Well,

Video (IA Stage 4 with new K24 headers, EVO WG):
http://www.youtube.com/watch?v=XvQYrBrdn4A

with the EVO WG I felt the necessity to run safe A/F and reliable at any condition, then the EVO IC's was my best option.

Then after the IC’s, I just really liked the how consistent was the power specially really hot days (80-100) and in long highways runs, as well I could see boost under 2,000 rpms.. on simple K24. Result of that, I got convinced that flow is the key, and my goal was to get as early boost as possible could be on K24's to get more power/torque under the curve, which is big part of the 997TT answer to be a very good car 1/4 mile compared with the 996TT. Thus, trying to get 1.2 bar on 6th geat at 3,000 it is a good target.

Last week I installed the 75mm Plenum with TB; it was not easy installs for a weekend warrior like me and I will recommend you that somebody will do it for you. Am I happy with it? Yes, very much, the accelerator just read my thoughts; it is instantaneous and at low end the boost run up came earlier and a bit stronger, which makes the car a delight to overtake on the highway on 6th gear (Video):

http://www.youtube.com/watch?v=UgwWtO0N6To

where I could reach 1.0 bar at 3,000 and I know that installing the 70mm turbo inlet turbo perhaps give me that 1.1-1.2 bar at 3,000 rpms...but is a real pain to install and I will leave it for some future. I am really happy how the car runs now getting the boost momentum mush sooner and more linear going free to meet the red line than before at any conditions. Last, it is also interesting to mention that taking the 997TT has a compression ration of 9.0:1 and the 996TT 9.4:1 where 1.2 bar has a different outcome in those engines.

Video (IA Stage 4 with new K24 headers, EVO WG, EVO IC's, 75mm Plenum with TB):
http://www.youtube.com/watch?v=qOyocBDcDow

I am getting in a few weeks a Performance Box to put some data on the ground.

Best!

 

Wow, that is incredible.

 

1.2/3 Bar at 4k to Redline must be a really nice feeling....

 

Great writeup! How was the install itself - do you have any tips now that you have done it?

 

Thanks, and I do have OEM airbox/paper filter ...

I will get some time this weekend to make a little colage, which should help a lot to all the weekend warroirs

 

Good stuff, I also have the 75 mm TB plus plenum but havent been able to really test it as my clutch is slipping like crazy since I installed it

 

Contigo,

After all my upgrades including EVO (IC's, WG, K-24 Headers) the other day going to Santiango with 2 more people in the car my Stage 1 clutch in 5th start sleeping like crazy....Stephen at IA just sent me a Kevlar clutch, whith will solve this.... good for 700 hp and better transition than the ceramic Stage 3.

 

I am looking for a clutch upgrade also, considering the AWE ST3 (SACHS) option and no sure yet if I also will change to the LWFW (havent found clearly the differences other than weight..)

 

I am using OEM FW...you can see what happend to me (3,000 miles on Stage 1, never Drag/Track), do not upgrade just to a Stage 1 or 2(w/LWFW) for you set up.

In fact the new EVO GT660 kit does uses the Kevlar or Ceramic clutch.

 

I am planing to use either stage 3 or 4, havent considered the stage 2, think it is on the border ...

 

Pierre
What was the actual difference you noticed when moved from OEM ICs to aftermarket?, Worth the money and work?

 

here is some info:

https://www.6speedonline.com/forums/...d.php?t=104305