high power handling tranny

[Gomez]

I need a tranny that can handle lots of power. Now, before you all laugh, I know we all want the same thing. I looked into the e153 swap this evening (ALL 31 PAGES) on CP.com won't fit. Short of the unthinkable. I want to keep my car intact.

Is there ANYTHING else remotely close that will fit even if lots of modding is necessary? Something that you have thought about but never had the gumption to try? Something that you may have seen somewhere but never gave it another thought.

G-series just won't cut it. 5th gear plate mod, diff, and looking into straight cut gears but just not quite there I don't think. Can we pool together here and try and come up with anything. I know we are many many years into the FEstiva thing and everything has been tried. But I simply refuse to believe that there isn't anything that can be done.

I'll even get custom axles and adapter plate made if that's what it'll take. Whatever it takes. I like ideas.

Honda, Chevy, Toyota, Kia, Dodge, whatever. If it will fit in between the rails with a b series, it must be entertained.

What about cutting a tranny down. A g series would be smaller if you could eliminate 5th gear right. Is there a larger tranny that we could do something similar to and maybe then widen 2nd 3rd and 4th gears to compensate. No biggie if we have the power to run it right????

[Hot_Wheels]

I always though about building a automatic trans from a protege or egt. Automatics can take lots of beatings and your always in boost! Just need to beef it up some what.

[nitrofarm]

What about an H series,and arch the frame rails?

[kumalaba]

not sure where i heard it from but there is a toyota tranny that will work. i thing it was festevil3 that had the info,

[Gomez]

Auto would be sweet. but if there is one sound that I absolutely hate is an pumped up 4 banger shifting on its own. lol

e153 is a Toyota tranny.

What is the h series out of?

[shorestiva]

not sure where i heard it from but there is a toyota tranny that will work. i thing it was festevil3 that had the info,

Toyota=e153

Look into the gm f40 its been swapped onto a klze in a probe IIRC. I just kinda glanced at the swap how to and don't remember if they listed dimensions for it.

H series is f2t in mx6/probe. It's stronger than g series but not by much.

[Aaronbrook37]

How much power are we talking exactly? I definitely appreciate the value coming from peace of mind, especially as an E-series driver with upwards of 150 ponies.

[shorestiva]

250+ on g series

[Rocketman]

Look into the gm f40 its been swapped onto a klze in a probe IIRC. I just kinda glanced at the swap how to and don't remember if they listed dimensions for it.

Extremething's F40 conversion was a 1-off, has been fitted to the engine but never dropped in the car & has not been run/proven to work yet

I mean it's kind of a tradeoff, compromises have to be made. You can't have a stronger trans & not expect it to be bigger. The G-Series makes very efficient use of space, packing gears into it, and that's the problem, they're small, thin gears.

FastivaB6TG25MR made a whole lot of power (BP/Gseries) and had frame issues before he had tranny issues. So maybe tackling both issues to fit a larger trans isn't a bad idea? Idk

[shorestiva]

Extremething's F40 conversion was a 1-off, has been fitted to the engine but never dropped in the car & has not been run/proven to work yet

I mean it's kind of a tradeoff, compromises have to be made. You can't have a stronger trans & not expect it to be bigger. The G-Series makes very efficient use of space, packing gears into it, and that's the problem, they're small, thin gears.

FastivaB6TG25MR made a whole lot of power (BP/Gseries) and had frame issues before he had tranny issues. So maybe tackling both issues to fit a larger trans isn't a bad idea? Idk

Ah ic as I said I just glanced over the info.

I know that we'll probably end up having to go with something bigger but it's nice to hope that there's something that will fit without cutting up the frame rails.

Didn't he go through 5+ transmissions? I thought he kept breaking them.

[Hot_Wheels]

I think after he put the mfactory diff in he stopped blowing them up and started breaking axles. The weakest point of a g series is the csse. Ask ferdi. I always wondered about have a custome case made? Maybe rocketman can make a mold?

[nitrofarm]

Auto would be sweet. but if there is one sound that I absolutely hate is an pumped up 4 banger shifting on its own. lol

e153 is a Toyota tranny.

