AOW162435

A turbocharger is driven by exhaust gases.

A supercharger is belt driven.



Andreas

zechunique

Thanks, Andreas. That makes way more sense. Using DC power would be less efficient and would require a huge alternator I guess. Not sure where I got that impression in the past



Still, supercharger should not have the turbo whine sound and should have the full engine exhaust note...?

tjangi

you cannot go wrong with either. The torque is a lot of fun... (ask me how I know )

Ken D

You probably got the idea from the proliferation of "electric superchargers" commonly sold on e-bay. VTEC yo!

A supercharger will make a different sound, it all depends on its design. Now, if you're running something like a 10-71, then you'll definitely hear a whine (and probably a lot of other noises, e.g. the screaming of your passengers). Just do a YouTube search for sound clips.

mgianzero

Good points. Would like to hear from more of those who have installed these superchargers. This one is considered a "newer version" with lower miles.

But there's so many variations of how to setup these SC's, that it hard to decipher which works and for how much additional cost to install and modify it. This one comes with a DME, but for a 964 tiptronic, which I don't think would work with a 993 manual very easily.

I've got some good mechanics I could work with, but would like to know more about what setup works best. I ideally would like to know how much power I could "reliably" gain without the additional cost and headache of an intercooler.

axl911

The Eaton supercharger whine is not that much. Doubt it if you can hear it over a modified exhaust. And I am 100% sure you will forget about it as you feel the torque delivered.

For a street car, the TPC SC is awesome.

mgianzero

Again, I'd like to reiterate some of my concerns ... like what the estimate of cost for install of a system like this? What additional cost is involved (in parts or labor)? Can this work with a flashed stock DME or do I need to get this on a dyno to make this feasible? What are my limits of working with a non-intercooler-type setup?

I know it is best to talk to TPC about their particular unit to know a lot of this info. But I also know how companies can try and talk you into a project when the time and modifications to make this setup work correctly can be a bit excessive.

I also chatted really briefly with a Porsche mechanic friend of mine and he's saying that these systems can be nuisance on OBD 2 cars. What's the scoop on this? Is there any truth to his comments?

axl911

I would say at least 20 hrs to install the basic system. 10-15 more if you install the intercooler. You dont need any additional parts, but it is a good idea to give the car a tune up with new plug, ingnition, etc.

There is no flashing of the dme. The uniq unit is spliced between several wires at the dme harness. This adjusts the electrical signal from several sensors coming to the car dme to accomodate the supercharger.

Additional cost would come from additional tuning of the system or you add extra stuff. Tuning would be dyno tuning to extract more power of if your car need more timing retard or fuel. Extra stuff would be gauges such as AFR and or extra sensors to monitor temp. Extra may also include water injection, etc.

The uniq can be flashed by TPC based on your car and system config. I think it come with stock standard config of the basic sc system.

If you are in a hot weather area I would get the intercooler.

No info on whether it is problematic with obd2. Or rather I havent heard of any.

axl911

There is a difference and it is a big one between the 993 and 964. The 993 uses maf? while the 964 uses an air flow flap to measure incoming air. Not sure if the tpc system measure this. Because there is a HUGE diff between the two in how they work.

Holytin

Define "not that much"...

All relative indeed. To me, it's too much:


Performance might outweigh the supercharger whine but I prefer the unmolested sound of a 3.6 NA.

axl911

Mine was barely noticeable. But it's out of the car now so I can't really compare.

nile13

Turbos whistle. Superchargers whine. It's a different noise.

axl911

I take it back. On post 95, you need an intake elbow from the 95.

doc_porsche

I was going to jump on this deal, but I can't really be sure that if I have it install I won't need something else, or my car will be in the shop for a lot longer time. Is it reliable to get a used system? There's several places selling the tpc brand new for $7500

Torquemonster

Hello Kyle,

Why do you want to remove the supercharger and put it back to stock?

thanks,
maier