Who Wants a MSD Replacement for the Opticrap?
Registered User
Joined: Sep 2002
Posts: 870
From: Tallahassee, FL
Originally posted by Injuneer
One of the problems of producing a replacement distributor for the LT1 is the fact that no matter what you do, as long as you use the stock PCM to manage the engine, you need the low resolution pulse from the Opti. Without that signal, the PCM can not fire the injectors and shuts down the fuel system.
Go to the MSD website and look at their new "CPC" ignition system... possible to run 8 direct fire coils, with a standalone timing computer. Problem is, the CPC system needs a crank and cam position signal. It gets this by replacing a conventional distributor with a "plug"... essentially a replacement for the shaft of the original distributor with a cam postion sensor in it. What you need to convince MSD to do is to make a "plug" for the LT1 that can be inserted through a hole drilled in the back of the intake, and would have to provide a cam sensor signal that could be translated into the low res pulse for the Opti.... something I don't think would be that hard to do.
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Fred
94 Formula A3: 381/TH400/N2O
Detailed Mod's List
11.513@115.59 on motor; 11.162@127.67, 1.643 60' on a 125-shot. Going with a 275-shot this year
One of the problems of producing a replacement distributor for the LT1 is the fact that no matter what you do, as long as you use the stock PCM to manage the engine, you need the low resolution pulse from the Opti. Without that signal, the PCM can not fire the injectors and shuts down the fuel system.
Go to the MSD website and look at their new "CPC" ignition system... possible to run 8 direct fire coils, with a standalone timing computer. Problem is, the CPC system needs a crank and cam position signal. It gets this by replacing a conventional distributor with a "plug"... essentially a replacement for the shaft of the original distributor with a cam postion sensor in it. What you need to convince MSD to do is to make a "plug" for the LT1 that can be inserted through a hole drilled in the back of the intake, and would have to provide a cam sensor signal that could be translated into the low res pulse for the Opti.... something I don't think would be that hard to do.
------------------
Fred
94 Formula A3: 381/TH400/N2O
Detailed Mod's List
11.513@115.59 on motor; 11.162@127.67, 1.643 60' on a 125-shot. Going with a 275-shot this year
Registered User
Joined: Nov 2001
Posts: 3,515
From: Kansas
as long as you dont...
1. powerwash your motor
2. allow coolant to leak on the opti
you will have little to no problems with it.
now if you still convienced the opti is a POS for whatever reason then there is a few $700 options out there to take care of it.
1. powerwash your motor
2. allow coolant to leak on the opti
you will have little to no problems with it.
now if you still convienced the opti is a POS for whatever reason then there is a few $700 options out there to take care of it.
Registered User
Joined: Apr 2001
Posts: 1,132
From: Florida
Count Me in if you dont have to spend over 500 bucks on it and it does work Better than stock and is (more reliable)....
Anything other than that would be kinda useless in my opinion, especially since you can replace vented opti for under 200 bucks each.
My 2 cents,
Claude
Anything other than that would be kinda useless in my opinion, especially since you can replace vented opti for under 200 bucks each.
My 2 cents,
Claude
Registered User
Joined: Jun 2002
Posts: 481
From: Clarksville, IN
Originally posted by Josh-'97 WS6
Between LTCC and the Dynaspark opti, there is no reason to ever use a stock opti again, and no reason for MSD to get involved either.
Between LTCC and the Dynaspark opti, there is no reason to ever use a stock opti again, and no reason for MSD to get involved either.
Registered User
Joined: Aug 2002
Posts: 2,356
From: Madison Heights, MI
Something has to be done. There is such a HUGE following for an opti replacement. I hate my opti and I like reassurance that my car is as solid as it can be. build a replacement, this is a gold mine.
