You can see the huge C&R intercooler back here and the large Verus Engineering wing.
The Verus Engineering swan-neck rear wing is CFD designed and WindTunnel tested. The mounts for the wing were designed and CNC machined by BBi. It is solely responsible for the car’s rear downforce. No other aero trickery here. The large scoop feeds are to the intercooler.
The BBi front splitter is pared with the factory GT3R front diffuser and seems to work well. The car has slightly too much rear downforce and not enough front at the moment. The car will be developed more in the near future to have centrally located heat exchangers with a duct and a big center of the hood exit. The side openings will be closed up. This will reduce drag and make much more front downforce since the front splitter will become much more effective at capturing stagnation pressure without the two huge air leaks for the front side radiators!
The GT3R canards act as effective vortex generators more than downforce creating devices. This helps prevent air from curling under the car.
You can see the small GT3R front diffusers here.
These two side openings admit air for the side-mounted radiators. The bad things is these radiators pressurize the wheel wells and leak downforce creating stagnation pressure into the wheel wells where it can contribute to front lift.
14 comments
The power steering pump is actually a generic TRW item.
No need to buy the $$$ Porsche Motorsport item if You wish to adapt it in any other car.
I know, I have installed a few.
Opel/Vauxhall part no 93179569.
Good to know, does it look to be the exact same part?
Looks to be, yes.
Works great, basically needs two wires to run.
OEM Numbers: 5948009, 5948001, 5948127, 5948128, 93188235, 93188236, 13105726, 24436412.
TRW part no: JER100 or JER108 (difference is in connectors, which are anyway useless for a custom install)
Thank you!
Twist is right about that one. Also used on most rally cars, and can be used on just about anything really. They are abundant over here in Europe.
This is GREAT info. I remember the Pro Awesome guys were telling us about an alternative part number for the Porsche Motorsports pump that they used on their Evo and was a fraction of the cost. Thank you for sharing the part numbers!!!
Keep in mind that the pressure hose needs to have an O-ring at the end of it.
I have used the original fitting from the Opel pipe, because those are max 5€ at the wrecking yard and readily available.
It seem that Speedflow 741-06, Earls 961955ERL or 991955ERL will also fit.
I wouldn’t recommend trying to seal it with just a washer.
Is the sensor on the brake cooling duct a map sensor? What is the data used for?
I think its a temperature sensor
Was wondering the exact same thing.
they should go to superlap cota next year
Great article! So much info!
Is there any inherent limitation in using a strut front suspension or can you still get good performance from it? I guess that it performs just fine if Porsche has stuck with it all these years, but strut = economy to me.
The biggest problem is the lack of negative camber gain under compression so it is possible to gain positive camber under roll. However, there are a lot of high-end performance cars that have strut front suspension. It is interesting to note that the 911 GT3RSR has unequal length a-arms in the front now.