updated 1-25-12

.400 Pro-Tree
No Break Out

 
01* Tires limited to D.O.T. Drag Radial size 275/60/15 or Mickey Thompson ET Drag 28X10.5 part numbers 3055 or 3055S.
02* Must have stock frame rails intact from the drivers seat forward.
* Pre 1979 vehicles may have a bolt on aftermarket subframe or a Mustang II front suspension conversion.
03* Bolt on tubular K-member and A-arms are permitted
04* Rack and pinion conversions allowed
05* No wheelie bars
06* Must have all stock type working headlights and tail lights.
07* All body panels other than hood and spoiler must have stock dimensions, no part may have exposed fasteners except the hood and deck lid.
08* Aftermarket or fabricated front valance, chin spoiler or bumper cover must retain the OEM factory dimensions at the leading edge.  No part of the car may protrude more than 2" forward of the factory leading edge.
09* lexan windows permitted but must look like stock glass from 15' away
10* Total forward facing hood scoop height limited to 9 inches measured from the base of the windshield to highest point of the scoop.  Any rear opening cowl hood or clear forward scoop permitted.
11* Must retain firewall in the stock location
12* No gutted interior, must have 2 front seats, factory type dash, covered floor and door panels.
13* Must measure within 1" of factory wheelbase, body may not be moved from stock location
14* All vehicles must maintain a minimum ride height of at least 2.5" while at rest and at race weight.  No part my hang down lower that 2.5" off the ground including exhaust.
15* Gasoline or E85 will be the only fuels permitted, except roots blown entries which are allowed methanol
16* Only one power adder permitted per car
17* Electronic traction control of any type not permitted.  7531 or 7730 is allowed.
18* Single carb only except for roots supercharged units or NA cars
19* All entries must have mufflers except for turbo cars
20* Weights may be adjusted at any time to insure parity, including during a race before eliminations in unlikely extreme circumstances.

NITROUS
* small block nitrous, 20 degree valve angle Ford, 23 degree Chevy & 18 degree Mopar 2800lbs
* small block nitrous, less than  20 degree valve angle Ford, 23 Chevy & 18 Mopar 2900lbs
* Small blocks larger than 440ci add 50lbs
* Small blocks larger than 470ci add 100lbs
* Nitrous big blocks, conventional within 2 degrees of stock OEM valve angle 3250lbs. 
* Nitrous big blocks, conventional within 2 degrees of stock OEM valve angle are limited to a fogger with two  .098" orifice nitrous solenoids without a progressive controller or
a single .125" orifice solenoid fogger with a progressive controller  or a plate systems using a single solenoid with up to a .157" orifice with a progressive controller.  (will be checked).
* No 5" or larger bore space blocks 
* BBC limited to 10.2 deck height
* Big blocks limited to 640ci.
* Conventional big blocks smaller than 500ci may deduct 100lbs
* Big blocks with more than 2 degrees less than stock valve angle or non conventional design, examples..... C-460, Blue Thunder, Pro-Stock, Big Chief, Big Duke, spread port, Hemi big block or equal head will not be permitted a fogger, fogger nozzle plate or manifold mounted spray bar, only a conventional removable single spray bar plate system limited to a single nitrous solenoid with a maximum orifice size of .110".  Minimum weight of 3300.

N1* Big blocks limited to a cast one piece manifold.
N2* Small block entries may use a second carburetor with a 50lb penalty.
N3* Nitrous limited to 1 stage.  Second system solenoid coils must be removed.  There will not be any exceptions or one time race allowance to this rule.
 

TURBO
* non-intercooled 3000lbs
* air to air intercooled or water/methanol injected 3050lbs
* air to water intercooled 3200lbs
* E85 fueled add 100lbs
* 80mm or smaller may deduct 50lbs
* No Billet heads permitted
* 6cyl deduct 200lbs from small block weight
* 4cyl deduct 300lbs from small block weight
* No forced induction big blocks

T1* Turbocharger entries limited to a single true 88mm. Turbo must not protrude outside the car's body in any way.  All air entering the turbocharger must pass through the turbocharger inlet. Surge and/or recirculation slits prohibited on inlet housing. Turbocharger compressor wheel must be constructed of cast aluminum only, billet and exotic material wheels prohibited. Compressor wheel and housing may not be stepped, clipped or notched to meet impeller tip-to-tip dimension the contours must be continuous features from the inducer to the wheel exducer. Inlet reducers prohibited. Must be of conventional impeller and housing design and type.  No large frame turbos permitted.
T2* Models: Garrett GT47\88, Turbonetics HP\88, & Precision HP\8847H - maximum size of 88.0 mm /3.464” – inducer wheel diameter at the point where the leading edge of the compressor wheel meets the inlet housing. Inlet housing is permitted a maximum inlet diameter of 3.544”where the leading edge of the compressor wheel meets the housing.
T3* Water/methanol injection allowed with gasoline being the primary fuel only.  At any time a racer can be instructed to empty their water/methanol tank and refill with washer fluid provided by tech
T4* Air to water intercoolers allowed.  Must be solidly mounted and secure.  May be mounted in passenger area if seat can be cut to fit around it.  Seat doesn't have to be functioning.
T5* BorgWarner S500 88mm turbo allowed, add 200lbs.

