 How Do Gear Ratios Work? |
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 Mar 11 2004, 11:04 AM
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#1
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 HONDA - BOY  Group: Banned Posts: 3,653 Joined: 27-August 03 From: Chicago Burbs, IL Member No.: 35  |
These are mine:
RSX type S 1st - 3.267 2nd - 2.130 3rd - 1.517 4th - 1.147 5th - 0.921 6th - 0.738 Reverse - 3.583 Final Drive - 4.389 What do they mean?? 
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Mar 11 2004, 11:05 AM
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#2
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Living the dream Group: Moderators Posts: 8,859 Joined: 27-August 03 Member No.: 28 |
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Mar 11 2004, 11:08 AM
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#3
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 Talkin' the talk since 2003 Group: Admin Posts: 28,271 Joined: 27-August 03 From: Seattle, WA Member No.: 27 Car: 2004 VW GTI 1.8T |
basically that means that for every time the engine turns the gear ratio's number, then the wheels turn once. For instance, when you're in first gear, for every 14.3387 times your engine turns (that's your first gear ratio x the final gear ration) your wheels turn once. As the numbers decrease, that means the wheels turn faster at each engine speed, which if, of course, why you go faster in 6th than in 1st.
Hope that helps 
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| Guest_Lee7_* |
Mar 11 2004, 11:13 AM
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#4
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Guests |
it means that you accelerate faster in reverse than you do in 1st
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Mar 11 2004, 11:13 AM
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#5
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Talkin' the talk since 2003 Group: Admin Posts: 28,271 Joined: 27-August 03 From: Seattle, WA Member No.: 27 Car: 2004 VW GTI 1.8T |
That's a pretty common thing, Lee7; don't want to be flying around in reverse all the time
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Mar 11 2004, 11:21 AM
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#6
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HONDA - BOY Group: Banned Posts: 3,653 Joined: 27-August 03 From: Chicago Burbs, IL Member No.: 35 |
Thanks for the info.... I got it now... just never thought about it... till that other thread about shifting...
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Mar 11 2004, 11:48 AM
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#7
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 I will stand, or I will fall. But I will not sit. Group: Members Posts: 13,576 Joined: 4-September 03 From: Somewhere between Chicago and Indianapolis Member No.: 58 Car: Miata & RX-7 |
Something interesting. Take your gear ratios, multiply them by the torque of your engine and that's the thrust that your engine is scooting you along at.
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Mar 11 2004, 12:03 PM
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#8
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HONDA - BOY Group: Banned Posts: 3,653 Joined: 27-August 03 From: Chicago Burbs, IL Member No.: 35 |
QUOTE(DakianDelomast @ Mar 11 2004, 02:47 PM) Something interesting. Take your gear ratios, multiply them by the torque of your engine and that's the thrust that your engine is scooting you along at. My car has no torque!!! 142ft. lbs!!!  
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Mar 11 2004, 03:11 PM
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#9
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Living the dream Group: Moderators Posts: 8,859 Joined: 27-August 03 Member No.: 28 |
QUOTE(Black RSX @ Mar 11 2004, 03:02 PM) 142ft. lbs!!! The same rating as my bicycle when I stand on the pedals! Also if you're really good at matching engine RPM and your speed you don't need to clutch (assumes you've got a synchronized gearbox which I believe most are). |
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Mar 11 2004, 05:42 PM
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#10
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 manual > Group: Members Posts: 6,300 Joined: 26-August 03 From: WA Member No.: 9 |
ok i understand al of it except for the final drive, what is that?
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Mar 12 2004, 05:12 PM
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#11
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Living the dream Group: Moderators Posts: 8,859 Joined: 27-August 03 Member No.: 28 |
QUOTE(FaLLoN @ Mar 11 2004, 08:42 PM) ok i understand al of it except for the final drive, what is that? I think that's the last gear in the train. |
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Mar 12 2004, 05:46 PM
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#12
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 International Superstar Group: Moderators Posts: 7,121 Joined: 26-August 03 From: Connecticut, USA Member No.: 5 Car: 2002 BMW M3 |
QUOTE(Black RSX @ Mar 11 2004, 04:02 PM) My car has no torque!!! 142ft. lbs!!! and that, ladies and gentlemen is why i regularly smoke cocky RSX owners who think that theyre slightly smaller car with 200hp can take me. im rockin 227/220
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Mar 12 2004, 08:05 PM
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#13
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 Shift Noob Group: Members Posts: 91 Joined: 6-March 04 From: in the 98051 of WA Member No.: 632 |
hehe, ive got less!!
2.0 liter 135HP @ 6000 rpm 125 ft.-lbs. @ 4800 rpm |
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Mar 12 2004, 09:18 PM
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#14
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 See Ya Group: Banned Posts: 4,178 Joined: 26-August 03 From: Regina, Saskatchewan, Canada Member No.: 18 |
With my old engine, i had like 100/100 ... but then again, the car weighs 2200 pounds. It was still pretty zippy.
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Mar 12 2004, 11:33 PM
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#15
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manual > Group: Members Posts: 6,300 Joined: 26-August 03 From: WA Member No.: 9 |
QUOTE(fiber optic @ Mar 12 2004, 05:12 PM) I think that's the last gear in the train. so its the same as 6th gear??? (on justin's car) im confused and i have you beat as well para, im about 105/102 or so
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Mar 12 2004, 11:37 PM
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#16
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Talkin' the talk since 2003 Group: Admin Posts: 28,271 Joined: 27-August 03 From: Seattle, WA Member No.: 27 Car: 2004 VW GTI 1.8T |
No, the final gear ratio is simply the ratio that all the gears run through. So instead of having 1st gear be a 14.3389:1 ratio (which would neccesitate a really big gear) it is, instead, made up of a combination of the 3.267:1 and the 4.389:1, which require smaller gear diamaters.
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Mar 12 2004, 11:39 PM
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#17
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manual > Group: Members Posts: 6,300 Joined: 26-August 03 From: WA Member No.: 9 |
oooohh, weird
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Mar 13 2004, 08:20 AM
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#18
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HONDA - BOY Group: Banned Posts: 3,653 Joined: 27-August 03 From: Chicago Burbs, IL Member No.: 35 |
QUOTE(bankieWRX @ Mar 12 2004, 08:45 PM) QUOTE(Black RSX @ Mar 11 2004, 04:02 PM) My car has no torque!!! 142ft. lbs!!! and that, ladies and gentlemen is why i regularly smoke cocky RSX owners who think that theyre slightly smaller car with 200hp can take me. im rockin 227/220 Well, I have never loss to a WRX... but both of them were from a roll.. If it had been from a stop... I would have been playing catch up the whole time... AWD owns me from a launch... But I own WRXs on high end pull... (Unless they are modded) |
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Mar 13 2004, 01:32 PM
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#19
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Talkin' the talk since 2003 Group: Admin Posts: 28,271 Joined: 27-August 03 From: Seattle, WA Member No.: 27 Car: 2004 VW GTI 1.8T |
And bankieWRX tries to pull yet another fast one on us...you have 217 ft.-lbs. of torque, not 220.
GIVE ME BACK MY THREE FOOT POUNDS YOU STOLE! 
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Mar 13 2004, 03:06 PM
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#20
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 Race Driver Group: Members Posts: 4,531 Joined: 26-August 03 From: So Cal Member No.: 14 |
i thought you guys argued that before
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