Mini_FD '99 Flyin' Miata Turbo Build
#442
Supporting Vendor
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Join Date: Sep 2010
Location: Lake Forest, CA
Posts: 7,991
Total Cats: 1,024
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.
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.
#444
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
#450
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
#451
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
DSC07614 by Gerald Mugar, on Flickr
DSC07618 by Gerald Mugar, on Flickr
DSC07602 by Gerald Mugar, on Flickr
#452
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
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
#453
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
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
#454
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
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
#455
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
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
#457
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.
I LOVE your car, but reading this thread reminded me of why I can only own one rotary at a time.
#460
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
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