Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Fernco Mod

Thread Tools
 
Search this Thread
 
Old Apr 12, 2007 | 03:42 AM
  #81  
99blancoSS's Avatar
Banned
iTrader: (115)
 
Joined: Feb 2005
Posts: 9,892
Likes: 3
From: ST Helens, OR
Default

The correct size would be a 3x4. I have a 3x3 sitting here and mo way I'll use it. I'd like a hump hose but I'm not paying what they want for them now. I'll go back to the original factory bellows if I have to. I like the SLP bellow but and not paying $60 for it.
There are other options out there. From the turbo crowd there are plenty of silicone couplers with humps as well. Its just finding a 3"x4" that comes in black and is not too stiff. There is a compnay in China I'm trying to hook up with to produce an inexpensive alternative to the SLP smooth bellow.
Reply
Old Apr 12, 2007 | 08:54 AM
  #82  
Redlinez's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jan 2003
Posts: 2,298
Likes: 0
From: Fuquay-Varina, NC
Default

No, the 3/4 won't work. It really needs a 3x3.5. The 4" end on the TB is huge and sloppy. I got mine on, just took some coercing.
Reply
Old Apr 12, 2007 | 09:04 AM
  #83  
Infantrymarine's Avatar
12 Second Club
iTrader: (3)
 
Joined: Mar 2005
Posts: 151
Likes: 0
From: Mechanicsville, Va
Default

Did mine yesterday. Was easy after you boil it. Haven't noticed anything yet, performance or damage!
Reply
Old Apr 12, 2007 | 07:17 PM
  #84  
gillbot's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2002
Posts: 2,397
Likes: 0
From: East Palestine, OH - USA
Default

Originally Posted by 99blancoSS
The correct size would be a 3x4. I have a 3x3 sitting here and mo way I'll use it. I'd like a hump hose but I'm not paying what they want for them now. I'll go back to the original factory bellows if I have to. I like the SLP bellow but and not paying $60 for it.
There are other options out there. From the turbo crowd there are plenty of silicone couplers with humps as well. Its just finding a 3"x4" that comes in black and is not too stiff. There is a compnay in China I'm trying to hook up with to produce an inexpensive alternative to the SLP smooth bellow.
I used a Y fitting and cut the leg of the Y off. It has a slight bend so it fits better and was the perfect size. The guy at lowes thought I was nuts when I asked to take 4 or 5 different ones out to my car to see which one would fit best.
Reply
Old Apr 13, 2007 | 03:55 PM
  #85  
Danger731's Avatar
TECH Apprentice
iTrader: (3)
 
Joined: Oct 2005
Posts: 388
Likes: 0
From: Indy
Default

^ ha ha
Reply
Old Apr 13, 2007 | 04:15 PM
  #86  
89Formulaws6's Avatar
12 Second Club
iTrader: (52)
 
Joined: Mar 2006
Posts: 699
Likes: 0
From: Michigan
Default

the 3/4 is the one i have you just gotta do some trimming on the 4in part and clamp it down tight and it fits perfect
Reply
Old Apr 13, 2007 | 05:58 PM
  #87  
99blancoSS's Avatar
Banned
iTrader: (115)
 
Joined: Feb 2005
Posts: 9,892
Likes: 3
From: ST Helens, OR
Default

Originally Posted by Redlinez
No, the 3/4 won't work. It really needs a 3x3.5. The 4" end on the TB is huge and sloppy. I got mine on, just took some coercing.
stock size bellow is 3.5x4
Reply
Old Apr 18, 2007 | 06:32 AM
  #88  
Danger731's Avatar
TECH Apprentice
iTrader: (3)
 
Joined: Oct 2005
Posts: 388
Likes: 0
From: Indy
Default

I used 3 x 3 boiled for 30 minutes, fit supernice.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old May 15, 2007 | 09:15 AM
  #89  
LS1rulz's Avatar
TECH Regular
iTrader: (1)
 
