So I have a '93 EX, with a 1.6L in it....I am not sure which sub-model motor being I forgot to look last night...but

Wanted to know if I am able to get a 6-speed tranny and bolt it right on to this motor...or if it will even fit in the motor for that matter....

I do mostly highway driving to/from work.....45miles each way, and 40 of those miles are at 70mph....so I thought I could get much better gas mileages...

Will this work at all...or is this just a pipe dream...

 

Pipe dream.

 

pipe dream.

 

but you can get a 2.0L that has a 6speed but will cost nearly 5k+.

 

Pipe dream, and even at that K-series transmissions are geared even lower anyway.

 

thanks guys, you summed it up very well...as you might be able to tell, mods and swaps like this are very very new to me...

Any other ideas on what I could do to get more MPG on the freeway. I am not looking at for speed at all. I get about 35mpg on average consistently. I was hoping that if I could drop the RPM's at 70MPH, I could get more out of the fuel tank...

I have done some reading, and it sounds like driving style is about the best you can do...I think my syno's are going out, so I might have the tranny out sooner than later, and I thought it would be a good time to do any changes then....

 

at 70 -80mph on my rsx type S im sittin at 3500@75 -4k @80 so i dought u will get better mileage

 

i drive an em1 civic si. at 70mph im sitting at 4000 rpms. i sooooo wish i had a 6 speed too. but i still get close to 30 mpg if not 30+. use cruise control hahaha.

 

If your not concerned too much about your power you could get a vx transmission which is off of a d15z1. The vx hatch gets up to 50 mpg.

 

A D16Z6 Si/EX engine mate to a CX/VX will get about 40-45 MPG. At least that's what I got in the past in the hatchback model.

 

"If your not concerned too much about your power you could get a vx transmission which is off of a d15z1. The vx hatch gets up to 50 mpg. "

Will the vx tranny directly bolt to what I have already.....will I need to do anything with the axles?

 

yes will bolt up, same axles

 

This is the perfect information....any draw backs on doing this, ware/tear on the motor, etc.......like I said, I am not looking at all for power, just want to be able to cruise at 75mph and get the most mpg that I can.

 

nope

 

Man....I thanks for this information...I think I am going to start cruising craigs list for this tranny...

 

that transmission is identical to yours the only thing that changes is the gearing within the trans so you can use the same axles and you will be fine!

 

92-00 civic trans all fit you can also look for the civic (HX) trans which also has longer gears which would bring your rpms down. CX/VX/HX trans are all the same gearing.

 

CX/VX will bolt up and work fine, but it's geared super long. DX/LX is in between and will lower your cruising RPM in 5th a fair bit

 

I would get the DX transmission. My wife's hatch is geared pretty long. I couldn't imagine trying to drive something geared longer than that.

 

I was hoping you could help school me on what I am looking for...

When you guys say a d15z1 motor, I kind of know what you are taking about...but when you say a VX or CX transmission, is that something that would come on a certain motor??? I know the transmissions have a stamp on them also, but I don't seem to find anything labeled CX or VX when looking at junk yards and rebuild centers.

As an example: (this is from a local junk yard)

Year:1995
Make:Honda
Model:CIVIC
Part Description:Transmission/Transaxle Assembly: 1.5,5MT,5MT,FWD
Stock #: PAA216
Miles:Unknown
Location: Portland
Price:$300.00

How do I know if this is a VX or CX tranny?? I did a search for CX/VX tranny, but I don't see that in the description anywhere. You guys are already said that any 92-00 trany will work, but how am I to tell the difference between the different tranys????

 

cx/vx/hx refers to the trim level of the vehicle, for example you have a 93 civic ex. so you would be looking for a tranny from a 92-00 civic cx/vx/hx

 

OK, I understand what you are saying about the trim package...but what happens if I find a tranny from a junk yard, or someone that rebuilds them and sells only the tranny by itself...is there a way of telling where it came from ....what civic trim package it was orginally in??

 

Not true.. The HX has a final drive of 3.772 while the CX/VX 92-95 have a final drive of 3.25. The '96-'00 CX/HX however do share the same final drive of 3.772.. Weird thing is the EPA never tested the fuel economy of the 96-00 Civic CX hatchback despite the taller gearing compared to the DX/LX civics of 92-00 which have a final drive of 4.058.

 

'96 - '00 CX transmissions are geared the same as '96 - '00 DX/LX transmissions. HXs are weird, they're geared long but they use a Big bearing (B000/EX) case.

 

I didn't know that about the HX transmission, but then again, I mispoke and according to the service manual for 96-00 civics, it specifically says D16Y7 HATCHBACKS have a 3.722 final drive while the rest have a 4.058. I guess that would mean a DX/CX hatch has a 3.722 final drive.. hmm.