Notices
RX-8 Discussion General discussion about the RX-8 that doesn't fit in one of the specialty forums.
Sponsored by:
Sponsored by: CARiD

Dumb Question Thread - no flaming or sarcasm allowed

Thread Tools
 
Rate Thread
 
Old May 13, 2019 | 10:51 PM
  #7251  
Ceetee's Avatar
Registered
 
Joined: May 2019
Posts: 17
Likes: 1
Originally Posted by 200.mph
the pedals are know to break. the factory welds on the pedal are ****. remove the clutch pedal and reweld it right. its easy and cheap. places make a bracket for the issue but again its easy and cheap to just weld it up. i think mazda may have a recall on the pedal but dont remember. whats wrong with m/c? i broke a pedal and it didnt hurt anything else
There was a leak with the hose from what I know or i think that's what they said. Bad news now, my car wont crank because I'm thinking the battery/starter is/are shotted. 😭
Reply
Old May 14, 2019 | 10:05 AM
  #7252  
gwilliams6's Avatar
40th anniversary Edition
 
Joined: May 2008
Posts: 2,951
Likes: 142
From: Grapevine, Texas
Originally Posted by 200.mph
the pedals are know to break. the factory welds on the pedal are ****. remove the clutch pedal and reweld it right. its easy and cheap. places make a bracket for the issue but again its easy and cheap to just weld it up. i think mazda may have a recall on the pedal but dont remember. whats wrong with m/c? i broke a pedal and it didnt hurt anything else

There was a Mazda service recall on the pedal, but all they do is check it and replace with another same clutch pedal if they see any stress cracks. You could weld it yourself, but I got a strengthened one from BHR and called it a day. Worth the price for the piece of mind. If you break a clutch pedal while out in the road, you are stuck where you are and will need a tow. https://black-halo-racing.myshopify....d-clutch-pedal


Cheers
Reply
Old May 14, 2019 | 02:22 PM
  #7253  
200.mph's Avatar
FULLY SEMI AUTOMATIC
iTrader: (9)
 
Joined: Aug 2008
Posts: 5,963
Likes: 3,424
From: BALLS DEEP
nah i broke mine years ago and was able to drive home 20 miles. i think welding is the cheapest/easiest option
Reply
Old May 14, 2019 | 08:35 PM
  #7254  
BzyBoy's Avatar
Registered
 
Joined: Sep 2016
Posts: 11
Likes: 1
What does no flaming mean?
Reply
Old May 14, 2019 | 08:37 PM
  #7255  
UnknownJinX's Avatar
Smoking turbo yay
 
Joined: Apr 2017
Posts: 3,119
Likes: 674
From: BC, Canada
Basically don't be a dick.
Reply
Old May 15, 2019 | 04:42 PM
  #7256  
Ceetee's Avatar
Registered
 
Joined: May 2019
Posts: 17
Likes: 1
Is there some possible way that I can release the trunk's frame from the 8? I'm a total noob that's trying to add a spoiler on it. 🤦
Reply
Old May 15, 2019 | 05:21 PM
  #7257  
Ceetee's Avatar
Registered
 
Joined: May 2019
Posts: 17
Likes: 1
Is there any possible way of removing the trunk frame that is under the trunk lip trim? I'm trying to add a spoiler on and still practically a noobie. I've searched and couldn't find anything .
Reply
Old May 21, 2019 | 03:59 PM
  #7258  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,720
Likes: 344
From: Smallville
Originally Posted by Ceetee
Is there any possible way of removing the trunk frame that is under the trunk lip trim? I'm trying to add a spoiler on and still practically a noobie. I've searched and couldn't find anything .

You can't remove the frame on the inside.... you will have to drill through both and add washers or spacers as needed. Depending on where the spoiler goes that's not a big deal really

Just the old adage.... measure twice/drill once 😉
Reply
Old May 21, 2019 | 06:25 PM
  #7259  
Ceetee's Avatar
Registered
 
Joined: May 2019
Posts: 17
Likes: 1
Smile

Originally Posted by dannobre
You can't remove the frame on the inside.... you will have to drill through both and add washers or spacers as needed. Depending on where the spoiler goes that's not a big deal really

Just the old adage.... measure twice/drill once ��
I had to add some different drill sets and drill some big holes in the trunk. Surprisingly, it looked like it was even at the end and the trunk was definitely 2x heavier.
Reply
Old Jun 16, 2019 | 09:31 AM
  #7260  
Red line envy's Avatar
Registered
 
