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

1986 Tune up questions

Thread Tools
 
Search this Thread
 
Old Jan 20, 2015 | 05:12 PM
  #1  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default 1986 Tune up questions

I'm getting ready to do a tune up and wanted to know your opinion on plugs and wire recommendations
Reply
Old Jan 20, 2015 | 07:55 PM
  #2  
Dt86's Avatar
Dt86
Safety Car
 
Joined: Jan 2014
Posts: 4,017
Likes: 492
From: Poughkeepsie New York
Default

Originally Posted by jasonkraft
I'm getting ready to do a tune up and wanted to know your opinion on plugs and wire recommendations
It will depend on if you have iron or aluminum heads. They use different plugs. I use ac delco parts.
Reply
Old Jan 20, 2015 | 09:09 PM
  #3  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

I don't mind spending on plug wires but I wouldn't buy some high tech stuff for plugs. I usually toss them out within 2 years. As to plug wires, how handy are you? I have a set of MSD wires that have no ends. I had to crimp it. I bought the crimper and cut them to length. AS to plugs, I just use some decent NGK plugs.
Reply
Old Jan 20, 2015 | 10:15 PM
  #4  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

It has aluminum heads, I have a new set of msd street fire 8mm bought for my chevy truck that is long gone. Just have to figure out how to crimp the ends on, getting ready to check you tube. I've used Taylor wires in the past and was really happy with them (had a 92 stang and went through 2 sets of accel in 1 year then switched to Taylors). Which NGK plugs are you using?
Reply
Old Jan 20, 2015 | 10:26 PM
  #5  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by jasonkraft
It has aluminum heads, I have a new set of msd street fire 8mm bought for my chevy truck that is long gone. Just have to figure out how to crimp the ends on, getting ready to check you tube. I've used Taylor wires in the past and was really happy with them (had a 92 stang and went through 2 sets of accel in 1 year then switched to Taylors). Which NGK plugs are you using?
If it is stock, go look up the chart. I have AFR heads so it doesn't matter what I use.

http://www.summitracing.com/search/p...imping%20Tools
Reply
Old Jan 20, 2015 | 10:40 PM
  #6  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

Thanks I'll check that out. It's stock, not sure about the internals. It's got 180k miles on it and runs strong.
Reply
Old Jan 20, 2015 | 10:43 PM
  #7  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

I just checked the garage and found the Taylor crimper and the MSD mini crimper that came with the wires
Reply
Old Jan 20, 2015 | 10:58 PM
  #8  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

ASSUMING the boots are good, all you need is a razor blade and a bunch of good terminals. IF that is the route you want to go, I would put you wire looms in place first then get the wires going so you can cut to length. Being they are not new, I would test them first. Find a car they can fit on, run it in a garage and spray a fine water mist AROUND the plug wires. Any light, toss.
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 Jan 20, 2015 | 11:27 PM
  #9  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

The wires are new, opened the box and put on the shelf because I sold the truck. The ends have never been crimped on so they should be good. Just wish I had sprung for the better crimper.
Reply
Old Jan 20, 2015 | 11:51 PM
  #10  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by jasonkraft
Thanks I'll check that out. It's stock, not sure about the internals. It's got 180k miles on it and runs strong.
If you want to know the internals, drive for 3000 miles, send oil sample for analysis to see if anything is worn out. Before I go there, I would run a compression and leakdown test. At 180K, I don't hold any high hopes for that motor.
Reply
Old Jan 20, 2015 | 11:52 PM
  #11  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by jasonkraft
The wires are new, opened the box and put on the shelf because I sold the truck. The ends have never been crimped on so they should be good. Just wish I had sprung for the better crimper.
Unless you want to swing by Milwaukee, that is what you got, that is what you work with. I have the MSD one and it is nice.
Reply
Old Jan 27, 2015 | 05:02 PM
  #12  
86C4Z51's Avatar
86C4Z51
Burning Brakes
 
Joined: Nov 2014
Posts: 936
Likes: 51
From: Post Falls ID
Default

http://www.magnecor.com/magnecor1/main.htm

Best wires you can get, custom made (no measuring/crimping) and lifetime guarantee. Cost you about $130 for the set.
Reply
Old Jan 27, 2015 | 07:00 PM
  #13  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by 86C4Z51
http://www.magnecor.com/magnecor1/main.htm

Best wires you can get, custom made (no measuring/crimping) and lifetime guarantee. Cost you about $130 for the set.
Do you own a set? I'd be curious as to how they fit. I have them coming over the valve cover and down to the plugs via wire looms.
Reply
Old Jan 27, 2015 | 07:02 PM
  #14  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

Thanks guys, I got the MSD wires made up and installed. The tool they came with worked great ordered a Taylor cap and rotor and used the AC plugs. Everything went good and boy did it pep the car up but no. 2 was a pain, I think they built everything around that plug
Reply
Old Jan 27, 2015 | 07:05 PM
  #15  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

Next is a smog pump delete since mine is making a little noise. What do you have to do to plug the lines on stock manifolds?
Reply
Old Jan 27, 2015 | 07:09 PM
  #16  
c4cruiser's Avatar
c4cruiser
Team Owner
20 Year Member
Veteran: Army
 
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Default

Originally Posted by jasonkraft
Next is a smog pump delete since mine is making a little noise. What do you have to do to plug the lines on stock manifolds?
The threaded end of the tubes on the manifold is a 1/2" NPT thread. Just go to Lowe's or Home Depot and get a couple of 1/2" caps. USe some anti-seize on the threads.
Reply
Old Jan 27, 2015 | 07:26 PM
  #17  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

Originally Posted by c4cruiser
The threaded end of the tubes on the manifold is a 1/2" NPT thread. Just go to Lowe's or Home Depot and get a couple of 1/2" caps. USe some anti-seize on the threads.
Thanks, my weekend projects are piling up. I have to go measure for the bracket and fab something up
Reply

Get notified of new replies

To 1986 Tune up questions

Old Jan 27, 2015 | 07:32 PM
  #18  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by jasonkraft
Thanks, my weekend projects are piling up. I have to go measure for the bracket and fab something up
You can't find a commercially available unit?
Reply
Old Jan 27, 2015 | 07:49 PM
  #19  
jasonkraft's Avatar
jasonkraft
Thread Starter
Intermediate
 
Joined: Dec 2014
Posts: 42
Likes: 0
Default

Yeah but I have a machine shop in my basement and it's too cold to do anything else on the weekends, it should only be a cost of the pulley
Reply
Old Jan 28, 2015 | 07:27 AM
  #20  
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

Originally Posted by jasonkraft
Thanks, my weekend projects are piling up. I have to go measure for the bracket and fab something up
Here is some measurements from a delete I built years ago.

http://members.shaw.ca/dankai/Air%20...Delete%20Info/



Reply



All times are GMT -4. The time now is 08:02 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 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