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

MPG Increase with plugs and wires

Thread Tools
 
Search this Thread
 
Old Apr 16, 2003 | 05:21 PM
  #1  
black_89_vette's Avatar
black_89_vette
Thread Starter
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
Default MPG Increase with plugs and wires

I just replaced stock wires and ac delco plugs ( needed changing) to 8 mm Taylor Spiro Pro wires and NGK TR6's gapped at 0.038 and I noticed a MPG increase.

Setting cruise at 125 kmh ( 75 mph) on a 100 km trip each way, I usually noticed 26-28 mpg.

Now, I just did the same trip and the readout said 33 mpg.

Is it normal to notice such an increase with plugs and wires?
Reply
Old Apr 16, 2003 | 06:57 PM
  #2  
Steel Blue 91's Avatar
Steel Blue 91
Le Mans Master
15 Year Member
Veteran: Air Force
 
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Default Re: MPG Increase with plugs and wires (black_89_vette)

:yesnod: Depends on how old and used up they are. Changing out those items if they were old, will allow the engine to use the fuel more efficiently and result in better fuel economy. Weather conditions would play a part also.


[Modified by Steel Blue 91, 6:57 PM 4/16/2003]
Reply
Old Apr 16, 2003 | 07:04 PM
  #3  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,153
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default Re: MPG Increase with plugs and wires (black_89_vette)

If the old ones were bad, yes.
Reply
Old Apr 16, 2003 | 07:11 PM
  #4  
hngacurv's Avatar
hngacurv
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2002
Posts: 17,367
Likes: 1
From: Kentucky
Default Re: MPG Increase with plugs and wires (vader86)

:cheers: :thumbs:
Reply

Get notified of new replies

To MPG Increase with plugs and wires





All times are GMT -4. The time now is 02:27 PM.

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 11:09:53


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