Joined: Nov 2006
Posts: 439
Likes: 0
From: Greenup, Kentucky
Default

Originally Posted by gillbot
I used a Y fitting and cut the leg of the Y off. It has a slight bend so it fits better and was the perfect size. The guy at lowes thought I was nuts when I asked to take 4 or 5 different ones out to my car to see which one would fit best.
So what did you do to seal the opening?
Reply
Old May 16, 2007 | 03:47 PM
  #90  
gillbot's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2002
Posts: 2,397
Likes: 0
From: East Palestine, OH - USA
Default

Originally Posted by LS1rulz
So what did you do to seal the opening?
There is no opening to seal, I cut off the short leg of the Y and used that.
Reply
Old May 17, 2007 | 11:58 AM
  #91  
Fifedogg's Avatar
11 Second Club
iTrader: (15)
 
Joined: Mar 2007
Posts: 772
Likes: 0
From: So Cal
Default

no bellow is going to give any HP increase. I installed the SLP on on my car and couldn't notice a thing. The SLP has a better fit and won't break the lid like the Fernco because its made to flex. Not worth it in my opinion.
Reply
Old May 17, 2007 | 01:44 PM
  #92  
coolformula's Avatar
TECH Fanatic
iTrader: (21)
 
Joined: Feb 2006
Posts: 1,029
Likes: 0
From: Greater Chattanooga
Default

I tried 2 different times with the Fernco and my knife and custom fitting and tried over an hour out the sun. I twas not possible to get it to fit, even got a frined to try, its a pain. I'm getting a used slp one. Not worth your time and gas and 5 dollars it costs.
Reply
Old May 17, 2007 | 05:25 PM
  #93  
Dex's Avatar
Dex
TECH Regular
iTrader: (5)
 
Joined: Aug 2006
Posts: 432
Likes: 0
From: Summerville SC
Default

What are you guys doing to make this so hard. I cut mine to fit with a cut off wheel then put it in the microwave for about 2 minutes and it went right on no hassles.
Reply
Old May 17, 2007 | 07:16 PM
  #94  
LS1rulz's Avatar
TECH Regular
iTrader: (1)
 
Joined: Nov 2006
Posts: 439
Likes: 0
From: Greenup, Kentucky
Default

So it easily comes off and back on now when you have to remove your air filter, or clean it, etc?
Reply
Old May 17, 2007 | 08:18 PM
  #95  
rich Z's Avatar
TECH Regular
 
Joined: Jan 2004
Posts: 496
Likes: 0
From: GARDEN GROVE, CA
Default

I once bought this mod and thru it away since it wouldn't fit and have heard of cracked lids from it.
Reply
Old May 19, 2007 | 08:07 AM
  #96  
gillbot's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2002
Posts: 2,397
Likes: 0
From: East Palestine, OH - USA
Default

I've put one on MANY cars without a single issue and have yet to see a single cracked lid.
Reply
Old Jul 19, 2007 | 03:11 AM
  #97  
GMmexican's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Jan 2006
Posts: 1,607
Likes: 0
From: San Jose, CA
Default

sorry 2 ressurct an old thread i just bought my 3x3 fernco.......i will give it a few heat cycles
Reply
Old Jul 19, 2007 | 03:20 AM
  #98  
Havok2's Avatar
11 Second Club
iTrader: (118)
 
Joined: Jan 2004
Posts: 2,994
Likes: 0
From: RGV texas
Default

ok, so whats the point off bringing up this thread? to say you bought one?
Reply
Old Jul 19, 2007 | 11:27 AM
  #99  
GMmexican's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Jan 2006
Posts: 1,607
Likes: 0
From: San Jose, CA
Default

Originally Posted by Havok2
ok, so whats the point off bringing up this thread? to say you bought one?
and to share my experience.........and 2 be one of the lucky ones that doesnt get a cracked lid
Reply
Old Jul 19, 2007 | 12:02 PM
  #100  
jimmypop13's Avatar
TECH Fanatic
iTrader: (17)
 
Joined: Nov 2001
Posts: 1,387
Likes: 0
From: SPRING, TX
Default

i have a NW90 throttle body and an 85mm lid with an 85mm maf.
I'm still using the stock bellows because they still fit, but just a hair tighter.
If I went the silicone route just to make it look better under the hood, I'm wondering if I would just get a straight 4" hose about 6" long and just trim it from there. I need to measure that sh*t!
Reply




All times are GMT -5. The time now is 07:24 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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