NA or Turbo?

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Hi, i am not very well informed with turbos. But from what I've read from magazines, there seems to be a few kinds of turbo, some lags, some don't. And whats this thing about super charger?
Anyone watched Gone in Sixty Seconds? The Ford "Unicorn" has this button that increases its speed tremendously after a meter shows that something is full. Is that purely fiction? Cause I dont think the car has NOS since its an old car. What is it using then?
 
psionix
Hi, i am not very well informed with turbos. But from what I've read from magazines, there seems to be a few kinds of turbo, some lags, some don't. And whats this thing about super charger?
Anyone watched Gone in Sixty Seconds? The Ford "Unicorn" has this button that increases its speed tremendously after a meter shows that something is full. Is that purely fiction? Cause I dont think the car has NOS since its an old car. What is it using then?


I could sit and write for an hour about Turbos and Superchargers.. but i just woke up and it's my day off so i feel like being lazy right now...

So in Brief:

here's an analogy... like short gear ratio's vs long gear ratios..
Small turbo spools up very fast.. but it's top end is weak...
big turbo's "lag" and take a long time to spool up.. but when they do they produce Ungodly amounts of power...

Supercharger works on teh same principle as Turbo.. (forcing compressed air into the combustion chamber) except rather then using Exhaust gases to drive the compressor it uses a Belt driven pulley system attached to the Crank shaft...
so this means ZERO lag... u have instant power from top till bottom
disadvantage is u can't Intercool many types of SuperChargers.. and u can't run
nearly as high Boost as Turbo...

yes.. in Gone in 60secs he uses "Nitrous" not "NOS" NOS is just a brandname.. like Nike or reebok or swatch or Gucci...
age of the car is irrelevant.. infact old american muscle cars would probably be better platform for Nitrous since they're carbeurated and not Fuel Injected
 
omg... FnF makes me laugh so much

"MOTEC SYSTEM EXHAUST!!!" there isn't even such a thing...


in real life "brians" car wasn't even Turbo... it's a crappy Single Cam engine... :S


there are generally two ways to introduce Nitrous Oxide into your engine

A) through the intake manifold where it then shoots off into the combustion chambers along with the air

or

B) DIRECT PORT where each cyl is "tapped" and the Nitrous/fuel mixture is introduced directly into the combustion chamber in a more controlled and exact method.. more effective then A but substanially more expensive...

most street kids race using the method A.. Wet or Dry...
 
divine_monk
haha. your replies don't seem like 1 or 2 things. sorry to interrupt. please continue. this is getting interesting.

BTW. i prefer turbo for drifting. don't know why. i guess it just sounds cool to have a "turbo". people click when they hear turbo, but not many people even know what na stands for. haha.

That's just funny and sad...maybe it's just me...that just reminds me of the ignorance some people carry...sorry if that sounded offending to what you said...annywho...

knowing a lot about cars, I'd rather prefer N/A, it has better response, may not have the power for low displacment like many turbo cars, but becuase I think in corners, not straits (that mentally started when I realized my favorite car, the C4 Corvette ZR-1 was 20 or so miles slower than a Ferrari F40, so I'd figure I'd look for other areas of performace...) more ofthen than not save for if I'm concerned about speed on any strait road between turns...N/A is better.

As said here, and I'll say it myself in my own words that was simialr to what Ryouske from Initial D said. A turbo is the best weapon for straits, for turns, no matter what kind of turbo it is, even a bi-turbo setup, it will suffer from lag and your ability to take corners will be affected compared to a N/A car.

Becuase of the nature of turbos and even superchargers (depsite how they have an opposite negative effect as opposed to turbos, superchargers are best for low revolutions while turbos are for hi revs, thus there's innefficency on low RPM for turbos and an opposite effect for superchargers...) I'd rather go with N/A due to it's wider power band commpaired to a turbo. Some companies have indeed gone to the trouble to develop better turbo setups for their engines such as SAAB being able to make a turbo spoil at such low RPM for many reasons. But no matter what lag is lag even though it's an achievemt in some sense for an engine to have a turbo that spoils so quickly at such low engine RPM.

The only engine I know of to have boht a supercharger and turbocharger for the purpose of having little to no lag is the 1.8L Inline 4 of the Lancia Delta S4, the group B car that more or less ended group B due to that fatal accident on May 1st 1986.

Anywho, to stick back, I'd stay with an N/A for most cases, I like the better response, even if there isn't as much power, in a sense, if you keep a comparrsion between a N/A and turbo within relative power limits, a N/A has more power avaible compared to a Turbo even if the turbo has more power even by a little. I could be wrong but that's how I'd figure. I can't figure how else I was able to recover so quickly in a Ford GT-40 race car on Apricot hill after getting out of a drift when I compare it to something like say... a Mines' Skyline or a JGTC R34 GTR...when I had let the revs drop a lot more than usuall...I wish I had a video card to show you what I mean...oh well...

That's just how I'd figure it, sorry for not sounding more detailed...oh well..

till later...
 
Victor Vance
A NA has a wider power band? Are you kidding!? Have you driven a 4-AGE? That thing don't even wake up until around 6,500 rpm...

the displacement of the 4A-GE is relatively low, so it needs high revlolutions inorder to make power.... just like the honda's...

but generally speaking...NA does have a wider Powerband then a Turbo car...
 
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