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

L98 timing

Thread Tools
 
Search this Thread
 
Old Apr 13, 2002 | 01:14 AM
  #1  
DADDY D's Avatar
DADDY D
Thread Starter
Racer
 
Joined: Jun 2001
Posts: 335
Likes: 0
From: MANTEO NC USA
Default L98 timing

what do you set your time at for best performance and horsepower on 86 vette
Reply
Old Apr 13, 2002 | 01:22 AM
  #2  
85vet's Avatar
85vet
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2000
Posts: 3,426
Likes: 4
From: Heidelberg PA
Cruise-In V Veteran
Default Re: L98 timing (DADDY D)

For 85 - 8deg. advanced.

If you check out prior posts, most setups are between 6 to 8 deg. advanced.
:chevy
Reply
Old Apr 13, 2002 | 03:33 AM
  #3  
Bill Reid's Avatar
Bill Reid
Le Mans Master
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2000
Posts: 7,391
Likes: 3
From: Chandler AZ
Default Re: L98 timing (DADDY D)

Stock chip? Stock induction and cam?

6 degrees... as prescribed from GM on the drivers side of your top radiator cover :)
Reply
Old Apr 13, 2002 | 04:03 AM
  #4  
OrangeC4's Avatar
OrangeC4
Drifting
15 Year Member
 
Joined: Oct 2001
Posts: 1,351
Likes: 20
From: Back in San Diego Ca
Default Re: L98 timing (billreid1@***.net)

Stock chip? Stock induction and cam?

6 degrees... as prescribed from GM on the drivers side of your top radiator cover :)
:yesnod: "THATS CORRECT SIR!!"(in my worst Ed Mcmahon voice)
Reply
Old Apr 13, 2002 | 10:07 AM
  #5  
DADDY D's Avatar
DADDY D
Thread Starter
Racer
 
Joined: Jun 2001
Posts: 335
Likes: 0
From: MANTEO NC USA
Default Re: L98 timing (OrangeC4)

my car is far from stock it has right many mods
Reply
Old Apr 13, 2002 | 12:49 PM
  #6  
OrangeC4's Avatar
OrangeC4
Drifting
15 Year Member
 
Joined: Oct 2001
Posts: 1,351
Likes: 20
From: Back in San Diego Ca
Default Re: L98 timing (DADDY D)

my car is far from stock it has right many mods
What do you have done to it? You can't put a teaser like that and tell us at least some of what you have done.
Reply
Old Apr 13, 2002 | 01:03 PM
  #7  
DADDY D's Avatar
DADDY D
Thread Starter
Racer
 
Joined: Jun 2001
Posts: 335
Likes: 0
From: MANTEO NC USA
Default Re: L98 timing (OrangeC4)

my motor has been rebuilt it was bored .40 over 52mm tb,flowmaster mufflers, slp headers, no cats, k&N filter, open air lid, 3.73 gear, hypertech chip, cam .444/.444, heads ported and polished, and dry shot of nos if i could ever get it to work a custom chip and a set of 1.6 roller rockers comning soon
Reply
Old Apr 13, 2002 | 01:45 PM
  #8  
tpivette89's Avatar
tpivette89
Instructor
 
Joined: Apr 2002
Posts: 243
Likes: 0
From: Hockessin DE
Default Re: L98 timing (DADDY D)

i keep mine at the factory setting of 6 degrees
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 Apr 13, 2002 | 01:51 PM
  #9  
AS84's Avatar
AS84
Melting Slicks
 
Joined: Aug 2000
Posts: 2,009
Likes: 1
From: Springfield MO
Default Re: L98 timing (tpivette89)

advance it until it pings and then pull 2-3 degrees out of it. I run my modded 90 at 11
Reply
Old Apr 13, 2002 | 11:17 PM
  #10  
DADDY D's Avatar
DADDY D
Thread Starter
Racer
 
Joined: Jun 2001
Posts: 335
Likes: 0
From: MANTEO NC USA
Default Re: L98 timing (AS84)

thanks i will try that
Reply
Old Apr 13, 2002 | 11:25 PM
  #11  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default

For me personally 9.5 has been the best, yet I also have not tried higher yet.
Reply
Old Apr 13, 2002 | 11:52 PM
  #12  
Bluevette85's Avatar
Bluevette85
Drifting
 
Joined: Nov 2001
Posts: 1,783
Likes: 2
From: Latham NY
Default Re: L98 timing (DADDY D)

Setting the correct timing assumes that the Harmonic Balancer hasn't slipped and that there is no slack in the timing chain.
Reply
Old Apr 14, 2002 | 03:07 PM
  #13  
DADDY D's Avatar
DADDY D
Thread Starter
Racer
 
Joined: Jun 2001
Posts: 335
Likes: 0
From: MANTEO NC USA
Default Re: L98 timing (Bluevette85)

timing chain and harmonic balancer only has about 30,000 miles on it i just had the motor rebuilt about a year and a half ago.
Reply

Get notified of new replies

To L98 timing





All times are GMT -4. The time now is 10:20 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