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DBW Throttle body database or swap info?

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Old Sep 25, 2023 | 11:47 AM
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Default DBW Throttle body database or swap info?

Checking to see if anyone has a database of DBW throttle bodies or info on what will swap?

Have an 05 LQ4 with an LS6 intake and stock truck TB, currently I'm pulling vacuum in upper RPM and want to switch out to a larger throttle body / intake. I don't know what DBW throttle body I can use or if anything is compatible with the TAC module I have. Most likely will have to swap to a 4 bolt type TB. Any help would be appreciated! Want to stay DBW.

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Old Sep 25, 2023 | 02:06 PM
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From my research there are no compatible upgrades with using that TAC module, except going to a larger 4 bolt throttle body like an LS3 and using the X-Link Adapter.
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Old Sep 25, 2023 | 02:14 PM
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I just looked around, and here is what I found in DBW TB's-
Gen III- (all 3 bolt)
78mm - All but 6.0 truck engines
80mm - 6.0 truck engines (you have either one of these 2)
Gen IV- (all 4 bolt)
87mm - all truck engines incl. 6.2
90mm - all car engines including LS7 (505HP)
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Old Oct 4, 2023 | 08:32 AM
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If it would clear the hood, a TBSS intake will outperform that LS6 manifold and use a 4 bolt t/b.
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