IR Performance EFR Turbo Kits
 

I've been hinting at making a full EFR kit for some time, and finally got around to it. We finished final mockup of our kit last week. When designing this kit, my goal was to achieve response similar to the stock twins, but with far more power potential, reliability, and ease of vehicle maintenance.

Just like our traditional turbo kits, our EFR kits will feature a properly designed manifold. Or manifold is constructed of T304 stainless-steel, equal length. Runner length, diameter, and turbo placement have been calculated from years of testing and experience. Our manifolds are tuned to the exhaust pulses of the 2 rotor engine. We have found that a 1.8″ inside runner diameter is most ideal for 99% of rotary applications offering the best balance of spool and power potential. This is not attainable with schedule piping, which is why we do not use it. Schedule piping is also significantly heavier.

A note about cast manifolds. Some manufacturers make claims that their cast manifolds are superior to a tubular manifold. While a cast manifold can be somewhat more resistant to cracking, a properly constructed tubular manifold will not crack either. In fact, we offer a life time warranty on our manifolds to the original purchaser. The biggest downside of a cast manifold is the heat it retains. This heat radiates and heat soaks everything its path including the turbo, intake manifold, and any hoses or wires. This causes these components to fail much quicker, similar to the heat issues the stock turbo system on these cars cause. A second downside is difficulty in casting long, equal-length runners. This is why all the cast manifolds on the market are the short runner design. Third, a cast manifold will be significantly heavier than a tubular manifold. Manufacturers push these manifolds because they are relatively inexpensive to manufacture and easy to replicate. We have yet to see a cast manifold outperform a properly designed tubular manifold. All other factors remaining constant, a properly designed tubular manifold will make more power and spool a turbo faster than a cast manifold.

This will be a complete bolt on kit with turbo, manifold, downpipe, oil and coolant lines, hardware, gaskets, heat sleaving, etc.

Dual O2 bung option.

Dual EGT sensor option.

It will be significantly easier to install with plenty of clearance from the frame rail.

It will fit with most front mount, stock mount, and v mount intercoolers.

There will be sufficient room for an idler pulley and air filter.

Air conditioning and power steering can easily be retained.

It will be priced below the competition/offer more value for your dollar.

Hand built in the USA by rotary enthusiasts for rotary enthusiasts, not oursourced overseas.

Final version will be completed in a couple weeks. I guarantee this will meet and exceed all expectations. Here are some teaser pics. Please note the bracing on the manifold is for mockup purposes only and will be eliminated in the production version.

This is great stuff. Looking forward to more info and pics.

Thanks. After installing and tuning the other kits on the market I wasn't happy with them, so I made my own. This will have nothing but the best components.

Will it work with the FFE idler? Charge pipe to work with GReddy V-Mount? :D

I haven't tried with the FFE Idler. I do know that pulley is way bigger. It fits with both versions of the pineapple idler though. The car pictured has the greddy v mount. For a single turbo car you need to fabricate the hot side piping from the intercooler to the turbo, unless you have an actual greddy turbo kit.

Great to see the continued development and support for the platform. You have put out consistently good products for the FD and I'm sure this will be no different.

Rotaries have always been our main focus, even though we work on other cars and have started to get into the higher end market. We will keep trying to innovate new products for you guys. Thank you for the feedback.