hi there guys i was wondering what cable tranny is better because i got 2 trannys and im doing a swap from auto to 5 speed i whould like to know what tranny is better for gas milage the zc or the si and also will the zc caseing hold si internals

 

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

figure it out yourself.

this is in the FAQs.

 

also can i use my dx drive shafts with the zc tranny also or will i need to find zc drive shafts

 

go with the si tranny its better

 

i know the si is better but i want to make my car amazing on gass cant find a hf tranny and my si needs to be re taped due to stage 3 clutch pounding lol

 

if you drive on the freeway alot dont get the zc tranny. I drive on the freeway almost everday and let me tell you going with the flow of traffic at like 75-80mph and your car is at almost4krpms its pretty damn annoying. and a killer on gas mileage

 

what about a si with a zc finel drive gear

 

also id like to know if the si tranny case is the same as the zc because my si case has all striped rear mount screws

 

bump

 

why would you put the zc final drive in. there almost the same thing. Im telling you though man. that zc final drive is a pain if you drive over 55 a lot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IP RACING &raquo;</TD></TR><TR><TD CLASS="quote">why would you put the zc final drive in. there almost the same thing. Im telling you though man. that zc final drive is a pain if you drive over 55 a lot.</TD></TR></TABLE>

So is the Si.

4k at 75-80.

 

well a zc finel drive is the same as a dx so if u put a zc finel drive in a si u get a dx tranny lol and if u put a si finel drive in a zc u get a crazy low end lol aka gas ****

 

I still get 38-40 on the highway.

 

I had both the Si and the ZC transmission. I can say that the 5 gear on the Si is longer than the one in the ZC but all the other gears are slightly shorter in the Si. Either way you'll have the same gas mileage

 

zc final drive I have a 4.43 final drive and gas kills me going 70mph at 5000rpms

 

what tranny u useing in the gear calculator the zc and dx finel drive are the same only the drive gears are diffrent thats y if u put a zc in a si u get a dx because the si and the dx have the same gears for the drive and the finels are diffrent

 

oke a did the shaft test by puting the trannys in first and to my suprize the new tranny i got is a si and the one my buddy got when he got his hatch was dx tranny the barings on the out put shaft seem to be the same size or is it posible that the zc is extreamly similer to the si in the shaft spin test what i did was i marked the input shaft at 12 oclock even the out put shaft at 12 oclock and spin the input shaft 10 timesthe way thay turned out was just like in the diagram i was wonderinf if eney one has the instructions on how to put a si out put in a dx tranny because i want to swap the si to a dx lol i know u guys are going to call me nut lol but it had ***** with the dx tranny y lose speed lol when u got low end lol also whats the turn ratio of a zc where dose a zc mark on the shaft spin test

 

also can a 91 finel drive work in a 89 tranny


Modified by mario_pic at 11:28 PM 2/5/2008