Mindy's Reincarnation

[highboostingm3]

Torque happened. LoL. And I love torque. All of it. All the time.

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I wish there was a light that illuminates when something is about to break.

That way, you could look at your passenger and say "wanna see something cool".

The only disappointment I have is this happened on just the spring - come on, at least give me the chance to use the controller. Was able to still drive it home (was right down the street) in higher gears with the trans trying to spit metal chunks out. Hahahahaha.

You mean you didn't have it turned up to full boost? Ah come on you are always on e85, just keep it at 32psi or so.

[Captain]

So now what? Gonna beef up an oem tranny orrrrr?

[mcoupemindy]

Damn, not good to hear.

Shit happens! In the scheme of things, replacing a transmission is a small thing.

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I'm surprised it lasted so long at that torque level.

You and me too. Haven't been 'easy' on it either.

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You mean you didn't have it turned up to full boost? Ah come on you are always on e85, just keep it at 32psi or so.

You're crazy. HAHA. Yeah, I've just been on the spring since putting it in.

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So now what? Gonna beef up an oem tranny orrrrr?

For now, I'm just going to throw in another stock transmission. Ryan is holding his for me. Just got to figure out when I can drive the 7 hour round trip to get it, or figure out how to ship it up.

Now as far as the long haul, I'm going to start exploring my transmission options.

The good news this happened at a great time - it's getting too cold to drive the car safely now. I'm going to take the cold months to pull the trans, driveshaft, differential, axles, etc. and inspect/clean.

[futureroadracer]

I can meet ya somewhere too. Maybe sometime this long weekend.

[E36 HateR]

I wouldnt beef up a trans, I would be shooting for a t56.

[MikeE36]

Do you plan to inspect the transmission and pull it apart to find what broke? I would be curious to see what failed inside yours.

Mike

[mcoupemindy]

I wouldnt beef up a trans, I would be shooting for a t56.

I'll stick with BMW transmissions until I really start breaking them. Mind you that even Mike R is still running a BMW transmission. The obvious solution is to turn down the power. But that's no fun.

[chikinhed]

A stock t56 is only rated for 450 ft lbs. they will handle 600 for a little while. The zf is cheap and easy.

Sent from my GTX3582R

[mcoupemindy]

Do you plan to inspect the transmission and pull it apart to find what broke? I would be curious to see what failed inside yours.

Mike

If I can figure out how to get it cracked open without the use of a sledge hammer, I will report.

Based on the sound of metal chunks in the transmission, I likely sheared the teeth off third. That's the only thing that makes sense to me why the rest of the gears will work.

My guess, that good old weak third gave up the ghost.

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A stock t56 is only rated for 450 ft lbs. they will handle 600 for a little while. The zf is cheap and easy.

Sent from my GTX3582R

That solves that one. Although I'd assume they would be much easier to upgrade?

[Captain]

Mike is using an s54 trans I believe, why not one of those? Or is that what you are already using?

[MikeE36]

If I can figure out how to get it cracked open without the use of a sledge hammer, I will report.

Based on the sound of metal chunks in the transmission, I likely sheared the teeth off third. That's the only thing that makes sense to me why the rest of the gears will work.

My guess, that good old weak third gave up the ghost.

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That solves that one. Although I'd assume they would be much easier to upgrade?

IIRC third gear doesn't have a bearing support plate in these transmissions, and with all the torque you're making, you likely tweaked something more than it wanted to be tweaked

I still want to try cyro treating, but throwing in another used one is so much simpler.

Mike

[highboostingm3]

IIRC third gear doesn't have a bearing support plate in these transmissions, and with all the torque you're making, you likely tweaked something more than it wanted to be tweaked

I still want to try cyro treating, but throwing in another used one is so much simpler.

Mike

CRYO would be good for testing purposes and I can't think of a better car & driver for said testing.

[rf900rkw]

If I can figure out how to get it cracked open without the use of a sledge hammer, I will report.

Based on the sound of metal chunks in the transmission, I likely sheared the teeth off third. That's the only thing that makes sense to me why the rest of the gears will work.

My guess, that good old weak third gave up the ghost.

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That solves that one. Although I'd assume they would be much easier to upgrade?

