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Polaris RZR S


Product Review

Mid-Engine Sand Car Shootout

When the opportunity came up to check out three new mid-engine sand cars in the dunes at the same time, I jumped. As an owner of a mid-engine sand car, I can't say enough about how much I like the nimble feel that a mid-engine chassis provides. Many duners have enjoyed the slot car like capabilities for years. In the past, mid-engine sand cars have been light weight with 4 cylinder Subaru or VW engines. Over the last few years, a new breed of mid-engine cars has hit the dunes and revived the interest in mid-engine chassis. The three sand cars seen here from Mosebillt, Revenge Racing and Suspensions Unlimited are all new, ground up designs with sway bars, long trailing arms and many other engine options.  I was interested to see how these new cars performed.

Mosebillt
Universal MB2

Revenge Racing
Silencer

Suspensions Unlimited
Sand Pro 2

Mid-Engine Lineup: Revenge Racing, Mosebillt, Suspensions Unlimited
The lineup: 
Revenge Racing, Mosebillt and Suspensions Unlimited

Mid-Engine Shootout
The mid-engine sand cars take to the dunes.

Mid-Engine Shootout

Able to handle V8 engines

These chassis’ are all setup to handle today’s heavier and more popular V8 engines. Compared to the lighter mid-engine from a few years back, you will notice more tubing and heavier wall thickness to help compensate for stress cause by the added weight.

Classic Mid-Engine Handling

     
Click image to enlarge

Typical mid-engine sand cars are known for their nimble "slot car" handling characteristics, and these three did not disappoint. They all cornered very well and handled side-hills like a billy goat.

Longer trailing arms, pivot location and anti-sway bars

     
Click image to enlarge

Mosebillt and SU are running 35.5" STUs and Revenge is running 33".

These sand cars have longer trailing arms (33" - 46") to help address some of the typical mid-engine weak points - running through whoops and jumping.

You will also notice that they all are equipped with anti-sway bars to help minimize body roll. Anti-sway bars are standard equipment on all of these cars, and really help when the engine choice is a heavy V8. Revenge Racing also has an optional front anti-sway bar.

Action Shots

Suspensions Unlimited

   Suspensions Unlimited - SP2 Mid-Engine   Suspensions Unlimited - SP2 Mid-Engine   Suspensions Unlimited - SP2 Mid-Engine   Mid-Engine-Shootout-73.jpg (130205 bytes)

The Suspensions Unlimited sand car came equipped with a 600HP 6.0L LS2 and a Mendeola S4 Sequential transaxle.

Mosebillt

   Mosebillt - Mid-Engine   Mosebillt - Mid-Engine   Mosebillt - Mid-Engine   Mid-Engine-Shootout-72.jpg (109405 bytes)

The Mosebillt sand car came equipped with a 550HP 6.0L LS2 and a Mendeola 2D transaxle.

Revenge Racing

   Revenge Racing - Silencer Mid-Engine   Revenge Racing - Silencer Mid-Engine   Revenge Racing - Silencer Mid-Engine
Mid-Engine-Shootout-71.jpg (111109 bytes)   Mid-Engine-Shootout-74.jpg (113110 bytes)

The Revenge Racing sand car came equipped with a 550HP Turbo 3.0L Subaru and a Mendeola 2D transaxle.

Specification Comparison

 

Mosebillt

Revenge

Suspensions
Unlimited

Overall Length 13' - 14' 14' 2" 13' 5"
Wheelbase 124" 122" 123"
Front Width 85" 80" 80"
Rear Width 92" 94" 93"
Dry Weight (LSx) 2,100+ lbs. 2,000+ lbs. 1,995 lbs.
Engine Options LSx LSx, Subaru LSx
Front Travel 26" 20" 20"
Rear Travel 26" 20" 22"
Shocks Internal bypass front
Bypass rear
Bypass front/rear
optional
Bypass front/rear
Trailing Arm Length 46" 40" 33"
Power Steering 2.5" Rack Char-Lynn std.
2.5" Rack opt.
Char-Lynn std.
2.5" Rack opt.
Brakes Front - 4 piston
Rear - 6 piston
Front- 2 piston
Rear- 4 piston
Front- 2 piston
Rear- 4 piston
Rear Hubs Micro-stub std.
Mid-board opt.
Mid-board Micro-stub std.
Mid-board opt.
Front Spindle

2" Hollow

Combo std.
2" Hollow opt.
Combo
Anti-Sway Bar Rear std. Rear std. 
Front opt.
Rear std.
Frame

1.75" .083 - 4130

1.5" .095" - 4130

1.5" .095" - 4130

Additional Photos:

Mosebillt

Mosebillt - Mid-Engine   Mosebillt - Mid-Engine   Mosebillt - Mid-Engine   Mid-Engine-Shootout-49.jpg (66703 bytes)

Mosebillt - Front Arms with Fox Internal Bypass Shock   Mosebillt - Rear Anti-Sway Bar   Mosebillt - Rear Trailing Arms   Mosebillt - Rear Shock Mounts   Mosebillt - Mendeola 2D and LS2

Revenge Racing

Revenge Racing - Silencer   Revenge Racing - Silencer   Revenge Racing - Silencer

Revenge Racing Silencer - Front Arms   Revenge Racing Silencer - Rear Anti-Sway Bar is Standard.   Revenge Racing Silencer - Standard shock mount, just add bypass.   Revenge Racing Silencer - Hanging pedals.   Revenge Racing Silencer - 2.5" Rack and Front Anti-Sway Bar.

Suspensions Unlimited

Suspensions Unlimited - SP2 Mid-Engine   Mid-Engine-Shootout-57.jpg (65284 bytes)   Mid-Engine-Shootout-58.jpg (76432 bytes)

SU - Mendeola S4 and 934 CVs   SU - Rear Anti-Sway Bar   SU SP2 Mid-Engine - Char-Lynn Steering is Standard, 2.5" Rack is Optional.   SU Pro 2 - Mid-Engine Sand Car

SU Pro 2 Mid-Engine, Front A-Arms with Bypass Shocks

Suspensions Unlimited - Sand Pro 2 Mid-Engine    Suspensions Unlimited - Sand Pro 2 Mid-Engine   Suspensions Unlimited - Sand Pro 2 Mid-Engine   Suspensions Unlimited - Sand Pro 2 Mid-Engine

Conclusions:

I had a great time checking out these cars at Glamis, and would encourage anyone that has interest in a new two seat sand car to check them out.

Although I was not shopping for a new sand car when I did the photo shoot, one thing led to another and I now have a new car on order.  Justin at Revenge Racing will be building a Silencer for me with a Mendeola S4 and a DanZio built 600HP LS2.

Contact Info:

This review was printed in the May/June 2007 issue of Sand Sports Magazine

Some of the photos on this page were provided with permission from Mike Lyon at SandBros.com.


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