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3 bolt throttle body to 4 bolt intake

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Old May 17, 2021 | 09:33 AM
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Default 3 bolt throttle body to 4 bolt intake

Can someone confirm if this adapter will work with a stock ls1 cable driven throttle body on a 4 bolt 102mm intake?

ICT says no, but BTR is trying to sell me an intake and says yes.

https://www.jegs.com/i/UNKNOWN/335/5...r%20Categories
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Old May 17, 2021 | 09:56 AM
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Originally Posted by BCNUL8R
Can someone confirm if this adapter will work with a stock ls1 cable driven throttle body on a 4 bolt 102mm intake?

ICT says no, but BTR is trying to sell me an intake and says yes.

https://www.jegs.com/i/UNKNOWN/335/5...r%20Categories
I think I see the issue. The adapter is for a DBW TB, which might be different than a DBC TB.
What reason . does ICT give for the DBC not working?
You need to ask the "whys", not just whether or not it works.
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Old May 17, 2021 | 10:26 AM
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Originally Posted by G Atsma
I think I see the issue. The adapter is for a DBW TB, which might be different than a DBC TB.
What reason . does ICT give for the DBC not working?
You need to ask the "whys", not just whether or not it works.
Hard to get any answers these days. Holley can’t even tell me if my intake I ordered will ship. After an hour on hold I get the well we got some in the warehouse today, but not sure if it’s enough to cover back orders. Hopefully you get a tracking number today otherwise it’s September when we expect more. Can you tell me where I’m at on the back orders? No you just have to hope you get a tracking number. Lol wtf? So now I’m looking for other options. Aluminum cathedral port intakes that fit a 3 bolt drive by cable throttle body and for under a stock hood are hard to come by lol
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Old May 17, 2021 | 11:46 AM
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Why not a 4 bolt 92mm TB? Your not seriously considering running a stock 78mm TB on a 102 intake are you?
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Old May 17, 2021 | 12:08 PM
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Originally Posted by 01CamaroSSTx
Why not a 4 bolt 92mm TB? Your not seriously considering running a stock 78mm TB on a 102 intake are you?
Well that certainly could end up what I have to do. I’m boosted at 20 psi and broke my ls6 intake. I need an aluminum intake that fits under my hood.

I originally ordered the Weiand, but can’t even get a straight answer on when I may get it. The BTr equalizer kills power everywhere under 6500, but they showed a dyno where the stock ls1 throttle body on the equalizer didn’t lose as much down low without sacrificing much up top in a boosted application. Now I’m just looking to find out what adapter they used to do so and can’t get a straight answer lol.

Im running a 377 ls3 block with cathedral port top end and 20 psi via Procharger. I can give up a little down low, but that btr kills low end more than I’d like to throw away.

Before it’s all said and done I may be switching heads, intake, throttle body, and injectors just to get running. That turns an intake swap into a several thousand dollar ordeal.
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Old May 17, 2021 | 02:59 PM
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Okay I see now. The BBK is another option but I see they're not in stock either.
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Old May 17, 2021 | 03:37 PM
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Originally Posted by 01CamaroSSTx
Okay I see now. The BBK is another option but I see they're not in stock either.
I totally understand the shortage and out of stock items. I do appreciate straight honest answers regardless if it hurts my feelings or not...LOL. I've got some thinking to do about my long term direction vs what will get me running right now. My engine/blower/fuel system combo isn't going to handle my long term goals which are a year or two off. At the same time wanting to get running and enjoy the car this summer without spending a ton of money on parts that I may not use later.

Just got off the phone with Holley. They were suppose to get some of the Weiand intakes in Friday, but they don't know if they did or not so they can't give me an ETA. They did send my EGR block off plate for the Weiand intake right away though...LOL. Was really hopeful to get the Weiand since it drops right onto my current setup and doesn't lose power anywhere on the curve vs the LS6 I had. Also wasn't a big investment if I change the combo in a year or two.

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Old May 17, 2021 | 05:17 PM
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Probably lack of IAC port provision. You need this: https://www.jegs.com/i/ICT-Billet/335/551361/10002/-1

But honestly, I doubt the smaller TB will help improve low end all that much (at least comparing a 92mm to a 78mm). Larger certainly helps on the top end, but the port cross-section and runner length should play a dominate role in the low end torque.

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Old May 17, 2021 | 05:29 PM
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I've always thought with as much boost as I'm running loosing a little low end wouldn't hurt much. Doing some research that BTR intake loses every where under 6000 and doesn't really draw equal with a stock intake until about 6500 rpm. I shift at 7000-7200 rpm. Ten to 15 rwhp/torque down low would be nothing to give up, but we are talking 40+ hp/tq every where under 5000 rpm and still loses to an ls6 up to 6000. That's a lot to give up for my use. It's so much I'd probably need to change the converter from my 3400 to at least a 3800. That's not really what I want in a street driven toy with drag strip passes secondary as an occasional hobby at this point.

Tough decision. Might come down to buying what is in stock and fits under my hood unless I want the car to sit all summer. I'll think on it for a day or so.
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Old May 17, 2021 | 06:33 PM
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I'm not necessarily a fan of Speedmaster products, but their cast manifold did fairly well down low (and was with a 102mm). Have you looked for the BBK or Weiand used? Other than needing new gaskets can't imagine a likely problem with going that route if you can find one.
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Old May 17, 2021 | 11:58 PM
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Can you share more on the intake failure?
have seen ls6 intakes take a lot of boost.
Option: can a burst panel be installed? They are/used to be popular with the nitrous crown in the event of a backfire. I run a beck sheet metal and have one as a safety in case something goes boom.
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Old May 20, 2021 | 10:52 AM
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FAST sells a 102 to 78mm adapter
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Old May 20, 2021 | 01:44 PM
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Originally Posted by LilJayV10
FAST sells a 102 to 78mm adapter
I ended up going with the BTR equalizer 1 with the fast adapter.
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