what is the power target for this project?

 

We had a chance to poke around under a GT2RS for a bit a few weeks ago, and the turbos are certainly not the same. From the outside, they look a lot more like 997.2 turbos then standard GT2's. There's definitely some differences but I'm not exactly sure what....

For this build, our goal is between 850 and 900 rwhp, again....WITH the 68mm VTG's.

 

can't wait to see what comes out

 

I hate to be a bummer but isn't that the A2 tunnel in Charlotte? If so, I really don't think it's of much aero use to you. FWIW I'm an motorsport aerodynamicist by trade. That's really not an appropriate tunnel IMO . . .

 

..................and Torque? What is expected with C16?

 

woow killer project .. hope the best for you

did you have complete kit for rebuilding 997tt engine ?? not 3.8 engine , but just better pistons better rods .. etc !!!! could hold for 2 bar maybe !!!!


thanks

 

OK guys...here's a couple updates. Let's start with the rebuilt heads. There were a few modifications done to the stock heads for this build. For starters we used the well-proven Ferrea valvetrain package, which includes valve springs, keepers, titanium retainers, and for our build we chose the +2mm intake and exhaust valve upgrade. To match the +2mm valves with the head, it was necessary to upgrade the valve guides and seats as well. Finally, a full port/polish was done. This valvetrain package is rated for up to 9200rpm, but for this particular build we'll most likely hold steady at around 8000rpm. We'll know some more details about that once we get to the tuning stage.

Intake side



Exhaust side:

 

Nice work!! Those heads look awesome!

 

Great .. Hope u reach your target

 

Thanks...I think we will.

BTW..I just noticed your post above. We do have a kit to upgrade the standard 3.6 as well. PM me if you want, and I'll send you some prices.

 

not bad at all how about cams?

 

Great build. If your planning to hit 8000 rpms, what is going to be your solution for the lifters? I am aware that this is a weak link at those high revs.

 

+++1

 

Looks sweet Tom

 

The plan right now is to stick with the stock cams. We like the shape of the power curve they're producing so far with the 68mm VTG's so we'd like to see how far we can take that. Also...keep in mind, our power target isn't over 1000hp, so the stock cam profile should be adequate.

We think that at 8000 rpm's the stock lifters will be just fine. Remember, this car won't see rpm's that high for prolonged periods of time like a race car would. Besides, the 8000 rpm target was just a preliminary number. We're going to rev to wherever we make peak power. That may be 8000, it maybe 7700, or less....we won't really know until tuning starts. But we won't go beyond 8000.