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Twisties with FI

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Old Feb 24, 2011 | 06:33 PM
  #111  
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I can't see a turbo being THAT much more abusive to the engine internals. I mean the supercharger is ran off the crankshaft...which means all of it's mass is turned by the crankshaft, ALL the time, right? What does a turbo put extra wear on all the time considering it's basically ran off something that is free.
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Old Feb 24, 2011 | 06:33 PM
  #112  
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Originally Posted by HMFIC,Feb 24 2011, 06:55 PM
I understand this. But who are you trying to educate? anybody that is listening? because what you say is the obvious.

To say you see how the turbo's benefit the 4 cylinders more but not so much the v8 folks when a lot of the v8 drag folks run turbo's just shows what more is favored. Thats why i was asking you about the top fuel v8 in the twisties.

Its not just limited to the 4 cylinder folks.

If SC's are that much more effiicient and and less abusive, all the turbo/twin turbo cars from factory would be sc'd. From what i see, that's not the case.

I am in no way saying a sc is bad or even not suited for any applications. I favor both. But from reading almost all of your responses, you are so biased towards SC's and not being open minded to turbo's at all.

I for one told Sparrow *best friend* that if i had never went turbo, the SOS kit would be the kit i would get especially if i had an 06...mainly because of the hondata which is a wonderful thing for tuning btw.

So you see, i'm not competing with you, i'm understanding you. Just wished you would not be so defensive.
Well for starters I'm presenting my knowledge to the OP.

I didn't answer your question about a top fuel drag car in the twisties becuase its A. Ridiculous, or B. You don't know what a TOP fuel v8 car is. And I'm not sure where your assumption of most v8 cars run turbos vs SC come from, becuase I can't think of one from the factory other then a few exotics. But all American manufacture v8 cars select SC's from the factory over turbos. Smaller displacement 4 cylinder Japanese motors typically select Turbos from the factory. But neither of this information is pertinent to the OP's application so its moot, but yet here I am debating it with you.

I really don't feel like getting into this kind of pointless debate with someone such as yourself who is clear to me at this point lacking some of the basic understanding of how the different forms of FI work, let alone understand where they might best select an appropriate application. I'm biased towards SC becuase it applies to the application in this thread. If this was a s2000 drag race thread I would shut up and let all the turbo guys chime in, sorry don't mean to come off as a dick
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Old Feb 24, 2011 | 06:46 PM
  #113  
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I would like to address 2 things that have just been said. One being the turbo vs SC wear psi vs psi. I see the disadvantage ( reliability wise) of the turbo giving full boost 3500rpm and up vs the full boost of the SC only at 9k. Also the fact that that the SC is run off the engine rather than the free energy of the exhaust. I am not sure which is worse on the engine. Also psi for psi wont a turbo put down larger hp numbers? Reasonably more power equals less reliability. Given that both are set up and tuned properly.

Secondly V8 guys dont need the power down low as much as we do so a SC would make a lot of sense for them. Maybe that is why we dont see more turbo V8 V10 and V12s although mercadies BMW and jaguar do have a few..

As controversial as the issue is i feel that mostly the thread has been kept mature a few out breaks here and their yes but it is a forum. I would like to thank you guys for that and for the info your giving me.
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Old Feb 24, 2011 | 06:51 PM
  #114  
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See this is the issue. For one, asking the question was the obvious answer. 2nd, you assume that i dont understand the difference in either FI setups and how they work. I completely understand. Which is why i asked, who were you trying to educate.

The sc and turbo/twin turbo comment on factory cars wasn't referring to V8's. Cobalt, was SC'd, now turbo, mini cooper s, was supercharged, now turbo, bmw 335 are twin turbo ect ect, i'm simply stating factory cars. The V8's with turbos were pointing towards the drag cars that are v8's that run turbo's. Again, which I see more of than sc'd v8's.

I never ONCE said the turbo was better than a SC was better in twisties.. not ONCE, I simply put out the information that a properly setup turbo kit can give very minimal lag and have such great transient response and overcome the hard hit of boost. as a matter of fact, I even told you i never disagreed with you.
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Old Feb 24, 2011 | 06:56 PM
  #115  
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^^^ As for power vs boost amount compared to an SC vs Turbo the answer is yes and no. It depends on the size of the Turbo and exhaust/manifold efficiency. Centrifugal blowers that are on the market for the S I have found are much closer in efficeincy/size so there is a bit less variance in output per psi compared to all the turbo choices and variables. Generally a typical size turbo such as a GT30 will deliver about the same hp as any of the Novi blower line up per psi, trq is where the bigger difference is.

