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

Opti Limits

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Old 02-04-2013, 06:52 PM
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Default Opti Limits

Hey guys I was thinking hypothetically, if someone was building a standing mile car and was looking to go over 200mph and well over 1k hp would it be possible to do it with the opti?

As in, is there a limit at which you can only spin an opti so high or send only such a strong spark through it without it imploding at a substantially higher rate then we see on more mildly nodded setups.

I'm not askin if it would be smart to retain it, only if there is a service limit to the opti which could be loosely correlated to a hp figure.
Old 02-04-2013, 07:14 PM
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My experience a has shown they don't like a lot of RPM. Over 7500 I had issues with the rotor slinging blades. After I addressed that I had optical sensor failures, with evidence of contact with the trigger wheel. I would use a crank trigger, and put a distributor in the back.
Old 02-04-2013, 09:01 PM
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Originally Posted by Ed Wright
My experience a has shown they don't like a lot of RPM. Over 7500 I had issues with the rotor slinging blades. After I addressed that I had optical sensor failures, with evidence of contact with the trigger wheel. I would use a crank trigger, and put a distributor in the back.
I didn't even have to spin to 7000 to kill rotors. Had to move over to a distributor setup for the strip.
Old 02-04-2013, 09:07 PM
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Jeff Green's car is well over 1000hp last I heard he was balancing rotors himself and running stock optis. Running a stock pcm too though so only turning 7200
Old 02-04-2013, 09:17 PM
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Originally Posted by fex77k
I didn't even have to spin to 7000 to kill rotors. Had to move over to a distributor setup for the strip.
The rotors are an easy fix. MSD rotors should be OK to at least 7000. They didn't exist when I still had one. Large as that rotor, the tip of that blade is really moving at ten grand. LOL
Old 02-05-2013, 07:33 AM
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Originally Posted by Ed Wright
My experience a has shown they don't like a lot of RPM. Over 7500 I had issues with the rotor slinging blades. After I addressed that I had optical sensor failures, with evidence of contact with the trigger wheel. I would use a crank trigger, and put a distributor in the back.
what he said^ my opti lived for 4 years behind my 7krpm 355......it ate the rotor 3 times on my 383 spinning well north of 7000 before i tossed it for a reg dizzy
Old 02-05-2013, 08:01 AM
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if i was building a 200mph car i wouldnt be running an opti. its just too easy to eliminate, consider how much money will be invested into the rest of the car.
Old 02-05-2013, 02:52 PM
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Originally Posted by vtec
if i was building a 200mph car i wouldnt be running an opti. its just too easy to eliminate, consider how much money will be invested into the rest of the car.
If I was building a 200 mph mile car it wouldnt be an LT1... But hey if your pockets are deep enough and its your mission. All power to him
Old 02-05-2013, 03:35 PM
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Originally Posted by Ed Wright
The rotors are an easy fix. MSD rotors should be OK to at least 7000. They didn't exist when I still had one. Large as that rotor, the tip of that blade is really moving at ten grand. LOL
I've wasted stock and aftermarket optis in just about every way you can, no need to run one if you don't have to.
Old 02-05-2013, 04:18 PM
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Originally Posted by fex77k
I've wasted stock and aftermarket optis in just about every way you can, no need to run one if you don't have to.
I agree. I don't miss having one at all. LOL
Old 02-06-2013, 10:36 AM
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Originally Posted by fex77k
I didn't even have to spin to 7000 to kill rotors. Had to move over to a distributor setup for the strip.
You're such a badass
Old 02-06-2013, 09:28 PM
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Originally Posted by sweetbmxrider
You're such a badass
I live my life a quarter mile at a time.
Old 02-07-2013, 09:14 AM
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Originally Posted by fex77k
I live my life a quarter mile at a time.
Rumor has it, you'll die before going back?
Old 02-07-2013, 10:31 AM
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Originally Posted by fex77k
I live my life a quarter mile at a time.
Dude I almost had you!
Old 02-09-2013, 01:00 AM
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Originally Posted by TAEnvy
Hey guys I was thinking hypothetically, if someone was building a standing mile car and was looking to go over 200mph and well over 1k hp would it be possible to do it with the opti?

As in, is there a limit at which you can only spin an opti so high or send only such a strong spark through it without it imploding at a substantially higher rate then we see on more mildly nodded setups.

I'm not askin if it would be smart to retain it, only if there is a service limit to the opti which could be loosely correlated to a hp figure.
run a lot of boost and keep the rpm reasonable and it can be done. you would want to change to a different ecm though.



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