Can someone evaluate a remote tune for me?

[SiriusC1024]

I think what smoked the trans is the shift times and rpm. Inertia squares with rpm. The trans was absorbing all that to get rpm down after a shift. Have to give time for not only the trans itself to make the shift but for torque to truncate too. Then again, it has to be setup for torque to be truncated. Pretty much power shifting at 7 grand and wondering why the clutches can't take it.

On the other hand the driver should've noticed this early and realized he wasn't slipping the tires.

[edcmat-l1]

I see your point but like I said I've seen worse NOT smoke a trans like that.

NM.....

[edcmat-l1]

Both those "pulls" it looks like it's in TUTD and the driver never shifted. Don't know if that's just the PCM not commanding the shift or if the driver didn't hit the TU button.

Definitely the RPM and the lack of upshifting is part of what killed it. These things need the MPH and RPM shift points LOWERED to get them to shift on time. That engine is spinning too high for a stock bottom end. Surprised the trans is the only thing smoked.

Also, could be a low fluid issue. They're difficult to get full. Most people don't.

[JayRolla]

Both those "pulls" it looks like it's in TUTD and the driver never shifted. Don't know if that's just the PCM not commanding the shift or if the driver didn't hit the TU button.

Definitely the RPM and the lack of upshifting is part of what killed it. These things need the MPH and RPM shift points LOWERED to get them to shift on time. That engine is spinning too high for a stock bottom end. Surprised the trans is the only thing smoked.

Also, could be a low fluid issue. They're difficult to get full. Most people don't.

Im a manual guy so dont know for sure, dont people also recommend over filling 1 qt?

[edcmat-l1]

Im a manual guy so dont know for sure, dont people also recommend over filling 1 qt?

Yessir. I typically tell people check the fluid level according to spec at least twice. If you're unsure, check it again. When you're confident it's full, add 1 quart.

If it's a new build it needs to be checked, topped off, ran through all of the gears and lockup, and then checked again which requires a cool down.

[STAGEUP]

Yessir. I typically tell people check the fluid level according to spec at least twice. If you're unsure, check it again. When you're confident it's full, add 1 quart.

If it's a new build it needs to be checked, topped off, ran through all of the gears and lockup, and then checked again which requires a cool down.

Dont you just love it when you get a car that just got a new stall to tune? I'd have to say that 80% of the time, the trans is low on fluid.

Like you said, fill, check, fill again, check again, then maybe wait a day and check again! lol!

[edcmat-l1]

Dont you just love it when you get a car that just got a new stall to tune? I'd have to say that 80% of the time, the trans is low on fluid.

Like you said, fill, check, fill again, check again, then maybe wait a day and check again! lol!

Exactly. Just when you think it's full, wait 24 hrs. and check it again. You'll be surprised.

[JayRolla]

Dont you just love it when you get a car that just got a new stall to tune? I'd have to say that 80% of the time, the trans is low on fluid.

Like you said, fill, check, fill again, check again, then maybe wait a day and check again! lol!

Thats that automatic life. I wouldn't know. I like to be slow. HAHA. 25 years of performance 4 bangers and v8's and yet to own an auto.

[STAGEUP]

Thats that automatic life. I wouldn't know. I like to be slow. HAHA. 25 years of performance 4 bangers and v8's and yet to own an auto.

I'm with you!M6 life for me. See sig.

[edcmat-l1]

Banging gears is fun but I'm an auto guy. Primarily it's about drag racing for me. And I love a really well tuned auto going through the gears without hitting the limiter, just gettin werk dun!

[Alvin]

Dont you just love it when you get a car that just got a new stall to tune? I'd have to say that 80% of the time, the trans is low on fluid.

Like you said, fill, check, fill again, check again, then maybe wait a day and check again! lol!

Absolutely. I think they work out air pockets or something. A lot of transmissions will start to miss shifts just a half a quart down.

[radeon1337]

There are roughly 200 miles on it. Maybe 6 wide open throttle pulls.

[radeon1337]

Both those "pulls" it looks like it's in TUTD and the driver never shifted. Don't know if that's just the PCM not commanding the shift or if the driver didn't hit the TU button.

Definitely the RPM and the lack of upshifting is part of what killed it. These things need the MPH and RPM shift points LOWERED to get them to shift on time. That engine is spinning too high for a stock bottom end. Surprised the trans is the only thing smoked.

Also, could be a low fluid issue. They're difficult to get full. Most people don't.

I prefilled the torque converter.

Pumped as much fluid as I could into the fill port

Started the car and let it idle to temperature (88)

Ran it through R, D, N, R, P at 3 to 5 seconds each

Opened the full plug

Pumped roughly 12 quarts into it until it dribbled fluid

Pumped 2 more quarts into it

https://static.summitracing.com/glob...-8100a-jmb.pdf

[edcmat-l1]

Would have been nice to see some early data logs before it was already smoked.

I suggest on the next one you put pretty much everything back to stock on the trans side and see how it feels on a bone stock calibration.

Lower your rev limiter to something reasonable. Lower your WOT shift RPMs MUCH lower than your rev limiter. I'd start around 6500 on your rev limiter and 5000 on your shift RPM. See how it shifts on its own, not in TUTD.

[radeon1337]

Would have been nice to see some early data logs before it was already smoked.

I suggest on the next one you put pretty much everything back to stock on the trans side and see how it feels on a bone stock calibration.

Lower your rev limiter to something reasonable. Lower your WOT shift RPMs MUCH lower than your rev limiter. I'd start around 6500 on your rev limiter and 5000 on your shift RPM. See how it shifts on its own, not in TUTD.

https://drive.google.com/drive/folde...Mc?usp=sharing

uploaded a bunch here for your perusal

[edcmat-l1]

Yeah I'd say that's a bunch LOL

Can you elaborate on the time frame? I see they go from April to June. Is this from BOTH failed trans or just the built one? Just looking for some background on them before I spend a bunch of time looking through them.

Correct me if I'm wrong but you're on trans number 3? OE one breaks a shaft, that's one. You had it (2) built and smoked it. Builder goes back through it again (3), and you smoked it again?

[edcmat-l1]

Are any of those in the folder WOT logs? I looked through 3 or 4 and they were all part throttle easy driving logs. At quick glance they looked fine. Did not go into great detail as I was mostly looking for WOT pulls.

[radeon1337]

3rd.hplhit.hpl1234.hpl

1234 has a WOT at the end

3rd is a third gear pull that i shifted into 4th manually (if i remember correctly. it was about a month ago)

hit was a "wot hit" requested by the tuner. 3rd gear pull.

i've been doing pulls on a back road, but i'm limited by the roads i can do it on.

[hjtrbo]

shit, 1234.hpl shows why your trans got smoked. See the rpm rate of change lay over when the oncoming clutch was pre-filled. That's your 2 clutch packs turning into a thermal source to heat water into steam to drive a turbine. Attached is a solid 6L90 tune that you can use in your new trans.

[radeon1337]

I really appreciate it but I'm working with another remote tuner.