SUPERCHARGED

* non-intercooled 3000lbs
* air to air intercooled or water/methanol injected 3050lbs
* air to water intercooled 3200lbs
* roots blown alcohol 3200lbs
* E85 fueled add 100lbs
* blower models YSI, F1A or smaller may deduct 50lbs
* No Billet heads permitted
* 6cyl deduct 200lbs from small block weight
* 4cyl deduct 300lbs from small block weight
* No forced induction big blocks

S1* Supercharger limited to Vortec X Trim, Procharger F1C, Roots type 8-71 or smaller units at base weights. 
S2* Water/methanol injection allowed with gasoline being the primary fuel only.  At any time a racer can be instructed to empty their water/methanol tank and refill with washer fluid provided by tech
S3* Air to water intercoolers allowed.  Must be solidly mounted and secure.  May be mounted in passenger area if seat can be cut to fit around it.  Seat doesn't have to be functioning.
S4* Vortech Xi or Procharger F1R allowed, add 250lbs.


NATURALLY ASPIRATED
* small block single carb 2600lbs
* small block dual carbs 2700lbs
* Big block conventional within 2 degrees of stock valve angle  2950lbs
* Big block with any head 3100lbs
* Big block with 2 carbs add 100lbs
* No 5" or larger bore space blocks
* BBC limited to 10.2 deck height
* Big blocks limited to 640ci.
* Conventional big blocks smaller than 500ci may deduct 100lbs
 

PROCEDURE
* Once a racer takes the tree in qualifying they are counted in the ladder, will receive participation points and may not get an entree refund.
* All cars must be driven from the pit area to the starting line but may be towed back after a pass.
* Rules are subject to change and any combination that shows to have an definite advantage can be penalized to equalize the competition.
* Weather and time permitting, there will be 2 qualifying sessions. The quickest time will be the official qualifying time. Racers will be paired according to a pro-ladder. Driver with the quicker E.T. in the previous round during eliminations will have lane choice.
* Each car may only have 3 crew members in the staging area.
* Deep staging allowed at drivers own risk, no provisions made to hold the tree for the driver.
* If a race ends for any reason during a round of competition no points will be given for that unfinished round.
* Any minor intentional or unintentional rule infraction that does not cause a definite advantage will result in loss of any points and winnings achieved while in violation.
* Any intentional rule infraction done to gain advantage over the competition will result in disqualification a $3000 fine and suspension from all KOTS races until the fine is paid in full.
* A round does not begin until a KOTS official working the lanes says so.
* A driver does not start his burn out until an official says so.
* If a driver refuses to stage or is unable to stage or proceed to burnout after an KOTS official has told them to, the drivers will be disqualified during eliminations or loose their qualifying attempt for that round during qualifying.
* All drivers must be ready when called to the burnout box and must pull into his lane immediately when motioned up by an official or he will loose that round.
* If a driver double bulbs, the other driver does not have to pull up to the first beam.  He can make the other driver back out and pre-stage again.
* Treat the other driver the way you want to be treated.
* If you have a problem with another driver or team, take it up with an official (in an civil manner) not the other driver or team. If anyone starts an altercation with anyone else (right or wrong) they will be fined $500 and not be allowed in the competition area until the fine us paid (the instigator only not the entire team).

KOTS has the right to inspect vehicles and support vehicles at anytime for rule violations.  This includes tear downs and/or PNG engine measurements.  Refusal to allow an inspection or tear down will be considered the same as a performance rule violation and will require the same penalty.

PROTESTS
If a racer believes another competitor in the same class is in violation of a rule, he or she may protest that racer for further inspection. The protesting racer must have a tech card for the current race. The racer making the claim must specify the violation to be checked for and put up a $200 protest bond plus any additional costs. Additional costs include but are not limited to damaged parts, gaskets, and reassembly fees by a professional shop of the car owners choice. Maximum shop fees will be set at the time of protest to not be excessive for the work to be done at the judgment of the KOTS president. If the racer is found guilty of that rule violation, the claimant will get his protest money back.

RAIN OUTS
In the event of inclimate weather, the decision to call a race is the decision of the hosting track.