Video

They just need owners who aren’t stupid and they’re perfectly fine.

prosportgauges.com

Drive train loss, as well as a no emissions equipment whatsover, no a/c, much less on the charging system to run (like electric powersteering) is my bet Edit: also a much more efficient exhaust system

More than 30HP extra.. This is RWHP. Rx8s have 238HP at the flywheel. This Reni has what I'd estimate is 300 FWHP - that's BP\PP territory and PROVES that Bridgeporting (well.. any porting for that matter) is a total waste of time on the Reni. I would however encourage some tighting up the exhaust ports though. Very impressive. I think Nate explains on it well in the description. Thanks for sharing Nate! Awesome!

@@RotormanMTB That’s not even close to correct. The renesis in the RX-8 does indeed have a 238HP rating for output at the crank, however, only 180-190whp actually makes it to the tires. This is because the average drivetrain loss for a production FR rotary car is roughly 20% (238 - 20% = 190). In a formula Mazda application like this the engine is rear mounted and bolted to a transaxle. The output from the motor to the tires is almost the same because there is very little drivetrain loss. How much exactly is unknown, but it is substantially lower than 20%. In this application with an output of 250-260whp the crank HP is likely somewhere around 260-270 HP.

@@NateRist indeed you are spot on.. I didn't consider the engine location.. my bad

@@NateRist mine made "196" but ya know, also like 600ft lbs. I wish we could've got that dyno more dialed in for rotaries but oh well lol

I’ll gladly give up 30whp for a quieter tone. Straight piped rotaries sound terrible and are awful to drive

@NateRist but your dynod it, so for that purpose etc.Put a varex on it, nice and nanna for the cruising.plenty of good performance mufflers out there pretty cheap ..know one dynos a car and doesn't want peak power come on buddy haha....sound terrible? I dunno, my 3 rotor pp rx3 sounds pretty good without a muffler haha

I’ll stick with racing beat. Whatever power it makes with it is what I will be happy with.

They’re just speedhut gauges. Not sure what you mean by FB

@@NateRist The SH=speed hut I know that. And rx7 fb?sa? Same difference I'll just rephrase it: the speed hut gauges look sick on the rx7👍

I sold them a long time ago

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I have never had an issue relating to apex seals at all

@@NateRist Wait really ? Honestly cool tbh. Ive love to build a 12a rotary some day. Cool channel.

Measure the front cover oring recess, take the measurements to a machine shop and have them make you a metal insert (.001 smaller than total diameter and .001 thicker than depth, this will make it a crush washer. From there you can use an 04-08 RX-8 metal front cover gasket which also includes the water pump gasket

Why do people keep thinking this is my car or that I had anything to do with it's setup? This is a very custom and experimenal setup that still had bugs to work out at the time and the video is just showing the car working with something new to the market

They don't need to be closed dumb if youre going to Port it why You Will close the original one for that just don't Port it. If You Port it You don't close the original one. who told You that SO i never go there

No

definitely worth every penny (or maple leaf). I've used these every day since installing without a single issue and have only changed plugs every 7,000-9,000 miles whena small misfire happens (normal when premixing) and changed plug wires maybe twice only because I felt like it I have maybe 50,000+ miles with them on now

@@NateRist cool. Thanks for the info.. I've just noticed. They don't ship to Canada 😒😒😒.. I can't seem to find any that ship here..

@@NateRist I ended up pulling the trigger...I should be getting them next week... 😁

​@@tankconnors7323I'm from Québec and I want to buy these coils. What should I expect for shipping fees?

@@tuberculelapatate221 contact BHR

I’m not a fan of it either. The series 2 system was a great improvement, but still doesn’t do anything for the area between the intake ports and oil injectors.

@@NateRist for me the whole fuel/oil injection system on rotaries seems off. I've always wondered why not just inject the fuel directly after the intake is closed off by the rotor and have the oiling done in between intake and exhaust ports. Also always though the exhaust should have been handled by a port on the housing rather than the irons.

how is this going??!! wanting to do this exact setup but decided to port and rebuild a Dorito first, would love to hear art it

The number or letter codes stamped into the rotors on each side seal slot corrensponds with a precut side seal that's within a tolerance "range" that falls within spec, but is not guaranteed to be consistant or within your preferred tolerance. For first time builders that may not feel confident in cutting their own seals it is recomended to purchase precut side seals as the engine will run fine with them, but for builders like myself that wants the best outcome possible with consistent compression across all faces cutting seals down is the better route and worth doing if you're up to the task. If you'd like to know more about cutting RX-8 side seals check out my how to guide which can be found here czcams.com/video/5xkHL6g1Sic/video.html

Try using a pilot bearing install tool or a bolt or rod that’s just barely big enough to fit. You’re trying to trap the bread inside of the eshaft as much as possible so it can pop the bearing out

@@NateRist I'll try. I was using a wrench which was pretty tight. I'll see if I can find something that is more of a snug fit

It was detonation from faulty D585 coils from TREX. Not from carbon

It’s based on a 76-78 RX-5 Cosmo engine. The engine consists of RX-5 13B, RX-7 12A and Series 5 13B parts

1500 and 2000 or around there (whatever I have on hand, but typically those 2)

I had it made based on the irons from my RX-7's engine I got it with originally. The engine was built by Nick at Rotary Reliability & Racing sometime in the 80s and the only difference between those prots and these ones is these are a bit more cleaned up

watch the video