sewing machine effect??
Thread Starter
Joined: Dec 2003
Posts: 2,152
Likes: 0
From: Virginia Beach, Va
sewing machine effect?? i installed my MTI h/c package last weekend. i must say the sewing machine sound is really loud now. i hear a lot of people on here complain about it a lot, but i think its almost kinda neat soundin....along with the nice subtle rumble of the LT/ORY/Magnaflow. when i installed my 224 cam on stock heads, i never really noticed the sewing machine sound....no more than stock anyway. but now with the new heads, its really noticeable. anyway, anyone else have this after a new valvetrain upgrade?
RIP April 14, 2008
Joined: Aug 2004
Posts: 1,603
Likes: 0
From: the land where cars repeatedly hit my bumper when I'm in the store...
what does it sound like, I still cant figure out WTF the noise coming from my engine bay is. Loud hiss sort of thing. I've gone through like 1000000000 things trying to fix it. well maybe lik 9 or 10.
TECH Apprentice
Joined: Feb 2002
Posts: 363
Likes: 0
From: Brook Park, Ohio
Originally Posted by Diolar Magnum
what does it sound like, I still cant figure out WTF the noise coming from my engine bay is. Loud hiss sort of thing. I've gone through like 1000000000 things trying to fix it. well maybe lik 9 or 10.
When I installed my air lid I noticed a hissing noise from under the hood. It turned out to be the intake line on the air pump. Prior to the new lid the intake line was connected directly to the air box and did not make any noise. After the new air lid, the intake line is not connected to the air lid and has its own filter. The noise may be coming from that filter; at least in my situation it was. If I cover the filter with my hand the noise goes away, but as soon as I let the filter draw in air the noise comes back.
I don't know if that's what's occuring in your situation, but that was my problem.
Hope that helps,
Jim
TECH Apprentice
Joined: Oct 2004
Posts: 360
Likes: 0
From: Katy, TX
I have just a block in my car with stock heads and cam. The sewing machine effect is already bad enough for me. When I take my vacation in 2 weeks and put on these 6.0's and the cam, I can only imagine what it's going to sound like...
Trending Topics
RIP April 14, 2008
Joined: Aug 2004
Posts: 1,603
Likes: 0
From: the land where cars repeatedly hit my bumper when I'm in the store...
Originally Posted by ACCELR8
When I installed my air lid I noticed a hissing noise from under the hood. It turned out to be the intake line on the air pump. Prior to the new lid the intake line was connected directly to the air box and did not make any noise. After the new air lid, the intake line is not connected to the air lid and has its own filter. The noise may be coming from that filter; at least in my situation it was. If I cover the filter with my hand the noise goes away, but as soon as I let the filter draw in air the noise comes back.
I don't know if that's what's occuring in your situation, but that was my problem.
Hope that helps,
Jim
I don't know if that's what's occuring in your situation, but that was my problem.
Hope that helps,
Jim
Whoa whoa run this by me again, pretend like I am a two year old in your explanation. Thats kind of what I thought, but I am not familiar with this air intake line disconnection. when i put in my lid (MTI clear lid), everything was the same way (technically speaking) as when the lid was stock.
OH actually can you PM me so this thread isnt hijacked. sorry guys.
Thanks Jim
Brad
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
sewing machine sound
Originally Posted by Wickid Z
i installed my MTI h/c package last weekend. i must say the sewing machine sound is really loud now. i hear a lot of people on here complain about it a lot, but i think its almost kinda neat soundin....along with the nice subtle rumble of the LT/ORY/Magnaflow. when i installed my 224 cam on stock heads, i never really noticed the sewing machine sound....no more than stock anyway. but now with the new heads, its really noticeable. anyway, anyone else have this after a new valvetrain upgrade?
cam engine.i kinda like it,but at first it was a shock.
I laugh now when I hear people whine about the "sewing machine effect".........come listen to my solid roller setup....I have the entire textile mill under my valve covers.... 
Thread Starter
Joined: Dec 2003
Posts: 2,152
Likes: 0
From: Virginia Beach, Va
Originally Posted by koolaid
Did you remove the AIR system? When I removed mine, one of the lines that attached to a junction behind the intake was loose, and it hissed.
TECH Apprentice
Joined: Feb 2002
Posts: 363
Likes: 0
From: Brook Park, Ohio
Originally Posted by Diolar Magnum
Whoa whoa run this by me again, pretend like I am a two year old in your explanation. Thats kind of what I thought, but I am not familiar with this air intake line disconnection. when i put in my lid (MTI clear lid), everything was the same way (technically speaking) as when the lid was stock.
OH actually can you PM me so this thread isnt hijacked. sorry guys.
Thanks Jim
Brad
OH actually can you PM me so this thread isnt hijacked. sorry guys.
Thanks Jim
Brad
