jetpilot

I bought an S1 tranny and I would like to know if it has the short gearing or not. How can I tell from the outside??, its a small spline and has a gold sticker with the serial and S1 numbers.

thanks

rjay8604

wow i never knew there was a usdm s1. you could put it in first gear, say first is 3.2:1 and the final drive is 4.4:1, so 3.2 X 4.4 is 14.08, so turn the input shaft 14.08 times and see if the final drive turns exactly once. just being crazy.

jetpilot

well I have an excell ratio guide and it says that 90-93 usdm LS tegs have YS1/S1 trannys. How do I put it in first gear???

thanks

rjay8604

pretend you are the shift linkage, looking at the back, grab the shifting shaft, twist it counter-clockwise then pull back, it will be pretty damn hard, twist hard and pull hard. that way would be pretty damn hard, but it would work if you really wanted to. try using the serial numbers to get some info, ask gearspeed.

EL Vap133

Slap it on and find out. Was it on a motor before? Or did you get it seperate?

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jetpilot &raquo;</TD></TR><TR><TD CLASS="quote">I bought an S1 tranny and I would like to know if it has the short gearing or not. How can I tell from the outside??, its a small spline and has a gold sticker with the serial and S1 numbers.

thanks</TD></TR></TABLE>
There are no USDM S1s.

Only sure-fire ways to determine the gearing of an unknown transmission are to open the case and count teeth or install it on a car and compare indicated speed vs. revs.

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jetpilot &raquo;</TD></TR><TR><TD CLASS="quote">well I have an excell ratio guide and it says that 90-93 usdm LS tegs have YS1/S1 trannys. How do I put it in first gear???

thanks</TD></TR></TABLE>
All '92-93 USDM Integra models use a transmission marked YS1 - not S1.

If your transmission is marked S1, it is a JDM short-geared transmission.

EL Vap133

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
All '92-93 USDM Integra models use a transmission marked YS1 - not S1.

If your transmission is marked S1, it is a JDM short-geared transmission.</TD></TR></TABLE>

There was this guy that bought an JDM S1 tranny off of me, he said he was buying my tranny because he had a USDM S1 LS tranny.

91civicDXdude

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
There are no USDM S1s.
</TD></TR></TABLE>

horseshit...you sir, have no clue what the hell you're talking about.

the 90-91 integra LS has an S1 tranny. I've had 3 of them. I recently took one of them apart to swap soem parts out of it into a broken JDM S1 tranny, and yes, the USDM S1 has a 4.26 final (64 teeth on the ring gear/15 on the pinion = 4.26) and the JDM S1 has 4.40 final (66 teeth on the ring gear/15 on the pinion=4.40)

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">

horseshit...you sir, have no clue what the hell you're talking about.

the 90-91 integra LS has an S1 tranny. I've had 3 of them. I recently took one of them apart to swap soem parts out of it into a broken JDM S1 tranny, and yes, the USDM S1 has a 4.26 final (64 teeth on the ring gear/15 on the pinion = 4.26) and the JDM S1 has 4.40 final (66 teeth on the ring gear/15 on the pinion=4.40)</TD></TR></TABLE>
I was under the understanding that '90-91 USDM LS Integras used the A1, which had a 4.40:1 final drive.

bummster

i have a USDM S1 as well... it exists.

link
shameless plug for a b series tranny calculator i made.

Deetz

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
I was under the understanding that '90-91 USDM LS Integras used the A1, which had a 4.40:1 final drive.</TD></TR></TABLE>
The usdm 1990 and 91 had both S1 and A1 trannies.

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Deetz &raquo;</TD></TR><TR><TD CLASS="quote">
The usdm 1990 and 91 had both S1 and A1 trannies.</TD></TR></TABLE>
Which models came with the S1? It had to have come from a specific model, because if the USDM S1 had a 4.26:1 FD and the A1 had a 4.40:1 FD, they couldn't have come in the same car.

EL Vap133

The guy that bought my tranny had a 4 door teg, not too sure which model teg though.

dr_latino999

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
Which models came with the S1? It had to have come from a specific model, because if the USDM S1 had a 4.26:1 FD and the A1 had a 4.40:1 FD, they couldn't have come in the same car.</TD></TR></TABLE>

Interesting, I have never heard of this before. Any answers from the audience?

davens

I've been around long enough to tell you there is no steadfast rule to Honda tranny code usage.

I don't think any usdm cable tranny had a 4.26 FD.

I got an A1 out of a 1990 Integra LS

bummster

that's unfortunate news.

any way to identify which market though?


Modified by bummster at 1:07 PM 10/7/2004

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by davens &raquo;</TD></TR><TR><TD CLASS="quote">I've been around long enough to tell you there is no steadfast rule to Honda tranny code usage.</TD></TR></TABLE>
For cable B trannies, it seems that way.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">I don't think any usdm cable tranny had a 4.26 FD. </TD></TR></TABLE>
The '92-93 "non-GSR" YS1 did.

Steemo

http://www.hondaswap.com/forum...29829
maybe this will help.

kim_2_da_chee

Gold sticker is jdm.

White is not.

But I'm sure everyone knew that

AllMotoRex

I have an Usdm s1... and trust me there aint not short gears in that sucker.
they come form90-93 integras gs/rs/ls.
..

Mattamotor

Were are you guys getting these USDM Y1 from, in the service manual there are no listing for them. Only A1(all 90-91 integra) and YS1(all 92-93 integra) are the one i have ever seen out of the car in my junkyard. As far as know this tranny dont exist, so i have couple questions for you all.

did you take your donor tranny out your self?
If so are you sure that car wa original, it is common practice by garages to due tranny/engine swaps not for increased performance, but just to car running.?

As for the A1 its is probably the most underrated tranny in the honda line up. The gears are perfect for almost any engine.

davens

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">For cable B trannies, it seems that way.


The '92-93 "non-GSR" YS1 did.</TD></TR></TABLE>

I beg to differ...
http://www.hondaswap.com/forum...29829
http://www.allmotorhonda.com/t...s.htm
...both support my original statement.
I've also got an excel spreadsheet/calculator that says the same thing.

I hate to say it, but...
Honda Transmission specs: 2
Targa250R: 0

jetpilot

put it in 1st gear and had to spin the input shaft 14 times to get 1 full revolution at the diff. so JDM S1 it is!!!!!!!

Naaa, im lying it was the gold sticker that gave it away.

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kim_2_da_chee &raquo;</TD></TR><TR><TD CLASS="quote">Gold sticker is jdm.

White is not.</TD></TR></TABLE>
A1 transmissions are USDM-only and have a gold sticker. So that's a no-go.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by davens &raquo;</TD></TR><TR><TD CLASS="quote">

I beg to differ...
http://www.hondaswap.com/forum...29829
http://www.allmotorhonda.com/t...s.htm
...both support my original statement.
I've also got an excel spreadsheet/calculator that says the same thing.

I hate to say it, but...
Honda Transmission specs: 2
Targa250R: 0
</TD></TR></TABLE>
Too bad those aren't all taken from a factory service manual or by counting teeth, so they aren't definite Honda transmission specs. I've been seeing those pages for quite some time now (the latter one has been around for years and originated at B-series.net), and both of them have known errors so I take them all with a grain of salt. You'll notice that they have the S4C listed with a 4.40:1 FD and 0.848:1 5th gear, when it has been proven that the S4C from the EM1 has a 4.26:1 FD and an 0.875:1 5th.

Didn't mommy tell you not to believe everything you read on the internet?