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We had a 2007 987.1 S client come in after experiencing oil starvation during a track event which led to engine failure. Since the owner of the car knew that there was engine failure, he wanted to put down a few ideas of how to rebuild and have us deliver him a car that would give GT3's a hard time at the track. We offered our TPC Racing 3.7L build and Stage 2 turbo kit to do the job. After an engine tear down, we found that the heads could be salvaged, but the short block had too much internal damage to build. That is when we came to the next option. We ordered a new short block from Porsche, machined the heads and touched up the valves like we would for our TPC Racing Blitzkrieg engine to start this build and mate our TPC Racing Stage 2 Turbo Kit for additional power.
Below are photos of the build and we will keep updating this thread with photos and updates as we complete the build. Another GT3 Killer will be born!
Could you help me to understand what the oil starvation caused to fail in the engine? I thought that most Porsche engines could be resleeved. Is this not the case with this engine or was something damaged that prevented this? In the new bottom end, did you use stock pistons and rods? Also, what will the HP targets be on this engine since it needs to be track safe?
Could you help me to understand what the oil starvation caused to fail in the engine? I thought that most Porsche engines could be resleeved. Is this not the case with this engine or was something damaged that prevented this? In the new bottom end, did you use stock pistons and rods? Also, what will the HP targets be on this engine since it needs to be track safe?
We recommend with a stock or modified 987 that a deep sump oil pan be added to avoid oil starvation. We have an oil pan from LN Engineering that we like to use and it works great for our track clients. On this car, we are also adding a 3.8L oil cooler to help with cooling. If this car had the deep sump oil pan and the 3.8L oil cooler while it was being used as a track car, we believe the factory engine would have held up.
In regards to the bottom end, we are using the factory pistons and rods. We purchased the bottom end complete from Porsche. Typically if the bottom end can be salvaged, we do sleeve the engine and go with our 3.7L build with different pistons and rods, but unfortunately the original could not be salvaged. For HP, since this is a factory bottom end with our Stage 2 Turbo Kit, we typically see 410 to 420whp using about 4 to 6psi. Relatively low manifold pressure which will make the car reliable for track use like we have seen with our turbo clients that have over 100k street/track miles on their Cayman's.
We recommend with a stock or modified 987 that a deep sump oil pan be added to avoid oil starvation. We have an oil pan from LN Engineering that we like to use and it works great for our track clients. On this car, we are also adding a 3.8L oil cooler to help with cooling. If this car had the deep sump oil pan and the 3.8L oil cooler while it was being used as a track car, we believe the factory engine would have held up.
In regards to the bottom end, we are using the factory pistons and rods. We purchased the bottom end complete from Porsche. Typically if the bottom end can be salvaged, we do sleeve the engine and go with our 3.7L build with different pistons and rods, but unfortunately the original could not be salvaged. For HP, since this is a factory bottom end with our Stage 2 Turbo Kit, we typically see 410 to 420whp using about 4 to 6psi. Relatively low manifold pressure which will make the car reliable for track use like we have seen with our turbo clients that have over 100k street/track miles on their Cayman's.
That is fantastic! Thanks for the quick response. >400whp on the track should be an absolute beast.
We recommend with a stock or modified 987 that a deep sump oil pan be added to avoid oil starvation. We have an oil pan from LN Engineering that we like to use and it works great for our track clients. On this car, we are also adding a 3.8L oil cooler to help with cooling. If this car had the deep sump oil pan and the 3.8L oil cooler while it was being used as a track car, we believe the factory engine would have held up.
Does the deep oil pan have internal baffling to slow down lateral oil movement? How much ground clearance is lost? Danke!
Does the deep oil pan have internal baffling to slow down lateral oil movement? How much ground clearance is lost? Danke!
Yes, the 2 quart pan that we use has a very advanced baffling system in it to slow down the lateral oil movement. In regards to ground clearance, you will not see much loss as it is not lower than the sway bar. I will take more photos that show the oil pan on once the turbo kit is mounted later today.
The engine is dressed and installed! For safety, we added the LN Engineering 2 quart deep sump oil pan. As mentioned in my post above, this has an advanced baffling system that will slow down oil movement under lateral load. We recommend this oil pan to all of our 987 clients that will be seeing the track. Also, the turbo kit has been installed. We are going to put some street miles on the car and then it will see the dyno. It is running great!
