craig001

I am looking at a 97 sc'ed targa. It's at a dealer and the paperwork on the supercharger did not come with the car. So does anyone recognize this set-up? SOK, EVOM, etc.? I am going to email these folks with pics and VIN to see if they have the car in their files are well. TIA.

NP993

Dunno who did the install, but that sure does look like some hacky wiring work. Beware.

craig001

Yeah, the coils being moved kind baffled me and the wiring concerns me as well, though it resembles an install shown on TPC's website. I am going to see if the dealer who has the car is will take it to a Tampa Bay/St. Petersburg Porsche dealer for a PPI. Or does anyone know of another place to take the car for a PPI on the New Port Ritchey area? Thanks.

Colin 90 C2

looks like SOK, who is no longer in the biz. Car should have tons of power. Look up Kirk on the 964 forum. He had one that he was going to install.

craig001

I thought of SOK at first as well, but the car started off in Arizona then moved to Florida. So I thought of EVOM's. SOK being out of business explains why their website no longer comes up in a Google search.

My concern is that it's a backyard job as opposed to a professional install.

NP993

It looks to me like a backyard job. I've only seen supercharger installs in pics, but don't recall seeing any that had so much obvious hackery -- the home-made coil brackets bolted to the latch panel, the exposed wires, the individual wires hanging freely in the engine bay, etc. I wouldn't go near that car unless 1) the dealer sold it for cheap and 2) I could bring it to a supercharger specialist to have the install evaluated.

BTW, you should go to an independent specialist for a PPI, not the dealer. The 993 at this point is too old for the dealer. They won't know what to look for.

craig001

I am thinking about using German Specialties, Inc. 301 Marlborough St. Oldsmar, FL for the PPI. They install TPC SC kits according to their website and have some favorable comments about the service and owner, a guy named Leo. The price of the car is $21k - they left me a voicemail yesterday on my cell.

onefstm

That is a TPC kit. If installed at TPC they are very reliable. I have upgraded some of my piping. However, this is how the car looked when I got it 20k miles ago. It now has 30k trouble free supercharged miles with probably 2k of those being on the track.

onefstm

Here is current pic of my engine bay. I added a spearco intercooler with fan, a 6lb tpc supercharger pulley, and their upgraded unichip piggyback engine management software.

craig001

Jeremy,

Are your coils in the factory spot or were they moved? I came to the same conclusion about the car having a TPC set-up after seeing a picture on German Specialties website. Your install looks a little neater though. THe intercooler fits nicely. Thanks.

What kind of paperwork/manuals/documentation came with the sc? I've emailed TPC and am waiting to hear back from them.

The targa has an analog boost gauge in place of the clock which makes me wonder about the airbag light. If the car comes to StL then I may install the BlownSix gauge that has the idiot lights, digital boost/clock and afm display. Guess I will keep my Hammer and see about getting an OBDII plug.

onefstm

If you look at my first picture, you will notice a box that is bolted to the fuse panel in the right hand side of the engine bay. It looks like your car has the same box. This is the original TPC piggyback box that alters the stock signals for fuel and ignition. It also controls the 7th injector. My car originally came with this system. However, soon after I bought the car in Dec of 06, I upgraded this system to their new Uni-Q system which was a much faster processor and allowed slightly higher boost. My car is OBD 1 and never gets the CEL light. However, I am not sure about OBD-2.

As far as the coils go, you can see mine mounted below the pic of the supercharger pulley. If looks like someone made a nicer mount for the coils on the Targa. My car was the original prototype car for the SC kit, so TPC could have incorporated this mount in later years.

On the TPC website, you should be able to find the full installation info for the SC. However, your best info will be found on this website. Just search for "TPC supercharger". My car did not come with a shred of paperwork. However, I picked the car up for the TPC shop, since the owner lived nearby. They repeatedly told me that the car was bulletproof. So far, they have turned out to be right.

Based on your pictures and the engine management system, I would say that your car has one of the early kits. Have you driven the car? If so, what were your thoughts? Also, how much are they asking and how many miles are on it?

craig001

Jeremy,

I have not driven the car yet. Much less seen it in person. My contact with seller has been by phone and email. We've agreed on a price as I have said. Now the question is, are they willing to drive the car 25 miles to German Specialties and leave the car there for the PPI. Plus if the shop says everything is ok with the car I am thinking about having them do the 45k service while it's there and then fly down, do the paperwork and drive ~1100 miles to StL.

I did go yo TPC'ssite and downloaded their install manual - 13 pages? Not that much for a kit that can do so much. How much of a difference the that UniQ make? I am considering the IC set-up, but first the car, taxes and plates. Baby steps. But I am still concerned about liking the Targa over a ragtop.

craig001

Noah

Appearantly with the TPC SC kit, the coils need to be relocated on the 993. On the 964 they stay in orginal mounting location. The 993 kit includes a T shaped bracket for the coils so it looks like they relo'ed the coils to the latch panel.

Jeremy, I checked the TPC site, their intercooler kit sells for a shade under $4k. I can't recall if it included the UniQ. German Specialties recommended leaving things as they are if the PPI shows no codes before I get the car to MO. I have to get the car inspected for registration and plates. On 1996 on they plug into the OBDII and read the coded so as the saying goes, "If it ain't broke, don't fix it". I was also told that there a several "adjustments" made to the car when installing the SC kit and anyone of these could throw a code. Florida is nice in that they don't check codes appearantly. Baby steps.

Airsupply

how much power do those kits put out?

NP993

I would be much more concerned about what is obviously a sloppy, unprofessional supercharger install than I would be about codes, but you seem remarkably unconcerned about that.