well i just picked up a beater 1990 teg auto. cruising @ 80mph the rpm is around 4400ish. seems a bit high. could something be wrong with the TC not locking or maybe a solenoid? my buddy had the same teg but he said his rpm was lower? any help is appreciated thanks!

 

That sounds about right to me, does the TC feel like it's slipping when you step on it? MFactory has a gear calculator on their site, it may help you.

 

no slipping. no codes or anything. RPMs just seems a bit high to me. i was just wondering if the TC or solenoid was messed up.

 

it depends on your transmission. what kind of transmission do you have?

I know for a fact that the LS tranny will run 3.5k RPM @ 80mph

 

quoted from username: Chris_S14 @ superhonda
this will hopefully explain why your car might be revving higher at the same speed as another car. It is all in the gearing

Some more useful info

B-Series Transmission Guide

By: Chet Hewitt

B-series Transmissions

In response to recent questions about different transmissions I think its important to shed some light into the ones available for our b-series motors. There are many differences between B-series transmissions and I've never found an article describing the positives and negatives of each unit. Below, you'll see transmission codes, the car it's found in, and whether or not it has factory LSD. It's important to realize that Honda didn't make it easy for us to distinguish between transmissions. For example, almost all transmissions found in Integra's are stamped S80. This includes the tall LS transmission and the ultra short JDM Type-R transmission. In some cases, the only way to determine which transmission you really have is to take it apart and count the number of teeth on the ring gear. Obviously, in most cases it's not practical to take your transmission apart to determine which one you have. To be safe when acquiring a transmission, you should identify the seller; try to identify the car and or motor it came with.

B16A (Cable), B16A2 (Hydro), B16A3(Hydro):
S4C, S80, Y80, Y21, Y1 (optional LSD)

As most of you know the B16A was featured in Japan between the years of 1989 through 2001. This engine has had several different transmissions mated to it causing some potential confusion.

First, it's important to realize that first generation B16A's came with cable transmissions. The Y1 came with optional factory LSD and should have LSD stamped on the transmission. Determining whether or not a transmission has LSD is very simple, just look into the differential and see if its opened or closed. For those not familiar with this, you'll either see a set of gears that form a closed cylinder, or you'll see an open differential with a bar splitting the middle.

Typically these transmissions have had weak synchro's in 2nd, 3rd, and 4th gears with 3rd gears crunching the most. Its also worth noting that all of the transmissions minus the Y1 have very weak open differentials making it essential that you upgrade if your putting a lot of power to the ground.

As far as gearing, these transmissions are all pretty short. Here is a listing of the gear ratios and final drive, courtesy of www.bseries.net.

1st: 3.230
2nd: 2.105
3rd: 1.458
4th: 1.107
5th: 0.848
Reverse: 3.000
Final Drive: 4.400

In conclusion, this transmission is good for all motor and should bring between 500-700 if its hydraulic while cable transmissions are worth between 400-600. Please be careful that the transmission you're buying doesn't have bad synchro's because a lot of them have been beaten on and this is the first problem you'll have. Plus, if you're making a lot of power, 170 to the wheels, be prepared to replace your differential because these can be broken with regularity.

B16B (Hydraulic):
S4C (LSD)

The transmission found in the Civic Type R is highly sought after and very rare. Its gear ratio's are identical to that of the B16A's but has a stronger limited slip and dual synchro's in 2nd, 3rd, and 4th gears. Expect to pay between 1000-1200 for a genuine CTR transmission because they're rare and well worth the price. Its also worth mentioning that these transmissions are Hydraulic type.

B17A1 (Cable):
YS1

This transmission is found on the rare "blacksheep" of b-series motors. The most important feature here is that its cable-type. This means you can bolt this into any 93 and older integra and 91 and older civic without having to change to hydraulic. The synchro's on this transmission are still considered weak, however the gearing is very good for all motor applications as its identical to the B16A transmissions. Finally, this transmission did not have factory LSD, so keep that in mind when someone is trying to tell you otherwise. Look to pay between 400-600 dollars for this transmission, although its going to be difficult to find and usually when you do, there is something wrong with it.

B18A1 (Cable):
YS1

Again, you'll see how Honda didn't help us out any with the stamping on this transmission. These transmissions however, are much different in there gearing. This transmission has a longer first and second gear with slightly longer 3rd and 4th gears. The final drive is still 4.40:1 making this a possibility for all motor applications, but not your best choice. You'll be able to find this transmission in 90-93 Integra's and they're all cable-type. The prices for these should range between 200-400 for clean, good working units. Paying anymore is pointless, as these transmissions are everywhere.

B18B1 (Hydro):
S80/Y80

This is probably the easiest b-series transmission to find because it's found in every non-VTEC 94-01 Integra. Most notably, this transmission is the longest of all b-series transmissions and has the weakest synchro's and weakest differential. The final drive is 4.266:1 and each of the gears is longer compared to its B16A counterparts. For boost, a lot of people like the gearing of this transmission, plus gas mileage is great and they're very cheap. Look to pay no more than 500 for a clean LS tranny because they're everywhere.

