TorqueHead vs Opti

[Doug Hoven]

Originally Posted by KRatcliff

The Optispark is considered a front mounted distributor, but a stock LT1 from GM comes with both a crank sensor and a cam sensor. Thus my comment when I quoted the rule book that an LT1 should be allowed to run a crank trigger since it comes with one from the factory.

The rule book is a bit out dated, but how can you not allow a car in the guide to run the same equipment as it came from the factory? Would tech bounce a purely stock LT1 because it has a crank sensor?

I do understand the argument that you could consider a crank trigger as being some sort of crank position sensor. The issue is that the crank sensor was not used to fire the ignition in Lt1 cars. Lt1's weren't actually fitted with a crank sensor until 1996. The computer still is only using the camshaft position, determined by the optical sensor behind the distributor cap, to fire both the spark and injectors. The crankshaft position was actually fitted to detect any misfires by using crankshaft speed and position to determine if there is a slight drop in crank speed at a certain interval.

[Adger Smith]

When did Pat become the National Tech director?
Sometimes it takes a long hard look at the wording and punctuation of the rule &
understanding the function of the factory systems
I would to go to the top to get the correct/final answer

[RJ Sledge]

....and whom are you referring too...?

RJ

[SSDiv6]

Originally Posted by Adger Smith

When did Pat become the National Tech director?
Sometimes it takes a long hard look at the wording and punctuation of the rule &
understanding the function of the factory systems
I would to go to the top to get the correct/final answer

Every time I am at a standstill with the Glendora office, I reach out to the Tim White, NHRA's Senior Director Of Engineering.

Tim worked for Delphi, Cummins and Penske Racing prior to joining NHRA. I have always enjoyed the technical subject conversations that have taken place with Tim and he has always backed up his responses with an email.

[GUMP]

The part numbers for the LT1 crank sensor.

12552427 Timing Cover

10190917 Reluctor Wheel

19170837 Crank Sensor

I have forwarded this to Pat for his consideration.

[Mark Lewis]

I got a call from Pat wanting to know if I ran a crank trigger, supposedly called several other racers wanting to know the same.
Time will tell what will happen. thanks Dan,

[Bill Moulding]

...

[Jim Whitehead]

Pat called me today.

[Dan Fahey]

Originally Posted by Mark Lewis

I got a call from Pat wanting to know if I ran a crank trigger, supposedly called several other racers wanting to know the same.
Time will tell what will happen. thanks Dan,

One way or another the vagueness in the rule will be written with clarity.
NHRA does it all the time.

Stock Eliminator does not lend well with the aftermarket industry.
Should be some sort of rule allowing bolt on upgrades.
Crate Motor offered some of that.
Like allowing under used engines such as big Caddy engines in BOP cars.
Bolt on 4bbls like on the mid70/80 Mustangs and Monzas.
Under used Ford 300cuin 6 with a 4bbl.
Or for that matter let the 6 cylinder AMC guys have the better heads.
Or flattop Pistons for the Low compression BOP cars.
74 Firebird with 10:1 compression would be a A stocker.
Much like Pure Stock Drags and FAST do.

Just my 2 cents

[Bill Grubbs]

Originally Posted by Dan Fahey

Crate Motor offered some of that.
Like allowing under used engines such as big Caddy engines in BOP cars.
Bolt on 4bbls like on the mid70/80 Mustangs and Monzas.
Under used Ford 300cuin 6 with a 4bbl.
Or for that matter let the 6 cylinder AMC guys have the better heads.
Or flattop Pistons for the Low compression BOP cars.
74 Firebird with 10:1 compression would be a A stocker.
Much like Pure Stock Drags and FAST do.

Just my 2 cents

Dan, Please go race Crate Motor. Numerous people have tried to help you. You just don’t seem to be very receptive.

Bill