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JP-Racing-Case.gif (7185 bytes) Crankcase

Not all crankcases on .21 racing engines are created equal these days. Actually, what is required of the case and what features would make one better than the next? For one casting accuracy ensures that specifically designed features are as intended and parts like bearings, sleeve, transfer ports etc.fit properly in relation to each other.

Nova-Rossi-Case-S21

 For this purpose the injection molded crankcases like the Nova Rossi, OS Engine and GRP Engines are the standard and are beutifully executed in every detail as well as fit and placement of all the components that make up a high performance engine.

Nova-Rossi-Max-Case

Time has shown that injection molded crankcases have less mechanical strength than cases produced by more conventional casting methods. This type of engine case will only perform to its potential when properly mounted and flexing of the mounts and mounting area is kept to an absolute minimum. Serpent, manufacturer of onroad car kits, tried to incorporate this type of  engine block as a load carrying part in their original V-Tec and subsequently had to deal with many case failures and performance problems due to the deforming cases.

CMB-Case Other companies like CMB and Picco still use the "lost wax" and similar non injection mold production methods for their engines. These type of cases are mechanically much stronger, however they are not quite as accurate and/or "pretty" but nearly indestructable. The absolute top crankcase would have to be the billet cnc machined master piece from BP Racing if you don't mind the extra cost.

BP-Racing-Case

  As a rule of thumb, if you mount your engine in the car or truck. Make sure the mount is absolutely flat and use a one pice design if at all possible and your engine will perform at its best. Also always use high quality hardware and keep the screws tight.(Hi Matt :-))

BOSS-crankcase

JP-Racing-Case by Nova Rossi

RB-Crankcase S7 Series

The latest designs of the injection molded variety by GRP and RB show the latest effort to increase strength by design while retaining the other desireable properties of accurately injection molded cases.Top current engine cases for combined strength, accuracy and component placement are GRP Engines, RB WS7 Series, BP Racing Engines in no particular order. (my opinion, but hey- its my web site)

Exhaust-Detail

During the process of preparing our engines we look for close tolerance of the sleeve to crankcase fit, proper bearing alignment and installation. Rework the exhaust portion of the case if necessary as well as other alterations within the case as needed depending on type, make, model of the engine.

Good Racing,

Rich Reid

For questions or comments please e- mail me at rich@reidrc.com