Forum: HoseHeads Sprint Car General Forum (go)
Moderators: dirtonly  /  dmantx  /  hosehead

Are Brodix BD heads legal for WoO sprint car competition? 

Thanks in advance

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

They should not be legal . woo rules do not allow you to change the valve sequence. Canted valve also not legal. They have a max bore size, rod length, 4/7 swap and allow no clean up over 410 from what I understand. The rule book has been allowing a smaller and smaller box to work in as of late.

Run whatever you want, as long as you make weight

Thanks.  Does anyone know for sure?  Interesting comments.  This is fun. 

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

Never seen them tech anything, roll onto scales, make weight its official, go to front stretch, then back to trailer.

As long as every soul competing runs the same stuff, no need to tech.  Thank God Ford and Mopar pulled out so all is right with the world.  I hear there is a kid running a chev with Ford heads which must be stopped.  Its just insane.

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

Brodix BD heads have been out for many years(early 2000's), nothing new there.

Are they legal?  Remember heads off grandmas early 70s country squire station wagon small block are outlawed. 

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

Just couldn't resist pushing your agenda eh? You've done so well lately too!

Ol Uncle Johnny's 1969 little 302 Boss Mustang as well...... far too exotic for the amazing WORLD OF OUTLAWS 45 years later!

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

So are Sheldon's heads legal or do we look the other way since they are bolted to an sbc?

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

Is that a LS engine?  Chad Kemenah had the same heads on at Nationals last year!

do it in the dirt

do it in the dirt

I dont believe the "Nationals" follows 100% WoO seasonal  rulebook. (alltho getting closer and closer)  better head design for the SBC has been out for years, the theory of a BBC head is (also) better,to which has been in use for many many years, as well as the basic design of Mopar And Ford, Thus Pontiac and others were investigated to deem a benifit,  Dont be fooled, if you have to open the hood on your 70 mustang to do a comparison, save yourself the time, intake runner,volume,valve angles,combustion chambers , are all extreemly different and massaged with one thing in mind , NOT driveability from point A to point B,this is full competition style engineering  for those wishing to pound on thier chest and point out the X brand from the A brand heads , feel free to do so i guess,  RnD on top engine builders has been exhausted to the rules requirements.. its just that simple.  sure theres something better, but, is it legal?

2014 WOO engine rules.  I would say that by rule J they would not be legal as the location of the valves is not "traditional" for a chevy.

15.1 Engines

A.) Only small block V-8 engines with the cam in the block and a maximum of 410.00 cubic inches of displacement (tolerance +/- 0.000) will be permitted. The formula 6.2932 x bore² x stroke will apply. Big block engines will not be permitted.

B.) The engine must be mounted in-line with the driver and the drive-line must pass beneath the driver on center through the driver compartment. Offset engines and/or offsetting the position of the engine will not be permitted.

C.) The engine block and cylinders must be machined from cast aluminum. Billet machined blocks and/or cylinder heads will not be permitted.

D.) Engines with the magneto and/or distributor in a forward mounted and/or front mounted position must be approved prior to competition. Engines with the magneto and/or distributor mounted in the stock OEM production position for the block and/or engine must be approved prior to competition.

E.) Only normally aspirated engines will be permitted. Turbo chargers, super chargers and/or forced induction of any type and/or description will not be permitted.

F.) The maximum engine cylinder bore size shall be 4.165.

G.) All engine cylinder sleeves (inserts) must be machined from an iron and/or steel alloy.

H.) Titanium crankshafts, connecting rods and/or rod caps will not be permitted.

I.) Only two (2) valves and one (1) spark plug will be permitted per cylinder.

J.) Cylinder heads must retain a traditional valve pattern. Rotation of the valves will not be permitted. Cantered or splayed valve cylinder heads must be approved prior to introduction into competition.

K.) Only steel connecting rods with a maximum length of 6.000 inches will be permitted.

L.) All oil pans must have an inspection plug. The inspection plug must be a #12AN fitting or 1.00" pipe plug. In the event that an engine does not have an inspection plug the oil pan must be removed for inspection prior to competition.

M.) Only throttle plate (butterfly) and shaft throttle body styles with round circular bores will be permitted. The maximum throttle bore as measured at the throttle plate (butterfly) may not exceed 3.000 inches in diameter. Slide plate, rotary cylinder, and/or other styles will not be permitted for competition. Carbon fiber manifolds and/or any other injection type pieces manufactured from carbon fiber will not be permitted.

N.) A maximum of 16 fuel nozzles, utilizing two (2) per cylinder will be permitted.

One (1) nozzle must be placed in the cylinder head and one nozzle must be placed in the injector.

O.) A minimum of two (2) throttle return springs must be used to mechanically return the throttle to a fully closed position.

P.) Only magneto-type ignitions will be permitted. A single crank-trigger type system will be permitted as a back up ignition system. One (1) switch that alternates the current between the magneto and the crank trigger may be mounted to the dashboard within the driver’s reach. Multiple coil-pack ignitions will not be permitted.

Q.) Steel and stainless steel headers will be permitted. Titanium headers will not be permitted.

R.) New engine components and/or new engine configurations must be submitted and approved per the World of Outlaws STP Sprint Cars Series Engine Builder’s Guide prior to being introduced into competition.

It must be stopped. 

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

Also according to rule "A", your engine must be EXACTLY 410ci.  If they measure and calculate it at 409.9999ci or less, you would be illegal.

You didn't read it very well,  It says MAXIMUM of 410.0000 ci.  with a +/- of 0.00000.  That means 410.00001 is illegal, however 360 is ok, 323 is ok, 409.899 is ok, etc..

Obviously they intend the rule to be anything up to 410 is acceptable, but regardless of the word maximum, a tolerance of +/- 0.0 would indicate that it can't be any larger or smaller.

I wonder why they calculate displacement using the formula stated in Rule A instead of B/2squared X Pi X Stroke X No. of Cyl. which is how they would calculate it in any fundamental geometry class, the product is not the same ?