Porsche 996 Turbo 4.1L build

Porsche 996 Turbo 4.1L build

What is it?

• Here’s an al a carte menu for you to put together your dream 4.1L engine for your Porsche 996 Turbo!
• This list is mostly complete.  Items like valves, chains, ramps, tensioners and other maintenance items are not here, yet.
• We’ll keep updating this to make it as complete as possible, so keep an eye on it!

Why would I want a 4.1L 996 Turbo engine?

• With larger displacement you can produce the same or more power without so much boost.
• This makes the engines more reliable for any given power level.
• The power and torque under the curve is amazing!
• The boost response rivals or bests the factory engines while producing two and three times the original power!
• Even at the lowest boost settings, these engines can already double the output of the original engine.
• Because it’s really cool!

How to use it?

• Increase the quantity of each item to 1
• Increase head and base gaskets to 2
• Click add to cart and go through checkout.
• Wait for your amazing kit to show up!
• If you have local machine shop services available, great!  If not, you’ll be shipping us the case, liner carriers, heads and coolant castings.
• If there’s any options you require that aren’t shown, please shoot us an email or call.

Does this engine require special fuel?

• This engine can run on normal pump fuels.
• For better power and reliability, higher octane fuels are always recommended at elevated power levels.
• For great street power pump+meth is a nice solution since you only consumbe the meth when on boost.  Then when on boost, the meth lowers the intake air temps and raises the octane up similar to MS109.
• For more power you can run MS109 and even better add Meth to MS109!
• For the best, most reliable, cleanest and coolest power, E85 is the ultimate solution here.  And adding Meth to E85 can improve it even more with the cooling effect for year around performance without compromise.     Adding Meth to E85 can use nearly 1/2 or less of the Meth vs. pump fuels + meth since you no longer need to drive the octane up.  E85 has an equivalent octane of approximatly 114, even though it measure around 104 octane.  This is due to the evaporation and cooling effect.

Where can I learn more about Porsches?

• Protomotive’s Youtube Channel of course!