Calling Pro truck. Class 8. 7200. 1450. 4400.and more

[jeepspeedcom]

Jeepspeed has been getting a lot of interest and enquiries about expanded to Jeepspeed Unlimited Class 4700 going forward in 2020 . 4700 will be identical to Jeepspeed Outlaws Modified Class 3700 but with following exceptions. The class can attract many different vehicles that are currently parked. Please read 3700 rules thoroughly. www.jeepspeed.com

We have 4 entries at Laughlin next weekend. Three Pro Trucks and one 7200 and we have issued several new race numbers for next season.

4.1.1. Body. Must use Jeep or Dodge radiator grill , Dodge/Jeep-style headlamp or headlamp decals and Jeepspeed supplied body side Dodge/Jeep logos.
4.2.1. Wheel base restricted to 123" on custom chassis vehicles, any Jeep or Dodge bodied vehicle constructed or raced prior to publication of these rules may apply for a variance at the discretion of Jeepspeed.
4.2.2.1. Front wheel travel 18" max. Rear wheel travel open.
4.8.1. Chassis is open. open production class and all components will be considered open unless restricted herein.
4.2.1 Maximum overall track width 96" measured at the widest point of each tire
4.8.1.1. Tube chassis Wheelbase must not exceed 123" . If vehicle uses complete length production factory chassis you may apply for wheelbase variance.
4.5.1. Engine block may be any make 4/6/8 cylinder but must be a production block or available in crate or component form to the general public in the USA. Engine block may be modified but must maintain the same number of cylinders as originally equipped. Heads must be available to the general public in the USA. Must maintain same number of valves as engine was originally equipped. 4 or 6 cylinder engines may be turbo or supercharged. No underdrive or overdrive systems.
4.8.1.4. Engine and transmission location. Must be ahead of rear axle assembly.

All vehicles must use General Tires Max Dia. 37"
All vehicles must use KMC Wheels, or a wheel brand of the 8 Wheel Pros Inc makes. ( American Racing, ATX, etc.)
Entry fees will be subsidized by Jeepspeed who will pay all prize money, event bonuses, and year end awards.
2020 is Jeepspeed,s 20th season and once again we will continue to run the BITD 6 race series.

www.jeepspeed.com. For more details.
Jeepspeed retains the right to change or modify the rules at any time. Jeepspeed will do its best to give competitors fair notice of any rules changes.

 

[desertspeed]

2019 4700 Rules:

4.5.1. Engine block may be any make 4/6/8 cylinder but must be a production block or available in crate or component form to the general public in the USA. Engine block may be modified but must maintain the same number of cylinders as originally equipped. Heads must be available to the general public in the USA. Must maintain same number of valves as engine was originally equipped. 4 or 6 cylinder engines may be turbo or supercharged.

2020 4700 Rules, from Above:

4.5.1. Engine block may be any make 4/6/8 cylinder but must be a production block or available in crate or component form to the general public in the USA. Engine block may be modified but must maintain the same number of cylinders as originally equipped. Heads must be available to the general public in the USA. Must maintain same number of valves as engine was originally equipped. 4 or 6 cylinder engines may be turbo or supercharged. No underdrive or overdrive systems.

Why the change to not allowing underdrives?

 

[jeepspeedcom]

Good catch Desertspeed. As we get different style trucks join the series we may need the occasional rule tweak to contain costs and attempt to keep close racing. The overdrive / underdrive was not thought about until BITD just recently changed 6100 rules. 37" tires don't need it. Now 6100 orphans could shorten rear arms 2" and get new rear drive shaft, strap front travel to max 18" and fit in 4700. Pro trucks need no mods.

 

[desertspeed]

Thanks for the response , and I understand the desire to capture some 6100 racers for the class. Unfortunately that means possibly losing some 7200 trucks with underdrives that may have wanted to race. We were/are in the process of making some modifications to our truck so we fit in 4700 but now may have to rethink things.

I would think that by keeping the tire size limited to 37s you are already accomplishing what the class is intended to be (competitive, keep costs down, etc.). Honest question, and I don't know the answer- does adding an underdrive to a truck that is limited to 37s create much of an advantage? I know the rear end gearing costs would be lower over time, but would that be enough to cause anyone to add an underdrive?

I know that we would not add a $10k plus part if we didn't have to, and I honestly don't believe having the underdrive makes the truck any faster, but if the consensus from the class is that it creates too much of an advantage and would cause everyone to have to go out and upgrade, I totally understand the rule.

 

[jeepspeedcom]

We are listening and learning. Maybe underdrives and forced induction permitted on 4 and 6 cylinder engine trucks to balance up with the big V8s in the class. Stop by our contingency booth at Laughlin and educate us some more. As we are attracting such a varied amount of vehicles we need to learn more about each class. Keep moving on your 4700 build. We must finalize our rules by Dec 1st. Transmissions are another subject. We are considering no sequential gear boxes