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Forced Induction Turbo, Supercharger, Methanol, Nitrous


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Old 06-04-2020, 01:27 AM   #29
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Originally Posted by mrg666 View Post
No other FI option gets better MPG then JRSC. Never seen any turbo kit better than the stock NA engine in gas mileage where JRSC is actually better. on my car.

Nobody measured/posted crank horsepower here.

I think JRSC makes ~260 WHP at 9psi. Is there anything better at 9psi?

All of the "turbo is best" arguments are based on low rpm torque which people think increases driving fun. And, this is funny, most of them drive manual but too lazy for downshifting.

Turbo literally kills the spirit of this car and blows up the engine.
I make that at 5.5 psi with my GReddy T518Z
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Old 06-04-2020, 02:20 AM   #30
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guys. i got a hunch, but something tells me he's a fan of turbochargers.

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i m too a fan of turbo, and i put a supercharger in my car

86toyo just put on the table objective facts about each other, if you read him good, you ll see he s right in every statement, and those don t imply subjective opinions, like some other s still doing
I also have a supercharger. There is no perfect universally right answer for everyone, it's up to each individual to gather all the facts and decide for themselves. Turbos make a lot of sense for some, PD SC or centrifugal SC for others.

for a low budget (relative) FI track car i would do a centrifugal like JRSC.
for a low budget (relative) FI DD i would choose Turbo.
for a high budget (relative) FI track car or DD i would choose Turbo.

I chose PD SC myself because for a DD it is better than a centrifugal SC, in my opinion. But I do all the work on my car myself, and didn't trust myself to do a proper turbo setup at the time i installed the SC so PD SC it was.

So you could say for a FI DD that is your DIY weekend project i would choose a PD SC unless you really know what you are doing when setting up a turbo.
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Old 06-04-2020, 04:27 AM   #31
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I make that at 5.5 psi with my GReddy T518Z
Can you explain how? Just tune, header, larger turbo, E85 ?
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Old 06-04-2020, 01:39 PM   #32
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Can you explain how? Just tune, header, larger turbo, E85 ?
The T518Z is a small turbo. Going with a larger turbo will not change the HP that much at a specific psi. It will change when the boost starts and how much max boost you can get. I believe that turbo is only good for upper 300hp range. In order to make more HP at the same PSI you have to control IAT and have a good tune. I am sure CSGMike can have a more detailed explanation. Plus his explanation of a “Properly” sized turbo for your goals.

And there is only one correct answer when someone asks if they should turbocharge or supercharge their BRZ...... “Yes!”
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Old 06-04-2020, 02:26 PM   #33
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The T518Z is a small turbo. Going with a larger turbo will not change the HP that much at a specific psi. It will change when the boost starts and how much max boost you can get. I believe that turbo is only good for upper 300hp range. In order to make more HP at the same PSI you have to control IAT and have a good tune. I am sure CSGMike can have a more detailed explanation. Plus his explanation of a “Properly” sized turbo for your goals.

And there is only one correct answer when someone asks if they should turbocharge or supercharge their BRZ...... “Yes!”
I agree with your answer. I am just trolling with turbo fanatics to leave the counter arguments in this thread.
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Old 06-04-2020, 02:35 PM   #34
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I agree with your answer. I am just trolling with turbo fanatics to leave the counter arguments in this thread.
Trolling is intentionally deceiving or lying for the sake of a response or reaction. Not sure how that adds value to a forum/thread.
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Old 06-04-2020, 02:41 PM   #35
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The T518Z is a small turbo. Going with a larger turbo will not change the HP that much at a specific psi. It will change when the boost starts and how much max boost you can get. I believe that turbo is only good for upper 300hp range. In order to make more HP at the same PSI you have to control IAT and have a good tune. I am sure CSGMike can have a more detailed explanation. Plus his explanation of a “Properly” sized turbo for your goals.

