The front wheel is a Forgeline 18×10.5″ 28mm offset with a 26/65-18 Michelin Pilot Sport Cup racing slick.
The rear wheel is an 18×12″18mm offset Forgeline with a Michelin 31/71-18 Pilot Sport Cup Slick
The completed car is very visually stunning. Wrap Legends did the stunning tennis ball yellow and black wrap.
Dyno Spectrum’s Mitch Mckee did all of the engine tuning including the tricky turbo shaft speed-dependent boost control to safely get the most out of the turbos in the rapidly changing air pressure. You might know Mitch as the guy who coaxed a bunch of power out of our very own Project GT3RS.
On the mountain, the car was a beautiful sight and our team was amazed that the car had even made it to the course!
We were also shocked to see how fast the car was out of the box with no testing and none of the usual new car blues.
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.