Here is a look at the Specs.

1st: 3.230
2nd: 1.90
3rd: 1.269
4th: 0.966
5th: 0.714
Reverse: 3.000
Final Drive: 4.266:1

B18C:
S80/Y80 (Optional LSD)

The transmission found in JDM GSR's is very popular and overall an excellent transmission. For all motor and boost applicatiosn this transmission has excellent gearing and a stronger differential compared to its B16A and B18B counterparts. The transmissions with LSD should have "LSD" stamped on the casing and to make sure, inspect the differential and use the parameters I described before to identify whether or not the transmission really has LSD. Look to pay between 700-1200 for this transmission depending on whether its LSD equipped. Also worth mentioning, these transmissions are all hydraulic.

Here is a look at the specs:

1st: 3.230
2nd: 1.900
3rd: 1.360
4th: 1.034
5th: 0.787
Reverse: 3.000
Final Drive: 4.400

B18C1:
Y80

This transmission is found in all USDM GSR's. Although LSD was not offered these transmissions are still highly sought after because of their stronger differentials and optimal gearing. For those not interested in ultra-short gearing this transmission provides the perfect balance between acceleration and top end. Look to pay around 700-1000 for these transmissions.

The specs are the same as above:

1st: 3.230
2nd: 1.900
3rd: 1.360
4th: 1.034
5th: 0.787
Reverse: 3.000
Final Drive: 4.400

B18C5:
S80 (Helical LSD)

This transmission is one of the best B-series transmissions Honda has offered in its vehicles. Every gear has dual synchro's and the gearing is perfect for all motor applications. Plus, LSD is standard and will be stamped on the housing. Look to spend between 1200-1400 for these transmissions because of their quality, LSD, age and gear ratio's. Finally, if there is some question about whether or not you're S80 has 4.4 final drive or 4.7 final drive you can check the transmission housing. The code "4jhd" means 4.4 final drive was offered as original equipment, while "n3e" signifies 4.78 final drive.

The specs are below:

1st: 3.230
2nd: 2.105
3rd: 1.458
4th: 1.107
5th: 0.848
Reverse: 3.000
Final Drive: 4.400

B18C (JDM Type R):
S80 (Helical LSD)

JDM Type R transmissions are the best for all motor applications where acceleration is emphasized most. All 98 and up JDM Type R transmissions came with 4.785 final drive with the same 1st, 2nd, 3rd gears as the USDM Type R. To make highway driving more tolerable, the 4th and 5th gears are the same as GSR transmissions. Look to spend between 1400-1600 for these transmissions because of their final drive and rarity.

Here is a look at the specs:

1st: 3.230
2nd: 2.105
3rd: 1.458
4th: 1.034
5th: 0.787
Reverse: 3.000
Final Drive: 4.785

Conclusion

In conclusion I hope this article allows for a better understanding of B-series transmissions. Depending on your application, budget and availability the transmission you chose will certainly affect overall performance. For more questions, feel free to email me at chet@hondaswap.com, or post in our forums.



Sources: Cory Thompson, www.bseries.net

 

im not going to take the time to read that entire post, but the rpm's you're saying that you're hitting at 80mph is about identical to having a b16 transmission

Find out what the code is on your transmission

 

ok ill definately check the code tomorrow. ya i used to have a b16 tranny in my EF that was running around the same rpm.

 

I have an s80, not sure which one. It was already swapped in when I got the car. I have been trying to figure it out. I know my speed for each gear at 3000 rpms is 1st 16mph 2nd 27 mph 3rd 40 mph 4th 53 mph 5th 71 mph. Also I know that at 80 mph in 5th gear I was at 3200 or 3300 rpms. my speedometer is right and I am running 205/40/r17's so it shouldn't make a difference there. I raised the car and had someone try to hold the right wheel while I put it in gear and let the clutch out. I was testing for lsd, he couldnt stop the wheel from turning. Still not sure. Did the burnout test, one tire in gravel with the other on pavement and both tires broke loose. Still.... who knows without pulling it. Anyone got any info that might help me figure out what tranny I got? I would appreciate it.

 

you guys all realize in his first post he says his car is an auto.

 

^nice catch.

 

did you realize that they make automatic b16 transmissions in japan, my friend had a complete b16 swap, automatic, his car is at 4.4-4.5 at 80 on the freeway

 

Compared to other cars, it seems high, but it sounds about right.

 

well people are throwing out 5 speed manual specs when his car is an auto 4 speed. and yes i know there are auto b16 trannys.

 

My mistake on the auto trans part, I was kinda in the same boat as him, except I do have a 5 speed manual. I am not sure which one I have or whats been done to it so I have been hittin up similar threads to try to find out. If any of you can help let me know please.

 

***** it sounds like you just have an ls transmission from those ratios, you can take out your driveshaft to see if its lsd or not
http://www.ff-squad.com/tech/lsd/lsd.check.jpg