Originally Posted by mazdafan1892
(Post 4708283)
I left my rx-8 running with the A/C on lofor like 30-40 min today waiting for someone in a parking lot. When I tried to shut it off 5 min after, the battery and engine light came on. Then tried to start and it couldnt. I turn off the car and set the alarm. The alarm was weak sounding. Came back like 30 min later and it turned over and the battery and the ignition light disappeared . Still going to take it ti my mechanic to put on the reader. Any ideas???
Just had the car fixed by the dealership too. *EDIT* Be sure your terminals are clean and tight. |
Originally Posted by BradyMayhew
(Post 4708264)
I've been searching for a couple of hours now and cant seem to find the procedure for data logging as well as on that topic some tuning procedures and how to's.. I was looking at some discussions a few weeks back but I cant seem to find them again. Any help on data logging for the Cobb Access Port and other tuning information would be awesome. Thanks!
https://www.google.com/webhp?sourcei...data%20logging https://cobbtuning.zendesk.com/hc/en...How-to-Datalog
Originally Posted by mazdafan1892
(Post 4708283)
I left my rx-8 running with the A/C on for like 30-40 min today waiting for someone in a parking lot. When I tried to shut it off 5 min after, the battery and engine light came on. Then tried to start and it couldnt. I turn off the car and set the alarm. The alarm was weak sounding. Came back like 30 min later and it turned over and the battery and the ignition light disappeared . Still going to take it ti my mechanic to put on the reader. Any ideas???
Just had the car fixed by the dealership too. |
Is the rx8 stock twin turbo or single?
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At a guess, I would think that the RX-8 has 4 turbos from the factory. Im not sure though. There might be 6. I think 2 is too few?
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Originally Posted by RIWWP
(Post 4708392)
At a guess, I would think that the RX-8 has 4 turbos from the factory. Im not sure though. There might be 6. I think 2 is too few?
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Originally Posted by Williard
(Post 4708320)
Calm,
A compression test varies from place to place. I've seen them as low as $105 and as high as about $200. Someone in your area may have a comp tester, that's usually cheaper. Travis |
I think RIWWP is right on the money with 6, 1 per rotor face.
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gravey does a 20b have nine by that logic?
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Yea I think that sounds about right. But aren't there 8 rotors in the GT models?
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Originally Posted by 200.mph
(Post 4708476)
gravey does a 20b have nine by that logic?
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42 is always the answer to life, the universe, and everything.
Can't go wrong with 42. |
nope the # you seek is always 87. damn noobs
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Sorry 200, as RIWWP states "42 is the answer to life, the universe, and everything... " HHGTTG
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shut up gravey. you know not what you speak of. 87 is always the answer
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^Can't argue with that logic!
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Originally Posted by RIWWP
(Post 4708353)
Sounds like either a weak battery or failing battery connections.
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Originally Posted by BigCajun
(Post 4708339)
If you are able to take the battery out, take it to AutoZone or some other parts place and get it tested for free.
*EDIT* Be sure your terminals are clean and tight. |
No, battery terminal connections.
This picture is pretty obvious, but the corrosion can exist out of sight between the clamps and the posts, needs disconnecting both to clean clamps and posts thoroughly, then correct and proper re-seating when reconnecting. https://www.rx8club.com/attachments/...p-img_2576.jpg |
Originally Posted by 200.mph
(Post 4708490)
shut up gravey. you know not what you speak of. 87 is always the answer
It's 69. |
Originally Posted by BigCajun
(Post 4708595)
All of you are wrong.
It's 69. Wow how did this escalate to this :yelrotflm |
I thought that was 23.... Didn't someone make a movie about that with Jim carrey?
Hour and a half to go... Travis |
Here's a dumb question..
If you switch on the air condition right after you start the engine.. will it hurt the engine? (Assuming cold start) If so, why? Thanks! |
Originally Posted by Victor Yap
(Post 4708657)
Here's a dumb question..
If you switch on the air condition right after you start the engine.. will it hurt the engine? (Assuming cold start) If so, why? Thanks! |
Do i really need an upgraded ignition system to run water injection? I can understand that too much water will make the mixture harder to ignite.
Thanks! |
Been out of the RX-8 world for about 3 years but I'm getting my old '05 Sunlight Silver back from its current caretaker as soon as I can sell my '95 Miata.
