Bench Racing: 5.50 BBF needed for 3200# chassis

Need some bench racing advice. In Tennessee there is a semi heads up class gaining popularity called "Cheap Street" at the 1/8 mile tracks. The dominant combo is small blocks with fogger systems at 3100 lbs. Nitrous systems are limited by a -4 line size restriction. However, big blocks can run at 3200 N/A and 3400 lbs power adder. Note they say that big blocks have to be "conventional heads". The main premise of the class is that if you run faster than 5.50, then they add 100# for every tenth at your next pass.

So here is my question to bench race; could one build a N/A BBF that could run 5.50's with a conventional head? Could P51's make the number without a massive cam? I'm guessing that the minimum flywheel hp is somewhere north of 925 - 950 hp at 3200 lbs with a Powerglide. What is the thinking on conventional heads, as this combination would be easily attained with A460's or even C460's.

Just researching for a build in the next year or two; thanks in advance.

damn I wish they had that class here.............

is weight the biggest restriction in the class ?? i believe a p-51 deal could do it ..is there a displace rest. ?? what are all the rules of the class

I would think that would be easy NA with a bbf. What I don't understand is why a sb needs a fogger to run a 50 at 3100lbs.

850 hp and a well sorted chassis/converter/gearing would be easy with a n/a BB. Pretty much anything 550 or so inches, race compression and cam.....pick a conventional aluminum head of choice and work it good.

These are the rules copied directly from bountyrace.com website for Crossville I40 dragway.

Cheap street is an intro class into heads up street racing, the rules should allow the average racer to compete without huge $$$ in drivetrain and exotic combo's.

All steel body (hood deck lid bumpers can be glass)
Stock appearing
Factory frame front to back, frame notch is ok, mini tub only
Must have carpet and front seats
28x10.5 slick or equiv size DOT tire max...(radial, et street etc)
NO FORWARD FACING SCOOPS unless factory equip.
10' wide rear wheel MAX...
ALL LIGHTS MUST WORK, TURN SIGNALS, THE WORKS..
NO COLLECTOR MUFFLERS,
Must have minimal amount of pipe from header to muffler.
No wheelie bars
All cars must run cast intake or OEM composite




Small Block....Power adder 3100 lbs base
ANY PRODUCTION based cylinder head allowed.STOCK VALVE ANGLE ONLY angle mill allowed max -2* INLINE VALVE ONLY unless factory equip otherwise
TFS TW and R series allowed add 100 lbs
LS Style SBC head will add 200lbs
OEM CLEVELAND HEAD ONLY @ SMALL BLOCK #
AFTERMARKET CLEVELAND @ BIG BLOCK #
No exotic non conventional heads
-4 Nos Line Tank to solinoid. 1 stage only.. 2nd system needs to be off car, or solinoids removed. 1 bottle, 1 line.
Small block FOGGER ad 75lbs
Add 50lbs for coil over or ladder bar.


Small Block N/A
Any inline valve head with cast intake 2800 lb min
Big Block
N/A conventional head @3200
BB NOS PLATE ONLY 3400 min
Must run commercially available plate only 1 fuel and 1 nos soliniod MAX ON ANY BB COMBO
Any production based head allowed, NO BIG CHIEF, OR EQUIV...

BOP combos will run at small block wieght.

NO METHANOL ON ANY COMBO!

NEW RULES FOR BOOSTED ENTRIES THIS IS A TRIAL BASE ONLY. SUBJECT TO REVISIONS.
Superchargers. Limited to a RIB style belt, NO COG belts, NO AIR TO WATER unless factory equipped and still OEM. (AIR TO AIR) OK,,,

Turbo limited to 76mm, no air to water, no methanol injection, must run commercially available air cleaner. No Twin turbos or superchargers, no dual power adder of any kind

Turbo and supercharged cars will run @ 3300 lbs
Small Block ONLY.

V6 cars will run @ 3200 and be allowed air to water.

ANY CAR That exceeds. 5.50 will be given the gift of lead at the next race based on ET achieved.

PROTEST..
$100.00 Protest fee

Any racer entered on race day may formally protest any other racer on day of the race by putting up $100.00 If racer in question is found to be in VIOLATION of rules, that racer is eliminated for the night and forefits any and all prize money. And protest fee is returned to Protester... If found LEGAL protester forefits his or her $100.00 and racer in question kee

bruno wrote:is weight the biggest restriction in the class ?? i believe a p-51 deal could do it ..is there a displace rest. ?? what are all the rules of the class

I agree...P-51s should get you there.

x3 and if you build it right they should give you some margin to run under.