Last post on Mar 13, 2012 at 4:42 PM
You are in the Mazda RX-8
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Mazda RX-8, Coupe
#3159 of 3618 Re: New 6 speed automatic [gmfiv]
Jan 21, 2006 (4:14 am)
Welcome back to the rotary world. I sold my 1987 RX7 when I moved to Boston. Regretted it ever since. Now my RX-8 has revived my soul and it's wicked practical as well.
The fire Japan was a year ago. It split the 2005 manufactured RX-8. I think the 2006's are being delayed because they are switching the RX-8 to a lower priority in order to make more Mazda 3s and such in greater numbers.
#3160 of 3618 Re: New 6 speed automatic [trispec]
Jan 21, 2006 (1:46 pm)
Totally true, the fire was a year ago. They have been back to full capacity for over 6 months now.
Also, the 2006 RX-8 6-speed manual has a decrease in power. 232 as opposed to 238 of the first two years. Although, it is up to 212 in the automatic.
#3161 of 3618 Re: New 6 speed automatic [aviboy97]
Jan 21, 2006 (2:33 pm)
Have a look at the "spec. deck" posted on the RX-8 club forum (it's from Mazda as dealer presales info.). The HP of the manual is as it always was - 238. The automatic now gets the 6 speed auto (suspected to be the same unit the MX-5 got) and the "high power" six port engine - the 212 HP rating is due to the 7500 RPM operational ceiling of the automatics' torque converter (HP is torque times RPM basically). Limit RPM and you get less HP.
Note that I have heard (through the grape vine) that tricks have always been played with respect to the HP numbers - aftermarket (non-Mazda) tests on chassis and engine dynos have always indicated the high power engine actually puts out about 10% less - remarkably close to the allowed error by govt. agencies. I suspect the new automatic numbers are similarly influenced.
The new 2006 automatic still has more than the 2005, and it's tempting, mainly because an automatic can shift faster (and remain under power during the shift) compared to a syncro equipped manual transmission.
If you have seen published Mazda figures backing up your lower number it's probably due to the new Japanese standard measurement method - enforced by their govt. I believe. It's the same engine with the same power - just measured differently.
Jan 21, 2006 (2:41 pm)
The automtatic is less expensive, has those slick Porsche-like paddle shifters on the wheel, AND 6 speeds, so it's no longer in search for a proper gear.
I can't wait to get one myself. Heh.
#3163 of 3618 Frictionless Top Speed
Jan 22, 2006 (8:01 pm)
I went to the tyre bay yesterday to change my 4 tyres (which cost me 4300AED, smth around 1200$.. ouch!) and by the time they were done, my car was still above ground on those lifting machines. So i asked the technichan if it would be okay if he just left it up there for a bit, and he thankfully agreed
So i got up into the car, pushed the handbrake down, put the gear in 1st and starting revving.. went up to 2nd, to 3rd, all the way to 6th gear and my tachometer showed TWO HUNDRED AND NINETY EIGHT KM/H !!! hehe now i know its on a frictionless space, but it felt amazing to see the digits go that high.. Anyway just wanted to share that with you. Cheers!
#3164 of 3618 Re: New 6 speed automatic [pathstar1]
Jan 23, 2006 (3:32 pm)
The HP of the manual is as it always was - 238.
I'm a Mazda dealer. We have to take product tests evey year and when a new model comes out. This year was big for the RX-8 because of the changes. The horse power is listed as 232. I have proof right in front of me FROM Mazda. You can't dispute it. Regardless of Jap. law, or whatever they did, Mazda LISTED the HP at 232.
#3165 of 3618 Re: New 6 speed automatic [aviboy97]
Jan 23, 2006 (3:48 pm)
"Also, the 2006 RX-8 6-speed manual has a decrease in power. 232 as opposed to 238 of the first two years."
From what I know, the engine in the '06 has had absolutely no changes. The engine makes the same power in '06 as it made in '05.
Before you get all fired up, let me explain: the RATING was revised for the '06 models. Yes, I've no doubt you have evidence right in front of you indicating a lower number. But many models from many manufacturer's have lowered their hp ratings due to changes in the methodology used by the SAE (Society of Automotive Engineers) to measure hp. You should have seen all the ranting and raving over in the Sienna and Odyssey boards when the new ratings came out.
In other words, an '05 (or '04 for that matter) RX-8 would ALSO have been rated at 232hp under the new guidelines.
Therefore, when pathstar says that the hp stays the same, he means the ACTUAL hp is the same since the engine in the manual version is the same, even though the hp RATING is different.
#3166 of 3618 Engine Questions
Jan 23, 2006 (6:26 pm)
Hi, I recently purchased an 04 RX-8 with 6400 miles. One question I have is this... Is it normal for the oil dipstick to have a greyish brown "foam" on it? If this was a conventional piston engine, I would see this as a bad sign it looks to me that water has been mixed with the oil. Is this possible with a rotary engine? Any advice is appreciated!
#3167 of 3618 Re: Engine Questions [ksrx8]
Jan 23, 2006 (7:34 pm)
Short answer, it's normal. Many see it.
Engine coolant mixing with the oil in a rotary engine is possible. In fact it is the most common failure mode ("O" ring failure). I doubt that is what you're seeing, however. The rotary has a very poor "crankcase ventilation system", and water vapour (and other contaminants) do build up.
The white grunge on the oil dipstick is very common and often commented on. The dipstick tube is cool, so water vapour condenses there. Be careful not to get that stuff on your hands or cloths as it's acidic.
You can reduce the buildup by insulating the dip stick tube. If you use "ethafoam" it has the added benefit of making the tube opening much easier to see when replacing the dipstick.
#3168 of 3618 Re: Engine Questions [pathstar1]
Jan 24, 2006 (5:51 am)
Clearing the "white grunge" from the tube requires at least three or four dips of the stick when checking the oil level. I often fine the "white grunge" gets smeared down onto the measurement area. The "white grunge" didn't exist until the weather turned cold.
There was a single instance on the first really cold morning, 10F, up in Maine, when the engine coolant level light flashed on. I topped off the coolant and haven't had the problem in the last 2500 miles. But if the "O" goes bad, wouldn't I see an engine coolant levels lights constantly? Also wouldn't there be huge smoke plume coming out the tail pipes.
A friend of mine had a Vega back in the 80's, with a bad case of the engine coolant in the engine pistols. When he stepped on the gas, a massive eruptions of white smoke would occur. We're talking an smoke generation mechanism similar to the battle field smoke systems available on M1 tanks. The next four drivers cars behind my friend's Vega would be swallowed whole by the cloud. There was even a rear-ending accident.
Sorry about the story. Middle age man disease you know.