Somewhere on my list of projects is getting ahold of a blown ZF to disect and see if I can make assembly jigs. If you don't make trophys from this one, maybe I can pick it up some time for some experimentin'.

On the T56, some factory versions had a 550ft/lb rating, and there are some go-fast goodies made for them. But you would probably like the TR-6060 more. 600 ft/lb and better internal shift mechanisms for smoother feel.

[chikinhed]

The T56 is upgradeable but the basic ones cost ~$1000 and the upgraded Magnum is ~$4000. I'm not an expert on the T56, I've just been listening to a buddy with a twin turbo LSx engine in his '71 Camero whine about the weak T56 transmissons and how it is going to cost big bucks to make one reliable.

Sent from my GTX3582R

[charger758]

http://www.ddperformance.com/chevy_magnum.html

700ftlb capacity, $3000.

[E36 HateR]

http://www.ddperformance.com/chevy_magnum.html

700ftlb capacity, $3000.

Well that is awesome, I would absolutely love that in my car.

[highboostingm3]

http://www.ddperformance.com/chevy_magnum.html

700ftlb capacity, $3000.

700ft does not work for this car.

Does it fit within the stock trans tunnel?

That question came up at MIR and I hadn't looked into it personally so I did not realize the TH400 is so massive compared to a Powerglide which only needs minor adjustments in the e30 and e36 trans tunnel. Therefore, it is a proper question for the T56 as well. If it is too large for the trans tunnel, then it is worthless for a street car.

[E36 HateR]

Someguy2800 said it fit in the e30 trans tunnel.

My main reason for wanting a t56 is that many many f body guys go up to 600+wtq on stock trans, just because its rated at 450tq doesn't mean thats the limit, think about it, the zf was designed for a 240hp motor.

[rf900rkw]

There are several Z3s that have been converted to LSx in the forums. To quote the builder of one such, PbFut, "Not sure if the torque converter bellhousing will fit in the coupe's tunnel area. The manuals fit very well."

[highboostingm3]

Someguy2800 said it fit in the e30 trans tunnel.

My main reason for wanting a t56 is that many many f body guys go up to 600+wtq on stock trans, just because its rated at 450tq doesn't mean thats the limit, think about it, the zf was designed for a 240hp motor.

Thank you for that. Yes that can typically be the case, yet a roll of the dice. We won't know until someone like Jonathan want to be a guinea pig and blast 700+wtq in one to see if it handles it.

There are several Z3s that have been converted to LSx in the forums. To quote the builder of one such, PbFut, "Not sure if the torque converter bellhousing will fit in the coupe's tunnel area. The manuals fit very well."

Thank you for that information.

[BMWManiac]

I'm really thinking about keeping my SPA and seeing what a T3 6466 can do with some E85.....new turbo, new tune, everything else stays the same (maybe upgrade the fuel system)....

[highboostingm3]

I'm really thinking about keeping my SPA and seeing what a T3 6466 can do with some E85.....new turbo, new tune, everything else stays the same (maybe upgrade the fuel system)....

Smart man!

Didn't even know they had a t3 6466. WIN!

[BMWManiac]

http://realstreetperformance.com/sto...rger-3159.html

Almost $2k for the turbo....then the fuel system and tuning....probably safe to budget $5k

[M5Hunter]

Honestly, a healthy, stock t-56 is way under rated at 450 lb/ft. How you drive becomes a factor in its reliability. Also, a turbo 6 cylinder may be easier on it then a Whipple s/c'd 6.0 engine with 500+ lb/ft at 2000 rpm. Power/torque delivery can greatly sway a transmissions ability to not come "untogether"

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all that being said, i think a BMW transmission deserves another chance.

[bawareca]

the zf was designed for a 240hp motor.

And your engine was designed for 170 hp,but appears to be holding very well triple+ this power

Honestly, a healthy, stock t-56 is way under rated at 450 lb/ft. How you drive becomes a factor in its reliability. Also, a turbo 6 cylinder may be easier on it then a Whipple s/c'd 6.0 engine with 500+ lb/ft at 2000 rpm. Power/torque delivery can greatly sway a transmissions ability to not come "untogether"

5 cylinder with big turbo may have much more "explosive" power delivery than a supercharged V8.More linear nature of the S/C-ed engine may be more gently to the tranny.