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Old Oct 27, 2008 | 05:33 PM
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Question BIG Turbo

Hey guys I recently came into pocession of a turbo off of a Cummins ISL (8.9L) it a Holeset but I'm not sure of the model. I was thinking bout using this on my Chevelle conversion, but I know its a pretty big turbo. I am just not sure if an LS1 will be able to spool it up. I know that on the Cummins they are doing upwards of 40psi of boost at around 2200rpm. I thought that at bout half the size that the increase in rpms might compinsate.

Any input would be much apperiacated.

Thanks
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Old Oct 27, 2008 | 08:32 PM
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Just through some quick research I think you might be looking at a Holset HE400 if it is a VG turbo.

Here is a site I found with a little bit more info.
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Old Oct 27, 2008 | 08:49 PM
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^ You forgot your link.

Post a picture of it and we can probably help you out some.
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Old Oct 27, 2008 | 09:02 PM
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Yeah you forgot your link, but its not a VG turbo. I was more wondering if anyone had any input on if its too big.
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Old Oct 27, 2008 | 09:09 PM
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get some measurements, or this thread is pretty worthless
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Old Oct 27, 2008 | 09:15 PM
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http://www.globalsourcingguide.com/D...008/WW/519.pdf

lol sorry


Anyway all holset turbos have a tag on them with the model number on it. Let us know what it is.
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Old Oct 27, 2008 | 09:19 PM
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Guys on turbomustangs.com or the theturboforums.com seem to have alot of info on those turbos.
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Old Oct 27, 2008 | 09:28 PM
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Thanks for the help. I will get some measurements in the morning and post em up tomorrow afternoon.
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Old Oct 28, 2008 | 11:48 AM
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you shouldnt have a problem spooling it. really all depends on your setup. i didnt see what motor you are planning on running.just put a boost friendly cam in there and a stall and you should be fine.
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Old Oct 28, 2008 | 06:46 PM
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Hey I found the tag on the turbo, it is a hx40w. It was hiding under a Cummins sticker. It has a 4" inlet and a 4" outlet. I have done just a little reading about them and they seem to be at least somewhat common on RX7s and Buttstangs, so I think that it will work fine on the LS1.
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Old Oct 28, 2008 | 06:57 PM
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I have a Cummins 8.3L (500ci) @ work and the Holset turbo on that thing looks smaller than the 76 I have on my car.
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