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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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200 Posts
Discussion Starter #1
Does anyone have compressor map or technical data on the super HX30? The Super is a T3 flange. The Garrett is T25. The ISB170 stock manifold is T25 I believe. The Super would require an adapter thus pushing turbo down closer to the starter or expensive steed speed exhaust manifold. Just trying to figure out other options. Or leave the stock HY30W and add compound to it. Looking for the next summer project.
 

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Maps for any of the Holset turbos aren't too common and the Super HX30W would probably be even more scarce. Your current HY30W has compressor wheel that is 42x73 and the turbine is 58x52 with a 7 cm2 housing. A Super 30 has a 46x78 compressor wheel and a 65x52 turbine in a 6 cm2 housing. If you were planning twins I'd think your current turbo would do OK and you wouldn't change the exhaust manifold unless you need the turbo in a different position. If you wanted to do a Super as a stand alone single you could take a 24 valve Dodge manifold or a common rail manifold and chop off 2 cylinders. There also may be a T3 manifold for the round port 4 cylinder head.
 

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Disco potato is a turbo for low boost and high rpm ricers. It sucks for diesels.

There are no official maps for the HX30 Super. But me and some other members worked out the capacity limits a few years back. I've found internet search engines to be better at searching this site than it's own search bar.
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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200 Posts
Discussion Starter #5
Ordered Super 30. I’ll figure out exhaust manifold once I get the turbo in. Thanks
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
Joined
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200 Posts
Discussion Starter #8
Are all Super HX30 made in the Wuxi Holset China factory?
 
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