RxEric

Possibly wheel bearings?

RxEric

Stupid question alert why is there a stench ? Raw unburnt fuel left behind in the pipe that starts heating up due to heat comingg off the exhaust system?

Legot

iTrader: (1)

It's just what engine exhaust smells like un-processed. IMO it's not as bad as an uncatted piston engine, but its still noticeable (not intolerable though).

mazdafan1892

Possible but I dont believe its that. Bearings sound like being in a tunnel when something is wrong.

RxEric

2 different friends ( 1 Mercedes e320 1 bmw m4) both with those symptoms one ended with a bad tie rod end and another with bad stabilizer links and a wheel bearing STARTING to go so he swapped it out anyway idk if that helps but its another thing to look at if your already paying for them to check out the car

BigCajun

iTrader: (1)

It pops out.

Steve Dallas

I had a catless midpipe for about a year. The way air flows around and through my house, the smell would permeate my house if I started the car in the garage or the driveway. It would also get into the car if I happened to be sitting at a stoplight with the wind blowing from behind. It would cling to my clothes and hair, and I would wear that perfume all day. I got tired of being told I stink, so I had a race cat welded in. Much better.

Probably get the BHR midpipe. The RB midpipe is known to lose its packing over time, and is not much quieter than the BHR. The BHR sounds very similar to stock, with the addition of a rushing or wooshing sound. If you want it really quiet, Charles might be willing to weld a second resonator in.

Neither of the Magnaflow units lasts very long. The catalyst melts from the heat of the rotary very quickly. Your best bet is OEM, HJS, or whichever one BHR is using. The only one that will stand up to track or autoX use is the HJS.

Byproducts of combustion are noxious gases, such as nitrous oxides and sulfur dioxide.

The most likely possibilities are disintegrated spring seats or shock mount bushings, sway bar bushings that are damaged or need to be greased, damaged shock absorber, and differential that is damaged or filled with the wrong fluid.

iAchilles

Thanks Steve for answering the magnaflow question. I was going to do some research on the part, because I know most catalyst can't withstand the heat. Which is why I chose the BHR.

RxEric

Thanks guys il definitely look into that

reneeh63

Thanks - guess I'll just have to get a little rough with it!

BigCajun

iTrader: (1)

I was going to drill a hole in the replacement and put it back in, but I never got around to it.
It's buried in my garage somewhere, I'll see if I can dig it out.

06RX-8

Hey I'm not sure if this is the right thread but I just wanted to ask a quick question. Will a 04 door panel, fit on a 06?

BigCajun

iTrader: (1)

Idk, I imagine it would, but there is a subforum for interior threads.
You might look there.

gwilliams6

Pretty sure it would fit, there were no major body changes until the '09.

Rarealton

Hey so I got my rx-8 (its an 05 Manuel) in July and it had 93k miles on it so I went a head and replaced the ignition coils and spark plugs. After wards though I started to get a lot of white smoke out of the exhaust so I looked on here for answers why and everything I saw said it needs a new engine. So my first question is does it need a new engine?
And I did have it towed to a few places to see if they could find the problem one place wouldn't touch it(cause it rotary engine) second said they would replace engine and it cost me $9k for new engine I told them no car not worth it and the third place I took it too they drove it around to look for white smoke and that was 2 days ago and the white smoke never showed up for them now I've had it for a day and drove it and their is no white smoke.
So my second question is what would cause this.

Lariats&Ariats

I hate to be an old fart but seriously you haven't done enough reading on here. If you had you would know the first step to any major diagnosis is a simple compression test. It has to be done by mazda or a rotary shop though. Also are you throwing and cel's. Smoke from your exhaust is usual oil or gas, oil tends to be light blue and sweet smelling. Gas tends to smell foul or like poorly burnt fuel. Did you not get a compression test performed before you bought her?

BigCajun

iTrader: (1)

This is the Dumb Question thread.
Withhold judgements please.

archwisp

iTrader: (1)

Was it a thick cloud or a misty cloud? The former usually indicates that your engine is burning coolant which means your engine is likely toast due to coolant seal failure. A light misty cloud could be condensation in your tail pipe which is harmless.

A recent condition I also learned about is that water in your gas can cause your exhaust to emit puffs of light vapor on an interval - like every 10 seconds.

Edit: Your next course of action should be to get oil and gas samples and send them off for analysis.

Rarealton

First it was a thick cloud then it started to be thin it was rainy so I do think the thinner one was water but it was real thick (white) at first and sweet smelling. Also I do think I have a compression test from it from when I did take it to Mazda I just got to find the paper with all the info on it. (When I get the paper from my dad I will post the compression test results if he can find it)

To answer Lariats question no I didn't think about it when I did.

Littutor

To answer Lariats question no I didn't think about it when I did.[/QUOTE]
Unfortunately at 93,000 + miles you REALLY need to get a compression check. No matter what the problem is at this mileage, (on an original engine) it may be compression failure. The fact that you had your car towed to various places says that there may be an engine issue.

Gray Boy

I've heard stories that the cat is a huge failing point. I want to get rid of it, but first I would like to know if there are any negative effects from installing a midpipe, besides the noise levels. I'm sure a check engine light will come on, but will it actually have a negative effect on the engine?

iAchilles

No negative affects on the engine that I am aware of. A mid pipe will allow for better flow of exhaust out of the engine. Other than smell noise and CEL. There are no other problems I am aware of. Unless you have a state Emissions or MOT. Then you will be sure to fail either.

BigCajun

iTrader: (1)

The catalytic converters being damaged by faulty ignition components to be exact.
It can be argued that the damaged cats were the biggest reason for engine failures on the RX8.
Mazda's failure to realize or admit the coils were a weak point contributed to the problem as many customers trusting their 8s to the dealerships for care under warranty weren't aware that they didn't view the coils as a part of periodic maintenance. By the time owners realized the cats were bad, the engine would already be damaged.
Bad coils kill cats, bad cats kill engines.
I would say more owners install midpipes for peace of mind more than any other reason.
Benefits are slightly better performance, MPG, and peace of mind
Negatives are smell, CEL, possibly failing emissions testing, and noise.
Smell, if you drive with the windows up and in the recirculation air mode, you don't notice it.
CEL, can be masked with Access Port or read and cleared with an OBD scan tool, or Smartphone app with a Bluetooth OBD dongle.
Emissions testing, depends on your location. If you're not in California, there are ways around it.
Noise, depends on the midpipe.
Some do rasp or drone. The BHR resonated midpipe is the consensus favorite.
Just slightly louder and deeper tone with stock muffler.
I have one, and prefer the sound of it over the cat.

reni04

I think this is the RX8 club not the Mercedes or BMW club , just saying.

Nisaja

Hey guys. So a friend of mine bought a 2004 RX-8, 6 speed manual. 30,000 miles on the chassis, around 15,000 on the new engine. The engine has been replaced. Problem is, when we started it, the car just died after 2 mins of idling. We started it back up. So that was fine. Then something really weird was happening with the throttle. So, every time I rev it, the engine would rev up to like 1200rpm, drop down to idle and then rev until I let go of the pedal it's like I'm blipping the throttle right before I rev it. The needle bounces up and down once, and then revs all the way until I let go of the pedal. This happened in neutral btw. Just wanted to know what you guys think.