And there is only one correct answer when someone asks if they should turbocharge or supercharge their BRZ...... “Yes!”
bigger turbo will have more air flow than a smaller one at same Psi, so a bigger turbo will give you more hp for less boost
and also make engine less knock prone so shitty-fuel friendly
only downside of bigger turbo is slower spool, but brings only advantages.. also IAT (actually proper name is Intake Charge Temperature for a FI car) is lower with bigger turbo, for the same HP compared to smaller
"properly sized" would be a kind of compromise between fast enough spool, and max hp
Those 2 are one the contrary of the other in the choice of turbo size
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Old 06-04-2020, 02:46 PM   #36
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Trolling is intentionally deceiving or lying for the sake of a response or reaction. Not sure how that adds value to a forum/thread.
All of my arguments are facts, or as conceived as facts. The value I add is countering loudness of fanaticism. That is what I call trolling.
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Old 06-04-2020, 02:54 PM   #37
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All of my arguments are facts, or as conceived as facts. The value I add is countering loudness of fanaticism. That is what I call trolling.
You either restated thing’s already said (which is fine to add reassurance) or just said false opinions/lies/mad up fiction. (Which is trolling, and adds no value). But I don’t see any NEW unique fact that you added to contribute value. But to each their own. Can’t control the internet. 🍻
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Old 06-04-2020, 03:46 PM   #38
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You either restated thing’s already said (which is fine to add reassurance) or just said false opinions/lies/mad up fiction. (Which is trolling, and adds no value). But I don’t see any NEW unique fact that you added to contribute value. But to each their own. Can’t control the internet. 🍻
I don't need your approval to state anything. So you would control internet if you could? What a narcissistic idiot you are.
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Old 06-04-2020, 04:36 PM   #39
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Can you explain how? Just tune, header, larger turbo, E85 ?
Actually that's on ACN91. Just a good tune. This is with a stock front pipe in place too.

Turbos don't have the parasitic loss of a supercharger, so the power difference is what the supercharger is eating, all else equal.
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Old 06-04-2020, 04:38 PM   #40
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The T518Z is a small turbo. Going with a larger turbo will not change the HP that much at a specific psi. It will change when the boost starts and how much max boost you can get. I believe that turbo is only good for upper 300hp range. In order to make more HP at the same PSI you have to control IAT and have a good tune. I am sure CSGMike can have a more detailed explanation. Plus his explanation of a “Properly” sized turbo for your goals.

And there is only one correct answer when someone asks if they should turbocharge or supercharge their BRZ...... “Yes!”
100% Agree. Everyone deserves mild/reliable boost!

Because I'm not pushing big boost, a "more efficient" larger turbo is not actually more efficient for me. This can be determined with compressor maps and/or looking at intake charge temps vs pressure.

The T518Z with ethanol, will easily clear 450hp crank/350whp. In fact, I do so on only about 10.5 psi. More boost than this goes into diminishing returns, and really should be done with a larger turbo, but I'm okay with the power I have!
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Old 06-04-2020, 04:39 PM   #41
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I don't need your approval to state anything. So you would control internet if you could? What a narcissistic idiot you are.
Nope, not at all, just delete troll posts from self admitted trolls.
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Old 06-04-2020, 05:22 PM   #42
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Actually that's on ACN91. Just a good tune. This is with a stock front pipe in place too.

Turbos don't have the parasitic loss of a supercharger, so the power difference is what the supercharger is eating, all else equal.
5.5 psi is just about 37% more than atmospheric pressure. But you are getting 50% more power than NA without any other mod. What a marvelous tune! Is CSG selling that setup and tune. I would get it and take my JRSC off for sure. Assuming you have a fully custom turbo setup, what is your header?

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100% Agree. Everyone deserves mild/reliable boost!

Because I'm not pushing big boost, a "more efficient" larger turbo is not actually more efficient for me. This can be determined with compressor maps and/or looking at intake charge temps vs pressure.

The T518Z with ethanol, will easily clear 450hp crank/350whp. In fact, I do so on only about 10.5 psi. More boost than this goes into diminishing returns, and really should be done with a larger turbo, but I'm okay with the power I have!
While you are here. Intake charge temps vs pressure, is this considered in your tune currently? Or you would consider it with bigger boost? I am asking since some of the heat soak complaints that I also had in the previous years could be related, I thought.

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