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DBW on LS6 intake manifold

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Old Jul 31, 2022 | 03:13 AM
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Default DBW on LS6 intake manifold

Hello.
im building a racecar with strict regulations.

we have to use ls1 org parts but I can pick parts from different engines.

We will fit an ls6 intake and we want to use DBW TB, org is 75mm so my question is, is there any other 75 TB with DBW?
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Old Jul 31, 2022 | 09:17 AM
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This should be moved to Gen III External and you may get some more feedback posting this in a different category but the 2003 Silverado 1500 is drive by wire and so is the 05 Chevy Tahoe which I believe is 78mm. There's probably more out there but at least it's a start.
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Old Jul 31, 2022 | 10:49 AM
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Not sure if it helps but the 01+ c5 uses the LS6 intake and is DWB as well.. I think its the standard 78mm though and it sounds like you are limited to 75mm?
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Old Jul 31, 2022 | 11:00 AM
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In Australia the VZ commodores with LS1s also ran a DBW throttle body ~75-78mm on the LS6 intake which looks to be different from the c5/truck ones.
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Old Jul 31, 2022 | 11:04 AM
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Originally Posted by 1bdbrd
Not sure if it helps but the 01+ c5 uses the LS6 intake and is DWB as well.. I think its the standard 78mm though and it sounds like you are limited to 75mm?
Thanks! that helps a lot. As long as it’s fitted on an ls1 from factory it’s ok to use. In that case i I get away with a 78mm TB with DBW.
Do you know the manufacture number?
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Old Jul 31, 2022 | 11:07 AM
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Originally Posted by Bad346
In Australia the VZ commodores with LS1s also ran a DBW throttle body ~75-78mm on the LS6 intake which looks to be different from the c5/truck ones.
ohh. So the c5/truck ones are the same 78mm?
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Old Aug 2, 2022 | 11:28 PM
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https://www.gmpartsonline.net/oem-pa...UtN2wtdjgtZ2Fz

hopefully that copy and paste works from my iPad but that takes you to the gm listing for the corvette throttle body. So this spec series, what cam are you running?
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Old Aug 3, 2022 | 05:25 AM
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Originally Posted by 1bdbrd
https://www.gmpartsonline.net/oem-pa...UtN2wtdjgtZ2Fz

hopefully that copy and paste works from my iPad but that takes you to the gm listing for the corvette throttle body. So this spec series, what cam are you running?
thanks! The link works fine 👌
this cam came with the motor, i haven’t identified it yet.
Did ls1 come with different cams?





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Old Aug 3, 2022 | 09:35 AM
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Originally Posted by Thoren
thanks! The link works fine 👌
this cam came with the motor, i haven’t identified it yet.
Did ls1 come with different cams?
There were about 4 with very similar specs, but only one available now, and shares specs with the LQ9/late LQ4 cam-
196/201,.467/.479, 116LSA
Part # 12561721
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Old Aug 3, 2022 | 10:43 AM
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Originally Posted by Thoren
thanks! The link works fine 👌
this cam came with the motor, i haven’t identified it yet.
Did ls1 come with different cams?


I was kinda tired when I replied last night and for some reason thought the gto ls1 got the 01 ls6 cam but I then remembered that was in the ls2 lol.
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Old Aug 4, 2022 | 01:42 AM
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Originally Posted by Thoren
ohh. So the c5/truck ones are the same 78mm?
I'm not real sure as c5s and chev trucks aren't really that common here. The ones Holden uses are Hitachi brand I believe and look like this.


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Old Sep 15, 2022 | 02:09 PM
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Originally Posted by Bad346
I'm not real sure as c5s and chev trucks aren't really that common here. The ones Holden uses are Hitachi brand I believe and look like this.


thanks! Late reply but I’ve just ordered one 👍
the reason I want DBW is to get the “blip” function on my sequential gearbox.
thx for all the help 😁
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Old Nov 5, 2022 | 02:43 PM
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The TB is here and I’m wiring my harness for the engine..
does anyone have pinout of the TB connector or know where I can find it?
// Joel
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