Question about the new EVO 700, AWE 700, Imagine Auto 700, Promotive 700 and all other tuners. How long can the stock 997 TT internals hold up to this power before going into the internals. I have heard the stock block can take up to 850hp but that does not apply to the internals. I am going to upgrade the turbos for this 700 kit but wanted people to chim in on the durability of using this type of power without modding the internals. I have everything else except the modded turbos so I am very interested in some opinions.

 

i heard the same and i although heard thats the next stage package from evo motor sports will have the stock internals as i heard thats they're very satisfied about how much power it can hold...

 

You and I are in the same situation oceans apart. Steve Kasper at Image Auto told me intially when I bought the 690hp kit that the motor can handle up to 700hp without modding the internals although he said he has successfully been running the 700hp system with the stock motor. I am going to give it some time and if every one running the system is satisfied then I am going to bite the bullit.

 

I saw a turbo Civic with stock internals do ~300 wheel horsepower, and it was all thanks to a healthy dose of C16 fuel. Biggest thing is keeping detonation/knock under control. Im sure the 997 can easily handle 700-800hp with no problems, and do it for a long time.