them for 5 seconds…but that’s just showing off!

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cda951
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chris white wrote: Fri May 23, 2025 6:07 am Yes, some good can based gauges are out there. The latest fun is PDMs (Power Distribution Modules). Basically it’s a ECU for central electrics. It can access all data on the ECU and program high and low power outputs. Variable fan speeds based on coolant temps. Fuel pumps programed to prime and to cut off when RPM goes to zero. All with intelligent power management (no fuses, will reset when load goes back under the specified trip point). Turbo coolant pump runs based on different parameters….and new wiring to critical components. Everything is datalogged so you can look at performance (fuel pump draw over time).
Canbus wideband O2 sensors if you don’t have a built in controller
If you want to do weird stuff you could have your headlights go from on to off by slowly dimming them for 5 seconds…but that’s just showing off!
I've been impressed by the capabilities of the various PDMs since they came upon the scene a while back. I'd love to play with one, but none of my cars are in dire need of such a thing, and I no longer do much track car prep at my shop . . . . but I'll try to find a use case :) .
Chris A.
---'86 944 Turbo track rat
---'90 944S2 Cab daily/touring car
---'73 BMW 2002tii road rally car
---'81 Alfa Romeo GTV6 GT car/Copart special
---'99 BMW Z3 Coupe daily driver/dog car
---'74 Jensen-Healey roadster
---other stuff

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