AFM in STU

[Greg Amy]

Seems to me that the formula classes car by displacement to weight, which is an assumed HP basis.

Actually, while you're inferentially correct ("displacement to weight, with assumed HP") I think you're off the mark in that while you are assuming it's based off of stock output/displacement, the category is actually assuming relatively-equal modified (resulting) output/displacement. Removing non-standard restrictions such as varying AFMs would tend to equalize that.

Get past that IT mindset and it "kinda" makes more sense...ain't sayin' you'll agree, just sayin'... - GA

On edit: Actually, in re-reading your response, I think you're saying the same thing. Were one to take that concept further, then the category could remove other reasonable non-standard restrictions, such as intake manifolds and equalizing throttle bodies...in the end, you'll never make different engines with equal output no matter how hard you try, but the variables are minimized.

[Rabbit07]

[Chip42]

while removing the stock "measuring" devices is a good thing for parity, the variation of intakes, TBs, head, and overall engine designs will certainly yield big winners and big loosers.

this is why I am a big fan of the alternate minimum weight for known over/under performing engines. the tables in STU are a good start, but don't address swaps (kind of a big deal in STx). GTL would be a better place to look for the type of list I am thinking of where allowed mods are all equal but the toyoter 4A-GE would be, say 1900 lbs in STL vs. the honda B16 (same bore, stroke, displacement) at a higher 2200. obviously, this would need some run-time to develope and can't just be thrown out there with any hope of success. but the idea I think has merit. it would make the "forbidden" motors legal, but heavy, and the stuff that hasn't got a prayer currently a potentially competitive mill given an appropriate chassis.

agreed in that the term "metering" needs to be rethaught. a CRB ruling, new term for the alternate definition, and having BOTH in the glossary in the GCR would be a wise decision.

[Greg Amy]

I suggest a better wording of the rule might be:

"All cars shall use the installed engine’s stock air throttling device (e.g., throttle body, carburetor) and intake manifold, unless noted otherwise."

GA

[CRallo]

carbs meter fuel AND air and are known to have metering screws which do not measure anything, they control the flow...

They used an example to avert confusion and there is still an issue?

meter and measure are not one and the same...

Maybe the IT guys misused the word and caused the confusion in the first place?

[Z3_GoCar]

carbs meter fuel AND air and are known to have metering screws which do not measure anything, they control the flow...

They used an example to avert confusion and there is still an issue?

meter and measure are not one and the same...

Maybe the IT guys misused the word and caused the confusion in the first place?

http://www.neo.ne.gov/phase1/glossary.htm

Metering:
The process and methods of utilizing devices to measure the amount and direction of electrical energy flow; particularly for end-use.

[Eagle7]

http://www.merriam-webster.com/dictionary/metering
Definition of METER

transitive verb
1
: to measure by means of a meter

2
: to supply in a measured or regulated amount

3
: to print postal indicia on by means of a postage meter

[anthony1k]

I suggest a better wording of the rule might be:

"All cars shall use the installed engine’s stock air throttling device (e.g., throttle body, carburetor) and intake manifold, unless noted otherwise."

GA

Request to adapt the wording above was sent to the CRB.

GA, thank you for the suggestion.

[Greg Amy]

Change is official, see Feb Fastrack.

http://cms.scca.com/documents/Fastra...strack-feb.pdf