Simply grinding out the ports to a predetermined size without considering the rpm range, and portflow characteristics will produce a lazy, and slow responding motor that makes good horsepower only above 4000 rpm. As any top tier rotary engine builder will be able to tell you, the quality of parts will have a direct relation to the reliability and durability of the engine. We are committed to building street performance rx8 and rx7s. As well, we take the time to check tolerances carefully for components that do get re-used and during the build process. Stage 1 Stock Rebuilds are an economical choice for engine replacement without sacrificing reliability. However, a rebuild due to catastrophic failure usually requires new core components. We address the weaknesses found on stock engines and remanufactured engines.
The silver is still available, if you wish to have this instead. Atkins Rotary Oil Filter 25. I will reuse the original rotating assembly counterweight, rotors, e-shaft, and flywheel from the early engine, unless the customer wishes to step up to the later, lighter rotating assemblies from the 86-88 nonturbo, or 89-91 nonturbo at an extra cost. Rotor Clearancing For high rpm operation increased clearance between the rotors and the housing is necessary to prevent contact due to heat induced expansion and rotational forces. Often, our specifications are greater than those specfied as acceptable by Mazda. And over time, the stock mounts become weaker until one eventually breaks. The information on this site also contains , rx7 turbo, and rx8 renesis pdf files.
Please contact us at for information regarding other rebuild upgrades not mentioned. Oil Metering Pump O-Ring 27. Oil Pan Pickup Gasket 12. Chips Motorsports is your go-to Midwest rotary shop. Engine Features All RotorSports Racing engines include new internal seals, bearings, gaskets and lapped or new side housings. Your 20B Turbo will be completely rebuilt to perform as new. Two Piece Eccentric Shaft Another option to rotor clearancing is using the lighter two piece eccentric shaft by Guru Motorsports in Australia.
Theres a long list of stuff so i wont go into detail. Turn around time for engine rebuilds and services vary depending on work load and part availability. Though I have the ability to rebuild early 13b and 12a engines, I rarely do so. Additional core charge if no core provided. I'm sure i'd have seen it about. Air Control Valve Gasket 17. All other minor hardware and major core components are also reused in the build unless worn or damaged.
Our proven porting is designed for each engine type to flow more air by maintaining high velocity through the port. Stock Mazda Inner Water Jacket Seal 22. We provide serivce worldwide, cars can be shipped from any location to us for servicing! Axel stands or lift Engine hoist Engine stand An understanding mate willing to lend a hand preferable one that doesn't mind you cursing alot at inanimate objects An understanding mate with a big shed or a big shed of your own A big heater for the big shed I was freezing my nuts off the last time Well fitting gloves makes a huge difference Again feel free to add You must not be in your rex johno do ya? Parts used for our engine builds are mostly factory Mazda parts except for the parts most commonly recommended to upgrade from O. Removal and installation is an additional charge, which varies depending on year and model. There is approximately a 2-5 week wait between the time I receive your initial deposit and the time I ship the engine back out. Not recommended for street driven cars due to low rpm driving, and thus lower oil pressures experienced in stop and go conditions. Waterpump Housing to Block Gasket 10.
The most expensive engine rebuilds are the ones you have to rebuild twice! Also not all parts you need are in the kit. The Build: All of my engines are built on a per-order basis, meaning that I do not have any stock on the shelf. Rather than rebuild an engine with questionable housings, I prefer not to rebuild them at all unless new or like new housings can be used. Engine assembly includes installation of front cover and sealing the oilpan, additional accessories can be installed as well at customers request. All components are then thoroughly inspected to insure that ever part is within tolerance and meets rebuild specifications. Consider installing the 20B, a 3-Rotor engine.
We rebuild your supplied core engine. There are more new parts installed in the engine as the level increases. Consider RotorSports Racing's with your engine rebuild. We also carry Mazda Competition parts and modify stock parts for customers who wish to assemble their own engines. This improves torque and peak power without sacrificing throttle response or smooth idling. Rotary Engine Rebuild Services Banzai Racing rebuilds all rotary engines to higher than Mazda specifications. Seen a black rx in the multi story car park in arthurs quay just around christmas time, might have been you? Let RotorSports Racing do it right for you the first time.
Most of our cars are 13-15 yrs old after all. Click the images to view the specials. Main and rotor bearings are also reused whenever possible, because it is my opinion that a moderately worn original bearing is still superior to a new bearing in this application. Sonic Cleaning Sonic cleaning services are available for just about anything that needs to be thoroughly cleaned. You also have the option of dropping off your car for a swap, but again, to setup an appointment.
. Rear Stationary Gear O-Ring 7. Porting is a common upgrade when rebuilding a motor. Front Cover Teflon O-Ring 11. Engine idle, low rpm power, and throttle response are compromised for maximum power. We offer the 20B conversion kit that needs no chassis modifications. Porting can only be performed on excellent condition used or new housings and may require additional component replacement.