New 2.8 Liter Six for the Racecar, I'll be asking a bunch of Conversion Questions Options

[motorvated]

The first question I have is related to modifications to the engine shelf pieces required for the 6-cylinder conversion. I noticed the Patrick Motorsports sells an expensive engine shelf kit for the 6-cylinder conversion. But, since the 6-cylinder is going into a Racecar, can I just cut out the entire engine shelf to maximize the available space in the engine compartment? Or, has anyone made a template that can be used to modify the 4-cylinder engine shelf to accommodate the 911 engines? I'd like just to remove the shelf parts if they are not needed. Thoughts on this? How do you other racers handle this. Many more questions to follow. I know there are many conversion threads out there, but it's hard to weed through them to see if they address the question(s) that I have. Plus most of Tigre are for street car conversions, not race cars.

Mike S.

[brant]

I run a 901 instead of the 915

I ran my trans cooler with three different ducting (intake air) set ups all measured with a trans oil temp gauge

The small electric fan out performed 2 different ram air set ups.

Air flow under the rear trunk is restricted the lower the car is
We put our trans cooler into the rear trunk

I would want to actually measure the effectiveness of any set up

Oiil coolers are all about intake and exits
That’s why radiators are shrouded on production cars
I ran the same front cooler on my old race car with 3 different exit designs and lowered the oil temp15 degrees each time I improved the exit

You may benefit from copying effective race set ups of others
Look at the fastest set ups. Frank beck for example

there is a lot of ambient temp under the trunk... those exhaust headers are really hot and heating the whole area... heat tends to get trapped in that area too....