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Brevin

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Gotta love sales jargon. When something sounds too good to be true... Well you know what they say.
I’m not a salesman but I do have a shop. Thousands of examples out there now in just a few years. I’m one of them. Don’t take my word for it! Just ask anyone else including the major tuners and shops and they’ll say the same thing :)
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CobaltFilly

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CobaltFilly

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My vote is Coyote built with a Procharger @NightmareMoon

I am still debating where to go with this car once she is "good enough" on track and needs more power...or blows her motor (very unlikely). Procharger is a top choice for me.
 

80FoxCoupe

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I’m not a salesman but I do have a shop. Thousands of examples out there now in just a few years. I’m one of them. Don’t take my word for it! Just ask anyone else including the major tuners and shops and they’ll say the same thing :)
If y'all like it, that's all that matters.
 

80FoxCoupe

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My vote is Coyote built with a Procharger @NightmareMoon

I am still debating where to go with this car once she is "good enough" on track and needs more power...or blows her motor (very unlikely). Procharger is a top choice for me.
He already bought the GSS.
 

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CobaltFilly

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K4fxd

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Really ? IF xx horsepower with 12:1 requires 8lbs of boost, and the same engine with the same xx horsepower but with 9.5 requires 12lbs of boost, how exactly is 9.5 easier on parts ?
It's the way the pressures in the cylinder develop. It's the reason OEM's use lower compression on supercharged cars.

@engineermike can explain it better.
 
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NightmareMoon

NightmareMoon

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engineermike

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Really ? IF xx horsepower with 12:1 requires 8lbs of boost, and the same engine with the same xx horsepower but with 9.5 requires 12lbs of boost, how exactly is 9.5 easier on parts ?
I can explain this if it’s a legitimate question.
 

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WildHorse

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static is static, dynamic is dynamic. Common knowledge since WWII.
so no need to explain. more boost to achieve the same xx horsepower
is more strain on parts.

In conclusion, I'm by no means talking about 30 psi @ 12:1 vs 30 psi @ 9:1
 

engineermike

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more boost to achieve the same xx horsepower
is more strain on parts.
Not exactly. High boost and low compression has lower peak cylinder pressure, lower stress, and lower peak in-cylinder temps than low boost and high compression at the same power level. It’s an interesting thermodynamic kinematic relationship.
 

Angrey

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Not exactly. High boost and low compression has lower peak cylinder pressure, lower stress, and lower peak in-cylinder temps than low boost and high compression at the same power level. It’s an interesting thermodynamic kinematic relationship.
With some underlying assumptions about adequately cooling the intake charge, etc.
 

Angrey

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Only the temperature part. Peak cyl pressures are still lower even without intercooling.
But it would get wonky on how much boost you'd have to run to equivocate based upon fuel quality and knock. Boosting to the moon on low compression is safer, but if you tried it with no intercooling I'd imagine you'd run into knock quite early (on lesser fuels). So you'd have to run even more boost, which would make the problem even more.
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