What is the h series out of?

http://milwaukee.craigslist.org/cto/4321349441.html Stock 2.2 Turbo put out 190 ft lb of torque. Its def a step up from the G series. You can get the Mfactory LSD for it,not sure if it bolts up to the the B series now that I think about it.(Are the B series & F series different Bell housing patterns IDK) But I've seen in person a 323 with a FE2 & an H series in it. He had to arch the frame rails,its a bigger tranny for sure. Didnt look that hard at all,but when all is said and done. If you take care of the G series and not run slicks it should last pretty long. Doing the Toyota tranny is going to be more work.The adapter plate is going to be crucial,I believe there is a member on CP that sells them for a couple hundred- I guess it all come down to what you plan on doing with your car,how serious you are about et's. And how deep your pockets are. Money talks & makes cars go faster :thumbs_up:

[Rocketman]

I think after he put the mfactory diff in he stopped blowing them up and started breaking axles. The weakest point of a g series is the csse. Ask ferdi. I always wondered about have a custome case made? Maybe rocketman can make a mold?

When you're talking 'real' power, the entire G-series is made up of weak points. Fixing one moves on to the next. The case is thin yes, but so are the gears, and the input/output shafts, and these flex under heavy load as well.

I would like to cast some custom cases, such as a engine-side case of an MTX75. (why go through all the trouble when the G is not ever the answer?) Then I can cast whatever bellhousing I'd like onto it, so adapter plates become a non issue and you'd have a "bolt-on" larger transmission (re-use the other half of the trans case). This could be done for most any transmission, I feel the '75 as a good candidate though. The tooling, casting, and finish machining are cost prohibitive so I've not started down this road. Something that size I'd definitely need to outsource some of the work on.

http://milwaukee.craigslist.org/cto/4321349441.html Stock 2.2 Turbo put out 190 ft lb of torque. Its def a step up from the G series. You can get the Mfactory LSD for it,not sure if it bolts up to the the B series now that I think about it.(Are the B series & F series different Bell housing patterns IDK) But I've seen in person a 323 with a FE2 & an H series in it. He had to arch the frame rails,its a bigger tranny for sure. Didnt look that hard at all,but when all is said and done. If you take care of the G series and not run slicks it should last pretty long. Doing the Toyota tranny is going to be more work.The adapter plate is going to be crucial,I believe there is a member on CP that sells them for a couple hundred- I guess it all come down to what you plan on doing with your car,how serious you are about et's. And how deep your pockets are. Money talks & makes cars go faster :thumbs_up:

H-series is a bigger trans and will only bolt to the F engines. They're stronger than the G but still not bulletproof

[Gomez]

I would like to cast some custom cases, such as a engine-side case of an MTX75. (why go through all the trouble when the G is not ever the answer?) Then I can cast whatever bellhousing I'd like onto it, so adapter plates become a non issue and you'd have a "bolt-on" larger transmission (re-use the other half of the trans case). This could be done for most any transmission, I feel the '75 as a good candidate though. The tooling, casting, and finish machining are cost prohibitive so I've not started down this road. Something that size I'd definitely need to outsource some of the work on.

is there a way we can talk about this? In private? Even here for that matter. I don't care. I would at least like to get something started. We are all in need and I'd like one too.

[Rocketman]

Sure. Here's what would be involved:

-Pick a transaxle to adapt.
-Generate 3D model/blueprint of the inside. Things like bearing cups, bolt & dowel holes, & other features need to be digitized.
-Make a 3D model of the casing with the appropriate B-series bell housing. Reinforce areas of concern.
-Generate a mockup & test fitment, check for issues. (CNC cut, 3d printed, etc...) Revise as necessary. Repeat if revisions are made.
-Create tooling for casting. Tooling will be oversize to account for metal shrink (can't just take an existing housing & make a mold from it, for those wondering), and machined areas will have allowances added. Positive mold + several large coreboxes will be needed to cast an object of this shape. CNC/3D printing would be utilized to create the tooling, based off the model.
-Locate a foundry with suitable molding capabilities (this would likely be done in a no-bake chemically bonded sand, based on the project size & need for accuracy)
-Have a prototype casting made. Check for rough dimensions
-Locate a machine shop with machine or machines capable of working to the tolerances necessary. Using the model again to generate the necessary machining operations. Shop may need to create fixtures for work holding. Machined piece should be checked on a machine for proper dimensions post-machining & compared to model
-Assemble transmission & check for proper fitment
-Have custom axle shafts made to fit transmission. Fabricate mounts. Fabricate/adapt shift mechanism as needed
-Road test to prove viability of project
-Proceed with production once prototype checks out

I've put a feeler out to some of my contacts to see about getting the case mapped out, I'll see what they say & we can work from there. I've no idea what the project as a whole will cost, I couldn't even put a finger on an estimate at the moment.