i have a s1 tranny just wondring how to figure out which s1 it is with out opening it up??

s1/ys1 or s1/j1

 

I would try the tech area but if not u can try it out to see what gearing it has

very simple to know if it is USDM or JDM transmission

u will be at 65mph at 4000rpms or so

the other won't

pretty str8 forward

 

i would like to know before the engine goes in the car

 

is there a sticker still on it?

 

yes it says s1 but there are 2 s1 trannys s1/j1 s1/ys1?

 

well my 92 gsr says YS1 so i would say its a J1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by krazie1 &raquo;</TD></TR><TR><TD CLASS="quote">u will be at 65mph at 4000rpms or so </TD></TR></TABLE>

Word

 

Something i borrowed from another post.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JV &raquo;</TD></TR><TR><TD CLASS="quote">In some cases trying to ID a B-series tranny is not always possible from it's external markings. So how can you tell?

This is what i have found to be the easiest method of doing so.

First you have to start off by taking the outer casing off. Fortunetly we already have a how to on that subject thanks to Plan B: How to: Take Apart a Transmission

Now that you have it apart. You can either go a step further and remove all the internals to be able to count every gear, or just get a tooth count on the final drive gear, it's opposing gear located on the counter shaft, and the upper most gears on both the counter and main shafts to calculate the transmissions 5th and final drive gear ratios.



Once you have counted how many teeth are on each gear, you need to divide the number of teeth on the counter shaft, by the number of teeth on the main shaft to find the gear ratio. I'll give you an example using the transmission pictured. **

There are 25 teeth on the upper most counter shaft gear and 35 teeth on it's opposing gear located on the main shaft. If you divide 25 into 35, you come out with a .7142857 (.714) ratio, which is the 94+ LS transmission's 5th gear ratio.

Now using the same method, you can find the FD ratio by counting the teeth of the final drive gear, and then dividing that by the number of teeth of it's opposing gear located on the counter shaft, which would be 64 / 15 = 4.26666666 (4.266). The 94+ LS transmission's final drive ratio.

Here is a list of B series tranny gear ratios for reference purposes:

The information in this chart is for reference only, and may not be 100% accurate in all cases.

or you can use this:
http://www.bseries.net/html/specs/btrannyspecs.php

Well that's about all there is to it. Hope this is helpful to some of you...


Modified by JV at 8:07 PM 5/3/2004</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18cls1 &raquo;</TD></TR><TR><TD CLASS="quote">i have a s1 tranny just wondring how to figure out which s1 it is with out opening it up??

s1/ys1 or s1/j1</TD></TR></TABLE>

I don't think you can tell if it is the B16 s1 or the LS s1 without opening it up. Where you got it would be the best place to get an idea of which one it is (i.e. US Junkyard or Japanese importer).

Phil

 

S1 and J1 are the exact same tranny. Stop crying and put it in the freaking car.