Transmissions
Dead_Bunny
Wagonist
I was thinking we could make a list/sticky of transmission numbers and codes. ----> Transmission number, model of car, year
Dead_Bunny
Wagonist
Comments
WRONG. It even lists a couple that came LSD quite often. :?
(Integra ZXi and the L3 from DOHC ZC)
Why would they say something so silly? The Integras and Civics even had "L.S.D + A.L.B" written on the back window in the black part that normally said "16 Valve".
Ive found that with most lists in the Honda circles.
Great list though.
to add it to the listing, can someone post the gear ratio's of the wagon transmissions, also, the jdm zc trans?
further, transmissions are one of the things i'd luck to understand better, can anyone explain to me what the gear ratio's mean exactly and what is good for different types of driving...drag v. circuit v. autox v. general gas mileage
thanks
I second these questions haha, they are basicially what i was hoping to find out =]
Thanks for all the great info people! lets keep it comming.
I got about half of it done so in a couple more days I shoudl have it finished so that new information can be added or wrong information can be changed or deleted.
http://www.hondacivicwagon.com/board/vi ... ?p=453#453
Similarly, that transmission's "Final Drive" -- the gear that turns the shaft the wheels are connected to -- turns once for each 4.400 turns of whatever gear the transmission is in.
So, if you're in 1st gear, the engine has to turn 3.230 times to turn the gear once, which has to turn 4.400 times to turn the wheel once. All told, the engine has to turn 3.230 * 4.400 = 14.08 times to turn the wheel once.
Consider the tradeoff. With higher ratios (bigger numbers), the engine has to turn more quickly to turn the wheels at any given speed. Naturally, this means you can't go as fast (since you engine has a maximum speed), but you get more torque (the engine doesn't have to work so hard because it's not moving the wheels so far). Conversely, with lower ratios, you get more speed, but less torque.
And of course, torque generally corresponds directly with your acceleration.
So you adjust the gears based on what kind of driving you're doing and your engine's power. Cruising on the highway, you want a nice low gear ratio -- at least for 5th gear. That way the motor doesn't have to turn so much, so it's using less gas. For drag racing, you want high gear ratios, so you get lots of acceleration -- even though you have to shift more often.
Naturally, there are limits. You could get very high gear ratios and terrific acceleration, but still lose the drag race because you spent all your time shifting, or you couldn't get over 80. You could get very low gear ratios and great top speed, but still have terrible efficiency because your engine is lugging all the time as it tries to accelerate enough to shift into the next gear. You might not even be able to reach your top speed because your engine can't generate enough torque to accelerate!
Hardcore racers actually tune these things for each individual gear. They have to be careful not to set the gears too far apart, either: if you shift from third at 7000 RPM and wind up in 4th at 400 RPM, your motor can't really produce enough torque to accelerate.
In the end, you experiment. Honda chose these things pretty carefully through experimentation; their setups are good for their intended uses. Want great mileage? Use the tranny with the lower gear ratio, and expect lousy acceleration. (Better yet, change your driving habits.) Want more power and acceleration? A transmission with a higher gear ratio can provide that, but expect lower top speed and more frequent shifting. You might be better off modifying your engine to work with your existing tranny. Feeling adventurous? You can swap the final drive between some of these transmissions. Maybe you can put together something with close gear ratios and a low final drive, resulting in a setup that matches your modified, more powerful engine.
More detail than you wanted, probably. Bottom line: higher numbers == better acceleration, worse speed; lower numbers == worse acceleration, better speed.
Does make me wonder about that Y1 and if someone along the line had messed with it?
The information contained in this thread is good. However i won't be stickying every topic that has useful information. If someone thinks this information is useful they can submit it to the Drivetrain F.A.Q. Even then it won't be accepted to that F.A.Q until someone comes up with all the exact specifications for the Wagons (not just 4th gen).
the post is somewhere on honda-tech. i also said usable, not bolt up, it requires using different axels/half shaft/clutch/and i think nuckles too. when i find the article i'll post the link
http://www.honda-tech.com/showthread.php?t=2276278
i hope it helps