TorqueHead vs Opti

[Dan Fahey]

Can a Torquehead System be used in place of an Opti - PCM In Stock?

[GUMP]

No. You have to run the Opti Spark. You are allowed a crank trigger. The Opti Spark works just fine.

[Dan Fahey]

Originally Posted by GUMP

No. You have to run the Opti Spark. You are allowed a crank trigger. The Opti Spark works just fine.

Just spoke to Tech Director Pat Cvengros.
Cannot use crank trigger in Stock with an Opti
can in Super Stock

[GUMP]

Originally Posted by Dan Fahey

Just spoke to Tech Director Pat Cvengros.
Cannot use crank trigger in Stock with an Opti
can in Super Stock

The crank trigger has been allowed in Stock for the LT1 since the 1990's. I built and raced three LT1 F-Bodies. All with crank triggers. I can't remember how many times I was torn down. I never had an issue.

If you want run a stock ECU, go ahead....

[KRatcliff]

Originally Posted by Dan Fahey

Just spoke to Tech Director Pat Cvengros.
Cannot use crank trigger in Stock with an Opti
can in Super Stock

Gump is correct. Under section 8 for Stock in the rule book:

DISTRIBUTOR
Any battery-operated, stock-type ignition permitted. Crank trigger systems prohibited unless OEM distributorless ignition. Distributorless ignition must retain OEM number of coils. See General Regulations 8:3.

In this case for your LTjuan the Opti is considered distributorless and a crank trigger is permitted.

One of the issues with the TorqueHead is the multiple coils. I don't know why you would want them over a single coil, but that is beside the point. Your combo only came with a single coil (it is plenty) and that is all that is permitted.

[GUMP]

I will add that a GOOD aftermarket ignition box and coil is worth the investment.....

[Dan Fahey]

Originally Posted by KRatcliff

Gump is correct. Under section 8 for Stock in the rule book:

DISTRIBUTOR
Any battery-operated, stock-type ignition permitted. Crank trigger systems prohibited unless OEM distributorless ignition. Distributorless ignition must retain OEM number of coils. See General Regulations 8:3.

In this case for your LTjuan the Opti is considered distributorless and a crank trigger is permitted.

One of the issues with the TorqueHead is the multiple coils. I don't know why you would want them over a single coil, but that is beside the point. Your combo only came with a single coil (it is plenty) and that is all that is permitted.

Not really concerned about the multiple coils.
Do not understand NHRA’s reasoning but that is the rule.

It is a nice bolt on system and ECU easy to tune.
Our B-Body clubs like them.
Especially the Boosted crowd.
Agree single Coil is enough.

Until this weekend was fine using TunerCat for ODB1 PCM.
Been a 15 year labor of love learning most of the Files.
Excellent ECU. Opti is reliable.
Just discovered it’s limits.

Thanks for the help.

D

[KRatcliff]

Originally Posted by Dan Fahey

Not really concerned about the multiple coils.
Do not understand NHRA’s reasoning but that is the rule.

It is a nice bolt on system and ECU easy to tune.
Our B-Body clubs like them.
Especially the Boosted crowd.
Agree single Coil is enough.

Until this weekend was fine using TunerCat for ODB1 PCM.
Been a 15 year labor of love learning most of the Files.
Excellent ECU. Opti is reliable.
Just discovered it’s limits.

D

I use the Holley Opti replacement and I am not aware of any limits I have encountered so far. Can you elaborate?

[SSDiv6]

Originally Posted by Dan Fahey

Not really concerned about the multiple coils.
Do not understand NHRA’s reasoning but that is the rule.

It is a nice bolt on system and ECU easy to tune.
Our B-Body clubs like them.
Especially the Boosted crowd.
Agree single Coil is enough.

Until this weekend was fine using TunerCat for ODB1 PCM.
Been a 15 year labor of love learning most of the Files.
Excellent ECU. Opti is reliable.
Just discovered it’s limits.

Thanks for the help.

D

Dan,

With all due respect, in lieu of trying to reinvent the wheel. Listen to the guys that are running the Opti-Spark system. On the long run, it will be more reliable, better performance and cost effective.