LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Opti Eliminator preview...

Thread Tools
 
Search this Thread
 
Old Feb 17, 2011 | 08:45 PM
  #1  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default Opti Eliminator preview...











Here are some mock up type pictures so you guys can visualize what I'm doing. The cam sensor will have an aluminum bracket that will be set up by me for the correct airgap and aligned for TDC. Also pictured is the signal converter that will make the stock pcm happy with nice, consistant square wave signals. Sorry it's a frigid 40 degrees outside right now, so just imagine the big crank trigger wheel and sensor on the balancer with a powdercoated bracket

Originally Posted by Wicked94Z
Yes it will still utilize the optispark as a distributor, but I believe an aftermarket cap & rotor will not have any reliability issues unless some of you are running HVC II coils on a stock computer

The only "difficult" part of this was finding the right high quality electronics capable of delivering the very high resolution the LT1 PCM needs. I believe I have gotten the combination correct, and will begin testing on a local stock LT1 in the next month or so. This will be similar to the design of the original Electromotive kit from ~10 years ago, however my design will give both the high and low resolution signals for trouble-free sequential injection.

Another application I see for this is relatively low cost EFI retrofitting to a traditional sbc/bbc considering an LT1 PCM and harness can be had for less than 150 dollars. I have a compatible reluctor and pickup for a traditional distributor in the works, but not as far along as the opti replacement setup.

Tentative pricing for this setup will be ~550 dollars, which would include a new non-optispark base unit, msd cap/rotor, and all bracketry, sensors, reluctors, wiring harness, etc.

Last edited by Wicked94Z; Feb 27, 2011 at 05:49 PM.
Reply
Old Feb 17, 2011 | 08:46 PM
  #2  
Lawhead's Avatar
10 Second Club
10 Year Member
iTrader: (14)
 
Joined: Aug 2010
Posts: 2,397
Likes: 2
From: \
Default

Ohhhh my please get this done by about August that would be nice
Reply
Old Feb 17, 2011 | 08:53 PM
  #3  
05HD's Avatar
TECH Fanatic
 
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
Default

Are those for a mag pickup? Can you take a pic with a size reference like a dollar bill or a cell phone or something? The teeth on the big wheel look kind of shallow to me but it is hard to tell.
Reply
Old Feb 17, 2011 | 08:55 PM
  #4  
wrd1972's Avatar
TECH Veteran
20 Year Member
Photogenic
Photoriffic
iTrader: (12)
 
Joined: Mar 2006
Posts: 4,668
Likes: 5
From: Central Kentucky
Default

Originally Posted by 05HD
Are those for a mag pickup? Can you take a pic with a size reference like a dollar bill or a cell phone or something? The teeth on the big wheel look kind of shallow to me but it is hard to tell.
You do know that is a raised panel garage door the parts are propped up against dont you?
Reply
Old Feb 17, 2011 | 08:59 PM
  #5  
05HD's Avatar
TECH Fanatic
 
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
Default

Originally Posted by wrd1972
You do know that is a raised panel garage door the parts are propped up against dont you?
Yeah. What is your point?

There is no size reference in the picture unless you happen to have the dimensions on the panels of his garage door.
Reply
Old Feb 17, 2011 | 09:02 PM
  #6  
Lawhead's Avatar
10 Second Club
10 Year Member
iTrader: (14)
 
Joined: Aug 2010
Posts: 2,397
Likes: 2
From: \
Default

The parts arnt that big its and Opti eliminator so figure about the size of an opti

Just a guess though
Reply
Old Feb 17, 2011 | 09:05 PM
  #7  
05HD's Avatar
TECH Fanatic
 
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
Default

Originally Posted by Lawhead
The parts arnt that big its and Opti eliminator so figure about the size of an opti

Just a guess though
My perception is that the big one is about the size of the crank pulley, given the three holes in it.
Reply
Old Feb 17, 2011 | 09:10 PM
  #8  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

the teeth are shallow but it'll provide a great waveform. The sensor has a very small (.01") pickup on it and it does fine up to 50kHz or so. The big wheel is ~8" in diameter the smaller wheels will fit inside an opti.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-1

