997 2005-2012 911 C2, C2S, C4, C4S, GTS, Targa and Cabriolet Model Discussion.
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TPC Supercharger going on my '07 Targa 4S

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Old Mar 24, 2012 | 03:51 PM
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We ran into a glitch. The supercharger does not fit into the 997 engine compartment without some modifications. The options are to either "contour" the inside of the car or to modify the inlet pipe. I choose to modify the inlet pipe, as we weren't comfortable messing with the body given the possibility of damaging the Targa bottom hatch rail. I'll know in about a week if this will work, due to some scheduled travel. Here are some photos:







 

Last edited by DoninDEN; Mar 25, 2012 at 08:12 AM.
Old Mar 24, 2012 | 04:16 PM
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IIRC, don't you have to drop the engine down a bit to get the S/C to fit, then bring the engine back up again?

Originally Posted by DoninDEN
We ran into a glitch. The supercharger does not fit into the 997 engine compartment without some modifications. The options are to either "contour" the inside of the car or to modify the inlet pipe. I choose to modify the inlet pipe, as we weren't comfortable messing with the body given the possibility of damaging the Targa bottom hatch rail. I'll know in about a week if this will work, due to some scheduled travel. Here are some photos:








 
Old Mar 24, 2012 | 04:57 PM
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We did lower the engine to install it and is still needs the modifications. Hopefully this will work!

I'm not sure why the pictures aren't posting...
 
Old Mar 24, 2012 | 08:14 PM
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Suscribed.
 
Old Mar 25, 2012 | 07:53 AM
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Originally Posted by DoninDEN
I was favoring the S/C because I assumed I would get lag with a turbo kit. Having not driven the a turbo kit or a s/c kit I had nothing to base this on other than that the Porsche TT, despite being a twin turbo, doesn't really kick in until around 3,328 RPM, so I guessed a single stage would be more pronounced. Someone on here posted about driving their turbo and how when merging into tight rush hour freeway that boost can be a force to be careful of. I also felt it would allow me more flexibility with my exhaust, but what sold me was I found one in the box unwrapped on eBay for a great price.
I had the TPC turbo kit and it was awesome! No lag, just linear power delivery. It will be similar to the centri type supercharger they use for the kit. You will love it!!!
 
Old Mar 25, 2012 | 07:56 AM
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Originally Posted by captj3
How much boost are these kits producing? I would think that a engine that has 12.5/1 compression would have some issues with to much. Also do these kits come with any kind of engine management or a reflash?
Witht he higher compression engines, you can run less boost and get similar results. My TPC turbo kit ran 4.5 - 6psi. My factory turbo runs 13-17psi.

My M97 never skipped a beat!
 
Old Mar 25, 2012 | 07:57 AM
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Originally Posted by DoninDEN
We did lower the engine to install it and is still needs the modifications. Hopefully this will work!

I'm not sure why the pictures aren't posting...
Don't be afraid to massage the engine bay a little. We had to as well but you never see it, even when the system is pulled back off.
 
Old Mar 25, 2012 | 08:55 AM
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Originally Posted by Doc GTO
Don't be afraid to massage the engine bay a little. We had to as well but you never see it, even when the system is pulled back off.
Hey Doc! I'm excited! I got the photos to work. After Luke (Velocity Motors) and I talked with Tom at TPC, we decided to modify the inlet. Our concern was not messing up the bracket for the Targa hatch. While the cut looks pretty significant the inlet pipe has a crown or "V" shape on the top and it did not make as much of an alteration to the overall size of the pipe as it looks. Luke's racing this coming week, so we have to wait a week to see if it's going to fit.
 
Old Mar 26, 2012 | 02:39 PM
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Originally Posted by DoninDEN
Hey Doc! I'm excited! I got the photos to work. After Luke (Velocity Motors) and I talked with Tom at TPC, we decided to modify the inlet. Our concern was not messing up the bracket for the Targa hatch. While the cut looks pretty significant the inlet pipe has a crown or "V" shape on the top and it did not make as much of an alteration to the overall size of the pipe as it looks. Luke's racing this coming week, so we have to wait a week to see if it's going to fit.
It should fit. Tom is easy to work with at TPC. In the past I'd talk to Tom or Mike. Very nice crowd up there!
 
Old Mar 27, 2012 | 09:00 AM
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I had the VF-E SC kit on my car for over 15k miles, and loved every minute of it. I did experience an unfortunate catastrophic engine failure, but it was not related to the SC kit, even though I was running a slightly modified kit to produce 530HP. I ran it at the track many times, at high RPM's for extended periods, in the heat of Atlanta, and never had a problem.

I have a new engine now, with a new 2 yr warrantee, and am already contemplating adding forced-induction, again.

The power was surreal. So smooth, effortless, just a whooosh and you're flying forward. I was faster than just about anything on the track in the straights, including GTR's, Ferrari's, Corvettes, etc. Untouchable. I miss that.

Anyway, enjoy your installation, and good luck with everything. I know you will enjoy it.

As others have said:
-keep an eye on intake temps
-keep an eye on engine temps
-keep an eye on AFR

I installed a custom LED multi-gauge in a sport chrono pod that monitored everything in the ODB-II as well as additional sensors I installed for AIT and AFR. If you're interested, here is that thread:

https://www.6speedonline.com/forums/...lti-gauge.html

and for final results:
https://www.6speedonline.com/forums/...hrono-pod.html

CATTMAN
 

Last edited by Cattman; Mar 27, 2012 at 09:05 AM.
Old Mar 27, 2012 | 06:31 PM
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^ This may sway me from 100% stock NA to third party FI.
 
Old Mar 27, 2012 | 06:38 PM
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subscribed as well. Would love to see what she does once completed.
 
Old Mar 29, 2012 | 06:34 PM
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I picked up the pipe today from Mike at MPB Alumafab! Looks good! Debating on whether to powder coat the visible components. Will decide tomorrow. All I can see on the plus of powder coating is it will stay cleaner longer. Any other reasons?

Here are some photos of the modified pipe and Mike's excellent work:

The smallest area:


The view from the bottom, plenty of flow area:


A view down the pipe top:


Another view of the modified top:


A close up of Mike's seamless work:
 
Old Mar 29, 2012 | 07:02 PM
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Man, that is beautiful craftsmanship on that welding! Question;Did you have to mod that pipe just because your car is a Targa, or would it also apply to a cabriolet? I have an 06 C2s Cab and am seriously considering a power upgrade like this too.
 
Old Mar 29, 2012 | 10:09 PM
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Originally Posted by TT2911
Man, that is beautiful craftsmanship on that welding! Question;Did you have to mod that pipe just because your car is a Targa, or would it also apply to a cabriolet? I have an 06 C2s Cab and am seriously considering a power upgrade like this too.
My understanding is there is some contouring in the engine bay that's needed to fit the standard kit properly. Basically that's just going after the metal with a ball peen hammer. Usually its not a big deal, because there is a significant amount of dead space beteween the internal engine bay skin and the car body. For the Targa we were concerned about potentially knocking the glass hatchback out of alignment. I'm not an expert on the Cab, but Luke at felt you could contour the interior of the engine compartment of the cabriolet without any issues.

I have not heard of a single person who did not truly enjoy their FI 997. My goal is to be another one of those people. Hopefully, I'm getting there slowly, but surely!

Anybody know the benefits of Powder Coating and whether it lasts under high teemperature?
 


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