The Ultimate Transmission Thread... Brainstorm Ideas Here!

[kornyguy95pgt]

the g5m in the zx2 has a 2 spider diff. it sucks, in my opinion. the one from zxtuner.com, if I remember correctly, has the diff/spider and final gear from an escape, which also uses the g5m. now on the whole subject of this thread, what I am failing to follow is what makes taking the internals from a trans that comes on a car making 125hp, and putting them on one making 164 or in most of our cases more. when I had my zx2 I used to go through the forums for them, and way more than a few people were going through trannys like crazy. the only advantage seems to be the ability to change gear ratios. seems like it would make it less reliable. just my 2 cents worth...

and I still think someone should build a badboy tranny for our cars.

one question for anyone who knows. in looking through the jdm stores at klze's I have seen listed jdm trannys that go with them. one in particular with a lsd. is this a good upgrade for our cars, or is it just the lsd???????

[Fastest95PGT]

what I am failing to follow is what makes taking the internals from a trans that comes on a car making 125hp, and putting them on one making 164 or in most of our cases more. when I had my zx2 I used to go through the forums for them, and way more than a few people were going through trannys like crazy

You said that the diff was the common failure point on the ZX2 transmission. We need to use our stock diff when moving the ZX2 input/output shaft into our housing so we won't be using the ZX2 diff.

Primary reason for using ZX2 input/output shaft is to get newer synchros.. AFAIK synchros aren't overly expensive, but swapping them requires a transmission shop to press the gears off/on to change them which can be expensive.

[turbo_KL]

The 2.0 Probe has the F series transmission. It is different internally than the G series we are talking about in this thread.

i dont see why it would be any different....

arent they the same internally? im aware that they dont bolt up to each other...

[veltpak6]

The 2.0 Probe has the F series transmission. It is different internally than the G series we are talking about in this thread.

isnt that just for automatic?

I'm reading MTX75 and G25M-R, are these not different manufacturer codes. Like the G4A-EL and 4EAT are the same (automatic) transmission, just different manufacturer codes. hmmm... The Mazda part number seems to be a bit more descrit.

[UKZXTWO]

lol, that's more than my 2g's worth! Thanks for chiming in though.

No problem!!

[Flyguyeddy]

The 2.0 Probe has the F series transmission. It is different internally than the G series we are talking about in this thread.

well thats a bitch. can anyone confirm this?

thanks!

[Gro Harlem]

i have a 98 2.0L 626 transmission and it is definitely a G_series box. Every 2.0 FS powered car i've seen has a G-series trans too (new proteges). I don't see why the probe/mx6 wouldn't have one if the 626's do.

[Gro Harlem]

that link to that ZX2 performance transmission basically proves that the SPI escort (97-03) tranny is the same as the ZX2 one w/the Zetec. That transmission fits both cars according to its description.

[turbo_KL]

Someone please ask in the 2.0 forum about the their transmission.

About the MTX ang G series. MTX is a Ford specific tranny (Focus, Contour, Coguar). Completely different than the Mazda G series or any other Mazda tranny.

[UKZXTWO]

that link to that ZX2 performance transmission basically proves that the SPI escort (97-03) tranny is the same as the ZX2 one w/the Zetec. That transmission fits both cars according to its description.

Yep, thats it.

[Gro Harlem]

ford refers to any manual transmission for any of their cars as "MTX". I had a ford festiva and i still have the factory shop manual written by ford. They are so vauge in their descriptions of the trans, they just call it "ATX" or "MTX". Even though it is a mazda E5M-R transmission. Same for a ford escort GT manual....they had G5M-R's and G25M-R's in them but the manual just calls them the "MTX". THe base 1.9 fords (from 91-96) had the F-series mazda transmission (f5m-r up until 92 when it was cahnged to f25m-r....no difference between the 5 and 25 that i know of other than the code).

"MTX75" sounds like a 100% ford transmission code to me. But if your manual says "MTX" it doesn't necessarily mean it isn't a mazda transmission in disguise.

[veltpak6]

ford refers to any manual transmission for any of their cars as "MTX". I had a ford festiva and i still have the factory shop manual written by ford. They are so vauge in their descriptions of the trans, they just call it "ATX" or "MTX". Even though it is a mazda E5M-R transmission. Same for a ford escort GT manual....they had G5M-R's and G25M-R's in them but the manual just calls them the "MTX". THe base 1.9 fords (from 91-96) had the F-series mazda transmission (f5m-r up until 92 when it was cahnged to f25m-r....no difference between the 5 and 25 that i know of other than the code).

"MTX75" sounds like a 100% ford transmission code to me. But if your manual says "MTX" it doesn't necessarily mean it isn't a mazda transmission in disguise.

!

I have a feeling Ford isnt very involved in manufacturing manual transmissions, seeing as how in one era, F150's had M-series Mazda trannys (similar to the miata ) Who would have thought?

[Dubbed]

Now I understand I just thought because all the tranny's were refered to as MTX 75 tranny's that they were the same but I guess not. If we can find some different gear ratios for the escort tranny's then we can modify ours to be better.

[Dubbed]

Here's some info I got off the Team ZX2 forums where they use an Escape ring and pinion 4.59:1 final drive and the escape 5th gear and the escort 1-4th gears.

Here's what I got of the thread:

Changing the ring & pinion to the 4.59:1 while keeping stock ZX2 ratios changes the overall ratios of 1st through 4th down lower.

The ZX2`s 1st through 4th overall ratios are:
13.53
7.50
5.37
3.98

If I rememebr correctly, the ZXTuner`s 1st through 4th overall ratios are:
15.15
8.40
6.01
4.45

Right now, I`m running an escort sedan tranny(great gas mileage!) and its 1st through 4th overall ratios are:
12.7435
7.0455
4.7355
3.5035
Its 3rd gear ratio is almsot the same as the ZXTuner`s 4th gear ratio. Its odd beign able to do 105+ MPH in 3rd and not hit the rev limiter.

and do they take the ring and pinion out of the escape tranny also, because this is the only way that the acceleration would be able to be increased with keeping the zx2 gears.

Yes, it uses the complete escape diff and escape 4.59 ring & pinion.

and in being able to mix the gears on the shafts then you could also put the 4.59:1 ring gear into a zx2 tranny

Here's what I found for the gears and specs of the Escape Manual tranny which has the G5M MTX which the escort guys are using to get closer gears from the 4.59:1 final drive.

Transmission5-speedmanual overdrive4-speedautomatic overdriveFinal Drive Ratios Manual4.59:1Automatic3.78:1

Gear ratiosManualAutomaticI3.67:12.89:1II2.06:11.57:1III1.31: 11.00:1IV1.03:10.70:1V0.84:1-

Aparently the Escape Diff is a lot better and stronger and will fit into the ZX2 case or at least I think but i'm not sure but if we can get 4.59:1 final drive compared to our 4.31:1 and a taller 5th gear you could get closer gears leaving you with a little bit quicker car when it comes to road racing.

[Smuffy]

Miata tranny in an F150? I wouldn't have thought they'd be made to take that much torque on a daily basis. So much for "overbuilt" Trucks and SUV's.