Rep Power: 0

Just wondering, why isn't overdrive considered a gear? Why not just say 5speed auto instead of 4speed auto + overdrive? What's the diff?

 
Rep Power: 320

Because the 5-Speed Manual people won't be happy? [IMG]i/expressions/face-icon-small-confused.gif[/IMG]

 
Rep Power: 0

it's wierd since my auto definately has 5speeds... try going around 100km/h (doesn't have to be this speed but what d hey) while stepping on the gas pedal ever-so lightly... then press the gas a bit harder, it seems to shift and the rpms go up a bit... then go back to 100km/h and shift the auto thingy to D3 (this puts it in 3rd gear right?) anway, the rpms climb a lot more (and definately more noisy) when forced to go into 5th (overdrive) to 3rd... so i guess we do have 5gears on our autos?

can anyone explain? or correct me if i'm wrong? [IMG]i/expressions/face-icon-small-confused.gif[/IMG]

 
Rep Power: 0

so basically, why isn't "overdrive" a full fledged speed? why can't we call it 5th?

 
Rep Power: 0

umm i'm pretty sure our 7thgen civic autos are 4 gears only

 
Rep Power: 0

No, your auto doesn't have a 5spd transmission, and yes, overdrive is still considered one of the gears.

 
Rep Power: 334

umm i'm pretty sure all asians eat rice mostly. Just coz it seems like a fact and is generally accepted by all, doesn't cancel out the possibility that it might not be true.

Go through engineering, get a Masters and get hired by honda to put together cars, then tell us for pretty sure.

However, I'm also not agreeing that it's a normal gear for automas though. It's there for only certain occasion and in normal circumstances, its harder to get to with an automa tranny than a manual. You can skip to 5th if you want, in a manual. But in an automa, you gotta go through 1st gear, then to 2nd, then to 3rd... all the while holding pedal down.

 
Rep Power: 0

ummm saying that the 7thgen civic is 4 gears is like saying the sun is yellow.. pure fact

saying all asian eat rice is a opinion and a stereotype

 
Rep Power: 334

Opps Sorry I brain-farted!

 
Rep Power: 0

So is the earth flat or round?

This discussion is so ridiculous that I can't believe we are even debating this. The 7th gen Civic manual trannies are 5spd, the autos are 4spd. This has been documented on the new car invoice sticker, in your user's manual, on Honda's website. And to top that off - I've examined an auto tranny before from an EM Civic and have verified that - yes- it only has 4 speeds.

Sheesh - can we lock this thread already?

 
Rep Power: 0

umm I'm pretty sure your a n00b, what the hell are you talking about?
You think you need a degree in engineering and a masters just to know our 7thgen Civics are 4 speed Auto, your too smart honestly ,
plus that was a ridiculous argument, comparing a sterotype with a fact.
And why the heck are you explaining how automatic transmission works, you think no one knows that?

 
Rep Power: 0

Edited by moderator.

Pointless flaming.

 
Rep Power: 0

 
Rep Power: 0

also 10 dollars says his car is bone stock
arf arf

 
Rep Power: 0

the "fifth speed" you guys are talking about is simply the torque converter locking up. It was a wonderful invention for automatic transmissions. The torque converter under normal operation is not a direct link from the engine to the transmission, it slips a little bit, unlike a clutch which directly connects the engine and transmission. When the automatic transmission is in overdrive, over a certain speed the torque converter "locks up" making it like a manual transmission in the sense that the flywheel is turning the same speed as the transmission. The main reason for the torque converter locking up is for fuel economy. Depending on the vehicle there can be a big difference between the torque converter locked and unlocked. I have chevy truck with an LT1 and a 700r4 transmission, but i couldn't get the tranny to interface with the LT1 computer properly, so i had to put a switch in to lock up the torque converter, it definately feels like another gear, but it's not. It lowers revs at cruise speed by about 300-400 RPM

 
Rep Power: 311

What you might be feeling is the torque converter clutch locking up in overdrive. This is a feature and gas saver. What will happen is you'll go through all 4 gears, then if the load is light enough the tranny will lock the torque converter clutch. This gives you direct drive like a manual tranny does.

I might be wrong since I dont own an automatic, but this is how alot of auto trannys work. FWIW..

 
Rep Power: 311

Beat me by 1 minute! I have a chevy truck also with a 700r4 to hehe. [IMG]i/expressions/laugh2.gif[/IMG]

 
Rep Power: 0

get a master?? we'd be proud of u if u can graduate from retard institute...
and no.. there r no 5th gear or OD on civic... it's a myth believed by dum@ss like urself...

have a nice day y'all!

 
Rep Power: 0

My car is called a "5 speed automatic" and my 5th gear is the overdrive. The manual version is considered a "6 speed manual" with the 6th gear being the overdrive. I think it just has something to do with teh vehicle manufacturer, some spec off all the available gears, and others just spec off the actual power producing gears.

 
Rep Power: 361

since when does our car have over drive?

 
Rep Power: 0

BigHippo guy is RIGHT! If you count the number of shifts it feels like 5 because of the torque converter lockup. It's four, its called overdrive because the top gear (4th in auto) is not a reduction gear like first gear where the motor turns many times for 1 rotation at the wheels, in 4th the wheels turn more than once for 1 turn of the motor.

Craig.,

 
Rep Power: 0

I thought it was the vtec that helped it raise rpms cuz when Im cruzing 4th gear, at 4000 rpms then I step on it, it seems to go faster, its wierd, but I was pretty sure it was the vtec that helped it. And I wasn't just stepping on it really fast or anything just a little nudge.

 
Rep Power: 0

then i guess the sticky in the street encounters forum needs to be editted

 
Rep Power: 0

Whoever doesn't believe these guys, might want to read How Automatic Transmissions Work

My Ride

 
Rep Power: 0

Every car made within the past 2 decades has at least one overdrive gear. An overdrive gear is any gear which has a gear ratio of < 1. For example - the K20A2 transmission's 6th gear has a ratio of 0.738:1. This means that for every 1 turn of the input shaft, the output shaft turns 1/0.738 = 1.36 times. This allows the car to achieve a greater speed at the expense of less torque. It also enables you to cruise at freeway speeds w/o wasting gas and quiets the engine down a bit.

A 'direct-drive' gear is any gear with a ratio of 1:1. When you're in direct-drive, the input shaft is directly connected to the output shaft, and they both turn at a 1:1 ratio. With 5-speed transmissions, 4th gear is usually direct-drive, and 5th gear is the overdrive gear. With the K20A2, there is no direct-drive gear (4th gear has a ratio of 1.147:1), while both 5th (0.921:1) and 6th (0.738:1) serve as the overdrive gears. I don't have the exact gear ratios for the 7th gen Civic in front of me, but for the automatic, I know that there is no direct-drive gear, and that 4th gear is the overdrive gear.

 
Rep Power: 0

7thgen Gear Ratios

 
Rep Power: 400

yeah, there is an overdrive on the civic. who the heck said there wasn't? my eyes are tired and I can't read. [IMG]i/expressions/face-icon-small-confused.gif[/IMG]

 
Rep Power: 0

what?? im confused. i thoguht autos were 4 speed with overdrive, and 3 speed without, thats why when u take off da overdrive in an auto,it only got 3 gears???

 
Rep Power: 311

What your most likely feeling is the tranny downshifting to a lower gear. Some call this the passing gear which at highway speed is probably D3.

 
Rep Power: 400

Any gear that has LESS than a 1.00:1 ratio is considered an overdrive gear. Even if the car company doesn't call it that. On a 4 speed auto, generally the 4th gear IS the overdrive gear.... there is no 5th gear.