upgraded compressor wheel, what does it do?
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Joined: Dec 2002
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From: louisiana
upgraded compressor wheel, what does it do?
Just wondering what an upgraded compressor wheel on a turbo would do? I mean both turbos I've gotten for my rx7 turn out to be upgraded turbo's but not hybrid. I mean its got the same housing as the stock turbo but instead of 5 or 6 fins on the stock turbo it has 8. Any help would be great! Thanks.
this might get yalls attention 
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Joined: Jul 2001
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From: Birmingham, AL
An upgraded compressor wheel is more efficient than the stock compressor wheel. Usually boost drops off with the stock compressor wheel around 5K RPM. This is because the compressor wheel cant keep up with the engine. The efficiency starts to fall off.
When you upgrade the comrpessor wheel, this compresses more air volume depending on the boost level that you run. The more volume the compressor puts out, the more power you can make with the turbo.
Bryan
BNRsupercars@aol.com
When you upgrade the comrpessor wheel, this compresses more air volume depending on the boost level that you run. The more volume the compressor puts out, the more power you can make with the turbo.
Bryan
BNRsupercars@aol.com
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From: Kicking down doors in a neighborhood near you
a hybrid turbocharger, (a common one is the t3/t4) is a combination turbo. What they did was take the turbine (hot side) of a small turbo, bolt on the bearing housing, then they bolted on the compressor (cold side) of a bigger turbo.
All turbos have an operating range and you don't want to spin them faster than that to put them out of the range. Ok, now, take that, and consider this. A small turbo spools up (comes up to speed) faster than a larger turbo. So, on the same engine at 3300 RPMs, a small turbo will start spinning sooner and be spinning faster than a bigger turbo. The down side is that the small turbo will max out sooner. When buying a turbocharger, it is a compromise based on what turbo will most closely fit the engine performance. Enter the hybrid turbo. It is usually made from the mixing of parts. Take a small turbine and a larger compressor, like a T3 turbine and T4 compressor, and now you have a turbine that can spool up quicker than, and still compress air through a wider range of the engine RPM.
All turbos have an operating range and you don't want to spin them faster than that to put them out of the range. Ok, now, take that, and consider this. A small turbo spools up (comes up to speed) faster than a larger turbo. So, on the same engine at 3300 RPMs, a small turbo will start spinning sooner and be spinning faster than a bigger turbo. The down side is that the small turbo will max out sooner. When buying a turbocharger, it is a compromise based on what turbo will most closely fit the engine performance. Enter the hybrid turbo. It is usually made from the mixing of parts. Take a small turbine and a larger compressor, like a T3 turbine and T4 compressor, and now you have a turbine that can spool up quicker than, and still compress air through a wider range of the engine RPM.
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From: n
Originally posted by OneBadCynos
what are the down sides of hybrid turbos
what are the down sides of hybrid turbos
You can bore out the turbine side and run a larger turbine wheel, but for the same price you could go full-bore turbo upgrade for that kinda money.
-Ted