Any interesting or noteworthy revelations/products for the RX-8 the last 36 months? |
The Sohn adapter has gained popularity. (Lets you inject lubricant of your choice into combustion chamber instead of used engine oil). Revision C ignition coils have become common, but they are delivered in revision B boxes. Goopy Performance has some neat alloy apex seals, and a very clever guy in New Zealand continues to push the boundaries of turbocharging an RX8.
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Originally Posted by NotAPreppie
(Post 4708829)
Been out of the RX-8 world for about 3 years but I'm getting my old '05 Sunlight Silver back from its current caretaker as soon as I can sell my '95 Miata.
Any interesting or noteworthy revelations/products for the RX-8 the last 36 months? SakeBomb has a new ignition kit with Mercury coils. BHR has a new long tube header. |
Sparks from exhaust? :O
I just came home from a hard drive and my fried who was following me had seen sparks shoot out from my car. He hasn't seen if it was from the exhaust because we were driving pretty fast. But the sparks had hit his car and then he had freaked out lol. Just wondering if it's normal. I have a stock exhaust with a gutted CAT.
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If the cat wasn't completely gutted some of the internal insulation could be burning out. I don't know why that would happen though. Are you dragging something?
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Originally Posted by Legot
(Post 4708888)
If the cat wasn't completely gutted some of the internal insulation could be burning out. I don't know why that would happen though. Are you dragging something?
Would this affect my engine in any way? I know these cars backfire. But when my friend said "sparks", I freaked out. |
Dumb Question Thread - no flaming or sarcasm allowed
Originally Posted by Brettus
(Post 3793267)
Here is your chance to ask a question that has probably been answered many times before or you might be afraid to ask because you don't know much about cars etc
No flaming please - just quick honest answers |
I was reading the manual and snow tires are recommended in the winter. Would buying a tire for multi-weather purpose suffice? I see some tires say they are for all conditions, dry, snow, rain whatever? Then there are ones specifically for the snow or racing or such.
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mazdafan1892, dedicated snow tires are the best option for traction and safety when driving in anything worse than light snow. You can drive carefully in up to light snow with a top-rated ultra-performance all-season tire like the newer Continental DWS-06. The earlier top-rated Conti DWS were a favorite all-year-round tire for many RX8 owners. Now Conti has an improved Conti DWS-06 available.
http://www.tirerack.com/tires/tires....Contact+DWS+06 http://www.tirerack.com/tires/survey...jsp?type=UHPAS |
Originally Posted by gwilliams6
(Post 4708932)
mazdafan1892, dedicated snow tires are the best option for traction and safety when driving in anything worse than light snow. You can drive carefully in up to light snow with a top-rated ultra-performance all-season tire like the newer Continental DWS-06. The earlier top-rated Conti DWS were a favorite all-year-round tire for many RX8 owners. Now Conti has an improved Conti DWS-06 available.
http://www.tirerack.com/tires/tires....Contact+DWS+06 http://www.tirerack.com/tires/survey...jsp?type=UHPAS Thanks I will look into it. |
Originally Posted by mazdafan1892
(Post 4708929)
I was reading the manual and snow tires are recommended in the winter. Would buying a tire for multi-weather purpose suffice? I see some tires say they are for all conditions, dry, snow, rain whatever? Then there are ones specifically for the snow or racing or such.
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Every tire manufacturer has to determine what all the tire is going to be good at:
- Lifespan - Dry grip - Wet grip - Anti-Hydroplaning (different than wet grip) - Snow grip - Ice grip If you start with a maximum dry grip tire, like a slick racing tire, think about what has to happen to make it acceptable for wet grip. You have to take away from the dry grip some. Then say you want to have anti-hydroplaning, so you have to take away more from the dry grip to add the tread depth. Then you want to make it last longer, so you have to use harder compounds, further taking away from the dry grip, but also the wet grip some. This process keeps going. To get better snow grip, not only do you need to change tread design that takes even more away from dry grip, you need to go to lower temperature compounds, meaning they can't handle the heat of harder driving, so you are completely away from a racing tire. The tires will even run hot on warm dry pavement, meaning you have lost lifespan too. Manufacturers only have so much they can do in one desired point before they have to start taking away from the other points in a compromise. "All seasons" thus mean that "we have compromised on everything, so it's really not good at anything, but at least it isn't unsafe in any of the 4 seasons". This is why many people call them "no seasons". They just aren't very good at anything. For many of us, they aren't even "acceptable" at anything. For the past 7 years, I've always had a set of snow tires and a set of summer tires. I don't lose anything to what I want out of a summer tire by compromising for snow I will only see part of the year, and I don't lose anything in the snow tire to get something I won't need or use in the winter. So yes, you can do all seasons, it certainly saves space and change-over hassle, but just know that "barely adequate" might be what you end up getting... for every condition. |
All-seasons at all four corners. It's not optimized, but a good compromise. It's not just go, it's stop and turn too. Just snows on the back are effective at only one of those.
