Boy,I wish I had one!!!
Not.
Great optispark picture!!
Thread Starter
Heel & Toe
Joined: Dec 2004
Posts: 20
Likes: 0
Great optispark picture!!
For the guys that need to know. This helped me understand where the optispark is located. Go to sonomacrew01's corvette pictures, he has an engine out of car photo that will show you exactly where it is.
Thanks sonomacrew01
http://forums.corvetteforum.com/phot.../ppuser/172071
Thanks sonomacrew01
http://forums.corvetteforum.com/phot.../ppuser/172071
Last edited by stouk; Aug 18, 2006 at 03:39 PM.
Le Mans Master
Joined: Dec 2003
Posts: 5,768
Likes: 33
From: Van Steel Corvettes
St. Jude Donor '12-'13
I sure bet those engineers where happy with them selfs when they designed that. I know I would have been. It's a pretty ingenious design...until you get it wet.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Until you've taken the front of the engine apart, it's just an act of faith to believe it's there. I'm not complaining though. I replaced the original at 93K miles because I had the engine torn down. It was still performing well though, as is it's replacement at 25K miles of service. It's still by far the most effective and ingenius distributor ever installed on the SBC. 
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
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
Melting Slicks
Joined: Apr 2003
Posts: 3,110
Likes: 6
From: Red Sox Nation! RI
Originally Posted by Corvette Kid
It's still by far the most effective and ingenius distributor ever installed on the SBC.
I gotta ask (seriously, because I know zilch about optispark)....How can it be the most effective and ingenius SBC distributor ever designed if there are so many problems with them? Not to mention the cost of replacement. Just one look at it's placement in the motor and I'm scratching my head asking, what were they thinking?
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by C4boy
I gotta ask (seriously, because I know zilch about optispark)....How can it be the most effective and ingenius SBC distributor ever designed if there are so many problems with them? Not to mention the cost of replacement. Just one look at it's placement in the motor and I'm scratching my head asking, what were they thinking?
Melting Slicks
Joined: Apr 2003
Posts: 3,110
Likes: 6
From: Red Sox Nation! RI
Originally Posted by Corvette Kid
What other SBC distributor can you name that can time individual cylinders as needed to prevent spark knock?
Instructor
Joined: Apr 2006
Posts: 215
Likes: 0
From: Conway AR
I've got to agree with "the best design for a SBC". Yep, with 2 knock sensors (one on each side of the block) the 'puter can (and does) time each cylinder as needed. That's where the good gas milage comes from (IMHO).
And, IF the seals are still ok, it don't matter if the Opti gets wet. Hey, if the engine is warm, it'll dry off real quick. The old GM HEI ignition was very expensive ($175 just for the plug wires in 76) to work on.
I figure any thing that'll go to 100 K or so miles with no maintance, ain't no slouch.
And, IF the seals are still ok, it don't matter if the Opti gets wet. Hey, if the engine is warm, it'll dry off real quick. The old GM HEI ignition was very expensive ($175 just for the plug wires in 76) to work on.
I figure any thing that'll go to 100 K or so miles with no maintance, ain't no slouch.
Burning Brakes
Joined: Nov 2004
Posts: 1,107
Likes: 0
From: RI
don't go by that picture. That opti was defective, and it was brand new! Everytime I look at that picture I get upset because only if I knew the opti was bad, it would have been real easy to replace.
I have the MSD now, 400 miles and no problems. Had a couple dyno runs where it pulles 5500 rpm's no problem. No sense in going any higher when the engine reached its peak.
I have the MSD now, 400 miles and no problems. Had a couple dyno runs where it pulles 5500 rpm's no problem. No sense in going any higher when the engine reached its peak.
Le Mans Master
Joined: May 2005
Posts: 5,214
Likes: 65
From: Queensland, AUSTRALIA
Originally Posted by Corvette Kid
Until you've taken the front of the engine apart, it's just an act of faith to believe it's there. I'm not complaining though. I replaced the original at 93K miles because I had the engine torn down. It was still performing well though, as is it's replacement at 25K miles of service. It's still by far the most effective and ingenius distributor ever installed on the SBC.
Originally Posted by C4boy
I gotta ask (seriously, because I know zilch about optispark)....How can it be the most effective and ingenius SBC distributor ever designed if there are so many problems with them? Not to mention the cost of replacement. Just one look at it's placement in the motor and I'm scratching my head asking, what were they thinking?
Originally Posted by Arkybill
I've got to agree with "the best design for a SBC". Yep, with 2 knock sensors (one on each side of the block) the 'puter can (and does) time each cylinder as needed. That's where the good gas milage comes from (IMHO).
And, IF the seals are still ok, it don't matter if the Opti gets wet. Hey, if the engine is warm, it'll dry off real quick. The old GM HEI ignition was very expensive ($175 just for the plug wires in 76) to work on.
I figure any thing that'll go to 100 K or so miles with no maintance, ain't no slouch.
And, IF the seals are still ok, it don't matter if the Opti gets wet. Hey, if the engine is warm, it'll dry off real quick. The old GM HEI ignition was very expensive ($175 just for the plug wires in 76) to work on.
I figure any thing that'll go to 100 K or so miles with no maintance, ain't no slouch.
tooThere is nothing much wrong with it at all really, its a bloody good system.
