Superchargers

[davidcross]

Been reading about adding superchargers to regular 993 arioram and non varioram and had a chat with Neinmeister. Ive yet to get a quote but the performance increases seem impressive although i should imagine not a cheap upgrade. Anyone any experience of doing this or views????? Was told the standard brakes would surfice and providing im not blasting it away from every set of lights it shouldnt wreck the drive shafts etc

 

[Mark Elder]

Not me - I'm to scared of what my NA C4 can do with no mods - but there is this thread from a while back:
http://www.porscheclubgbforum.com/tm.asp?m=77422

 

[davidcross]

Tks for pointing this out very usefull. Seems an expensive project!!!

 

[38F3E1]

You will probably also find people that have done it over on the Rennlist forum. Not cheap but power increases on the 993 never are.

Ian.

 

[p27549]

I have done it myself. I bought the TPC supercharger kit 3 years ago and installed it myself. The performance is excellent and the car is lovelly to drive, 6th gear pulling power is excellent. Yes it is expensive but can also be removed. I would be very careful of the power figures given, i think they are miles out. 400bhp claims i am seeing 350's and just under 300lbft torque, I have completed 16k miles without any issues. The beauty of the low boost pressure SC is that it can run on a standard engine. On a run i am getting 28 MPG and around 22 around town.
My install has a roots blower with off boost bypass but does drop boost pressure at 4k to 5k rpm. I believe there is a centrifugal blower available which will give more power but i believe they run a higher boost pressure so engine mods maybe required.

1995 993 CAB
TPC intercooled Supercharger with UNI Q piggy back ECU
Gerts RSR's with standard Cat converter and manifolds
No other mods completed.

 

[davidcross]

Funny as i read an article in a Porsche mag that featured your SC????? Its down to costs at the end of the day and im thinking it will be on the expensive side

 

[p27549]

David,
I don't believe the article will be about my car. Have never spoken to anyone about it. I would be interested in seeing an article though.
I was lucky when i purchased my kit as the exchange rate was in my favour, Just under 4K for the kit including postage. I made my own intercooler kit as i thought the TPC one was too expensive.

 

[nickgardner]

horses for courses but Id be doubtful it does anything for the overall value of the car (Saw a 993 S in Chichester cars fo 41K the other day -admittedly a nice one) and its such a well balanced car in standard form imho I'd spend my time and money elsewhere. but each to his own []

 

[jmspear]

Blimey, great to see that old thread I started all the time ago, well, I went and got lots of driver tuition as I got more and more into track days, and as I drove more and more tracks I say more and more modified turbo cars in bits in the pits, and so came to the conclusion that a S/C conversion would be ok for those quick overtaking moments but not for prolonged use on the circuit, unless I was prepared to rebuilt the engine every year! so I sold the s/c kit on and then went on to get the 9m billet head conversion, not as extreme as a s/c conversion, "only" about 330BHP on a NVR and about 275 / 280 lbft (have detuned it a bit from 9m's 350 claims as it it used 90% on track and I want it to last) and it has lasted, have done about 35k miles on it now at going v strong, only issue is I have gearbox whine now so will probably have to get that rebuilt I suspect from all the torque and power and it being used for about 27k of the 35k on track, and they say a track mile is equal at least to 3 road miles, so have done probably equivalent to almost 85k road miles on it. HTH John

 

[p27549]

Nick,
Absolutley correct. If one is after purely performance then an early 996 TT is probably the best value for money at the moment.
For me, i wanted a 993 cabriolet but also wanted near Turbo power. So the SC satisfy's all requirements, soft top classic with a little extra performance. For the road the SC is great loads of power on tap right through the rev range. For track days i use my 185BHP / 170 Kg motorcycle. Horses for courses..

 

[graham m]

Will the S/C fit under a standard engine cover? Or do you have to fit the Turbo rear tail to accommodate the intercooler?
Just thinking!!!
Graham

 

[jmspear]

yes the super charger fits under standard cover, needs a little fettling inside but does fit. No you can't fit an intercooler under the std cover, need a turbo or RS (which is the most popular option) cover, the sleeper solution is to fit a charge cooler at the front which means no body work mods and retains the std look. BUt you then need to plumb in the extra radiator and pipework, this was the option I was looking at with my s/c kit. Has been done by a couple of people with good results. John

 

[Jon Kent]

Just to pitch in with a budget option, my non-varioram 1995 C2 will soon be going to Leverkusen for a light tune with Roock Sportsystems.
This involves 2 sports silencers, sports airfilter (I already have a K&N), 71mm throttle body and remap.
Price is 1600euros fitted and should be 300bhp (RSC300 conversion package).
I bought my first 964 from Roock & was nothing but impressed with their service and aftermarket products.
I'll post in a few weeks with some feedback.
Interestingly, my car was owned by Silverstone Circuits from 1999-2007, then by a Porsche Specialist as a track toy......but it still had the anti-tamper cover on the ECU/DME.
I've now drilled out the headless bolts, to ease the imminent fiddling []
Best Rs,
Jon

 

[szklarek]

That sounds really good value - will be interested in your feedback.

Regards
Anton

 

[p27549]

Jon,

I would be really interested in the throttle body details. One item i was told that restricts my Supercharger is the size of the Throttle body. The Manufacturer of the SC advised that when they machined out the throttle body the unit suffered from cracking due to the thin walls.
Mind you i am not sure on the size of the original throttle body