another dumb question just because I need to make sure befiore i sell my transmission. the 5 speed lx transmission will replace a a speed dx one without using different mounts (using the original dx mounts). also are the first 4 gears of the lx transmission the same as the 4 of the dx 4 speed, but with a 5 gear added for overdrive for gas mileage? or are the 4 speeds faster?

 

I believe only time gearing is changed in 4th gens was for the SI. And the mounts should be the same. Just make sure the flywheel is the same. I believe there was a difference on them size wise

 

so the 4 speeds didnt have tighter gearing? anybody? and anybody no if the flywheel is the same?

 

flywheel goes by year. not if its 4 or 5 speed. 88's had smaller flywheels then the other years

 

what about gear ratios

 

http://crx.honda-perf.org/math/index.html

another
http://crxcommunity.com/viewtopic.php?t=246


here's one thing. there is a site that gives out all the gear ratios don't remember it. and you should look it up. the info is out there. don't be lazy.

 

the 4 speeds had diff gear ratios than the 5 speeds. the 4 speed has taller gears. dx, lx and si trannies all will be much faster than your 4 speed

 

so which gets better gas mileage lx 5 speed or dx 4 speed

 

made for cali HF 5 speed. really long gearings.

 

so wouldnt that make the lx 5 speeds slower?

 

by slower you mean longer?

lx,dx, si, and ex 5speeds have the same gear ratio. the si/ex have a shorter final drive.

im not completely sure if the hf has the same gearing (non cali models) but for sure there final drive is even longer then a lx, and dx.

for the 4speed, i don't remember correctly, but i think it has the same final drive as the dx, and lx. of course the gearing is different.

 

I dont have to use a 5 speed ecu to run the 5 speed in a 4 speed dx shell do I? will 4 speed dx ecu run it

 

ok i need to clear you up here. Now beware, i am not comparing the actual gear ratios vs final gear size. I am simply clearing up what you as a driver will feel or experience by changing stock trannys

the 4 speed is not a dx, its an std model

dx trannys have 5 forward gears

hf has the tallest "longest" gears making it the slowest
dx/lx has shorter gearing but still gets good mileage with faster acceleration
ex/si has the "shortest" gears which gives you the fastest acceleration
if you want the best acceleration buy an si or ex trans
if you want the best gas mileage then buy an hf trans
still somewhere in between? then buy a dx or lx...prob wont feel much difference if any between the 2

if you really want gas mileage and youre on a budget, keep the 4 speed but accept the fact that your acceleration will suck.

I live 50 miles from you and own a 4 speed civic and a dx 5 speed crx. the civic sucks to drive up and down the hills in the area, the dx tranny is much better and gets the same gas mileage

that tranny is not controlled by your ecu. run the correct ecu for your engine

 

EX/Si don't have a shorter gearing, it's the same as a DX/LX. The FINAL drive is different.


http://forums.hondashowoff.com/showthread.php?t=8831

 

You know what he means by short geared tho.

 

read the warning i posted in my reply, i specifically said im not comparing the actual gear ratios...i didnt want to get too technical bc he obviously isnt quite understanding what we are talking about what we say tall or long vs short

 

I know what you mean tho. and the transmission is in a 91 dx its a 4 speed so how isnt the dx a four speed. I believe on the sedans were dx 5 speeds

 

hatchbacks had the option of being an std model with 4 speed. its not a dx tranny. stds do not have center consoles, pass side mirrors, no tach and a black center tail light garnish. they have d15b1 motors with dpfi. check it out or post some pics up

Unless yours was a dx and someone swapped the tranny, you are mistaken

 

Oh I always thought when people talked about std models it meant dx that explains everything thanks for the info

 

nope dx means dx and std means not dx

 

std = base model

 

was it only hatchbacks that came in std? what about wagons and sedans?

 

only hatches were stds