My setup on my 99 civic is gonna be a ls/vtec with a vortech supercharger. I need to decide before the night is over if whether or not i stick with the b16 tranny, or go with the ls tranny. How much taller is the gearing on the ls tranny vs the b16? Would there be any benifits to going with the ls tranny? Which would give me a better quarter mile time? How much lower rpm would the ls tranny be at a given rpm vs the b16?
Any feedback is appreciated.

 

I say ls tranny with b16 final drive.

 

how would this benifit me?

 

you should probably do a search here, there is a ton of topics on this subject already...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boostage &raquo;</TD></TR><TR><TD CLASS="quote">I say ls tranny with b16 final drive.</TD></TR></TABLE>
Actually why not just stick with the whole B16 tranny?

 

If i go with the ls gearing, i will stick with the b16 final drive ratio

 

b16a

 

if u want better 1/4 mile's go with the B16, its shorter than the ls

 

It looks like with a b16 tranny with a 7600 rpm redline and 23.456692913385826 tires, it will shift as follows
1st 37
2nd 57
3rd 83
4th 109
5th 142
and i can drive along at 80 at 4300 rpm

with the b16 final drive ratio and ls gears and a 7600 rpm redline and 23.456692913385826 tires, it will shift as follows
1st 37
2nd 63
3rd 95
4th 125
5th 169
and i can drive along at 80 at 3600 rpm

Ideally in the quarter i would want to be at the top of 4th gear....sticking with the b16 that will give me a max of 109 trap speed....what time should this work out to?


Modified by slammin86 at 8:22 PM 2/17/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slammin86 &raquo;</TD></TR><TR><TD CLASS="quote">
Ideally in the quarter i would want to be at the top of 4th gear....sticking with the b16 that will give me a max of 109 trap speed....what time should this work out to?
</TD></TR></TABLE>

low 13 high 12

if this is a street driven car and you'll have alot of torque (ls/vtec) go with an LS

weekend track warrior B16

nothing worse than cruising 4.5k rpm or higher if you're on the highway alot.

 

It is a street driver car, and is supercharged at 10 psi

 

I debated on this for many minutes. B16a tranny with LS 5th gear. I have an ITR tranny with LS 5th. 150mph cruise no problem. 126 trap speed on 15" street tires no problem.


And at absolute worse....go with a gsr tranny. If I had time when I did my R tranny, I would have done GSR 1st, 2nd and ITR 3, 4th and Ls 5th.

 

I decided to stick with the b16 tranny