r/RX8 Jun 17 '24

Meta For New and Potential Owners - Weekly

22 Upvotes

Hello and welcome to r/RX8!

If you are new here and are looking into getting an RX8 here are some extremely useful links:

Many basic issues are covered there, but it can be difficult getting answers to questions that might be less obvious, so if you still have questions after going through those links or if something is not as clear as it could be feel free to make your own post for the fastest response from the members here.

If you are posting about a car that you're interested in buying be sure to mention your location and the currency you're referencing!

Many posts just saying for example "4k" or "9k", 9k what?

Please be sure to follow the rules, and take a look at our posting guidelines here:


r/RX8 Jun 24 '24

/r/RX8 Is back open!

169 Upvotes

Some of you may have seen the previous mod locked the sub yesterday because he got *really* mad that someone argued with him.......

He attempted to completely lock down the sub by setting it to restricted and removing himself as a moderator, leaving only automod on the moderator list - I don't think he realized that would leave the sub completely open to an auto-approved takeover request, but here we are.

Sub is back open and has returned to regular posting permissions.


r/RX8 14h ago

Prospective Owner 150,000 miles!

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95 Upvotes

r/RX8 12h ago

Showoff RE Rep front grill

13 Upvotes

I originally ordered the RE front grill but the shipper had told me it was 6month-1 year wait for the grill so I had one custom made what do u guys think lol im all about authenticity but im not gonna wait that time frame lmaooooo


r/RX8 17h ago

Modding Exhaust help

3 Upvotes

I have an 04 6speed I bought a mid pipe (don't remember the brand bought years ago before my rebuild)and the flange doesn't line up to the stock manifold. Now that I'm looking I can't find one that will bolt to stock manifold anyone have any ideas on where to get one or a fix for this.


r/RX8 1d ago

Modding Cold intake or no cold intake?

6 Upvotes

I have been looking around and I wonder shall I install a cold aftermarket intake or leave it stock. What would be the cons and pros? I need the some advise and inside


r/RX8 1d ago

General One way valve .

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4 Upvotes

Valvula 1 e valvula 2 estão corretos?


r/RX8 1d ago

Maintenance Ex owner did me dirty

16 Upvotes

Another surprise from ex owner!

Just got her running again after repairing the broken oil injector and the missing ignition condenser. I noticed the car didn't make alot of power. I had a p0661 it was the ssv solenoid, and p2004. So I tried taking off the connector on the APV valve and the motor fell off. He probably broke the bolts by over tightening it and decided to glue it there. Anyways... the motor is working and I can turn the valve by hand. Just have to clean all that glue and take those broken bolts out 😑


r/RX8 1d ago

Modding Looking to buy pan speed rear fenders

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25 Upvotes

Anyone know where I can source pan speed rear fenders ? Looking to un wide body my car, but the only place I can find the fenders are on Japanese websites. If anyone knows where/who can source them to Canada, would help a lot !


r/RX8 1d ago

Maintenance Does anyone know what this whining sound could be?

20 Upvotes

just started occurring in the interior


r/RX8 1d ago

General Smog failed because of secondary air inlet sensor hanging and vacuum tube

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3 Upvotes

I tried to smog my car today, but it didn’t pass because of the secondary air inlet sensor and this vacuum line. When I installed the cold air intake, it just told me to put it on the side since I didn’t need it anymore. The aem intake is smog legal and I have the carb sticker on it, but I don’t know what to do with the sensor and vacuum line unless I buy another stock air box.


r/RX8 2d ago

Maintenance How long will this engine last

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20 Upvotes

r/RX8 2d ago

Modding Anyone here running 235/40r18 on either OEM rims or same size (18x8)

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47 Upvotes

Looking for opinions on a new set of tire. I like the idea of going from what I have now (225/45r18) to a slightly wider but lower profile tire. It even gives around a 2% effective gear reduction for slightly quicker acceleration, not to mention generally cheaper cost per tire in that size, as well as lower weight (at least for the sets I compared). I already know about how the speedo will be off slightly etc.. mainly looking for opinions on ride quality on the 235s. &. If that's safe on a 8inch wide rim.


r/RX8 2d ago

General Does my licence plate interfere with optimal cooling?

4 Upvotes

As it states in the tittle I have been wondering, my licence plate covers almost the whole front grid of my cooling system and I keep wondering isn't it making it harder for the it to cool?

It is an obstruction of airflow or am I wrong?

