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Omega Help Area => Omega General Help => Topic started by: GastronomicKleptomaniac on 03 July 2025, 13:29:58

Title: Plugging SAI manifold holes
Post by: GastronomicKleptomaniac on 03 July 2025, 13:29:58
Stripped the 3.0 for the project.

Currently mid work and removing SAI system. Rather than using a plumbing fitting on the pipe, can the holes be plugged into the manifold?

Haven't looked closely how it's all attached but just trying to neaten everything up so getting rid of unnecessary bits would be ideal.
Title: Re: Plugging SAI manifold holes
Post by: Doctor Gollum on 03 July 2025, 14:46:51
Use 3.2 manifolds.

The pump/wiring can potentially be relocated either out of sight or cut right back with a suitable resistor
Title: Re: Plugging SAI manifold holes
Post by: GastronomicKleptomaniac on 03 July 2025, 16:54:11
Use 3.2 manifolds.

The pump/wiring can potentially be relocated either out of sight or cut right back with a suitable resistor

That's my last option but I'm trying not to spend any more than I need to!
Title: Re: Plugging SAI manifold holes
Post by: Doctor Gollum on 04 July 2025, 05:15:58
It's the tiniest solution but not the only one :y
Title: Re: Plugging SAI manifold holes
Post by: TheBoy on 04 July 2025, 09:35:42
3.2 manifolds will slightly improve power, as they are less restrictive.  You will still need to mount the EGR, so keep the 3.0 plenum and keep the EGR plugged in, just make sure it's blanked.  Can't remember how much (5mm?) but the 3.0l downpipes need a bit chopped off to fit 3.2 manifolds.

But if you want to keep the 3.0 manifolds, yes, they can be plugged anywhere.
Title: Re: Plugging SAI manifold holes
Post by: GastronomicKleptomaniac on 04 July 2025, 09:42:51
Cheers both.

On further investigation, both the current and new manifolds appear to be solid and blank off the holes where I expected the SAI jets to enter the manifold area. Am I being really dozy? I can't see any diversion of the hole other than straight through to the gasket, but then my attention to detail is lacking.
Title: Re: Plugging SAI manifold holes
Post by: Doctor Gollum on 04 July 2025, 12:30:34
It's the tidiest solution but not the only one :y
Poxy AI retards