Your looking at the turbos up top. The Manifold is at the bottom

 

Oh ok, so there's an exhaust outlet that isn't shown in your photos. That makes a lot of sense now.

Pretty serious stuff! Incredibly complex. It's kinda funny. "Let's build an engine whose main characteristics are small size and simplicity, and add a heavy, large, elaborate turbocharging setup to it." Seems to work well anyhow, especially this BNR setup.

 

It's overly engineered along with twice as many solenoids, vacuum lines, etc.

 

I don't think the sequential setup adds particularly to the weight, but it certainly is complex. History has shown that pneumatic operation is not the right way to do this, but I'd be interested to see if it would work with direct actuation.

I suspect the long-term answer is going to be a motor/generator attached to the CHRA like they're doing in F1 right now (MGU-H). Use battery power to spin the turbo up, then take power off the turbine shaft to recharge the battery once it's making boost instead of using a wastegate.

--Ian

 

You suppose that will be implemented in the new RX-9 with there 400+hp goal?

 

Still need an intercooler, tune, and maybe a mid-pipe. I'm pumped with the numbers...

 

Why post a dyno video with no numbers?

 

Enter suspense:


311hp

no torque numbers. Dyno was held for a meet and didn't have the equipment for a rotary. I am going to upgrade the fuel pump to a Supra tt running constant 12v to it. Then get a medium stock location intercooler.

 

no torque numbers. dyno doesn't read that low of a tq figure



jk jk

311hp or whp? if whp that's a good number for that car for sure

 

Untitled by Gerald Mugar, on Flickr



graph sheet




I also won best Rx-7 for this weekends meet


The wooden award is 3rd place from Aprils Deals gap rotary rally


Untitled by Gerald Mugar, on Flickr

 

Mazda Meet and Eat 5 in Jacksonville



DSC07614 by Gerald Mugar, on Flickr


DSC07618 by Gerald Mugar, on Flickr




DSC07602 by Gerald Mugar, on Flickr

 

What Irperformance indicated why my motor blew:


It was a complete rebuild with new housings and rotors from mazda individually. I have the receipt from the previous owner and the shop the built it in Sarasota.

Irperformance discovered that the Endplay was too loose because the rear spacer was grinder/sanded down and reused.



The Irons had too much heat and failed

The catalytic converter melted

The crank angle sensor was over sighted and the bracket was broken so it wasn't reading the trigger wheel accurately.


Ultimately the apex seal chipped from detonation.

If Irperformance wants to comment, please feel free to clarify even further.


pictures:

https://flic.kr/p/Tf6Bxwhttps://flic.kr/p/Tf6Bxw by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/TQaaBrhttps://flic.kr/p/TQaaBr by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/SAmKaXhttps://flic.kr/p/SAmKaX by https://www.flickr.com/photos/geraldmugar/, on Flickr



https://flic.kr/p/TQaaJkhttps://flic.kr/p/TQaaJk by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/TCH1RKhttps://flic.kr/p/TCH1RK by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/TLxb7Ahttps://flic.kr/p/TLxb7A by https://www.flickr.com/photos/geraldmugar/, on Flickr

 

And someone cut my oil pan baffle. I have no clue why they would do this


https://flic.kr/p/TQabYphttps://flic.kr/p/TQabYp by https://www.flickr.com/photos/geraldmugar/, on Flickr



https://flic.kr/p/TQaaSghttps://flic.kr/p/TQaaSg by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/TQaaSrhttps://flic.kr/p/TQaaSr by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/TLxb1ohttps://flic.kr/p/TLxb1o by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/SxDLAhhttps://flic.kr/p/SxDLAh by https://www.flickr.com/photos/geraldmugar/, on Flickr

 

The Oil Mixing Pump was heavily scored. Its being replaced with a new one.

https://flic.kr/p/TCH2X2https://flic.kr/p/TCH2X2 by https://www.flickr.com/photos/geraldmugar/, on Flickr



The BNRs have minor chipping on the front turbine. They were built to withstand a apex seal shooting through them. BNR checked them out and confirmed that they are good to go and do not need a rebuild.

front
https://flic.kr/p/TLxciJhttps://flic.kr/p/TLxciJ by https://www.flickr.com/photos/geraldmugar/, on Flickr



Rear turbine looks like it never even happened


https://flic.kr/p/SxDMqJhttps://flic.kr/p/SxDMqJ by https://www.flickr.com/photos/geraldmugar/, on Flickr

 

So Irperformance's Rebuild begins

https://flic.kr/p/TLxdR3https://flic.kr/p/TLxdR3 by https://www.flickr.com/photos/geraldmugar/, on Flickr






Street Port Stage 3 on a brand new housing




https://flic.kr/p/TCH4uFhttps://flic.kr/p/TCH4uF by https://www.flickr.com/photos/geraldmugar/, on Flickr




Greedy V-Mount Intercooler kit retaining the creature comforts of AC



https://flic.kr/p/TCH4xghttps://flic.kr/p/TCH4xg by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/TQadbphttps://flic.kr/p/TQadbp by https://www.flickr.com/photos/geraldmugar/, on Flickr


https://flic.kr/p/TAgf9Ghttps://flic.kr/p/TAgf9G by https://www.flickr.com/photos/geraldmugar/, on Flickr

 

Wow, that's some serious carnage.

Good ness I love your car.

 

Damage notwithstanding, that engine is remarkably clean for a rotary. IDK about RX-7 circles, but I do know in RX-8 circles, it is recommended to inspect the cat frequently for any signs of clogging. It is also recommended to replace the ignition coils, wires, and plugs every 20K miles--more often if you frequently take advantage of the high redline. Generally speaking, a weak ignition system results in a clogged cat, which then kills the seals.

I LOVE your car, but reading this thread reminded me of why I can only own one rotary at a time.

 

Oh my god your car is gorgeous.

 

404hp 356tq at 15lbs

 

Had a blast with the car at Deals Gap Rotary Rally. We had to replace the oil restrictors though because there is a lot of blow by in both the hot and cold side of the intercooler piping collecting around the silicone couplers. I'm monitoring the car to see if the new custom oil restrictor bolts that Irp made will help out. Fingers crossed.

https://flic.kr/p/UAfKhDhttps://flic.kr/p/UAfKhD by https://www.flickr.com/photos/geraldmugar/, on Flickr

https://flic.kr/p/UipE8Rhttps://flic.kr/p/UipE8R by https://www.flickr.com/photos/geraldmugar/, on Flickr

https://flic.kr/p/UreTQshttps://flic.kr/p/UreTQs by https://www.flickr.com/photos/geraldmugar/, on Flickr

https://flic.kr/p/UreURqhttps://flic.kr/p/UreURq by https://www.flickr.com/photos/geraldmugar/, on Flickr

https://flic.kr/p/TdvoV5https://flic.kr/p/TdvoV5 by https://www.flickr.com/photos/geraldmugar/, on Flickr