BBI Project: B1R Under Construction 8.5k redline/1000hp
996 Turbo / GT2Turbo discussion on previous model 2000-2004 Porsche 911 Twin Turbo and 911 GT2. Sponsored By Vivid Racing
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__________________ Previously posted as "NineNineSixTT"
b | b | i autosport 17141 Palmdale St. Huntington Beach, CA 92647 Office - (714) 843-0200 To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
That was a major tease Thomas.....seems like you have found your place at BBI, GL!!
Maybe I can get a bro deal for my future pcar....
Long time no se Karl, how are things? How's the S4 running?
__________________ Previously posted as "NineNineSixTT"
b | b | i autosport 17141 Palmdale St. Huntington Beach, CA 92647 Office - (714) 843-0200 To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
__________________
Founder and National Advocate
Porsche Club Of America 911 Turbo Registry To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
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Doing good bro, just busy with work and family. The S4 was running good till the headgasket blew. You ever gonna give me an update on your car??
Oh NO.... Got to get her back running again.
__________________
Founder and National Advocate
Porsche Club Of America 911 Turbo Registry To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
The build list states GT3 Cup heads with Cup Valves.
Did you use the Stainless Steel valves that come with the Cup heads? Did you use the solid lifters that come with the Cup motor?
You said a modified Cup cam was used. I am assuming the modification was in the lift and/or duration and the basic cam stick was utilized. The Cup cams do not use the same number of pointers as the turbo cams. How did you solve the 996tt ECU versus the Cup ECU issue as it relates to the cam pointers so the motor will operate?
__________________ Previously posted as "NineNineSixTT"
b | b | i autosport 17141 Palmdale St. Huntington Beach, CA 92647 Office - (714) 843-0200 To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Wow, you are one heck of a salesman to get a customer to re open the motor after it is finished just for a 3.8 kit! Why just change pistons? I think I would need to be institutionalized if I ever went back in the motor. I love those coatings though, we had them done a year ago on Toms and my motor, ceramic coated crowns and moly skirts and wristpins. I think it is hard to measure the benfits of a small detail such as this but I truly believe that all the small details add to make a more efficient package. I know the ceramic coating works. While I was hand fitting my own wristpins, I had to bake a few pistons in the oven to expand the metal and I could touch the crowns after they came out. It was hot but not uncomfortably so. It definately rejects heat well.
How did the turbos do at 8500 rpm? did they carry the power all the way to redline. I am sure mine have more in them although I cut them off at 8K but I was wondering how much more can be gained in the last 500 rpms?
__________________ TX Mile Results: 2.8MPH Slower Than Topgun
Being you have totally done up race heads and cams and now a full 3.8L bottom-end to boot, please tell us you've also convinced the owner/check writer to go with the GT35R's rather than waste the extra displacement and build on small GT30's......
This build would be awesome & make insane HP with the new GT35R HTA's with the ~62mm billet compressors*
The build list states GT3 Cup heads with Cup Valves.
Did you use the Stainless Steel valves that come with the Cup heads? Did you use the solid lifters that come with the Cup motor?
You said a modified Cup cam was used. I am assuming the modification was in the lift and/or duration and the basic cam stick was utilized. That is correct
The Cup cams do not use the same number of pointers as the turbo cams. How did you solve the 996tt ECU versus the Cup ECU issue as it relates to the cam pointers so the motor will operate?
Sounds like an interesting build.
Cup motors always came with hydraulic lifters. So we did use the “cup” lifters. The only engines that came with the solid (shim under bucket) lifters were the 2006 996 WC cup, all the RS and RSR lineup and the Daytona Prototype engines.
We welded custom index wheels on in a way that the ECU recognize them as TT cams.
-Betim @ BBI autosport
__________________ Previously posted as "NineNineSixTT"
b | b | i autosport 17141 Palmdale St. Huntington Beach, CA 92647 Office - (714) 843-0200 To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Cup motors always came with hydraulic lifters. So we did use the “cup” lifters. The only engines that came with the solid (shim under bucket) lifters were the 2006 996 WC cup, all the RS and RSR lineup and the Daytona Prototype engines.
We welded custom index wheels on in a way that the ECU recognize them as TT cams.
-Betim @ BBI autosport
I guess my Cup heads were 2006 996 WC.
Welding an index wheel to the cams so the sensors see the 996tt pointers .......interesting. Did you modify the lift? Same question for the duration which on the stock GT3 cams is designed for a normally aspirated motor?
One final question, when testing a variety of Porsche cams we were not able to find one that didn't have a bunch of harmonic distortion. Did you look into this issue?
PS ..... I do appreciate your straight forward answers.
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