Air shifters in stock?

[JP1738]

Is a change this big not normally brought to some kind of vote through SRAC or some other kind of public forum?

[littlemanjoe]

Originally Posted by MR DERBY CITY

Nice, this latest rule change brought to you by your friendly neighborhood Copo stocker.

Wouldn't surprise me any.

[Mark Yacavone]

Originally Posted by littlemanjoe

It looks like they will allow RPM shifting devices in stock for 2026.
Why do they want us to be like Super Stock?

I don't know where you're getting this from, but might as well.They have been allowing solenoid shifting inside the trans on year / models that never had electronics internally to begin with . Been going on for years.

Also, you've got Stocker guys putting up Y/T videos of them never using the clutch after the launch!
I'm told that a true clutchless trans is a better deal, but much more expensive.
So there ya go...More goodies for the entry level class LOL

[Robin Lawrence]

Originally Posted by Mark Yacavone

Also, you've got Stocker guys putting up Y/T videos of them never using the clutch after the launch!
I'm told that a true clutchless trans is a better deal, but much more expensive.
So there ya go...More goodies for the entry level class LOL

I run G Force 5 speed transmissions in my 13 Cobra-Jet. When I run in Stock i use the 1 Piece Sliders that are considered Non Clutchless. In a street version they have a 7 degree back cut to hold them in gear. In most stockers we get them with a 0 back cut to allow them to be pulled out of gear under power. Even with that modification it's very difficult to make the 1-2 and 2-3 shifts. Most times I over run my intended shift point as it hits the limiter before it unloads the slider and allows to be shifted.

The "Clutchless" sliders are split into 2 halves with springs holding them together while in neutral. When a gear is engaged the shift fork pushes one half of the split slider to engage the lugs on the gear. When you make a shift the net gear over rides the RPM the previous gear and that half returns to center on the hub. The hub has 3 roll pins that keep the split halves from over riding the center of the hub.

To use Clutchless sliders in my transmission I change 2 sets of hubs and sliders. If one wants to purchase those parts I would guess it would cost about $1,000.00.

My clutchless transmission is worth between .05 and .07 over the clutch assisted transmission. Changing nothing but the sliders allows me to shift at optimum RPM.

I will sometimes use a Rev Limiter offset per gear to "unload" the sliders in stock. It's slow but seems to be more consistent.

When I have been torn down for a National Record they rock the car in several gears to verify that I don't have a clutchless transmission. The split sliders will pop out of gear if you rock the car.

The clutch I use is a billet twin disk. With the counter weight at RPM I would break the linkage before I could disengage it LOL.

Stick with me for more tips on "Fun with Stick Shift"

Robin

[Robin Lawrence]

Originally Posted by Mark Yacavone

Also, you've got Stocker guys putting up Y/T videos of them never using the clutch after the launch!
I'm told that a true clutchless trans is a better deal, but much more expensive.
So there ya go...More goodies for the entry level class LOL

Oh yeah, almost forgot, to Mark's point I do believe there are Stockers who are running clutchless transmissions.

Robin

[Alan Roehrich]

Originally Posted by littlemanjoe

It looks like they will allow RPM shifting devices in stock for 2026.
Why do they want us to be like Super Stock?

Like Super Stock?


They were in Super (0.90) classes and bracket cars before they were in Super Stock.


I doubt Super Stock is where they're looking at taking you.....

[littlemanjoe]

SECTION 11A: STOCK CARS, DRIVETRAIN: 2, TRANSMISSION, AUTOMATIC
(Page 7) (02/25/2025)
Any model transmission, same make as car, with a maximum of three forward speeds
(unless OEM equipped with more than three forward speeds). O.D. gear not required,
reverse permitted. Transmission case must be OEM or aftermarket OEM replica from a
standard, automotive application as found in the Official NHRA Stock Car Classification
Guide. Aftermarket case must meet SFI Spec. 4.1. NHRA-accepted adapter plates
permitted. Modifications to shifting patterns are permitted, provided full shift pattern is
retained. Full shift pattern must include park and reverse. Any gear change must occur
as a result of an internal function of the transmission or from direct action by the driver.
Lockup converter permitted if OEM-equipped with lockup converter and OEM
transmission is used. Otherwise, lockup converters prohibited. Electronic transmission
controls for the electric shifting of automatic transmissions to shift via internal function of
the valve body only permitted in computer-controlled vehicles only; may shift by RPM or
time only, wires for line lock, wheel speed, driveshaft speed or GPS signal prohibited.
Otherwise, any gear change must occur as a result of an internal function of the
transmission or from direct action by the driver. Pneumatic, electric, etc. controls in all
noncomputer-controlled electronic fuel-injected vehicles prohibited. The use of air
assisted or electric shifter is prohibited in all Stock applications.

Beginning January 1,
2026, RPM-activated pneumatic, electric shifters permitted. Deepened stock or
aftermarket transmission oil pans permitted. Drilling of transmission case or rear of
engine block to adapt incompatible units prohibited. Functional neutral safety switch
mandatory. Transmission brake prohibited. Tailshaft modifications for bushing
replacement, or NHRA-accepted aftermarket tailshaft, permitted. Any car running
quicker than 10.99 must be equipped with a transmission shield meeting SFI Spec 4.1

[Dyno]

I used the Turbo Action E shift in my LS1 stocker 25 years ago. Made the 1 - 2 shift perfect every time. I think NHRA did this so everyone would have the same level racing world. The pre 97 cars never had the advantage of this. Use it if you want, don't if you want. Dyno