diy "turbo no hit block" '00 BP miata - Page 19 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 07-28-2015, 03:42 PM   #361
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I swapped the gr2860rs for a BW efr6258.....
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Old 07-30-2015, 06:29 AM   #362
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Old 07-31-2015, 04:01 PM   #363
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hood lifters (il motorsport)
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Old 08-07-2015, 02:41 PM   #364
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Do you remember the whistle?
Well, this is the result:







Now I put an open diff with 4.1 ratio
holy one wheel slip!! Almost every corner...

I'm finding a 3.636 gears, but for now the car is usable, whell, it moves!
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Old 08-07-2015, 02:55 PM   #365
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did you set the lash incorrectly? or was that an un-opened diff?
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Old 08-07-2015, 03:04 PM   #366
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Quote:
Originally Posted by 18psi View Post
did you set the lash incorrectly? or was that an un-opened diff?
It was the stock diff, with 230.000 km
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Old 08-07-2015, 03:51 PM   #367
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Do you have the diff protected form the heat of the new exhaust pipe? You are making a lot more heat than stock now and the heat destroys the fluid. How long since you had changed the rear diff fluid?
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Old 08-07-2015, 08:41 PM   #368
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Quote:
Originally Posted by sixshooter View Post
Do you have the diff protected form the heat of the new exhaust pipe? You are making a lot more heat than stock now and the heat destroys the fluid. How long since you had changed the rear diff fluid?

Well, actually no... The pipe is running very close to the diff

The oil had around 1000 km when it started to whistle.

This evening even this open diff started to whistle... fresh oil of course

It lived three days
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Old 08-07-2015, 09:04 PM   #369
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Something isn't right. You're destroying parts that normally don't just fall apart for no reason on our cars.

There's people with 400whp on stock diff and no problems
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Old 08-07-2015, 09:24 PM   #370
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Maybe it can be the use of the car?

I live in the middle of a place that is very similar to a track. Almost every night is like a 15 minutes session, and the last two days I abused my mx5.

Hell, I did several second gear launches... around 3 seconds wheelspin (not joking)
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Old 08-07-2015, 09:34 PM   #371
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lol

well that explains all the broken parts
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Old 08-08-2015, 04:46 AM   #372
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that's the second gear (without launch control) yesterday night, just an hour before the whistle

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Old 08-08-2015, 06:55 AM   #373
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BTW
10* btdc at the last row (sub 20 kPa) && 12:1 afr without fuel cut == backfire.
A lot of backfire. I'm happy

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Old 08-08-2015, 01:04 PM   #374
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Default diy "turbo no hit block" '00 BP miata

I suggest the differential might last longer if it is cooler, regardless of abuse.
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Old 08-08-2015, 08:02 PM   #375
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Man, that looks like a really fun drive home from work, lol.

I figured you just beat the crap out of your car when I noticed how much you broke so quickly. Looks like a fun time driving the car like that and just doing repairs when it breaks. This is probably one of the more enjoyable builds to follow right now.
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Old 08-11-2015, 02:48 AM   #376
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Quote:
Originally Posted by DNA54 View Post
that's the second gear (without launch control) yesterday night, just an hour before the whistle

YouTube
Damn that was a cool launch ...
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Old 08-11-2015, 02:11 PM   #377
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Quote:
Originally Posted by 90civichhb View Post
Man, that looks like a really fun drive home from work, lol.

I figured you just beat the crap out of your car when I noticed how much you broke so quickly. Looks like a fun time driving the car like that and just doing repairs when it breaks. This is probably one of the more enjoyable builds to follow right now.
well, rebuilding eventually is annoyng

Maybe the crush sleeve is the cause of the broken diff(s)?

from Weir Performance - Solid Pinion Spacer Kits

Quote:
Our solid pinion spacer kits are over 3X stronger than the typical o.e.m. crush sleeves. What does all this mean? What these parts do when correctly installed is set the distance between the inner and outer pinion bearings (bearing preload). At the same time, these parts also locate the pinion gear relative to the ring gear within the casing. So, why does the crush sleeve fail? It fails because it is too weak to resist deflection when high pinion loads are applied. This is why we often hear people say, “my ring and pinion finally blew up”. The failure is not instantaneous as it would be if the gears were over-powered. The failure happens over time, due to repeated hard driving. High pinion loads deflect the pinion gear over and over until the o.e.m. crush sleeve becomes “loose” and cannot properly maintain the bearing preload. This also allows the position of the pinion gear within the casing to move causing misalignment of the ring and pinion gears. Over time, this leads to “howling” gears followed by “ground up” gear teeth and eventually destroys the gears. Protect your ring and pinion with one of our high strength steel solid pinion spacer kits. All kits come with instructions and shim sets.
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Old 08-14-2015, 12:55 PM   #378
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A little bit of aluminum heat wrap!









The other brake lines are a little bit cooler because of the shielding

a little inspection: still zero shaft play, even now after 11.000 km of rape



I also found another 3.636 ring&pinion, seems ok. I can have it next week.







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diy "turbo no hit block" '00 BP miata-wp_20150812_010_zps5ljt1yry.jpg   diy "turbo no hit block" '00 BP miata-wp_20150812_006_zpsltbe6tbu.jpg   diy "turbo no hit block" '00 BP miata-wp_20150812_002_zpsitnojahc.jpg   diy "turbo no hit block" '00 BP miata-wp_20150812_001_zpsearbxlc8.jpg  
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Old 08-18-2015, 04:03 AM   #379
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DW200 installed, the afr didn't changed with the rx8's at 100%, so the oem pump wasn't at his limit.
I also installed the rc's 820cc. It is possible to idle at 14.7, but very rough.. 14.0 is fine
Now it's time to tune all the map, again
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Last edited by DNA54; 08-18-2015 at 04:58 AM.
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Old 08-20-2015, 02:57 AM   #380
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Tuned for 11-11.8:1 and 250 kPa. I cannot go any further because of the 250 kPa map sensor. I can reach 220 kPa in first gear (spinning)

Maximum duty cycle of the RC's: 56%
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