Jastreb's 2009 Mazda Rx-8, "Isabella"

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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby AHTOXA » Sun Jun 12, 2011 9:11 pm

I'm sure they work just fine for the car in stock shape. There is absolutely no need to increase unsprung weight in this case. Careful choice of pad compound may improve performance but otherwise it should be fine.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Rope-Pusher » Sun Jun 12, 2011 9:41 pm

1974Alfa5spd wrote:Lol stock brakes. Those are facking puny for a sports car. :lol:
You should get some manly brakes, like these. :twisted:

...but before the moths get to them, right?

I just saw an RX-8 racing autocross this morning. Wasn't as fast as the Neons, but he was having fun and it ran OK.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Jastreb » Mon Jun 13, 2011 2:19 am

1974Alfa5spd wrote:Lol stock brakes. Those are facking puny for a sports car. :lol:
You should get some manly brakes, like these. :twisted:


Why so I can be more like these guys?
Image

1. The suspension is unloaded with the car on the jack, so the knuckle and rotor sit lower relative to the wheel well, making them appear smaller.
2. With a big brake kit, I would not be able to run my winter wheels and tires.
3. As Tony said, the brakes are quite adequate for the job. Remember, this is not a 4000 lb German brick. If anything, I might go with a more aggressive pad when it comes time to change them.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby DKaz » Mon Jun 13, 2011 2:01 pm

I want those R3 wheels! Let me know if you ever want to sell them. lol. Sweet ride.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Jastreb » Sat Jun 22, 2013 6:49 pm

Figured I'd bump this thread with a new pic.
Image

Now at 60k miles.
Also, I haz brake pad deposits soon after a recent brake job :( Or at least I hope they're deposits and not an actual warped rotor. Maybe I was e little over-enthusiastic testing out the new pads?

I guess I'll try re-bedding them to see if it helps... Anyone have better ideas short of re-surfacing the rotor?
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby AHTOXA » Sat Jun 22, 2013 8:08 pm

are you starting to worry about apex seals now? I have read some horror stories of rx8s around 70k miles.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Rope-Pusher » Sat Jun 22, 2013 10:03 pm

AHTOXA wrote:Image
are you starting to worry about apex capes now? I have read some horror stories of rx8s around 70k miles.

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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Jastreb » Sun Jun 23, 2013 3:56 pm

AHTOXA wrote:are you starting to worry about apex seals now? I have read some horror stories of rx8s around 70k miles.


The blown seals were more of an issue for early production (2004-2005) RX-8s. Mazda has since made improvements to address seal lubrication (cue Rope with another random picture :p ). For Series II RX-8s (MY2009+), an extra oil injector was added to shoot oil at the apex seal, increased oil pressure etc..., and so far there have reportedly been very few failures. So no, I'm not worried.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby AHTOXA » Mon Jun 24, 2013 11:42 am

It's likely that forums like The Car Lounge are blowing things out of proportion. It just seemed to me that there were RX8 owners and former owners on there that made it sounds like the Renesis would blow no matter what.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Rope-Pusher » Mon Jul 01, 2013 7:49 pm

Apex seals have leaked since the beginnings of time.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby noob5,000,000 » Mon Jul 01, 2013 11:13 pm

I really, really like the look of the post-facelift RX-8s. Even the stock wheels are great.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby 94Corolla5Speed » Mon Jul 01, 2013 11:24 pm

Jastreb wrote:Figured I'd bump this thread with a new pic.
Image

Now at 60k miles.
Also, I haz brake pad deposits soon after a recent brake job :( Or at least I hope they're deposits and not an actual warped rotor. Maybe I was e little over-enthusiastic testing out the new pads?

I guess I'll try re-bedding them to see if it helps... Anyone have better ideas short of re-surfacing the rotor?

So beautiful and jealous. Of the car and scenery alike.

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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Jastreb » Tue Jul 30, 2013 5:08 am

94Corolla5Speed wrote:So beautiful and jealous. Of the car and scenery alike.


Thanks! Though I remember you posting some great roadside scenery shots yourself.

Not all fun and games though. I've got the dreaded ambiguous P0139 - Rear HO2S circuit (O2 sensor) slow response... Car seems to be running fine though... This will likely distract me from taking care of my annoying-ass brakes this week.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby theholycow » Tue Jul 30, 2013 6:34 am

Jastreb wrote:Not all fun and games though. I've got the dreaded ambiguous P0139 - Rear HO2S circuit (O2 sensor) slow response... Car seems to be running fine though... This will likely distract me from taking care of my annoying-ass brakes this week.

Brakes first. P0139 can wait, it's no big deal.
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Re: Jastreb's 2009 Mazda Rx-8, "Isabella"

Postby Jastreb » Tue Jul 30, 2013 8:40 pm

Well the brake issues are an annoying squeal caused by missing anti-squeal shims, and pad deposits on the rotor leading to brake judder. Going to take the rotors off and scrub with brake cleaner. So nothing super-critical. On the other hand, I found a loose hose-clamp between the air box and the throttle body (after the MAF). Seems like I jostled the airbox around too much when I was changing the air filter 2 days ago. Tightened it up, and hoping this takes care of the code. (EDIT: Code is gone for now.)
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