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High Boost and Torque, without NO2

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Old May 13, 2006 | 07:15 PM
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Default High Boost and Torque, without NO2

What's a good way to have a helluva bottom end out of boost, and that massive top end power, basically a great balance.

Should the car have some N/A style with moderate boost or run stage 2 cam advanced? Advance timing below boost and running richer in boost?

I was just wondering what ideas each of you have.

I'd like a car that's fast booth in and out of boost, with great torque figurez, something where the torque and hp peaks are close in range. (ex. 260hp/245 ft-lbs torque)
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Old May 13, 2006 | 07:23 PM
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turbo cars don't hustle until the turbo spools... thats just the nature of turbo. All you can do is get the turbo to spool faster.

Ways to spool a turbo faster are: smaller turbo, better turbo design (bearings and lubrication), higher compression (not gonna do a lot, and potentially dangerous), nitrous, and of course, more displacement.

Of those, the cheapest in the long run is a smaller turbo, but an appropriately sized turbo with better design is ideal.
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Old May 13, 2006 | 08:10 PM
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Originally Posted by white_n_slow
turbo cars don't hustle until the turbo spools... thats just the nature of turbo. All you can do is get the turbo to spool faster.

Ways to spool a turbo faster are: smaller turbo, better turbo design (bearings and lubrication), higher compression (not gonna do a lot, and potentially dangerous), nitrous, and of course, more displacement.

Of those, the cheapest in the long run is a smaller turbo, but an appropriately sized turbo with better design is ideal.
like the gt series turbo, with dual ball bearings?

If I had the money, I'd design a turbo that gives the benefits of a small and a large turbo, a turbo that's like 2 in one, something that would spool 2 compressor blades, the smaller blade spins faster than the larger blade, using a stepper setup similar to a centrifugal supercharger, 2 synchronized housings two outlets...

basically the smaller blade spins freely, and at a certain RPM or when the small blade loses efficiency, it releases that blade, captures the larger blade and spins that blade using the existing inertia for smooth flow, similar to clutch/torque converter technology... that's just some rough idea for a design. 2 blades and 2 housings.
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Old May 14, 2006 | 05:18 AM
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Originally Posted by InfiniteVTec
like the gt series turbo, with dual ball bearings?

If I had the money, I'd design a turbo that gives the benefits of a small and a large turbo, a turbo that's like 2 in one, something that would spool 2 compressor blades, the smaller blade spins faster than the larger blade, using a stepper setup similar to a centrifugal supercharger, 2 synchronized housings two outlets...

basically the smaller blade spins freely, and at a certain RPM or when the small blade loses efficiency, it releases that blade, captures the larger blade and spins that blade using the existing inertia for smooth flow, similar to clutch/torque converter technology... that's just some rough idea for a design. 2 blades and 2 housings.
thats called a twin turbo set up Honestly the numbers your trying to get are VERY easily acheived. Get your self an agressive turbo, make sure the hot side is something small, like .48. This is gonna give a huge power boost to midrange and if you got something like a 57trim t3to4e, it should hold wind all the way to redline, though the smaller exhaust housing will come back to haunt you. Now, if you want power right out the hole, your gonna need something smaller, the problem is when you go smaller the potential to reach the numbers your after become less and less, and you have to run more and more boost, which can lead to higher IATs which will work against power goals. You have to decide exactly whats your goals are though, and unfortunantly your dream of the perfect power band isnt gonna happen with a turbo.

Last edited by 2gr84u; May 14, 2006 at 05:25 AM.
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Old May 14, 2006 | 05:48 AM
  #5  
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Originally Posted by InfiniteVTec
like the gt series turbo, with dual ball bearings?

If I had the money, I'd design a turbo that gives the benefits of a small and a large turbo, a turbo that's like 2 in one, something that would spool 2 compressor blades, the smaller blade spins faster than the larger blade, using a stepper setup similar to a centrifugal supercharger, 2 synchronized housings two outlets...

basically the smaller blade spins freely, and at a certain RPM or when the small blade loses efficiency, it releases that blade, captures the larger blade and spins that blade using the existing inertia for smooth flow, similar to clutch/torque converter technology... that's just some rough idea for a design. 2 blades and 2 housings.
That's called sequential turbos and I've seen supras with that setup. It's
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Old May 14, 2006 | 08:05 PM
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I doubt there's ne one running a sequential setup on HAN
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Old May 14, 2006 | 08:15 PM
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When torque and hp are very close, usually it is because the head flows like shit.

Take a DSM for example. The head is a huge restriction and thus, dyno numbers are pretty close for torque and hp.

There are always trade offs when you modify for bigger power. Wake up from your fantasy world because you will not get low end and high end at the same time out of a Honda.
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