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

Eratic timing..... possible causes ?

Thread Tools
 
Search this Thread
 
Old Sep 8, 2002 | 02:29 PM
  #21  
Rich B.'s Avatar
Rich B.
Melting Slicks
20 Year Member
 
Joined: Aug 2001
Posts: 2,516
Likes: 0
From: Lockport NY
Default Re: (87SAM)

Very interesting, above about 3500rpm my tack reads about 5rpm :crazy:
...The waterfall display or the digital readout???...
Reply
Old Sep 8, 2002 | 10:43 PM
  #22  
gcrouse's Avatar
gcrouse
Melting Slicks
10 Year Member
 
Joined: May 2000
Posts: 2,148
Likes: 1
From: Chandler AZ
Default Re: Eratic timing..... possible causes ? (BLUE ONE)

But timing still moves around a bit at 800 rpm, ( up to 90 deg every now and again
Again, if you're jumping 90 degrees you're triggering on crossfire from another cylinder. First thing to do is run it in the dark and look for stray sparks or arcing. Replacing plug wires, cap, and rotor will fix this.
Reply
Old Sep 8, 2002 | 11:24 PM
  #23  
87SAM's Avatar
87SAM
Safety Car
25 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2001
Posts: 4,386
Likes: 689
From: Boise ID
Default Re: (Rich B.)

Rich B. That would be the digital display. The truth is I am not completly sure but I think the waterfall display may read some what correct. :(


[Modified by 87SAM, 8:24 PM 9/8/2002]
Reply




All times are GMT -4. The time now is 04:08 PM.

story-0
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-1
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-2
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-3
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
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE