The Ultimate Transmission Thread... Brainstorm Ideas Here!

[paradox1993]

thinkin i'll just go and slam all the gears out of a focus in mine, just looking for some better mileage cause its got enough power to compensate for the taller gears

[paradox1993]

also what does anyone think about royal purple gear oil...i have a buddy that swears by it but i don't know

[yellow2point0]

also what does anyone think about royal purple gear oil...i have a buddy that swears by it but i don't know

I really hear mixed reviews. Can anyone confirm or deny this: Using basic 30 weight SAE motor oil with zero detergents inside a gearbox?

I went to the UK a few years back to this one dude who builds Hondas on boost for a living and races the heck out of them. Says that typical gear oil these days has many detergents in it that contributes to gears wearing out sooner than later.

Ideas anyone?

[paradox1993]

I really hear mixed reviews. Can anyone confirm or deny this: Using basic 30 weight SAE motor oil with zero detergents inside a gearbox?

I went to the UK a few years back to this one dude who builds Hondas on boost for a living and races the heck out of them. Says that typical gear oil these days has many detergents in it that contributes to gears wearing out sooner than later.

Ideas anyone?

honesty dude no clue

[mac1]

thinkin i'll just go and slam all the gears out of a focus in mine, just looking for some better mileage cause its got enough power to compensate for the taller gears

just cause it shares the same badge does not make it compatible. THe probe is a Escort and protege, not a true Ford like a focus.

[paradox1993]

yeah but mac on page one the first post says that the gears out of an escort, focus or countour are all compatible with our tranny or did someone correct him later and it actually won't

[twinturbo6]

So say your running well over 400 whp ( personal goal ) whats the best combo? also If you get PAR gears what should they be. I thought I would ask the experts, as I could be wrong.

[FelipeT]

Not sure if the following has been posted here but it's worth mentioning.
The FS's tranny could be swapped into the KL's bell housing, or you could just swap out 5th gear and have better gas millage on the highway plus higher top speed with the FS's (from a 93-97 626 2.0) 5th gear

This is what I did (full gearset swap) works great. Haven't had it in long enough to get a really good gauge on fuel economy increase yet, but so far it looks positive. In case you're curious, you can track my fuel economy here:

http://www.fuelly.com/driver/felipet/probe

[Greg 94 PGT]

This is what I did (full gearset swap) works great. Haven't had it in long enough to get a really good gauge on fuel economy increase yet, but so far it looks positive. In case you're curious, you can track my fuel economy here:

http://www.fuelly.com/driver/felipet/probe

Did you do the entire swap yourself? Use any specific write-up?

I've never done anything inside of a transmission, so just curious

[FelipeT]

Did you do the entire swap yourself? Use any specific write-up?

I've never done anything inside of a transmission, so just curious

That's not as simple an answer as it seems. I own a shop and I'm a certified master tech. I had one of my techs do most of it, but I had to go back in and make a few "corrections" after the fact. I've built other Mazda transmissions, so I guess I could write up a how-to. It's really not difficult if you are a detail oriented person. If you are the kind to take all of your parts and dump them into a box during disassembly, forget it!

[Greg 94 PGT]

That's not as simple an answer as it seems. I own a shop and I'm a certified master tech. I had one of my techs do most of it, but I had to go back in and make a few "corrections" after the fact. I've built other Mazda transmissions, so I guess I could write up a how-to. It's really not difficult if you are a detail oriented person. If you are the kind to take all of your parts and dump them into a box during disassembly, forget it!

No, I am detailed enough to keep track of everything. The part the concerns me is I have read things about checking preload and that kind of thing. I have no idea about specific measuring that way (well don't have the tools)

[Franky]

Back from the dead...

Do you have pics of what you've put in your tranny

I had to stop spending time on my car: I started a company that sells car and powersport parts: mostly turbos actually.

The car currently runs on the brand new and amazing AEM Infinity. Only KL operated by INFINITY in the world...

I'm going to start the G6 F40 transmission project again.

I had a CAD design of the stainless bearing cups for the probe. Unfortunately: I did destroy a 3rd gear at 340whp, even with the stainless bearing cup modification. Honestly: the probe tranny is way too weak, in my opinion. In my opinion again: the thickness of the gears can handle very little power.

I'd love to see what others did.

I also want a new intake manifold that will allow me to use a drive by wire throttle body.

Projects projects...
Me

[mac1]

I had a CAD design of the stainless bearing cups for the probe. Unfortunately: I did destroy a 3rd gear at 340whp, even with the stainless bearing cup modification. Honestly: the probe tranny is way too weak, in my opinion. In my opinion again: the thickness of the gears can handle very little power.

I'd love to see what others did.

you're doing it wrong then. I also made 340hp and then moved up to about 360hp on Escort gears and the 5th gear plate. I have yet to destroy ANY escort gears with drag radials! And i'm much lighter which is the key ingredient. Probe trannys are not weak......it's the owners that dont want strip a $1k car down that I consider weak

[Dan [Sac]]

Yes, they are weak.

If you have to
1) Never race from a stop, avoid hard launches
2) Baby shift it
3) Avoid slicks at all costs
4) Take 500+ lbs of weight off your car to reduce the jerk loading on its components

then it's weak.

I have to say that for n/a purposes and daily driving it's more than sufficient, but it isn't overbuilt, and Mazda did a fine job making it last for a street car. It's just not got the safety factor for doubling/tripling the torque capacity.

We should be happy we have options. Those who aren't can't always buy a Honda/Acura, which is perfectly understandable.

Or you can drop $8-12k on a race-box and another couple of grand on an adapter plate, multi-disc clutch and axles.

There are ALWAYS options, the only limits are your involvement and money.

[mac1]

Yes, they are weak.

If you have to
1) Never race from a stop, avoid hard launches
2) Baby shift it
3) Avoid slicks at all costs
4) Take 500+ lbs of weight off your car to reduce the jerk loading on its components

then it's weak.

dont take this the wrong way, though others will. YOu never ran anything other than stock un-opened trannys in your glory days. I dont expect to blow my tranny again out of the box and those attempts will be far and between anyways cause I find it pointless to go out and try to beat your times on my budget.

You are actually not the greatest example out there because you ran 500hp, stock tranny and slicks. WHo the heck else is going to do that, really? Now if I myself blow threw Escort 3rd and 4th gears when I reach that 400hp mark then and only then will I call them weak and save for PAR.