gearing possibilties..? - Toyota Nation Forum : Toyota Car and Truck Forums

johndavid345 · 10-07-2006, 11:33 AM

Hi! i have a 4efte with a mr2 clutch stage 1 in my tercel, Everything was find until now, My third gear kick back in neutral 1 time every 5 shift..I'm pretty sure it's my syncroniser so i'll have to open my transmission again..What can i put while i'm there to gain power..obviously a mr2 clutch stage 2 or 3 but does somebody know if i can put gears from another car..maybe mr2 or corrolla gts..or if the whole mr2 transmission would fit? thanks in advance!

StealthSeo · 10-07-2006, 09:32 PM

you can buy gear boxes from the 4a-ge and they will fit your bellhousing to your e series engine

***Tercel GTS*** · 10-07-2006, 11:19 PM

Corolla or Celica gearboxes. You can use the MR2 internals but the case is different.

StealthSeo · 10-08-2006, 01:07 AM

what are the trans numbers on those?

Donald · 10-08-2006, 02:18 PM

From what I have been reading, the Corolla and Celica gearboxes have the same ratios as the Tercel/Paseo/Starlet, except some have a taller first gear.
Tercal gearbox - C50
Celica ST 1.8 gearbox - C52

Trans Model First Second Third Fourth Fifth
C50 3.545 1.904 1.310 0.969 0.815
C52 3.166 1.904 1.310 0.969 0.815

StealthSeo · 10-08-2006, 07:25 PM

is the paseo a c50 aswell and what about the 4e-fte trans

Donald · 10-09-2006, 04:40 PM

The 97-99 Tercel is a C151
The 97-99 Paseo is a C150

I might have been wrong about the Tercel being a C50 in that earlier post. I had copied the information off a web site and saved it to a microsoft word document. Some of the information didn't save. I tried the link that I had saved in my favorites and it doesn't work any more, so I am a little unsure. The information above I am sure of though, that was saved completely. Sorry I cannot find that web page, I have been searching.

From what I have saved I know that the C50 is the basic Corolla/Tercel transmission. the C150 and 151 are stronger versions, but how stronger my information doesn't say. Wheather it is gears or cases I don't know.
There is also the C52, 56, 59 The C160's (6spd) on some 4AGE 20V.

Donald · 10-09-2006, 05:31 PM

If all else fails go to the manual.

The '87-'94 Tercels have a C150 (5spd) or C140 (4spd) manual transaxle. (Haynes manual)

The '92 Paseo, I guess all Paseos have the C150. ('92 Paseo shop manual)

The big thing to remember though, is that the ratios are the same in the most of the Corolla and Celica gearboxes, except for some that have a taller first gear. The '94 - '97 Celice ST's and Corolla DX's with the 7A-FE engines (1.8) have the taller first gear. If other models have it too, I am not sure.

The final drive (differential) ratio of the Corolla I am not sure about, but the '92 Paseo is 3.941:1.

johndavid345 · 10-13-2006, 04:24 PM

Ok..Cuz my buddy told me that i should change my gear ratio cause i shouldn't be able to do 175km/h in 3rd gear..my 5th gear is almost useless when i race. so i'm looking for the final gear, the one the 5 gears are connected to.If there's a bigger gear i can put there that will affect my gear ratio and transfer all my power to my 5 gears.. thanks everybody..

***Tercel GTS*** · 10-13-2006, 05:46 PM

That's about right for a 4efte. I hit redline in third at 105mph. The final drive can be changed to a 4.30 gear from 3.72 as described here.

Quote:

Originally Posted by TurboTercel1992

Tranny did in fact have 4.31somethingerother and it is going to go right into my transmission.
SO I am going from a 3.72 up to 4.31somethingerother, so lets here it for out of the hole power.
So i wont be able to go 160 anymore....oh well...Ill survive somehow considering I only did it once and I doubt Ill ever do it again.....and I am sure i wont be at 8000 in 5th by the end of the 1/4 mile and that is all that really matters......

johndavid345 · 10-14-2006, 01:10 AM

Thanks so if i put a 4.31 gear instead of 3.72, I should have more torque = be faster from 0 to 100km but i will lose a bit in top end right..? That's what i'm looking for. I read that the final gear was bolt on? so can i use the syncroniser from the same car i will take the 4.31gear? And last, do you know where "tercelturbo1992" found that 4.31 somethi.. gear? there's so many people's saying different things i don't know which car i'm looking for..

i DON'T have LSD, i have stock axles and it's a 4e transmission..I just want to know what do i need with the 4.31 gear to be good to go! thanks guys!

***Tercel GTS*** · 10-14-2006, 01:38 PM

It says on TO that some 4age corollas had them(AE92).

Donald · 10-15-2006, 10:50 AM

Something to think about: To go from 3.72 to 4.31 is a 14% ratio change. That is quite a bit. From 3.72 to 3.941 is 6%. If you go to > http://www.miata.net/garage/tirecalc.html <
you might be able calculate out a tire size change that would suit your needs.

I use 195/45x14 tires for autocross, to get better accelleration and lower the center of gravity. That is a 8% increase in final drive ratio. Look at the comparison to the standard Tercel tire size below.

Tire Size Comparison
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
155/80-13 4.9in 11.4in 22.8in 71.5in 886 0.0%
195/45-14 3.5in 10.5in 20.9in 65.7in 965 -8.1%

It makes a very pronounced difference on the highway. Not a good one I might ad. The engine is screaming and traffic is passing you by.

If you are only using the car for competition then 14% might be good, but if you are using the car to commute, I would say get a second (smaller) set of tires or wheel/tire sets for competition.

Another plus that I hadn't thought of when I bought the smaller wheels is the weight saving of about 8 or 9 pounds each wheel/tire combo, compared to the 195/50x15's that I use on the street.

johndavid345 · 10-16-2006, 09:04 PM

Yeah i never thought about that but i guess i don't know what i want cause i want a stay with my 17" and work in my tranny..it's more trouble but i did my car for car show's and you probably know..bigger is better..

I just need to find in which kind of corrolla they have the 4.31 i'm lookng for..Thanks anyway for the tire advice!

johndavid345 · 01-15-2007, 01:39 PM

Alot of people told me to go with the mr2 internals.. so to take all the gears and stuff only, cause the housing is different.. so some people tried before and it works.. but how good this is.. can somebody tell me if that mod is useless, how come it's not more popular than that?

And am i goind to have trouble with my tranny because of this..