timing 1990 L98 ?

Reply Subscribe

Thread Tools

Search this Thread

Oct 18, 2010 | 06:49 PM

Joe

Thread Starter

Racer

Joined: Feb 1999

Posts: 274

Likes: 0

From: summerfield ( Villages ) FL.

timing 1990 L98 ?

The book says the info is on a sticker under the hood , nope

I can't rember, think it was 8 degree BTDC
Anyone Know`for sure ? 1990 L98

Oct 18, 2010 | 09:08 PM

TPI BOY

Burning Brakes

Joined: Dec 2002

Posts: 1,179

Likes: 3

From: STANTON CA

on my 91 it's 6*

Oct 19, 2010 | 10:25 AM

Lemme

Drifting

Joined: Nov 2009

Posts: 1,341

Likes: 2

From: Perth Western Australia

St. Jude Donor '10

Quote:

Originally Posted by Joe

The book says the info is on a sticker under the hood , nope

I can't rember, think it was 8 degree BTDC
Anyone Know`for sure ? 1990 L98

I think the sticker is on the radiator on the drivers side. Talks about emissions in general.

Oct 19, 2010 | 07:38 PM

Joe

Thread Starter

Racer

Joined: Feb 1999

Posts: 274

Likes: 0

From: summerfield ( Villages ) FL.

On mine shows how to thread the serpentine belt

Oct 19, 2010 | 08:02 PM

Joe

Thread Starter

Racer

Joined: Feb 1999

Posts: 274

Likes: 0

From: summerfield ( Villages ) FL.

Quote:

Originally Posted by TPI BOY

on my 91 it's 6*

That should work !
90 and 91 are the same animal
Thank you very much , if we can get it running correctly we have a new old stock Paxton Super charger to install , made for a 90 or 91

Oct 22, 2010 | 11:30 AM

Joe

Thread Starter

Racer

Joined: Feb 1999

Posts: 274

Likes: 0

From: summerfield ( Villages ) FL.

spent 1/2 the day trying to get this done , used 3 diffrent kinds of paint to mark the balancer mark , Dam , had #1 cylinder on the wrong side

Oct 22, 2010 | 04:07 PM

EastCoastHD

Instructor

Joined: Jun 2008

Posts: 138

Likes: 0

From: Bridgewater Ma.

Quote:

Originally Posted by Joe

Dam , had #1 cylinder on the wrong side

With that said,

Prior to setting the timing, did you disconnect the EST bypass?

Oct 22, 2010 | 11:30 PM

Lemme

Drifting

Joined: Nov 2009

Posts: 1,341

Likes: 2

From: Perth Western Australia

St. Jude Donor '10

Here it is on the drivers side of the radiator on my 87

Says 6 deg BTDC and 0.035" plug gap

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

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

Michael S. Palmer

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

Joe Kucinski

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

Joe Kucinski

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

Verdad Gallardo

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Joe Kucinski

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Verdad Gallardo

Top 10 Corvettes Coming to Mecum Indy 2026!

Brett Foote

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Michael S. Palmer

10 Revolutionary 'Corvette Firsts' Most People Don't Know

Joe Kucinski

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Michael S. Palmer

Oct 25, 2010 | 03:32 PM

MyFirst90coupe

Burning Brakes

Joined: May 2010

Posts: 840

Likes: 4

From: High Point NC

My 90 L98 says 6* BTDC

You must unplug the EST as someone said.

Oct 26, 2010 | 08:34 PM

#10

Joe

Thread Starter

Racer

Joined: Feb 1999

Posts: 274

Likes: 0

From: summerfield ( Villages ) FL.

Quote:

Originally Posted by MyFirst90coupe

My 90 L98 says 6* BTDC

You must unplug the EST as someone said.

Yup we did , can,t figure it out , getting very bad fuel milage , no codes , black smoke and back firing , out of real side pipes ,well I did find a vacum line off under the throttle body , black smoke seems to be gone but running like poop ! Might need new plugs now