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Turbocharger mounting angle

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Old Jun 25, 2015 | 08:51 AM
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Default Turbocharger mounting angle

I'm working on a '55 Chevrolet turbo project and I'm curious if it's ok to mount the turbo at an angle rather than horizontal. Will it affect turbo oiling? If an angle is ok is there a max angle from horizontal that's safe?

Turbo is a BW S480 billet wheel from Forced Inductions and the engine is a 2004 LQ9.

This is my first '55 and also my first turbo car. I'm trying to package it to include vintage air conditioning and I'm running out of space. I was really kind of surprised at the lack of space, I always thought of these cars as big but that's not the case. Some angle in the mount would give me a better angle for the downpipe and some clearance on the AC compressor.
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Old Jun 25, 2015 | 03:09 PM
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30* is the general rule for a journal bearing turbo.
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Old Jun 25, 2015 | 04:37 PM
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Originally Posted by Forcefed86
30* is the general rule for a journal bearing turbo.
I thought it was 14*?
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Old Jun 25, 2015 | 04:50 PM
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30 sounds like a lot.

It'll probably work ok, but expect a bit of smoke out the exhaust
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Old Jun 25, 2015 | 06:34 PM
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Corky bells book says no more than 30* I believe. Just looked on Garretts website and it says +/- 15* as you say.
Attached Thumbnails Turbocharger mounting angle-30-degrees.jpg  

Last edited by Forcefed86; Jun 26, 2015 at 09:49 AM.
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Old Jun 25, 2015 | 07:33 PM
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Default Turbocharger mounting angle

Originally Posted by Forcefed86
Corky bells book says no more than 30* I believe. Just looked on Garretts website and it says +/- 15* as you say.
I'm sure it varies from one manufacturer to another. I would say 20* is a happy medium.
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Old Jun 25, 2015 | 08:32 PM
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Thanks guys

I emailed Forced Inductions too, I'll post the reply when I get it
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Old Jun 25, 2015 | 09:11 PM
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Unlimited-depending on the turbo.

If its an off the shelf journal or ball bearing turbo, keep it under 15.

http://www.turbobygarrett.com/turbob...il_water_lines


If its an Oil-less BB or AirBearing turbo, you can literally mount it in any orientation.

http://compturbo.com/spotlights/oil-less

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