You are absolutely right. Granted newer sc's eat up less than old ones, it still does make a difference. In theory, all other things being equal, they produce the same. However, in practice, the SC unit itself does rob the engine of power and that means that you are correct. I forgot about that and stand corrected; a turbo will put a little bit more power down per psi than a supercharger. Good post sir.

What I was trying to get at, that's been bothering me a bit is this whole turbos are so much better than superchargers attitude when they really do the same thing and produce almost the same power.

now my next question is, will a SC be more of a install and forget than a turbo? When I upgraded to a bigger turbo in my TT it seemed like little things just keep coming up, like a boost leak or the extra heat causing hoses to go bad quickly, which caused me to buy a bigger IC. Im hoping a SC will be install and forget.

In a nutshell...yes.

Don't listen to anyone who says that turbo setups are reliable. They are lying. This applies for any turbocharged car which came NA from the factory as it's just the nature of such extensive modification. While it might be "reliable" in the sense that you won't blow your engine or need to replace a turbo so long as you're careful, as you mentioned..."little things just keep coming up." One day it's a boost-leak, followed by an oil-leak, a faulty sensor here and there, hoses going bad, boost-creep issues, misfiring, and on and on. So many people go turbo and love the car the first week/month but never end up having it run the same or make the same power since its initial tune. It's a constant headache, or in many cases a nightmare, that doesn't go away until you sell the car.

For the most part, supercharger installs are more of a "set it and forget it" deal. I'm not saying that your car will be as trouble-free as stock, but it's a no-brainer compared to turbos. Beyond the reliability factor, the headache and stress factor drops significantly when talking about supercharging an NA car vs. turbocharging it. Yes, I'm being very general, but this opinion stems from years of observation and experience, both first-hand and through friends/forums. I've been in the game long enough, and I dare anyone to tell me I'm wrong.

The above is not only limited to Zs, either. The same holds true to everything from S2000s and RSXs, to Mustangs, Corvettes, Vipers, and M3s. But of course...everyone has a "boy" who has a turbocharged _________ and has been problem-free for xx,xxx miles. LOL. :)

Lots of truth to the above statement. Even turbo cars from the factory, when they go larger turbos/mass upgrades they get these little annoyances.

Went on a twistie run with a Subaru/Mitsu group this last weekend. Big power on some of those cars, most running E85.. Quite a few of them had minor annoyances they were fixing when they stopped.

Boosting an NA car will always lead to some annoyances, if you can work on your car, it's not as bad..

But damn is that power intoxicating:tup:

Well that sounds good cuz I did do some of the work on my TT when it was upgraded but it was a constant tinkering. Im hoping that the SC will be alot easier which was one of the reasons I was interested in the lower PSI with the ICs cuz I thought running at a lower PSI might help keep the SC and other parts more reliable. Im only looking for about 100 HP more than what it has stock. 390 to the wheels would be great for me.


And yes power is intoxicating: I went to the Z from my chipped 2.0T TT which was kinda quick for the more power and now I want even more. I was saying a car that can 0 60 in under 5 secs was all I wanted but I guess not.

lol @ JoeD, beat me this time.

Nevermind.

^ read the previous posts

:ninja3:

I have a question. How many degress does lets say an average sized IC cool down the pressureized air? The air comming from a turbo is like over 300 degrees F right? Seems like IC do a great job. Do people still use water cooled IC today? I have never seen one in person.

:rofl2:

I'm sorry! I can't read.

I agree, and, there's also the difference in the torque/hp curves. turbo's will look better for peak power, but average power across teh band, S/C is better IMO - at least...the right kind of S/C. In addition, as far as I understand it, a turbo can drain low-end torque/power until the turbo's spin up. Might not be much of an issue...but if you drive your car with the engine mostly under 3K RPM, and occasionally get above 5K RPM, a supercharger is the better option, IMO.

