What is the difference between a turbo charge and a supercharge? How much would a
1. turbo charger be?
2. supercharger be?
3. Twin turbo charger?
4. twin supercharger?

Who is the most reliable company?
Is it ridiculous to have a turbo or supercharger on a automatic car?

Thanx

 

You really should do a little research before you ask such questions. No one is going to answer them seriously. Try http://www.howstuffworks.com/ to find out the difference between them and then search retail for prices.

G35 Coupe 6MT w/ PP & Aero
DG w/ Graphite Leather

 

Maybe I shouldn't answer because I'm no expert.......

1.Superchargers are cheaper I think require less work man hours.
2.Not sure of the exact price quote, but based on your question you need it to be hired done.
3.Twin Turbo on a dual exsaust system.
4.Never heard of a Twin Super

A Supercharger is simply the compressor half of a turbocharger that is belt driven from the crank.
In general there are two types of compressors, displacement compressors (roots, screw) and dynamic compressors. Dynamic compressors are also called turbomachines and the centrifugal compressor.
Compressors are doing a negative work, this means that they require power from an external source. This source can be an exhaust driven turbine or the engine itself.

Basiclly
Turbocharger - Driven by exhaust gas that spins a turbine at high speeds and works the compressor which compressed the air on the intake.
Supercharger - Most common is roots blower. Superchargers are connected to the driveshaft by a belt that works the compressor.

Turbochargers are considered more efficient because it doesnt use up any potential energy instead it reuses wasted energy (exhaust gas). The only notable problem is what is known as turbo lag, which is caused by the turbine taking a few seconds to spool up at low RPM if the turbine is too large, or the problem of it overspinning at higher RPM if the turbine is too small for your engine.

Hope this help, and please correct any mistakes!

 

hmm i always thought and heard supercharger is more efficient due to less parts than turbo something like that...
basically turbo will produce a lot more power than SC but only at higher rpms + there is turbo lag you can't avoid but SC produce same amount of power through 0-redline rpms... and if you have AT go for SC there will be too much turbo lags... correct me if i'm wrong.. i'm not expert on FI i wanna learn too...

 

SC you use power to make power.

BS G35C 6spd navi/aero/prem

 

So basically if I have a automatic I shouldn't get a turbo charger and instead get a supercharger. How much of a performance boost can I expect out of a supercharger? Are cold air intakes recommended before doing anything else? Sorry I'm a car newb and this is my first car so I have a lot of questions and thanks to all who replied.

 

OMG! Yeah, I definitlely agree that more research should be done before you ask a question like that! And as Meridan stated try howstuffworks.com. I even include the link

Turbos
[link]http://auto.howstuffworks.com/turbo.htm/printable[link]

Difference between Turbo's and Superchargers
[link]http://auto.howstuffworks.com/question122.htm/printable[link]

I would really recommend reading those two articles. I used to spend days reading this stuff. So much so that I felt like there wasn't enuogh time in the day to read it all!

Hopefully this will get your juices flowing. :-)

'04 G35 6MT Ivory Pearl
K&N Drop In / Stillen Grounding Kit
Borla Headers/Dual Cat-Back Exhaust
Nismo Front Bumper/Side Skirts
Impul Rear Bumper/Spoiler
AirSplat.com for AirSoft Guns!

 

I seriously disagree with that. EDIT: I mean with hyunwoo8521

1. If you have a sedan At you will have to worry about the mechanical fan being in the way of any kind of pulley setup - the reason why ATI procharger is not made for the sedan (in which case I would still not touch it with a 10' pole - or any centripical SC - that's just me though).

2. Turbos are always, always, always, without exception more efficient than SC's for the reasons desribed above and because they produce an exponential boost curve vs. rpm as opposed to a linear one (SC's). SC cars take a huge hit in the MPG department, regardless of driving style, while turbos use power that was going to be wasted anyways and use more gas then normal only when turbos spool up , i.e. only when you actually want to, and do, make more power.

3. The ONLY advantages of SC - the only ones IMO and based on the facts that I have seen/reviewed - is lower price/easier install and less lag in certain cases. The lag should not be a problem as we have a lot of low-end torque on these engines. THe lag still exists on the procharger and the vortec as it is not a roots blower. If I HAD to go with an SC, it would be the upcoming Dreamworks (provided everything is as promised, or Stillen with a custom TS ECU - if it hadn't involved a hood mod).

4. The many advantages of turbos over SC's:

i) efficiency
ii) longevity - although only if you pick a good kit like PE or TS (TopSecret). THe PE uses full ball-bearing turbos made by IHI (PE1420). These are practically care free (if you take care of them) for 100K-120K miles. Plus if a turbo does leak (many many miles down the line), it is a cheaper proposition to rebuild then the SC (as hte design is simpler then in the SC).
iii) more power per boost (look at the procharger vs. tt setups). Although there are very few of these TT's around, I have seen a few dynos.
iv) Centripetal SCs (vortec, procharger) are NOISY. I DO NOT care for that at all. Turbos sound sweet on the other hand.
v) most SC's come without an intercooler - the stupidest thing you can do for these very low-tolerance engines. The cost of the SC usually puts you in the TT territory, or well within reach of it.

I am sure I will think of something else... If I am wrong on any of this, I will be the first to admit it.

... and for this comment:
<blockquote><font class="small">In reply to:</font><hr>

and if you have AT go for SC there will be too much turbo lags

<hr></blockquote> Where did you get the idea that the AT's have less low-end torque then MT's . They actually have more at launch from rest then MT's due to torque multiplication. Read the many discussions on torque converters that have been had on this board.

Gurgen


<P ID="edit"><FONT class="small"><EM>Edited by gurgenpb on 12/23/03 09:01 PM.</EM></FONT></P>

 

A colleague had one of the first ATI Procharger superchargers installed in his G35c. The total install, dyno time, and tuning probably set him back close to $10k. His monster now produces a prodigious 420 crank hp.

RainMeister
'04 G35C 6MT, diamond graphite, premium, nav, aero

 

Man, now there is NO REASON WHASOEVER to get the procharger if it costs that much.

You can get the PE kit installed for that much.

Gurgen