Factory X is dead

[Mike]

The final Chicago entry list has 4 entries. Time to get a shovel and dig a hole.

Wasn't there a controversial rule change last year?

 

[65 Goatboy]

Final entry list? Today is Monday.

 

[mick]

pulleygate ..... i like the idea of the class, but i personally get just as much enjoyment watching go fast super stock classes

 

[Mike]

Isn't the deadline the Monday before race weekend?

 

[stitcherbob]

Make Mountain motor the official Pro Stock class. Keep Pro Mod and bring back Modified.

 

[Cliff]

Would like to see mountain motor w the 969 motors. Ya know, mountain motor is as close as it gets to the old A/Gas class.

 

[Litefoot]

Would like to see mountain motor w the 969 motors. Ya know, mountain motor is as close as it gets to the old A/Gas class.

Just curious cliff, did A gas have motors that big back in the day ?

 

[twostep]

I like the idea of A/FX but I've always wondered how it would succeed being bracketed so closely by Factory Stock and Pro Stock. Apparently, not that well.

 

[mick]

seems like the preference is to keep the blower off and run as FSS. 20 vs 4 this weekend @ joliet
2024 had (8) factory X and (16) FSS

 

[twostep]

Just curious cliff, did A gas have motors that big back in the day ?

No. It wouldn't have made any sense to begin with. The minimum weight/CID for A/Gas was 4.00 which would have required a 3850 pound car running a 969. Made a lot more sense to run a 500-something inch engine in a 2500 pound tri-five Chevy or an Anglia.

They're allowed in MMPS now but I don't know of anybody running an engine bigger than about 820-840 or so.

 

[twostep]

seems like the preference is to keep the blower off and run as FSS. 20 vs 4 this weekend @ joliet
2024 had (8) factory X and (16) FSS

FSS cars run superchargers, no?

 

[Rajunz]

I never really got the difference between Factory Stock and Factory X? Just combine them into something that works.

 

[none]

FSS does run blowers. The big problem is that a "Stock" chassis (even with the cage) will only certify to 7.50 seconds. So every time they approach that number, they need to be pulled back, and that is done by changing the overdrive.

FX cars a full chassis cars inside a "Stock" shell. They are also much lighter and they will certify to 6.00 (just like a PS car). The Stanfields use the same engine for both.
Page 209 of the 2025 Rulebook has the engine and overdrive specs for each make/model.

Alan

https://www.nhraracer.com/Files/Tech/2025%20NHRA%20Rulebook.pdf

 

[sammi]

The FX deal seemed like the answer to a question nobody was asking.

 

[none]

They should give the FX cars a bigger tire and make that the new Pro stock. Different cars/engines could possibly light a fire under the Pro Camaro deal. Who knows

 

[Litefoot]

No. It wouldn't have made any sense to begin with. The minimum weight/CID for A/Gas was 4.00 which would have required a 3850 pound car running a 969. Made a lot more sense to run a 500-something inch engine in a 2500 pound tri-five Chevy or an Anglia.

They're allowed in MMPS now but I don't know of anybody running an engine bigger than about 820-840 or so.

Thanks for info

 

[none]

I could be wrong but I believe that the Mountain Motor PS class has an 845 CI limit.

The only 900+ class I know of is Nitrous Pro Mod. And of course TS.

Alan

 

[Litefoot]

I could be wrong but I believe that the Mountain Motor PS class has an 845 CI limit.

The only 900+ class I know of is Nitrous Pro Mod. And of course TS.

Alan

Thanks Alan and Carl, been away from racing for a few years, didn’t know they were that big

 

[twostep]

I could be wrong but I believe that the Mountain Motor PS class has an 845 CI limit.

The only 900+ class I know of is Nitrous Pro Mod. And of course TS.

Alan

That's what I get for depending on internet articles which clearly stated no limit but there was nobody known to be running anything bigger than 840. That's not the case; should have asked you first. The actual number is 843.

 

[ch streetcars]

I could be wrong but I believe that the Mountain Motor PS class has an 845 CI limit.

The only 900+ class I know of is Nitrous Pro Mod. And of course TS.

Alan

I really wish you were too busy with your drag racing day job, but , man it is good to hear from you replying with your knowledge and insight! Maybe the Mater's can pitch in and start the ARHRA ?