Mazda RX 7 Rotary Engine – The Legend – Boost And Camber

  • Facebook
  • Twitter
  • Copy Link
  • Email
  • More

Some of the top JDM cars have some crazy power, with amazing tuning potential. The ones we hear of the most are the Nissan GTR, Toyota Supra, Honda NSX. But we forget about the Mazda RX 7 with the Rotary Engine.

This engine is itself a legend in the automotive world, it’s got a lot of bad press but then again, it gets a lot of praise at the same time. It’s a bit like marmite.

But if you own or are looking to own an RX 7 you might be looking into increased power, better stance and styling. Or you might be wanting to know common problems. So I will try to address all of this in this post.

Disclosure: Posts on BoostAndCamber include ads and affiliate links where if a sale is concluded through the links, BoostAndCamber receive a small commission at no cost to yourself to help with the running of the site.

What Is A Rotary Engine

If you’re not quite sure what a Rotary Engine is, it’s an Engine with a rotating cyclinder, simply put. A normal engine would have cylinders and pistons that go in a linear motion. But the rotary is powered by the radial motion created by pushing the cylinder around the housing.

The reason the engine worked so well and is such a stroke of genius is that the crankshaft rotates 3 times to 1 rotation of the triangle cylinder. Meaning the power output is 3:1, so a smaller engine can pump out more power.

The way it works is as it turns, it has 3 chambers, with one chamber where the fuel, air mixture goes and creates an explosion and another chamber for exhaust waste. Thus, everything is done in one motion.

This engine wasn’t used for long in Mazdas RX range and was short-lived between 1963 and 2012 and was eventually dropped down to poor fuel efficiency. Although the legend of the Wankel still live on.

The Power Of Rotary

What Mazda had created was a fantastic power to weight engine. They could get a lot of power out of a smaller engine. But what made it better was 2 turbo chargers!!

So the RX 7 was displacing 2 rotary chambers, each having 654cc of displacement. Coupling this with the sequential twin turbo, they deemed this to have the engine size of a 2.6.

Pumping out 237bhp from a 1300kg car, gave this a fantastic edge against its rivals who had more weight to accompany them. Not only that but it’s 50 / 50 weight ratio meant with its combined low Center of gravity it could also handle the corners.

The sequential turbos really were brilliant too. The idea is to cut out turbo lag, a problem found in most turbo cars. To save the lag, they have a turbo kick in at lower revs then the second one hits around 4K RPM. Giving it more boost.

The only downside was it’s lack of torque, but it made up for that with its magical mechanics.

Improving Power / Stance

The Wankel engine is already a punchy number and has fantastic suspension and weight ratios. But that doesn’t mean they can’t be improved. Improving power output on most turbo cars is a lot more simple than na. A quick remap will give you some effective gains.

But if you’re after some big gains, you’re running the route of the daring. You could start by upgrading turbos and increasing the air flow. There are fuel pump upgrades. In fact, here are some pretty well-known quick fixes.

  • Air intake
  • Fuel pump
  • Turbo upgrades
  • Intercooler
  • Remap
  • Ecu
  • Fuel lines

These are just the start, if you want to go a bit deeper, try looking into porting, specifically bridge porting and street porting. Porting is something you can do if your really into the engine upgrade process. Check out what a rotary sounds like after a bridge port. They sound incredible.

As for stance and style, literally anything can enhance these, they are just photogenic. From front splitters to big wings. Here is a simple list of some things to consider.

  • Coilovers
  • Big offset wheels
  • Rocket bunny kits
  • Big rear wing
  • Body wrap

Just about most things will make an RX 7 look that little bit cooler.

RX 7 Has The Cool Factor

Talking of cool, the RX 7 just has it, the looks, the engine, the exhaust note, even the cult following. If you’ve never heard of an RX 7 and you’re into cars, I’d be highly surprised.

With the cult following, there are some fantastic hoodies and T-shirts rocking on Amazon if you are a big car guy and want to show off and let the world know. If you support one of these, you’ll make friends pretty quick.

Click these links below to buy yours!

But it’s not all merch though, they are all over Instagram, movies, car meets. The RX 7 just stands out wherever it goes. If you ask me, it was the coolest Mazda ever built, sorry miata, not sorry.

But seriously, you just know an RX 7 usually before you see it, when you do it brings back memories of need for speed underground.

Buying An RX 7

If you’re after an RX 7 in the UK, the pickings are rather slim, there aren’t that many. The people that own them have cared for them like their babies, servicing them regular and spending thousands keeping them in great Knick. If you want one, expect to pay in the region of £20k for a good condition.

If you do buy one, we recommend taking it to a specialist to see what kind of engine damage it may or may not have as these Wankel engines need to be serviced every 6000 miles or so. They really are needy.

One common problem to look out for is worn apex seals. Make sure to get these checked out, because they can lead to other very pricey repairs.

Other than that, the RX series of cars were some underrated beasts in the performance game and never got the credit they deserve, so if you want to join the RX 7 crews and be a true petrol head, go for it.

If you like our posts please comment below on anything you want to input or if you have any questions. We love hearing from you guys.

Or if you fancy checking us out we are on Facebook, Instagram, Twitter and Pinterest!

Happy rotarying

Kevin

Kevin@boostandcamber.com

  • Facebook
  • Twitter
  • Copy Link
  • Email
  • More
Recent Posts

Is BOTB A Scam – The Horrible Truth

BOTB or Best Of The Best has been around since 1999 and was established by Managing Director and CEO, William Hindmarch. Since it’s beginnings BOTB has given away over 500 [...]
Read more
Can synthetic fuel save petrol and diesel cars from extinction

Can synthetic fuel save petrol and diesel cars from extinction?

The internal combustion engine has been the dominant force in automotive propulsion for over a century now. But with the rise of electric vehicles, many are wondering if the days [...]
Read more

How Fast is a Hellcat? Speedy OR Not?

How fast is a hellcat? That’s a question that has been on the minds of many drivers, car enthusiasts, and just about everyone who has ever seen or heard of [...]
Read more
blue car with white snow on top

How Your Car Mods Can Affect Your Insurance Rates

If you’re considering modifying your car, you should be aware of how those modifications can affect your insurance rates. Many people make the mistake of thinking that all modifications are [...]
Read more

How Much Does an Oil Change for a Lamborghini Cost?

If you own a Lamborghini, then you know that it’s a car that requires special care. Not just any regular oil change will do – you need to take your [...]
Read more

What Is Caster And Camber?

Learn The Basics About Caster And Camber, And Get Your Car Back On The Road With A Caster And Camber Adjustment. As you may know, caster and camber are two [...]
Read more

Custom Little Tikes Car – Teaching Stance Young

Growing up sucks. You wake up and you ache a little more each day and you have your passions, which is great, but it’s just not the same as when [...]
Read more

Boost And Camber – Home Of Stanced Cars

Your car is never going to look how it did when it left the showroom but detailing on a regular basis will help keep your car looking at its very [...]
Read more