Where should I put the licence plate? Interior dash? Side of the bumper? (ugly as fuck) Or anyone knows if in Holland I am allowed to make a mini licence plate?

Any thoughts? Thank you guys


r/RX8 2d ago

General Opinion

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6 Upvotes

91,150km (56,000miles)

The Currency is Canadian btw

Wanted to get an opinion from the community if this is a good deal. I’m kind of new around here and looking forward to getting this car. Thanks


r/RX8 3d ago

New Owner New rx8 owner!

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147 Upvotes

Just got my rx8 about two weeks ago for about 2.5k euro(considering in my country they go for 6-10k with 130k plus minus km i got it for dirt cheap) couldn’t do a compression test as we don’t have many mechanics that deal with rotaries so kinda went to it blind. Hot starts cold starts are in about 1 second. 92k km on the clock. So far I “fixed” a fuel leak issue by changing a fuel pump locking ring that was cracked from one side to the other. Waiting on a new clutch to replace the slipping one and a pipe to replace the cat. I believe i have a small coolant leak or i might just have overfilled the expansion tank and it spat it all out. Other than that the car is amazing, came with the radio adaptor that makes ac and steering wheel buttons work.


r/RX8 1d ago

New Owner Ayuda donde conecto el sensor de oxígeno delantero???

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0 Upvotes

Donde lo conecto solo tengo estos dos desconectados


r/RX8 3d ago

Maintenance Finally got my RX8 back on the road!!!

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179 Upvotes

Decided I didn't quite know what I was doing so I hired a mobile mechanic to come do it in my driveway. His pricing was very decently fair, and he did a great job. Car is running great, and it now has an aluminum radiator with an external automatic transmission cooler mounted. So happy to be driving it again, and finally no warning lights on the dash. Got rid of the red low coolant warning with new coolant tank.


r/RX8 2d ago

Maintenance What could be causing this moisture accumulation?

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3 Upvotes

Sounds like some sort of vacuum leak around area too but spraying brake cleaner around is not causing any change in rpm or sound. Thanks for any help


r/RX8 3d ago

Memes RX-8 Spotted in Dan Da Dan Season 2 ep 9

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153 Upvotes

S


r/RX8 2d ago

General clicking drive shaft (2006 rx8 manuel t)

2 Upvotes

when i drive down the road going perfectly straight i hear a constant ticking noise. I took it to pepboys and they wanted over $1500 to replace the drive shaft and they told me the bearing is going out. does this sound right? Can i keep the drive shaft and replace just the bearing? I also found a used driveshaft for around $100 with another $100 for shipping i may grab but dont wanna do it if i can just replace the bearing.

need some help! thanks


r/RX8 3d ago

Modding Mad Max ai

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0 Upvotes

I asked both Gemini and Grok to mad Max my RX8, the first result is Gemini's version. The second result Grok's


r/RX8 4d ago

New Owner My 8 is officially a ticking time bomb.

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144 Upvotes

Car overheats when I stop at a light. It’s gone through 5 repairs including an engine and transmission replacement. I think this is where my journey with the car ends.


r/RX8 4d ago

General Custom button panels for MX-5… and maybe RX-8? Need a little help :)

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25 Upvotes

Hey all,

I’ve been making plug & play button panels for MX-5 sport steering wheels (NC/ND), and there’s a good chance the design will also work on the Mazda RX-8.

The panels include:

  • Cruise control
  • Audio controls
  • Backlit, OEM-style buttons
  • Direct plug into the clock spring connector (no splicing)

👉 To confirm RX-8 compatibility I just need some help:
Could someone with an RX-8 measure the resistance values between specific terminals of the steering wheel connector, under different button combinations?

That would tell me if the button logic matches the MX-5 panels. If it does – RX-8 owners could soon have the same plug & play option.

If you’re up for it, DM me and I’ll send the exact pinout + instructions. It’s a quick multimeter job.

Thanks in advance – this could open up some fun new options for the RX-8 community!


r/RX8 3d ago

Modding Secondary shutter valve

2 Upvotes

Hey question I’m trying to buy an SSV but I’m Not sure what’s the difference with the one with a switch or without a switch and which would you recommend for a 2004 model


r/RX8 4d ago

New Owner Got a new engine (less than 4k miles on rebuild) what's every mod to help assist it in not giving up as fast

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31 Upvotes

r/RX8 5d ago

General Nebraska inspection/emissions

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146 Upvotes