Joined: Aug 2015
Posts: 681
Likes: 358
From: In the 8
So this is where I ask dumb questions lol. Her it is. Which fuel injectors are primary and Which are secondary. And can you swap the red ones out for yellow ones.
Reply
Old Jun 16, 2019 | 02:48 PM
  #7261  
jcbrx8's Avatar
Registered
 
Joined: Mar 2006
Posts: 1,105
Likes: 404
From: Collierville, TN
Originally Posted by Red line envy
So this is where I ask dumb questions lol. Her it is. Which fuel injectors are primary and Which are secondary. And can you swap the red ones out for yellow ones.
Yes, you *can* swap out the red injectors for yellows, but..., if you haven't already, I'd recommend you research and understand... the benefit in doing so, if you should do so, and the changes to your fuel mapping / delivery which will result.

Reply
Old Jun 16, 2019 | 03:18 PM
  #7262  
Red line envy's Avatar
Registered
 
Joined: Aug 2015
Posts: 681
Likes: 358
From: In the 8
Originally Posted by jcbrx8
Yes, you *can* swap out the red injectors for yellows, but..., if you haven't already, I'd recommend you research and understand... the benefit in doing so, if you should do so, and the changes to your fuel mapping / delivery which will result.

So would I have to do somthing with the tuning cause I'm not set up for that.
Reply
Old Jun 16, 2019 | 07:58 PM
  #7263  
jcbrx8's Avatar
Registered
 
Joined: Mar 2006
Posts: 1,105
Likes: 404
From: Collierville, TN
Originally Posted by Red line envy
So would I have to do somthing with the tuning cause I'm not set up for that.
Yes. "Tuning" is mapping the proper amount of fuel to the air metered by your MAF. Changing the size injectors changes this precise fuel metering and will need to be adjusted, i.e. tuned. So, yes, IF you change your injectors you will need an adjustment to your tune.

Changing injector sizing typically is to increase fuel capacity to accommodate turbo / super charging. So, the good news is you don't need to change your injectors unless you're going FI.
Reply
Old Jun 16, 2019 | 08:32 PM
  #7264  
Red line envy's Avatar
Registered
 
Joined: Aug 2015
Posts: 681
Likes: 358
From: In the 8
Originally Posted by jcbrx8
Yes. "Tuning" is mapping the proper amount of fuel to the air metered by your MAF. Changing the size injectors changes this precise fuel metering and will need to be adjusted, i.e. tuned. So, yes, IF you change your injectors you will need an adjustment to your tune.

Changing injector sizing typically is to increase fuel capacity to accommodate turbo / super charging. So, the good news is you don't need to change your injectors unless you're going FI.
Oh I see. I wasn't planning on going FI I was just gonna swap them because I have extra yellows but no reds. And wondered if it would give any gain doing it without the tuning.
Reply
Old Jul 6, 2019 | 02:19 PM
  #7265  
juspe's Avatar
Registered
 
Joined: Jun 2019
Posts: 14
Likes: 0
Question Unflooding - only accelerator pedal or clutch also?

While doing different kind of tricks to unflood...

should I push only accelerator down or clutch also?

In different videos about unflooding they usually speak about accelerator only.

Shame on me about this million times faced problem and idiot question - I NEED HELP.
Reply
Old Jul 6, 2019 | 02:56 PM
  #7266  
UnknownJinX's Avatar
Smoking turbo yay
 
Joined: Apr 2017
Posts: 3,119
Likes: 674
From: BC, Canada
The starter will not engage if you don't push the clutch down, so yes, press the clutch pedal in.
Reply
Old Jul 7, 2019 | 03:29 PM
  #7267  
juspe's Avatar
Registered
 
Joined: Jun 2019
Posts: 14
Likes: 0
Question Premixing, recommendations?

I bypassed my OMP (had to) so I will oil my car by premixing.

How much should I put oil into my gas tank (full tanking)?

Oil recommendations?

When my OMP was working, I premixed already for just in case.
I put 2 desiliters (7 oz) into full tank about 60 litres (16 gallons).

Is that enough also now, when OMP has bypassed?
Reply
Old Jul 8, 2019 | 08:41 PM
  #7268  
REDRX3RX8's Avatar
Registered
 
Joined: Jun 2007
Posts: 716
Likes: 22
That's barely enough for first time, but remember next time run tank to about half or 8 gallons and put that much in.

Always know approx gallons needed, and pure on that basis before filling.

I've run 1 oz per gallon for a long time, and when I took plugs out while at track day they were tan with no black carbon.

I do have the BHR ignition, so I know it's firing right.

I also, left OMP running, but since my car is 6 speed auto, it only seems to use 1 qt every 2000 miles.

