Originally Posted by IMA Motorsport

Markar
Just so you all know, The guys at TPC Racing are my Friends of many years. Mike levitas and I have a lot of history. I do not want to turn our products and efforts into a contention. It so happens that we where both working on the stuff from the looks of it at the same time, I might of had the GT3 started before they did. But I will tell you, if somebody came in today for a Cayman kit I would not hesitate in calling them and buying one, and i would guarantee that if they had a need for a twin turbo they would be calling me. So please let's keep this civil.

Originally Posted by IMA Motorsport

Guys for those of you that are curious the way to figure out you power numbers is by taking the current numbers and multiplying them by the amount of manifold pressure you intend to run. So for instance the set that i did on my personal car was .4bar. The way it works, if you run n/a at 1 atmosphere x amount of power 381(in my case) and you add another atmosphere on top of it you should double the power and require double the fuel. That being said you take your existing HP multiply it by 1.4(1 atmosphere + .4 more) and you get your new flywheel hp. Take that result and multiply by .85 and that should yield the wheel power. Lets do my GT3 for instance:

381 * 1.4= 533.4 flywheel HP
533.4 * .85= 453.4 Wheel HP

I consider this number to be reasonable and attainable since we have done it numerous times. Same math different projects same results. The numbers will get you real close to where you will be when done. In reality the dyno is a little bit higher but not by a lot. 3-4 percent has been my experience. Again the numbers get you answer in the ballpark. If you want to know what it will do at .5 bar

381 * 1.5= 571
571 * .85= 485

Hope this helps in answering the hp questions as there are a few different variants in power for the 996 and 997 models. You the dyno in all of my experience does 2 things for me, it corroborates the numbers or shows me that there is a problem. You can tel when there is a problem just by driving the car. The math works!!

Originally Posted by IMA Motorsport

Gentleman,

There has been a lot of interest on turbocharging the 996 and 997 for more power. We had been spending our time on building a kit for the GT3
which is now completed, and in the last few months have decided to move on to the 996 and 997. So, here we are with a nice twin turbo kit using the latest in turbocharger technology and wastegates to boot. The turbos are twin ball bearing Garretts, Tial external wastegates, 6 new injectors, and twin water to air intercoolers that work very well in lowering and maintaining charge temps. We have used our past experience in developing a kit that not only delivers the performance, but is also of high quality in components and workmanship.

You may have seen some pics on boochoock's thread of the kit. A lot of time in the design and engineering of the kit went into making it extremely easy to install so the DIY'er can do this at home in his garage. On the same token it is completely reversable and you can make the car run N/A in a matter of hours. We are very proud of that with the only major changes to the car being two 3" holes cut for charge hose routing, which are in the same location as the stock TT hoses. Two body plugs would cover them up and no one would know the difference. We are very particular about cutting up a car and not being able to reverse the changes, and surely there are quite a few of you out there who feel the same.

Hope that we can contribute in making the cars better and faster so you guys can enjoy them more. Think about it is like a new girlfriend that you need to discover everything about her.