I think the 'no season' term comes from those who simply can't drive in snow. |
Originally Posted by Signal 2
(Post 4709069)
I think the 'no season' term comes from those who simply can't drive in snow.
The difference in performance between an "all season" and a snow tire in the snow is staggering. Yes, I've done plenty of new england snow driving on both. Some Tire Rack comparison tests, same test, same car, same surface. And the same thing can be said for the other seasons. "All seasons" have significantly less grip in the wet than summer tires designed for high rain conditions. They have significantly less grip in the dry overall. No Seasons = Not "good" at any season. Just "adequate" (sometimes barely). |
I have Potenza AS tires, they were not good on snow the couple of times I had to drive it when my 4WD was down.
Do below freezing temps adversely affect summer tires, or is it just snowy conditions? |
The temperature really matters. Every rubber compound has an ideal temperature range. Below that range the rubber gets really stiff and loses traction because it's not conforming to the surface as well, above that range the rubber starts melting or "greasing up" from the other chemicals liquifying, and that is a loss of traction as well.
Race tires have a working temperature range of like 150F to 250F. Summer tires are more like 50F to 130F. Winter tires are in the range of -30F to 40F. These are just ballpark numbers, it can obviously vary significantly from tire to tire within a manufacturer, much less between manufacturers. Some examples from my own experience: Bridgestone Blizzaks, a popular snow tire. Great in snow powder, but their traction drops significantly as the temperature warms up. The Yokohama S.Drive (my favorite daily tire) won't start getting stiff till about 30F, but it overheats easily out on autocross. The Dunlop Star Spec handles the autocross temperatures fine, but they get dangerously stiff by about 40F. Khumho XS handle track temps very well, very consistently, but they are noticeably harder as low as 50F. |
Ok, thanks.
I used a TireRack guide when buying mine with performance and wet traction as my qualifiers, and that's what came up. There was another reason, but I can't remember it. |
Originally Posted by RIWWP
(Post 4709073)
Not quite.
The difference in performance between an "all season" and a snow tire in the snow is staggering. Yes, I've done plenty of new england snow driving... |
Warm dry traction definitely does suffer for winter tires, to various degrees on various tires.
Cold (frozen might be a better word) dry pavement still feels better traction with winter tires than all seasons to me. "Ride comfort" is something i have never actually been able to identify or distinguish on any tire anywhere on the scale, brand, whatever. I've never riden on one set of tires that makes me recognize a comfort difference to another set, despite having 2 sets of tires for my 8 to swap between, and 4 sets on my MSM to swap between. I'm sure that's just me though, because other people talk about it, so they must see something i don't. So I acknowlege it, but I can't speak to it. |
Agree to disagree on the worth of all-seasons. Taken up too much in the thread considering. Sorry.
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There are always more opinions out there :) No problem with discussing it.
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Since we're all talking about tire grip, if the tires screech and set off the ABS when braking hard, does that mean the brakes are good and the pads are not worn out?
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Um, nope. Most brake pads provide 100% of their maximum braking capability right up until the material disappears and they won't brake at all any more.
The best way to tell how much pad material thickness is left is to look at it and/or measure. New pads are about half an inch of material. |
If your hearing a sustained 'screech' from your tires then something is likely wrong with the ABS. Momentary 'chirps' as the ABS pulses would be common, but nothing more.
Your car also has a wear indicator, an alarm of sorts, that's a last resort alert for you to change pads...but you don't want to wait that long. You can also generally look at the depth of the center groove. |
^+1
And, if you do your own brakes, don't be 'that guy' and grind the nub off of the rear pads, rear calipers screw in and have corresponding notches. |
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