Last edited by REDRX3RX8; Jul 8, 2019 at 08:44 PM.
Reply
Old Jul 8, 2019 | 11:13 PM
  #7269  
Loki's Avatar
Registered
iTrader: (1)
 
Joined: Jun 2009
Posts: 8,388
Likes: 1,106
From: Montreal
Premix for regular driving is about 150:1, 100:1 if you're racing with no OMP.
It's a lot easier to calculate in metric: if you put in 50L you need 500mL for 100:1 and 250mL for 200:1. 375mL for 150:1. Cup and a half to a tank, whichever way you slice it.

Why did you HAVE to remove the OMP? That's a little unusual.
Reply
Old Jul 21, 2019 | 08:05 PM
  #7270  
MHONZDA's Avatar
Registered
 
Joined: Sep 2016
Posts: 25
Likes: 3
Cool. Glad there is a thread like this!

Is exhaust braking (not really an exhaust brake but I'm talking about when you leave it in gear with foot off the accelerator to slow down) bad for the renesis, or rotary engines in general?

Is there a benefit to using MazdaEdit on a stock RX8? Is it just for tuning or can you change other stuff?
Reply
Old Jul 21, 2019 | 09:27 PM
  #7271  
IamFodi's Avatar
Registered
iTrader: (1)
 
Joined: Mar 2014
Posts: 865
Likes: 85
From: Philadelphia, PA
Originally Posted by MHONZDA
Is exhaust braking (not really an exhaust brake but I'm talking about when you leave it in gear with foot off the accelerator to slow down) bad for the renesis, or rotary engines in general?
Engine braking.

I asked a related question a few years ago. AFAICT, there's no known problem with just letting off the gas while the car is in gear and letting the car decelerate on the overrun. Makes sense; if there were, track use would kill these engines pretty quickly (every braking zone involves decelerating while in gear, presumably with the engine at high RPM).

Technically, it's generally a good idea not to engine brake when you can use your regular brakes. But it's not like you have to clutch-in every time you slow down or the engine will grenade. Just don't engine brake instead of normal braking unless you're on a long downhill or something.

The only potential problem with engine braking is if you downshift without rev-matching. Always takes my breath away that so many people think that's even a thing. Best-case scenario is excess clutch wear; worst-case scenario is that plus weird shock loads on the engine. But I'm assuming that's not what you're talking about.
Reply
Old Jul 21, 2019 | 09:43 PM
  #7272  
MHONZDA's Avatar
Registered
 
Joined: Sep 2016
Posts: 25
Likes: 3
Engine Braking! That's it. Wasn't coming to me for some reason.

So I just got my RX8 and was driving it yesterday and today. It's been awhile since I've had a sporty car, but my old habits are coming back. I definitely still have the instinct to engine brake on most slow-downs, and to rev-match to make a smooth transition, but I'm still learning the rev-match points, so there have been a few that were slightly jarring which is what got me wondering if it was even good for this engine. I think the renny actually has more engine braking power than my 2000 celica gt did.

I didn't expect there to be anything wrong with it but just had to ask.
Reply
Old Jul 21, 2019 | 09:48 PM
  #7273  
UnknownJinX's Avatar
Smoking turbo yay
 
Joined: Apr 2017
Posts: 3,119
Likes: 674
From: BC, Canada
I would think if you have the factory OMP intact, it will keep injecting oil into the combustion chamber even with the car engine braking.

If you don't have OMP and only premix, this might be a problem, but even then, I believe the car injects some fuel when engine braking.

And yeah, definitely rev match when downshifting. I don't even get how you can drive a standard and not know how to rev match - that jerking and bucking motion is just very uncomfortable.
Reply
Old Jul 22, 2019 | 06:31 AM
  #7274  
REDRX3RX8's Avatar
Registered
 
Joined: Jun 2007
Posts: 716
Likes: 22
I've seen people engine brake, and it just creates extra wear on clutch, trans, engine, etc.

Drive car hard, put on brakes hard, and pull up the gear you need coming outta turn, but don't use engine to slow any more.

Brakes are very good at stopping, and pads are cheap to replace compared to clutch plate.

Now for sane driving, just put on brakes until car is about to stop, and push in clutch.
Reply
Old Aug 12, 2019 | 07:59 AM
  #7275  
Itsfeggy's Avatar
New Member
 
Joined: Aug 2019
Posts: 2
Likes: 0
How much is a good price for a 2004 broken down rx8

All it needs is a rebuild and, I'm 99.99 percent certain one of the apex seals snapped/came off/ broke in on one of the rotors. Other tha. That the car is in fair shape. For a 2004
Reply


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 05:40 PM.