dohc_Cx

ok..i've search through your data base and didn't find any answers to my questions..i was wonderin would it be worth to swap an ls 5th gear in my gsr tranny like i've heard..and this will help keep rpms lower..i'm like arouond 4500 at 75mph..this is killing the motor..and want it lower..helps me people..is it worth..will i lose any hp and torque..thanks


[Modified by rACEr_b_O_y_, 2:46 PM 5/27/2001]

raene

I don't know anything about whether or not that is possible, but I do know that swapping in a shorter gear will help your rpm's a lot... you have a 0.787 ratio, and the LS has a 0.714 ratio - as read from Tiiite B16A .

Anyway, you won't lose any HP / TQ in the lower rpms 'cause you've got the same effective gears there... but in the 5th gear of course you'll lose some. It'll be a bigger jump to the 5th gear than it is, say, from 2nd to 3rd. If you do a lot of highway driving I'd highly recommend it!

92Si

Swapping gears in a transmission is no easy task, the ones I see come apart hardly ever go back together correctly. This is an expensive job & will leave you wondering how long your tranny is going to behave like stock. If you are up to the task and feel that you have a competent mechanic, go for the gear swap. Otherwise, drive slow & rev high, at least you aren't going to burn gas like a 5.0 with 373's....

dohc_Cx

has anyone done this? and could you tell me how it is on the highway? how low does rpm drop? and thanks..might be considerin but money is a issue here..thanks


[Modified by rACEr_b_O_y_, 7:43 PM 5/27/2001]

B16CRX

Actually, 4500 is not that bad for a honda engine. They are built to rev high. As long as you are not driving around for extended periods of time on the VTEC lobes, you are not hurting the motor at all. You can simply unplug the VTEC solenoid when driving on the highway. Or use a Fields controler to adjust the switchover point when you are on the highway.

If you have your heart set on changing gears, just change 5th and the final drive. You can use the LS, or almost any tranny from a B series motor. Shouldn't hurt performance too much.


[Modified by B16CRX, 4:41 AM 5/28/2001]

B18C-EJ1

Are you kidding??? I run the LS tranny and at 3500rpm in 5th I'm doing 85MPH!

Yes, you can swap in a LS 5th, but you're not going to drop the RPM's that much. It also has to do with the final drive too.

92Si

Now that I think about it, that does seem a bit high. Have you calibrated your tach? Is it the stock tach? They tend to read a bit high...

DreamSpeed

are you sure your at 4500 at 75mph cause i thought that b16a has a shorter closer tranny then a b18c and with my b16a im at 4000 doing 80mph, and even at 4500 your vtec is not engaged so it's not that bad, but the cheapest way to save gas? drive slower....

dohc_Cx

yes, i have been using the highway alot lately and watched my rpms..at 80 i'm almost in vtec and that is very loud and annoying for a long period of time..and aj did you use the ls tranny or another b series tranny with the ls 5th..also is this hard to do? oh and 92si it is a stock tach..thanks


[Modified by rACEr_b_O_y_, 11:13 AM 5/28/2001]

dohc_Cx

ok one more question..does any body have this tranny setup in their car and could you tell me how is it on the highway? thanksss..just wanted to know this before deciding..

5gen-hybrid

i have a 95 gsr tranny on my b16a2 in my 94 civic and im running about 3,500 rp's ay about 65 mph.

abraunworth

Damn, that sucks. In my Si, I would be doing like 90 at about 4000

SPOCK

i have a b16a1 w/ 94 gs-r and its at 3,000 rpm at 65mph

dohc_Cx

i don't know why it's like that..let me look into some more, maybe i can find something out about mu tranny..thanks people..i'll let you know how it goes..