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-2

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-3

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-4

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-5

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-6

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-7

10 Camaros You Should Never Buy

 
story-8

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-9

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
Old Feb 17, 2011 | 09:17 PM
  #9  
killerz97's Avatar
Launching!
iTrader: (1)
 
Joined: Oct 2010
Posts: 236
Likes: 0
Default

So is it going to have a digital or analog signal? Any idea on price?
Reply
Old Feb 17, 2011 | 09:22 PM
  #10  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

the pcm will get the digital signals like it wants, I have a signal conditioner to get the square waves.
Reply
Old Feb 17, 2011 | 09:57 PM
  #11  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

Originally Posted by killerz97
So is it going to have a digital or analog signal? Any idea on price?
Pricing is still a tentative ~550 for the whole setup.
Reply
Old Feb 17, 2011 | 10:00 PM
  #12  
defaultexistence's Avatar
TECH Fanatic
iTrader: (11)
 
Joined: Sep 2005
Posts: 1,954
Likes: 1
From: fort walton beach,fl
Default

i'm in for a finished product! guaranteed
Reply
Old Feb 17, 2011 | 10:31 PM
  #13  
SoxXpupPeT's Avatar
TECH Junkie
iTrader: (34)
 
Joined: May 2008
Posts: 3,431
Likes: 1
From: Yonkers, NY
Default

Such an awesome price for something this promising! i wish i didnt have to replace my opti asap last week... i woulda loved to be a guinea pig for your set up wicked im sure i will be one day tho
Reply
Old Feb 18, 2011 | 12:01 AM
  #14  
Fazz73jr's Avatar
TECH Regular
iTrader: (3)
 
Joined: May 2010
Posts: 432
Likes: 0
From: Fontana, Ca
Default

Looks good!! the big wheel going to mount on the dampner? I'll be your guinea pig!! although I maybe pulling my motor back out soon, LMK when you have a little spare time, id like to get a second opinon on my issue... sorry for the little ...
Reply
Old Feb 18, 2011 | 12:08 AM
  #15  
itSSlowZ28's Avatar
TECH Enthusiast
15 Year Member
iTrader: (5)
 
Joined: Nov 2005
Posts: 515
Likes: 0
From: North Augusta, SC
Default

if this works, count me in
Reply
Old Feb 18, 2011 | 07:29 AM
  #16  
95mysticta's Avatar
TECH Fanatic
15 Year Member
iTrader: (4)
 
Joined: Aug 2007
Posts: 1,368
Likes: 10
From: Oshawa, Ontario
Default

Great news!!! When are these going to be available is the question everyone wants to know? Im putting my motor in come spring time and would love to have this setup on it and having not to have to touch that bloddy opti for a long long long time!
Reply
Old Feb 18, 2011 | 08:15 AM
  #17  
T/ALT1's Avatar
TECH Resident
iTrader: (3)
 
Joined: Dec 2004
Posts: 852
Likes: 2
Default

Awesome, wish this would have been around 10yrs back. Goodluck. Later Clint
Reply
Old Feb 18, 2011 | 10:14 AM
  #18  
camarolvr69's Avatar
On The Tree
 
Joined: Oct 2006
Posts: 166
Likes: 0
From: Pensacola, FL
Default

I'm getting a damn red x for the pic. Could you email it to me? Might be interested as my motor is out of the car at the moment lol

callstreamer@gmail.com
Reply
Old Feb 18, 2011 | 10:20 AM
  #19  
sweetbmxrider's Avatar
TECH Addict
iTrader: (13)
 
Joined: Sep 2008
Posts: 2,768
Likes: 3
From: jersey shore
Default

I wouldn't want to spend all that money and have to worry about the opti at higher rpms. Couple hundred more and you are at an efi conn. setup with 8 coils.
Reply
Old Feb 18, 2011 | 10:28 AM
  #20  
speedracer2536's Avatar
TECH Resident
iTrader: (15)
 
Joined: Dec 2007
Posts: 751
Likes: 0
Default

Im getting my new motor in two weeks.. I would be down to throw this in and give it a try.. would obviously pay for parts..
Reply



All times are GMT -5. The time now is 04:16 PM.

story-0
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-1
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-2
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-3
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-4
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-5
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-6
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-7
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-8
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-9
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE