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03-28-2020, 09:57 PM
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#1 |
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Registered User
Join Date: Mar 2013
Location: Missouri City, Tx
Posts: 321
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TBSS vacuum ports
Hey guys, I need some help.. this is my first swap and I have no idea what I’m getting into. I have a 6.0/4l80 from a Denali, I replaced the intake from a TBSS. I’ve ordered a adapter plate to use the throttle body from the 6.0 intake. What does these connect to?
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1965 Short Fleet http://67-72chevytrucks.com/vboard/s...d.php?t=637478 1983 Short Fleet (Under construction for my 13 year old son) 2008 GMC Denali 2012 Harley Roadglide Follow me on Instagram: Ru_django 
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03-28-2020, 11:17 PM
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#2 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,671
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Re: TBSS vacuum ports
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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03-28-2020, 11:48 PM
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#3 |
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Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,671
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Re: TBSS vacuum ports
I tried to find a good layout but not having any luck
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver Last edited by mongocanfly; 03-28-2020 at 11:54 PM. |
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03-29-2020, 08:32 AM
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#4 |
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Registered User
Join Date: Mar 2013
Location: Missouri City, Tx
Posts: 321
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Re: TBSS vacuum ports
Thanks Mongo. No, that's not the brake booster port. I know I could have taken a better pic. it's the EVAP purge valve port. I would like some of the guys who has the same set up as me to chime in, please help I'm loosing sleep thinking about this. lol. i see a lot of guys has a port behind or on the side the throttle body, mines don't. I have 2 at the bottom.
__________________
1965 Short Fleet http://67-72chevytrucks.com/vboard/s...d.php?t=637478 1983 Short Fleet (Under construction for my 13 year old son) 2008 GMC Denali 2012 Harley Roadglide Follow me on Instagram: Ru_django
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03-29-2020, 11:19 PM
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#5 |
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Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,671
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Re: TBSS vacuum ports
just curious ..but why did you change the intake?... I'm guessing the little extra hp
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver Last edited by mongocanfly; 03-29-2020 at 11:35 PM. |
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03-29-2020, 11:26 PM
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#6 |
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Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,671
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Re: TBSS vacuum ports
found this...he says they capped the evap port and removed it from the tune...
http://www.silveradoss.com/forums/to...e-swap-how-to/ I'm having internet issues, but google tbss intake swap...it brings up a bunch of right ups and videos on it
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver Last edited by mongocanfly; 03-29-2020 at 11:34 PM. |
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03-30-2020, 08:13 AM
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#7 | |
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Registered User
Join Date: Mar 2013
Location: Missouri City, Tx
Posts: 321
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Re: TBSS vacuum ports
Quote:
__________________
1965 Short Fleet http://67-72chevytrucks.com/vboard/s...d.php?t=637478 1983 Short Fleet (Under construction for my 13 year old son) 2008 GMC Denali 2012 Harley Roadglide Follow me on Instagram: Ru_django
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03-30-2020, 06:48 PM
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#8 |
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Registered User
Join Date: Nov 2012
Location: 9
Posts: 862
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Re: TBSS vacuum ports
I dont know what the ports are on your TB, Ive not personally dealt with a Gen 3 TB but I think alot of them had a fresh air PCV port. If you can confirm that yours does have a fresh air port before the throttle blade then you can use that as your PCV fresh air intake.
I attached a diagram of roughly how things should go. Cap any unused ports. If you leave the Gen 4 injectors on it you will need to update your tune to reflect those changes, that might be a big change over stock depending on what stock was and what the new ones are. |
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