There's also something about turbos and turning off your car. I nearly bought a cobalt SS (I know - lol), and I did a bit of research on turbo-cars, and you're supposed to wait 30 seconds to a minute before shutting off the car, so the turbos can spin down as much as possible so that when you shut off the engine they don't burn the oil (out of) in the bearings/seals due to heat and continued movement until they stop spinning. This can cause issues with the bearings and seals getting damaged, causing pressure issues and leaks.

S/C - you turn the engine off, it stops, no parts moving afterwards without oil pressure.

Turbo cars also need their oil changed more often - they add a lot of heat cycling to the oil, making it "wear out" faster.

At least, that's what my research has suggested. I have no experience on the matter.

False.

I can't quite put my finger on why, but I LOLd while reading this. Seriously. :bowrofl:

Explain?

Sam updates?

OK. Thanks for sharing.

So, cars come with a turbo-brake on them now to prevent them from burning the oil in the bearings?

I mean, most oils start to have issues around 400F. Exhaust temps are what, 1300F....

You shut off the engine, you lose all oil pressure. What's feeding the bearings to your turbo, that's still spinning...?

Compare that to a belt driven supercharger...you shut off the engine, the supercharger stops spinning.

sam updates?

Turbo timers help prevent oil cooking issues with aftermarket turbos. Essentially, they allow your car to idle for a minute or less once you remove the key from the ignition. This keeps oil circulating through the engine and turbo to not only allow for any necessary lubrication of the spinning turbo, but to circle the oil throughout the engine to help cool it.

So is it something like an auxillary oil pump, or something else?

Actually the correct answer is.......

Depends on the type of SC.
:D

It is not an auxilliary pump. It is a small control module that is connected to your car's ECU that allows the car to run for a set amount of time once the key has been removed from the ignition.

why not start a separate thread to talk about S/C and how the work compared to turbo's this is a thread for GTM's SC.

How about you just skip over the unrelated comments and read updates when they happen?

No, they just literally keep the car turned on for maybe a minute or two after you remove the key and get out. Thats all they do.

You used to have to let turbos cool down by idling the car a little bit before shutting it off, but that is no longer necessary with today's turbos. Turbo timers really arent necessary nowadays, but some people will argue otherwise.

I think JoeD is laughing a bit because you are behind the times on your research..

Exactly!

I was laughing more so because he brought up having to idle down as if it was an issue which needed to be bought up. :)

Turbo-timers are the most useless devices I can think of. Are you ever in that big of a hurry where you need to shut your car off and walk away immediately after a few hard, full-boost pulls? It's advised to "cool off" any car by idling after running it hard, not just turbocharged cars. Also, as mentioned above, coked bearings are a thing of the past. You have nothing to worry about with modern turbos, with advancements in oil to boot.

Here's a thought...how about you refrain from going WOT or running the car to above normal operating temps 2 minutes before you reach your destination? I was under the impression that this was common sense...

K...enough about this non-issue. :)

:iagree:

They're not THAT useless, it's like how your windows have a module to automatically lift them all the way etc.. I'm sure someone dishing out 8k on TT kit wouldn't mind adding another 100 bux for a timer

+1 we want updates from GTM not someone argueing about Turbo timers....
A turbo timer has absolutely nothing to do with a SC setup..... go ask in the GTM TT thread for that garbage....

For real, let's keep it on topic

Update us Sam, Pix, Numbers, Video's, Women, ANYTHING!! lol

:tup: a vid would be very nice :)

How about you follow the form rules and stay on topic.:shakes head: or :gtfo2:

Updates?!?!?!




DAN

SHUMBY FOR MOD!! :rofl2:

Really, where's this rule you speak of? :tiphat:

It's all in the forum rules

Nissan 370Z Forum - Announcements in Forum : Nissan 370Z General Discussions

Whatever...:hello:

guess we will have to wait for AK to get back to deal with you. And WTF is with the pic smilie?


Anyway guess we will not be seeing anyupdates now until after the weekend

Stay on topic!