1520 BHP, How's it done?


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Someone else said it's probably bored and stroked, and you're right, it most likely is, but it may not be as revving a bored and stroked motor that high is not really something you want to be doing, especially in a boosted application. I'll bet its pushing about 38-45 psi out of that turbo and probably using water injection, alcohol injection, or nitrous to cool down the intake charge to prevent predetonation.

Boring an engine won't affect it revving any higher.

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It's also a brand name which is accepted as a name for the type of product though.

See:

Sellotape (brand of sticky-tape)

Pritt Stick (brand of glue-stick)

a better one : kleenex (tissue)

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1520 BHP :rolleyes:

We didn't even see the results. camera just pointed at the screen and some guy yelled it. :rofl:

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^

Superchargers are less mainstream because attaching them to engines is a lot harder than addiing a small turbo. turbos can also give more power, but superchargers dont have lag times if im correct. depending whether u have a root or screw supercharger u will have different power available.

i wud still rather have 2 turbos over a supercharger.

A supercharger is no more difficult to add than a turbo unless the supercharger was designed for a specific make and model of car, then yes. Superchargers don't have lag but there are different kinds of SC's that offer boost differently. True, they take power from the crank to generate power and there are 2 different ways they can work. Centrifugal generates boost at higher RPM's and Positive Displacement superchargers offer boost at a low RPM but do not generate more boost as RPM's are increased. With a Positive Displacement SC, if you generate 8psi at 2,000 RPM's, you will continue to generate 8psi up until redline.

Turbos sometimes do not have lag. If you throw a large turbo on an engine with a low displacement, you will encounter lag waiting for the turbo to spool up boost. You can throw a smaller turbo on an engine with a decent amount of displacement and generate boost quickly, but you will be limited to the amount of boost you can generate based upon the size of the turbo. That is why you see a lot of twin turbo applications on a lot of cars. You can take a couple smaller turbos and generate a nice amount of boost with them at low RPM's and experience little or no lag. The larger the turbo, the more boost capabilities but more lag unless the engine is powerful enough to spool boost in the turbo quickly and efficiently.

Turbo's tend to have a higher rate of failure though when compared to a supercharger. Twin screw SC's are a lot more efficient than roots because of the way it's generated. The screws offer tighter regulation of the air that is pumped through.

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I would say a single, large turbo. NOS is probably involved and yes you can hear NOS. There is a valve called a purge valve on any high-grade NOS system. It is used to purge the lines of all air except for the NOS. It's very loud, but it's usually only once. I'm not saying that that is what you heard, but you can hear it in some setups. He might even be using nitro-methane fuel. Something like the equivalent of 160 octane (most GT-class races use 114 octane race fuel).

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