History Repeats itself

[Jeff Kempton]

Maybe one of you could clarify something for me. With the exception of the nine combos listed in the IHRA horsepower list on the IHRA website, don't all Pure Stock entries use the NHRA Stock factors to determine their natural class? In other words; once the V6 Mustang combo was in the NHRA Guide it also became eligible for Pure Stock at the NHRA factor, unless IHRA adjusts it, in which case the combo and revised factor would be added to their list along with the nine already listed.

If this is not correct then only those nine combos would be eligible to run Pure Stock, which is not the case.

Thanks are certainly due to Jesse for providing the technical info so that the late model production Mustangs are able to race in Super Stock and Stock as well as Pure Stock.

[ALMACK]

Originally Posted by Jeff Kempton

Maybe one of you could clarify something for me. With the exception of the nine combos listed in the IHRA horsepower list on the IHRA website, don't all Pure Stock entries use the NHRA Stock factors to determine their natural class? In other words; once the V6 Mustang combo was in the NHRA Guide it also became eligible for Pure Stock at the NHRA factor, unless IHRA adjusts it, in which case the combo and revised factor would be added to their list along with the nine already listed.

If this is not correct then only those nine combos would be eligible to run Pure Stock, which is not the case.

Thanks are certainly due to Jesse for providing the technical info so that the late model production Mustangs are able to race in Super Stock and Stock as well as Pure Stock.

Jeff:
To get the combo allowed into Pure Stock, IHRA needs to know the factory cam duration and overlap ( maybe even more info than that) and they also need to know the factory valve spring pressure(s)

That's where Jesse really helped to speed up getting the 3.7 into PS.

[Jeff Kempton]

Alan;

Thanks for clearing that up for me; I had forgotten about the additional cam specs required.

Jeff

[Jeff Kempton]

Does IHRA have a listing somewhere which shows which combos are approved for Pure Stock, and what the camshaft specs are?

[Dan Fahey]

Originally Posted by Jeff Kempton

Does IHRA have a listing somewhere which shows which combos are approved for Pure Stock, and what the camshaft specs are?

Yes mostly from older archives.
Use to be available easily from manufacturers.

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[Jeff Kempton]

Dan;

Could you post a link to the current list, or does IHRA not publish it for some reason?

Thanks

Jeff

[Dan Fahey]

Originally Posted by Jeff Kempton

Dan;

Could you post a link to the current list, or does IHRA not publish it for some reason?

Thanks

Jeff

www.NHRA.com has most of the specifications.
IHRA uses 99% of what they posted.
Otherwise we have to ping Jim Wood and Mike Baker..

Think it about time IHRA starts investing in their own Classification and Specifications Library.

Create a formal way to add new car specifications.
Instead of the current process.

IHRA could increase Stock and Super Stock participation dramatically getting all the New US Cars Specifications.

They would double participation of they started allowing IMPORTS...
Trumping NHRA.. Who is lazy on this too..

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