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Engine Porting describes modifications to the intake ports on a rotary engine. There are a number of different porting options ranging from the mild to extremely wild or somewhere inbetween.

Depending on the usage, performance requirement and/or budget any one of these options may be suitable and neither one is necessarily ‘better’ than another. A rotary engines performance is an accumulation of parts and elements, porting represents only one of the those elements.

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Engine Porting

Street Porting

The most common form of intake port modification for a rotary engine and normally undertaken during one of our rebuild or re-manufacturing packages.

Street Porting
Mazda RX-8 Widebody in Orange
Mazda RX-7 FD Modified in Yellow with Carbon Fibre

Engine Porting

Bridge Porting

The corner seal track limits how far we can go with a standard Street Port otherwise the rotor's Corner Seals can fall out of the rotor and become lodged in the port itself. A Bridge Port can circumvent this...

Bridge Porting
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No Hidden Extra Guarantee

Our NO HIDDEN EXTRA GUARANTEE ensures you only pay for your chosen package. If, once your engine is stripped we find you need internal parts including Rotors, Rotor Housings, Engine Plates or the e-Shaft, we will replace these at no extra cost!

**FREE Recovery

At RotaryMotion, we offer a FREE vehicle collection/recovery service within a 100 mile radius when booking your vehicle in for an engine rebuild.

Please note: We cannot be held liable or responsible for your vehicle prior to collection. This includes vehicle taxation, parking charges and/or subsequent fines.

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About us

Customer Reviews

So glad I decided to bring my RX7 fd3s to Rotary Motion!! Quick rebuild turn around with constant updates on progress, professional job done and a really nice genuine bunch of guys. Would recommend them to anyone and couldn’t have asked for a better service. Thanks again for all the hard work the guys put in and looking forward to coming down again for more work!

Tom B.

Having chose RotaryMotion for the development of my RX8 NA race engines I’ve been astounded by the support, technical knowledge and abilities of the team. Having used lots of engine ‘builders’ in the past I wouldn’t trust my rotary with anyone else!

Antony W.

Very nice people to deal with, quick turn around, expert advice, excellent prices, my RX8 is running 100% better than before! I had the silver package engine rebuild with a new clutch. I’m really pleased with the work from Rotary Motion and will deffo use again and recommend to anybody who owns an RX! Thanks for everything!

Jack M.

Since getting into Rotary Chris has always been my go to guy. When I had the RX8 he was who made sure I knew how to look after the car, now on my second rotary an FC convertible. Correctly diagnosed a fault with the car that another garage had missed. Chris is a amazingly knowledgeable guy who works magic at what he does.

Aaron J

Google 5-Star Reviews
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