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Old 07-31-2019, 06:15 AM   #1
3.4 grape of wrath
 
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Intake manifold mods

I wanted to upgrade from my 65mm throttle body to my 75mm, LS1 throttle body on my intake manifold but realized, I had a bottle neck in the intake. The intake has a goose neck after the throttle body and has a circumference of only 68mm. So I decided to remove both issues and install a 3 1/2'' pipe to free things up. Here are some pics of the stock manifold before surgery.
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File Type: jpg Side View Stock.jpg (87.2 KB, 14 views)
File Type: jpg Stock Front.jpg (81.4 KB, 13 views)
File Type: jpg Stock Bottom.jpg (70.6 KB, 13 views)
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Old 07-31-2019, 06:17 AM   #2
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Some pics after surgery.
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File Type: jpg Bottom Hacked.jpg (90.1 KB, 14 views)
File Type: jpg Chopped.jpg (41.9 KB, 9 views)
File Type: jpg Cut Away.jpg (82.6 KB, 9 views)
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TURBO 3.5 LITER
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8.021 @ 86.38 1/8 MILE
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Old 07-31-2019, 06:19 AM   #3
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Removed parts from intake.
Attached Images
File Type: jpg Cutoffs.jpg (95.3 KB, 14 views)
File Type: jpg Removed pieces.jpg (95.7 KB, 15 views)
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94 CAMARO
TURBO 3.5 LITER
12.573 @ 107.29 1/4 MILE
8.021 @ 86.38 1/8 MILE
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Old 07-31-2019, 06:32 AM   #4
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Test fit for the 3 1/2'' pipe.
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File Type: jpg Tube fit.jpg (95.6 KB, 13 views)
File Type: jpg Cut to Size.jpg (90.2 KB, 13 views)
__________________
94 CAMARO
TURBO 3.5 LITER
12.573 @ 107.29 1/4 MILE
8.021 @ 86.38 1/8 MILE
BEST 60' 1.781

Last edited by 3.4 grape of wrath; 07-31-2019 at 06:38 AM.
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Old 07-31-2019, 06:37 AM   #5
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Comparison pics of the 65mm and 75mm throttle bodies and the adapter plate for the 75mm throttle body.
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File Type: jpg 65MM and 75MM.jpg (84.2 KB, 12 views)
File Type: jpg LS1 TB Adapter plate.jpg (88.8 KB, 9 views)
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TURBO 3.5 LITER
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8.021 @ 86.38 1/8 MILE
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Old 08-01-2019, 05:43 AM   #6
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Finished welding adapter plate to pipe and pipe to plenum. Ready to install.
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File Type: jpg 001.jpg (85.9 KB, 21 views)
File Type: jpg 002.JPG (81.6 KB, 21 views)
File Type: jpg 003.jpg (80.7 KB, 21 views)
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TURBO 3.5 LITER
12.573 @ 107.29 1/4 MILE
8.021 @ 86.38 1/8 MILE
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Old 08-06-2019, 06:03 AM   #7
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Intake is installed and car is running. I had some idling issues at first but a little tuning and all is good. I have some more tuning to do now before going wot.
Attached Images
File Type: jpg 11.jpg (87.8 KB, 18 views)
File Type: jpg 22.jpg (85.8 KB, 15 views)
File Type: jpg 33.jpg (80.6 KB, 17 views)
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TURBO 3.5 LITER
12.573 @ 107.29 1/4 MILE
8.021 @ 86.38 1/8 MILE
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Old 08-06-2019, 10:19 AM   #8
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Wow, looks awesome!
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Old 08-06-2019, 01:55 PM   #9
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Agreed, came out good
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Old 08-06-2019, 06:58 PM   #10
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whew, nice job. looks very nice
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Old 08-06-2019, 08:19 PM   #11
3.4 grape of wrath
 
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Thanks for the compliments. I can't take credit for the welding though, a good friend of mine, who is a welder by trade, helped me out.
__________________
94 CAMARO
TURBO 3.5 LITER
12.573 @ 107.29 1/4 MILE
8.021 @ 86.38 1/8 MILE
BEST 60' 1.781

Last edited by 3.4 grape of wrath; 08-31-2019 at 08:15 PM.
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Old 08-15-2019, 11:00 AM   #12
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That is the boldest and most beautiful thing i've seen done here! Awesome.
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Old 08-16-2019, 05:24 AM   #13
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Quote:
Originally Posted by ar0ck View Post
That is the boldest and most beautiful thing i've seen done here! Awesome.
Thanks, I'm still tuning the car but been busy lately with other things.
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94 CAMARO
TURBO 3.5 LITER
12.573 @ 107.29 1/4 MILE
8.021 @ 86.38 1/8 MILE
BEST 60' 1.781
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