C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

I'm thinking about doing the T/B bypass..

Thread Tools
 
Search this Thread
 
Old Mar 10, 2005 | 11:14 PM
  #1  
nitronick's Avatar
nitronick
Thread Starter
Race Director
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Dec 2004
Posts: 15,033
Likes: 2
Default I'm thinking about doing the T/B bypass..

1985 Coupe, 4+3.
What affect does it have on cold starting? Will it throw a code at any time warm or cold?
Reply
Old Mar 10, 2005 | 11:22 PM
  #2  
VAHROOM's Avatar
VAHROOM
Burning Brakes
20 Year Member
 
Joined: Apr 2000
Posts: 980
Likes: 2
From: Chandler AZ
Default

It did make a small difference on my 90 here in AZ as far as HOT weather driving. It seemed it didn't lose as much power when it was over 110. I don't have any real data to back it up. I didn't notice a difference in the cold though. I didn't see any performance difference either. It did clean up the look of the engine compartment a slight bit.
Reply
Old Mar 10, 2005 | 11:37 PM
  #3  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

Originally Posted by nitronick
1985 Coupe, 4+3.
What affect does it have on cold starting? Will it throw a code at any time warm or cold?
No code, only the possibility of butterfly icing during certain climatic conditions.

Jake
Reply
Old Mar 11, 2005 | 01:01 AM
  #4  
nitronick's Avatar
nitronick
Thread Starter
Race Director
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Dec 2004
Posts: 15,033
Likes: 2
Default

Originally Posted by JAKE
No code, only the possibility of butterfly icing during certain climatic conditions.

Jake

Well, if it's THAT cold I ain't gonna be drivin' it anyway!
Reply
Old Mar 11, 2005 | 01:12 AM
  #5  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

Originally Posted by nitronick
Well, if it's THAT cold I ain't gonna be drivin' it anyway!
I don't recall the exact temp #s but it's something like outside temps in the mid 30s or so and high humiditiy.

By-passing it does not set a code; there's no code for that in the ECM. The system will never even know you did it.

Jake
Reply
Old Mar 11, 2005 | 01:41 AM
  #6  
olman's Avatar
olman
Racer
 
Joined: Mar 2004
Posts: 311
Likes: 0
From: Oakley Ca
Default

I did it years ago. Waste of time.
Reply
Old Mar 11, 2005 | 01:53 AM
  #7  
H P Bushrod's Avatar
H P Bushrod
Moderator Emeritus
20 Year Member
Veteran: Air Force
St. Jude 15 Year Donor
 
Joined: Jun 2002
Posts: 46,133
Likes: 111
From: Maryville Tn
CI 5 thru 12 Veteran
St. Jude Donor '09 thru '23
NCM Sinkhole Donor
Default

If it's not broke, don't fix it.
Reply
Old Mar 11, 2005 | 02:34 AM
  #8  
nitronick's Avatar
nitronick
Thread Starter
Race Director
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Dec 2004
Posts: 15,033
Likes: 2
Default

Originally Posted by JAKE
I don't recall the exact temp #s but it's something like outside temps in the mid 30s or so and high humiditiy.
Well that's a little warmer than I thought you were talking about. I have had the vette out in those temps. I didn't like it, since my heater temp selector is stuck to the cold side!

By-passing it does not set a code; there's no code for that in the ECM. The system will never even know you did it.

Jake
I was mainly concerned with it affecting the IAC. Causing it to set a code.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Mar 11, 2005 | 03:51 AM
  #9  
TA's Avatar
TA
Team Owner
25 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Dec 2000
Posts: 21,094
Likes: 282
From: Phila., PA burbs
Default

Originally Posted by olman
I did it years ago. Waste of time.

Maybe from a performance stand-point, but it sure makes removing the throttle body a breeze.
Reply
Old Mar 11, 2005 | 04:54 AM
  #10  
REDC4CORVETTE's Avatar
REDC4CORVETTE
Safety Car
10 Year Member
 
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
Default

Waste of time unless you remove your throttle body alot.
All I noticed is it got my opti wet and caused more problems than it was worth.
Now I juice it so it made it easier to set up the nitrous plate.
I think the mod rates up their with the air foil,!/2 inch spacer for the throttle body,adjustable fuel regulator,and mass air flow housing.
Reply
Old Mar 11, 2005 | 07:49 AM
  #11  
runner140*'s Avatar
runner140*
Le Mans Master
20 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Default It's a better idea if you live in.....

If you live is South Florida, Az. or Cal. It is for reducing heat in the T/B. In most states, reducing the temp. in the T/B is not necessary. In South Florida reducing the temp. in the T/B, during the summer, is necessary.
Reply
Old Mar 11, 2005 | 09:59 AM
  #12  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Default

I did it because it cleans up the engine bay. I went as far as removing the coolant passage and nipples from the TB
Reply

Get notified of new replies

To I'm thinking about doing the T/B bypass..





All times are GMT -4. The time now is 09:29 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE