Generation IV External Engine LS2 | LS3 | LS7 | L92 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

MAP sensor on sheet metal intake?

Thread Tools
 
Search this Thread
 
Old Jun 12, 2025 | 06:36 PM
  #1  
Utinator's Avatar
Thread Starter
12 Second Club
5 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Dec 2017
Posts: 1,023
Likes: 215
From: San Antonio
Question MAP sensor on sheet metal intake?

I recently bought a cheapo "Sniper" style intake for LS3 heads. It has the ports on the under side of it for the PCV hoses. The previous owner said that there was a way to attach a hose to one of the ports and adapt it to a MAP sensor. Has anyone done this? I have only worked with stock intakes so far, so I don't know how MAP sensors get mounted to these sheet metal intakes. Any ideas or suggestions?
Reply
Old Jun 12, 2025 | 09:50 PM
  #2  
91 Z28's Avatar
TECH Fanatic
5 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Oct 2016
Posts: 1,581
Likes: 373
From: Armstrong BC
Default

Originally Posted by Utinator
I recently bought a cheapo "Sniper" style intake for LS3 heads. It has the ports on the under side of it for the PCV hoses. The previous owner said that there was a way to attach a hose to one of the ports and adapt it to a MAP sensor. Has anyone done this? I have only worked with stock intakes so far, so I don't know how MAP sensors get mounted to these sheet metal intakes. Any ideas or suggestions?
I had a similar intake for a few minutes on my car and what I ended up doing was plugging off the smaller holes and used the big one with like a 3/8 barb or so and ran a line to a vacuum block then connected everything up and it worked but the intake itself made this weird "humming" sound at a very specific cruise RPM
Reply
Old Jul 8, 2025 | 01:00 PM
  #3  
1988montecarloss's Avatar
TECH Resident
10 Year Member
Photogenic
Liked
Loved
iTrader: (6)
 
Joined: Nov 2011
Posts: 972
Likes: 139
From: maine
Default

throw that intake in the trash and get a stock ls3 intake
Reply
Old Jul 9, 2025 | 04:49 AM
  #4  
91 Z28's Avatar
TECH Fanatic
5 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Oct 2016
Posts: 1,581
Likes: 373
From: Armstrong BC
Default

Originally Posted by 1988montecarloss
throw that intake in the trash and get a stock ls3 intake
Couldn't agree more
Reply
Old Jul 9, 2025 | 10:19 AM
  #5  
Kfxguy's Avatar
TECH Veteran
5 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Apr 2017
Posts: 4,582
Likes: 758
From: Louisiana
Default

Originally Posted by utinator
i recently bought a cheapo "sniper" style intake for ls3 heads. it has the ports on the under side of it for the pcv hoses. The previous owner said that there was a way to attach a hose to one of the ports and adapt it to a map sensor. Has anyone done this? I have only worked with stock intakes so far, so i don't know how map sensors get mounted to these sheet metal intakes. Any ideas or suggestions?


why??
Reply
Old Jul 9, 2025 | 02:28 PM
  #6  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,289
Likes: 3,615
From: Central Cal.
Default

Originally Posted by Kfxguy
why??
Right. As long as he's been around here you'd think he'd know better...
Reply
Old Jul 31, 2025 | 05:04 PM
  #7  
Utinator's Avatar
Thread Starter
12 Second Club
5 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Dec 2017
Posts: 1,023
Likes: 215
From: San Antonio
Default

Originally Posted by G Atsma
Right. As long as he's been around here you'd think he'd know better...
Because I have watched too many Richard Holdener videos. LOL! It's going to be on the engine dyno, so it will be easy to swap out and run back-to-back. I'm hoping the Sniper-style intake will make more power and less torque, like in Richard's videos. I have duplicated his builds and results before. Now that I have a 6L80, I don't think I need that much torque. I can't get traction with the LS1, so this 418 is going to be challenging to say the least. I know, my car needs suspension work. I'll work on that later.

I did rig up a hose to a MAP sensor I took off a truck in the junkyard. I don't have any good pics of it right now. I'll try to remember to post one later, if it works.
Reply
Old Aug 1, 2025 | 12:58 AM
  #8  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,289
Likes: 3,615
From: Central Cal.
Default

Originally Posted by Utinator
Because I have watched too many Richard Holdener videos. LOL! It's going to be on the engine dyno, so it will be easy to swap out and run back-to-back. I'm hoping the Sniper-style intake will make more power and less torque, like in Richard's videos. I have duplicated his builds and results before. Now that I have a 6L80, I don't think I need that much torque. I can't get traction with the LS1, so this 418 is going to be challenging to say the least. I know, my car needs suspension work. I'll work on that later.

I did rig up a hose to a MAP sensor I took off a truck in the junkyard. I don't have any good pics of it right now. I'll try to remember to post one later, if it works.
If you watched any more than 5 minutes of any Holdener Sniper dyno test you'd know he HATES them. They are CRAP.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Aug 1, 2025 | 08:44 AM
  #9  
Utinator's Avatar
Thread Starter
12 Second Club
5 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Dec 2017
Posts: 1,023
Likes: 215
From: San Antonio
Default

Yeah, I got the impression he doesn’t really like them, but they consistently make 20+hp more than stock intakes. I wouldn’t use one on a stock cube motor, but that’s not what I have.
Reply
Old Aug 1, 2025 | 09:26 AM
  #10  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,289
Likes: 3,615
From: Central Cal.
Default

Originally Posted by Utinator
Yeah, I got the impression he doesn’t really like them, but they consistently make 20+hp more than stock intakes. I wouldn’t use one on a stock cube motor, but that’s not what I have.
They gain ONLY at the top end because of ridiculously short runners. They LOSE hat much or more below that.
They're a one trick pony with more disadvantages than benefits. Yeah, it screams up top but runs like crap everywhere else.
Broaden your horizons
Reply
Old Aug 2, 2025 | 11:05 AM
  #11  
Utinator's Avatar
Thread Starter
12 Second Club
5 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Dec 2017
Posts: 1,023
Likes: 215
From: San Antonio
Default

Yeah, I'd be ok with that. This engine is going to make more torque than I can use anyway. The short runners will help to manage the torque. I don't think this intake will fir under my hood, so I would probably have to get something else if I decide to use a short runner intake. I'll probably start off with the LS3 intake. If it gets too squirrelly, I can swap to a shorter runner.
Reply




All times are GMT -5. The time now is 05:41 PM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE