RX8 Hillclimb - gearbox failure

[@Dosalt]

I had a RX8 a while back, I remember thinking if I ever had to track that, first thing I would change is the synchro/transmission. It use to jump from a gear as well. And this was while it was brand new, sold it with less than 20000km. Handling and the Renesis is amazing and I miss it to this day.

[@miikaeatsbagels7320]

Does anyone know if they’re alternatives being sold? Because I noticed launching from second or rev matching on a downshift the brass synchros tend to go.

[@Thee_Snow_Wolf]

@@miikaeatsbagels7320 If you're looking for a stronger gearbox, apparently the RX8 5 speeds are the strongest of the stock boxes.

[@jadenbatt3158]

That feeling when you just keep jamming it in gear and hear that awful grind and get kicked right back out of gear only to try again with the same result… horrible feeling. Happened to my ‘95 mustang gt /:

[@Krst22ify]

That PHYSICALLY hurt

[@abruechert82]

Me every time I drive my RX8 with bad 4th gear synchro.

[@Kana0211]

My fj with bad 3rd and 5th gear syncros

[@noob4ever88]

5th

[@GwopUpEnt]

second

[@alexanderillig6206]

Big facts, same here 🤣

[@zorbcck]

Thought it was just mine 🤣

[@recheveste31]

I would be piss off too but it happened to my gearbox. Anyways. nice driving!

[@bennystippick8156]

Dude you tore that track a new one!

[@GTFour]

Man, what a car though

[@Mikaeel_Ally]

I've never seen a hill climb Rx8 with a renesis in it lol

[@michaeldragos]

It's more than 250 kg lighter than stock, I'm using a Samsonas dogbox now, with very short ratios, fully adjustable race suspension, big AP brakes, so it's decent, even with the Renesis :)

[@devonswindell9735]

I like the renesis. What other 2 rotor makes 230hp na?

[@michaeldragos]

@@devonswindell9735 13B PP can make 300 at the wheels, but this is not an engine you can use on the street..

[@devonswindell9735]

@@michaeldragos I meant stock

[@StephOneization]

Good Drive, I have a 231 CV for street, I want to see more videos anda pics, please.

[@michaeldragos]

Hello, you can see more pics/ videos in my Instagram account: dragos.mihai.5249

[@StephOneization]

@@michaeldragos ok thanks Michael

[@puspakamalan]

need more video about ur car . very nice driving.

[@Einstein_0002]

my toyota corolla ee90 has the same problem..4th and 5th fcked up so much that I had to drive 60km/h on a highway and 20km/h on hill climb..I feel this pain

[@neobz3236]

Some transmissions can't last under a brutal beating

[@Wilma5532]

Unfortunately renesis transmissions can't handle daily driving 💀

[@TRlANGLZ]

This is some amazing driving. Aside from weight shedding, what has been done to the powertrain?

[@michaeldragos]

Large street port Renesis, AEM intake, IGN-1A coils.

[@georgestam1710]

Omfg! Had goosebumps only by the sound.. Awesomeness driving. Very good camera position and clear raw sound, without music and crap. Wish you the best buddy, rebuild it and drive it's shit out! Cheers!

[@michaeldragos]

Thanks, right now I have a Samsonas dogbox gearbox and I'm swapping the engine to a 13B-REW (RX7 FD turbo). Should be fun :)

[@georgestam1710]

@@michaeldragos sweet! Keep us updated buddy!

[@Grayson203]

​@@michaeldragos please post videos on the whole process, me and my buddies would greatly appreciate it! Working on getting parts for our own rew swap

[@TheMeniru]

Suggestion, lower the camera slightly to improve visibility in left corners. Now the mirror is blocking the view

[@YszapHun]

"I think the gearbox is screwed up!!" /Big Smoke/

[@YouOnlyIiveTwice]

If you can't find 'em, grind 'em.

[@Hypershiftmediajake]

Damn it that hurt my whole body

[@matimad0338]

felt that

[@lun7n]

oof the dreaded obp pedalbox set. mine wobble like hell

[@michaeldragos]

Yeah, I had to reinforce it, but works Ok.

[@RollingRoadEFI]

I feel your frustrations...... oh I would be furious lol

[@knowitalls8079]

I don’t think you Jammed It in gear enough

[@kcrichton7485]

It's flexing sooooo much

[@hashomaadeeb3402]

So what happened exactly?

[@reico6101]

The synchro ring gave up

[@bbehzadi413]

Just swapped the transmission on my rx8

[@berufskampftrinker2792]

What for Oil do you use for the Gearbox? I use 75W90 GL4+5 and never had this problem :o

[@michaeldragos]

The car is used for racing only. I used Motul 75W90, but the sincros will give away after 150 km. Anyways, I have a Samsonas dogbox now, you can see the details in one of my videos.

[@julienh4283]

​@@michaeldragos oil is not the problem, I will focus more on the left-hand movement of the left-hand gear lever and handbrake, something is poorly fixed or not rigid enough: poor guidance = gear shifting concerns and destruction of synchro!

[@michaeldragos]

@@julienh4283 In this setup, the gearbox is rigidly mounted via the PPF to the differential. Also, I'm using RR engine mounts, that are much more rigid than the stock ones. Also, for the rear subframe, I'm using Sikky aluminum mounts, so there is absolutely no rubber that could flex. You can see my other video for the current setup, where I'm using a Samsonas dogbox now.

[@michaelwielenga8809]

@@julienh4283 not a single person anywhere in here said oil was the problem with his transmission.

[@devonswindell9735]

@@michaelwielenga8809 it was implied

[@sssfusa]

Thrilling

[@thenet9537]

Awesome

[@keep.it.street5771]

definetely clutch problem

[@jakethericer2169]

What is your alignment? Camber caster toe etc? Looks really stable

[@michaeldragos]

Suspension wise, I have full Hardrace arms in the back and in the front the upper arm is camber adjustable. 2 way BC racing coil-overs, with external reservoirs and adjustable whiteline anti-roll bars. I think I had around -1.5 deg. camber in the back and -1 in the front (but I usually change this every race, after measuring tire temperature differences with a temp. gun) and around 0.2 toe in in the back and 0.2 toe out in the front. Yokohama A005 soft, 235/17" with 1.6 bar at cold all around (will get to 2 bar hot, after 5km of hillclimb).

[@jakethericer2169]

@@michaeldragos ok thanks, I also have all arms adjustable and I will set it up soon. I was expecting that you have more camber F+R. Thanks for sharing it!

[@michaeldragos]

@@jakethericer2169 : I've ran higher camber (e.g. -2.5 rear/ -2 front), but after measuring the tire sides with a temp gun, I've decided to lower it, since I was not using all tire surface in corners. Basically my suspension setup doesn't require so much camber.

[@joseplayer2144]

Does it still have renesis?

[@michaeldragos]

Yes, large street port renesis for now. Next year I'm planning to go for a 13b PP N/A, especially since I have a Samsonas dogbox now.

[@servisrx8mazda277]

@@michaeldragos What transmission? I have a DCT ready

[@michaeldragos]

@@servisrx8mazda277 In the video it was the stock RX8 gearbox. I have a Samsonas dogbox now.

[@servisrx8mazda277]

@@michaeldragos Send me some link to that transmission. Thanks

[@michaeldragos]

@@servisrx8mazda277 just search in google for Samsonas Universal rwd h-pattern 6 speed

[@drtec6349]

downshifting that much you are bound to pulverize that gearbox

[@Raori91]

nb

[@fixpix2589]

Aici esti cu raport de 5.8?

[@michaeldragos]

da, grup de 5.8, cutie stock, pneuri pe 17, cu diametrul de 610mm.

[@fixpix2589]

@@michaeldragos imi place mult masina si mai ales cat de bine mergi cu ea. Am si eu una si urmeaza sa ii pun tot un raport de 5.8.

[@markflint2629]

Driver failure you mean

[@michaeldragos]

Easy for you to say this, from your keyboard :)))

[@devonswindell9735]

I'm 15 seconds in and annoyed by the driving

[@michaeldragos]

Please be more specific, where I can improve my driving :)

[@Marko-hr4rj]

Poor driving skills

[@michaeldragos]

Lol, please be more specific, what & where do I need to improve :)

[@puspakamalan]

he is good enough dude.. what u got , show us

[@MoskusMoskiferus1611]

Jealous

[@yeahnah6468]

Poor social skills