Forced Induction Superchargers | Turbochargers | Intercoolers

Feed size for TC78

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Old Mar 12, 2010 | 10:49 PM
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Default Feed size for TC78

whats the recommended feed size? I have both -3 and -4 feeds laying around so wondering which would be best. I was just planning -3 since its what I use on pretty much every t4 turbo i've ever done.
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Old Mar 13, 2010 | 04:24 AM
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interested in this too.....
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Old Mar 13, 2010 | 12:32 PM
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I run -3 brake line on these turbos. Never had a problem or had to use a restrictor.
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Old Mar 13, 2010 | 01:26 PM
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the instructions that came with mine said to use either -4 or -6, i am using -6, or atleast that is what i have ready to go on.
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Old Mar 13, 2010 | 01:54 PM
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I use feed -4 and -12 return no problems
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Old Mar 13, 2010 | 04:55 PM
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My return will be a -10. Didn't come with any "instructions" so to speak. Just came in a box with the turbo in it and nothing else.

So sounds like if I go -3 or -4 I'll be fine either way?
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Old Mar 13, 2010 | 07:48 PM
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guys,
ive used many of those TC turbonetics units, with big oil pressure too (75 psi idle ,and like 100+ psi through traps)
Ive found 3 things that help

1. always run the little turbonetics filter on oil inlet, as supplied from turbonetics.
2. always run large as possible drain, no kinks etc
3. always run big as possible engine / crankcase breather...
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Old Mar 14, 2010 | 04:03 PM
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forced inductions will tell you -4 and -10. i used a -4 and -8 on my return with no problems.
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Old Mar 14, 2010 | 06:01 PM
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i need to correct my last post, i double checked and the instructions said either -3 or -4 for feed and a minimum of 3/4" to 1" return. i checked my -10 return and it looks like 7/8", so it should be good
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Old Mar 15, 2010 | 04:21 PM
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Originally Posted by smokinz
i need to correct my last post, i double checked and the instructions said either -3 or -4 for feed and a minimum of 3/4" to 1" return. i checked my -10 return and it looks like 7/8", so it should be good
-12 is 3/4" , you measuring inside diameter ?
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Old Mar 16, 2010 | 09:49 PM
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We always use -4 feed and -10 drain.
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