I'll agree with you on that... and you really seemed to know what you were talking about in your second post.... it's just that the thread was on turbos and not simple bolt on's like CAI.

 

true

 

sure, if they are running the same boost. What you said didn't pertain to my post at all.

 

We were obviously talking about the powerband given by either a Turbo or Supercharger pushing the same amount of boost.

Certainly sounded like you said superchargers weren't going to give you power in the higher RPMs. Also, running a certain amount of boost would overall depend on how much HP you want....so, you made it sound like if a turbo and supercharger are running the same amount of boost, the supercharger wouldn't give you power in the higher RPMs.

"Yes, the acceleration will be less linear. BUT, it's not like our car is all of a sudden turn into a honda civic. We already have pretty good power down low so it's not like we're going to be struggling. What really need help with most is our upper powerband and the turbo will be extremely helpful at this, not to mention the power in the already strong midrange of out power band.
Turbos
SC"

 

I've always thought superchargers were good at low RMPs and turbos were more suitable for higher RPMs. Wonder if you can slap BOTH on there and maybe NOS too without completely blowing the engine to pieces? haha. But I've always like the feel of turbo serge.

 

Nope, i believe you read my post incorrectly. I was responding to OrangeJulius' post and i was discussing the power curve a turbo'ed car. I didn't discuss SC's at all except for my little " SC" comment at the end.

 

Ok, so my post did pertain to what you said. You said turbos give good power up top, and I said superchargers do that as well.

 

whatever man, we were talking about turbos and power curves. You feel like talking about SC's. let's try to go even more off topic, it'll be fun.

 

Sorry you think that only Turbos will give you power the higher RPMs. You obviously don't know much about forced induction since you were saying how we needed power in the higher RPMs, then started to bash superchargers with your small illustration. Maybe I should list some dyno sheets were a certain turboed car and supercharged car has the same peak horsepower.


How about we play Mr. Obvious?

"sure, if they are running the same boost."


Dyno chart of Turbo and Supercharged S2000. Interesting, huh?

 

If my memory serves me right, Internet Abyss spoke to a nissan engineer and they think the Z is perfect for a supercharger because this type of forced air induction matches up best with the linear powerband of the z. I am going to wait and see what develops before I choose. I don't want to be a guinea pig.

 

Roots superchargers give you power instantly, but a centrifugal supercharger normally gives you power in the higher RPMs because a centrifugal supercharger is related to what RPMs your engine is at, therefore, more RPMs, more power...generally speaking. Also depends on the efficiency of the supercharger.

With a turbo, it depends on the housing size. If it's small, it'll spool up quickly, therefore, giving you quick power and a linear power curve. That is why a twin turbo setup would be great since two small turbos are spooling up quickly. A big turbo for a relativily smaller engine will give you a power curve that's very peaky, since it'll take the engine a bit to power up the turbines.

 

Easy there cowboy. I know a good bit about FI and I don't appreciate you putting words in my mouth. I was discussing turbos and power curves with another member and you say "SCs also give power up top". Um....ok...congratuations for going completely off topic. I know this buddy, so please don't pretend to make yourself feel like a bigger person by attempting to belittle me. The fact remains, we weren't discussing SCs, and then you come a long trying to start a flame. Not only is this childish and annoying, it is also against forum rules.

If my smilie in my first post offended you, I apologize.

 

Sorry, I was only trying to add to the fact that a supercharger would be fine in the matter of adding power up top. How is talking about a supercharger off topic? If we're talking about forced induction in general, then we should look at the whole horizon before making assumptions. You gave me the impression that you didn't know what you were talking about by bashing superchargers and saying only a turbo will give power in the higher RPMs. It was very obvious you were doing that. Now, if you can't comprehend that, then sorry.

I apologize if I was belittling you. Your posts gave me the idea that you had no idea what you were talking about. Instead of backing up your statements, you just replied with your "off-topic" nonsense. My posts at least show technical reasons as to why the SC will do fine, but your posts just tell me that I can't read.

YOU made the illustration of the smiley face shooting the supercharger. If we weren't talking about SCs, why did you feel the need to add the illustration?

I'm sure you know a lot about forced induction.

Cheers

If you want to keep this going, PM me instead.

 

Speaking of ECU.. remember the AFC ( Air Fuel Controller)..
if we can install that SUCCESFULLY, wonder how that would affect the performance.

 

integrate-

Read the Subject of this thread. It says Turbos, not FI in general. This is why TJZ is saying that your numerous posts about SC are off topic. If you want to discuss all FI options and Linearity, then start a thread on it.

Back on topic-

The linearity of turbo acceleration is directly related to the sizing and design of the turbo and overall setup. Proper sizing and setup can produce minimal, if even noticably different, "lag" and a sizable power gain. That said, if you want extreme horsepower numbers, lag is most likely unavoidable.

JD