The SC running a belt off the motor has little more wear/tear on it then adding another accessory, its not a factor in adding wear to your motor. Even though its running at all times, your motor only sees boost when the throttle is open enough, generally 50% or more depending on load and pulley size and engine rpm. Most of the time when driving normal your just running in vacuum, no boost.
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Old Feb 24, 2011 | 06:58 PM
  #116  
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Does anyone (turbo or s/c) have any vid clips of interesting encounters in the twisties with street bikes or fast cars? I posted my encounter vs a liter bike on page 1. Feel free to PM me.
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Old Feb 24, 2011 | 06:59 PM
  #117  
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Originally Posted by HMFIC,Feb 24 2011, 07:51 PM
See this is the issue. For one, asking the question was the obvious answer. 2nd, you assume that i dont understand the difference in either FI setups and how they work. I completely understand. Which is why i asked, who were you trying to educate.

The sc and turbo/twin turbo comment on factory cars wasn't referring to V8's. Cobalt, was SC'd, now turbo, mini cooper s, was supercharged, now turbo, bmw 335 are twin turbo ect ect, i'm simply stating factory cars. The V8's with turbos were pointing towards the drag cars that are v8's that run turbo's. Again, which I see more of than sc'd v8's.

I never ONCE said the turbo was better than a SC was better in twisties.. not ONCE, I simply put out the information that a properly setup turbo kit can give very minimal lag and have such great transient response and overcome the hard hit of boost. as a matter of fact, I even told you i never disagreed with you.
I think you just allowed yourself to get too far sidetracked from the OP and I started to bite. Lets continue to add value to the tread shall we
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Old Feb 24, 2011 | 07:02 PM
  #118  
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Originally Posted by hariku821,Feb 24 2011, 10:46 PM
I would like to address 2 things that have just been said. One being the turbo vs SC wear psi vs psi. I see the disadvantage ( reliability wise) of the turbo giving full boost 3500rpm and up vs the full boost of the SC only at 9k. Also the fact that that the SC is run off the engine rather than the free energy of the exhaust. I am not sure which is worse on the engine. Also psi for psi wont a turbo put down larger hp numbers? Reasonably more power equals less reliability. Given that both are set up and tuned properly.

Secondly V8 guys dont need the power down low as much as we do so a SC would make a lot of sense for them. Maybe that is why we dont see more turbo V8 V10 and V12s although mercadies BMW and jaguar do have a few..

As controversial as the issue is i feel that mostly the thread has been kept mature a few out breaks here and their yes but it is a forum. I would like to thank you guys for that and for the info your giving me.
Hariku, Obviously with the information bouncing back and forth, you can clearly see the positives and negatives of both setups. Learning them text book style is one thing, but if you get the chance to jump into both a sc'd and turbo'd S2000, do so. Get the feel for them as you will get a better understanding and feel of what you may want.

Honestly, I have experience in both, and s2000junky may have as well. He may have felt the SC was the way to go, i personally went the turbo route. Again, as i stated, if i hadn't had the turbo, and preferebly had an 06, i would've gone with the SOS kit. But i just love my turbo's

I will never take anything away from a SC kit. nor the people that drive them. Ever. It just boils down to personal preference.

I can blab all night about how a turbo kit can be reliable or just as reliable as a sc kit. but there is a reason why sc's are known to be more reliable. So that's just food for thought.

Dont let what S2000 Junky and myself have debated about sway your decision either way. Just see if you can catch a ride or drive both boosted cars. That'll help tremendously.

GL!

And S2000Junky, You're a good man! i've read a lot of great things from your posts. I seriously hope this doesnt ruin our cordial S2k friendship. I have a feeling you're on the path to be up there with Sideways soon
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Old Feb 24, 2011 | 07:02 PM
  #119  
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Originally Posted by s2000Junky,Feb 24 2011, 10:59 PM
I think you just allowed yourself to get too far sidetracked from the OP and I started to bite. Lets continue to add value to the tread shall we
Agreed
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Old Feb 24, 2011 | 07:08 PM
  #120  
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[QUOTE=soulicious,Feb 24 2011, 07:58 PM] Does anyone (turbo or s/c) have any vid clips of interesting encounters in the twisties with street bikes or fast cars? I posted my encounter vs a liter bike on page 1.
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