OUTLAW EAGLE MANUFACTURING

stevs · Joined: 30 Jul 2006 Posts: 3

I have a zz4 that has more then a couple of hours on it, and would like to refresh it. I was wanting to race in the upcoming worlds in 2007 in FX class and was wondering what can i do to the engine, if anything...
Example: different valves and pistons.

Question:
Can i bore it? if so how much?

MISSBHAVEN · Posted: Sun Jul 30, 2006 11:17 pm Post subject:

At present, it doesn't appear that there will be an SBFX class in the 2007 Worlds in Whitecourt. So, if you want to race your ZZ4, you'll have to race in the "B" class.

MISSBHAVEN · Posted: Mon Jul 31, 2006 11:18 am Post subject:

Please disregard my above posting. My info was incorrect. There will be an Fx class in the 2007 Worlds.

SouthIdahoGary · Joined: 15 Jun 2005 Posts: 295 Location: Wilder, ID, USA

Race organizing committee will need to decide and get it posted / published. As per the UIM ruleset section 900-1 subparts 2 & 4:

2. International racing is open to the classes mentioned in Rule
900.15. Titles shall be given to these classes only. Other local
classes can be invited by the National Authorities and or the
organizers of River Marathon Races, if so, the classes and the
capacity of the engines must be indicated in the Advance Program.

4. An Advance Programme must be sent by the organisers of an
international River Marathon Race to other National Authorities and
to the U.I.M. Office at least 90 days before the race.

This is the rule set we use in the AWJA US series. It might help. I have only included the spec sheet for the Chevy engine!!!

FX Limited Jet Class (FX 1-49 series numbers) Crate Motor Class
This class is intended to be an entry level boat with motors having the same horse power.
a. Hull: Any hull 14’ or longer, any shape and material. No glass windshields.
b. Propulsion: Any pressure style pump jet drive
c. Engine: Chevrolet ZZ4 355 HP crate engine or Ford GT 40 351, 360 HP engine or Dodge Magnum 380, 360 CID. A spec sheet must be filled out for any motor being run in this class. Spec sheets may have additional requirements. No alteration (port, polish, cutting, gasket matching, etc) to the as cast intake tract allowed. Chevrolet -Roller fulcrum / tip rocker arms are NOT allowed. Stamped steel rockers only. Only motors originally equipped by their original manufacturer with roller rockers will be allowed to run them.
d. Building a FX Class Motor: See spec. sheet for your manufacturer.
e. Using a marinized motor such as Redline, KEM, Marine power: see spec sheet for your manufacturer
f. Carburetor – any 750 cfm stock off the shelf carburetor.
g. Exhaust: any exhaust system allowed
h. Gasoline: Any gasoline allowed, no additives allowed
i. A solid front plate mount and cone mount to the pump is allowed if supplemented by two (2) safety cables attaching the motor to the hull. This system must be approved by the tech crew at the technical inspection.

FX CLASS CHEVY ENGINE SPECIFICATIONS
Name _______________________________ Boat # _______
Phone ______________________________
All parts to be used cannot exceed the specifications given for the baseline ZZ-4 355 HP crate engine.
If your engine to be used is a Chevrolet ZZ-4 355 HP crate engine, check space ____.
No further specifications are needed.
If any parts to be used are other than spec. parts listed below, complete attached parts list (Be specific – list brand & part number!)
Must be submitted 2 weeks prior to race!
Part Specification
Heads –
12556463 Any production vehicle cast iron or aluminum heads
No over the counter heads
No after-market – Dart, World Products, etc
NO PORT WORK OF ANY KIND ALLOWED
Valves Maximum Diameter Intake: 1.94"
Maximum Diameter Exhaust: 1.50"
Springs – 12551483 Valve springs not to exceed 325 open at max lift
Pistons – 10159436 Any flat top piston–valve reliefs OK-No domed pistons
NOTE: piston/head combo must not exceed 10.5:1
Block – 10105123 4blt Any 4.000 bore cast iron block
Maximum bore diameter 4.060
Crank – 12556307 Any crank with a stroke of 3.480
Rods – 10108688 Any rod with 5.700 cc length
Cam Drive – 14088783 Any single or double roller chain
No gear drives
No belt drives
Cam – 10185071 87 & later O.E. equipped hyd roller block-cam #10185071 only -86 & earlier, non-hyd. roller block not to exceed duration, lift or area under lobe. 112° lobe separation. Cam phasing is allowed
Rocker Arm – 10089648 Any 1.5 ratio stock type stamped steel rocker arms
Ignition Any Magneto/Electronic MSD etc.
Intake – 10185063 Any dual plane cast iron or aluminum
NO PORT or PLENUM MODIFICATIONS
No air gap style manifolds
Carb Spacers are allowed
Carburetor Any 750 CFM off the shelf –
No race type carbs. i.e. BG/Divinci, etc.
Exhaust Any header with approved silencer
Oil System Any wet sump style oil pan
No external pumps
No dry sump
Fly wheel Any flexplate/fly wheel
Harmonic Balancer Any
*************************************************************
FX Engine Spec Sheet

Owner’s Name __________________________________________ Boat # ______

Phone Number: ____________________

If you intend to run a factory marine engine such as Red Line, Marine Power or Kem, etc. you must supply a spec. sheet from the Manufacturer with HP ratings. No fuel injection of any kind allowed.

Heads
Brand
Part #
Description

Valves
Brand
Part #
Description

Springs
Brand
Part #
Description

Pistons
Brand
Part #
Description

Block
Brand
Part #
Description

Crank
Brand
Part #
Description

Rods
Brand
Part #
Description

Cam Drive
Brand
Part #
Description

Cam Shaft
Brand
Part #
Description

Rocker Arm
Brand
Part #
Description

Ignition
Brand
Part #
Description

Intake
Brand
Part #
Description

Carb
Brand
Part #
Description

Exhaust
Brand
Part #
Description

Oil System
Brand
Part #
Description

Fly Wheel
Brand
Part #
Description

Harmonic Balancer
Brand
Part #
Description

WILSON · Joined: 17 Jun 2005 Posts: 352 Location: Mexico City

Gary:

Is the DEMON "Speed Demon" carb. illegal for the FX class in the States?

As I understand the text, it is.

Just wondering.

stevs · Joined: 30 Jul 2006 Posts: 3

SouthIdahoGary · Joined: 15 Jun 2005 Posts: 295 Location: Wilder, ID, USA

Yellowhammer · Joined: 06 Jul 2005 Posts: 46

I would be interested in any information that pertains to the fxsb class for the 2007 worlds. At this point I am planning on coming up to Canada next year to race this class. I have heard that roller rockers are ok up there where they are illegal here in the states. Any other changes? Is this still a claimer class? Thanks......

Neutered · Joined: 15 Jun 2005 Posts: 122 Location: Peace River

Merv, I have officiated over a couple of our local races up here in Canada.
We have been enforcing the stamped rockers for our races and from the people I have talked to they will be enforcing the rules as written for next years worlds. As far as fx being a claimer class I could not answer that, but if everyone is running what they are supposed to run for a engine the cash claim should almost buy you a new fresh engine. Just my 2 cents Mike.