gearhead tunes...

85_305 · Dec 21, 2012

You drive around with the tc locked all the time?

I know good tunes, ie beans, will tune the tc to lock for max power. But I THINK they unlock the tc under shifts?

Dieselboy. · Dec 21, 2012

Problem with that theory is my trans usually wont crack 110* in the winter time with a 6.0 cooler. Unless I work it, let alone a long hwy drive it cools it off below 100*.

I have my TC unlock only on a downshift. I have no idea why you would unlock on an upshift. That video is odd, seems like it didnt lock until 60MPH+.... OD light flash at all ? Does it act differently in other tunes ?

ghohouston · Dec 21, 2012

o/d light has not flashed since i installed the new bts, it was flashing before, no tranny codes either, like i said, brand new pi converter, and brand new bts, it seems to act this way in other tunes too, but this vid was in my all out tune (6) which like stated, is my dd tune

Gearhead · Dec 22, 2012

bigfords said:
Matt, my converter doesn't lock until fluid is up to temp either. Is there a way for you to change that, so it locks up even when cold. If so, why not have it lock even while cold? (I have your tunes also)

Rich

That's the way the factory does it to build heat faster. Trans fluid needs to be somewhat warm for proper trans operation.

PowerStrokeEnginuities · Dec 22, 2012

When cold, would it shutter at all.... Or I think my trans is finally biteing the dust, lol

Gearhead · Dec 22, 2012

TyCorr said:
Cold fluid is hard on the trans. Beating on it when cold is a double edge sword. On one hand, the converter will slip because electronically it wont lock. On the other hand, besides five other fingers, the slipping converter will.generate so much heat that the fluid will become hot quick. Stock tuning will keep ya in 3rd, iirc, and unlocked at highway speeds. With "most" tuning it seems that you can get into.4th but.still no lock until the.fluid is warmed.

Matt, are the available tunes.for.trucks with upgraded injectors, turbo, and oil still the same? In other words, does a stock, tow, daily driver, econ, race,etc.tune ztill.exist? Or are tunes more user influenced?

I try to keep the tune spread from stockish to max power with some in between.

ghohouston · Dec 22, 2012

So anyone got any ideas for me???

bigfords · Dec 22, 2012

TyCorr said:
Cold fluid is hard on the trans. Beating on it when cold is a double edge sword. On one hand, the converter will slip because electronically it wont lock. On the other hand, besides five other fingers, the slipping converter will.generate so much heat that the fluid will become hot quick. Stock tuning will keep ya in 3rd, iirc, and unlocked at highway speeds. With "most" tuning it seems that you can get into.4th but.still no lock until the.fluid is warmed.

My old truck, (with a different tuner) did not have the trans warm-up strategy and would lock the converter even while cold. I did have a somewhat built up tranny in that truck and better converter, not sure if that made a different tuning wise though. The truck was a 99.5.

Its not too big a deal to me, I just feel like I'm really drinking the fuel while cruising down the highway with the converter unlocked.

POWER-STRUCK · Dec 22, 2012

i'm curious to know what your ebp is reading

Gearhead · Dec 22, 2012

ghohouston said:
So anyone got any ideas for me???

Does it work right once the truck is warm?

5ninef250 · Dec 22, 2012

Is that an ABS light on? Looks to me like all the shifts happen with converter lock around 60 and OD right after that. Where would you like your shifts to occur?

ghohouston · Dec 22, 2012

POWER-STRUCK said:
i'm curious to know what your ebp is reading

Mine???

ghohouston · Dec 22, 2012

Gearhead said:
Does it work right once the truck is warm?

no, that video was the truck fully warm, like i said, 15 minutes of high idle and about 29 miles after, Then i took the video

ghohouston · Dec 22, 2012

5ninef250 said:
Is that an ABS light on? Looks to me like all the shifts happen with converter lock around 60 and OD right after that. Where would you like your shifts to occur?

Yes its an abs light, i need to repace right front hub, and yes it locks around 60 then OD

85_305 · Dec 22, 2012

Dieselboy. said:
Problem with that theory is my trans usually wont crack 110* in the winter time with a 6.0 cooler. Unless I work it, let alone a long hwy drive it cools it off below 100*.

I have my TC unlock only on a downshift. I have no idea why you would unlock on an upshift. That video is odd, seems like it didnt lock until 60MPH+.... OD light flash at all ? Does it act differently in other tunes ?

I've heard you need to unlock the tc under upshifts because it can start destroying stuff from the power and the delivery of the power Is violent?

Dieselboy. · Dec 22, 2012

85_305 said:
I've heard you need to unlock the tc under upshifts because it can start destroying stuff from the power and the delivery of the power Is violent?

Problem with that is my truck goes through the rpm range to fast, so I lock in 3rd and then shift into od, if I went WOT it would come into OD and unlock and the lock back up, it would probably hit the rev limiter.
As well as my lockup table in OD is always locked, it will shift before it unlocks. So on my 3-4 shift it would go 3rd locked into OD unlock and then instantly lock back up. Just seems pointless.
Unlocking on a downshift, yes is a must as that is very hard on the trans.

85_305 · Dec 22, 2012

So upshifts @ wot aren't bad w/ the tc locked, but downshifts it needs unlocked... Good to know

ChunderDownUnder · Dec 24, 2012

Mines holding gears way to long as well. With only the slightest of throttle input 1st to 2nd will rev out to 2500rpm same with 2nd to 3rd. I have a performance trans from JW. To be fair I have been talking to Matt and we are going to sort it out in the new year after I get her on the dyno.

ghohouston · Dec 24, 2012

ChunderDownUnder said:
Mines holding gears way to long as well. With only the slightest of throttle input 1st to 2nd will rev out to 2500rpm same with 2nd to 3rd. I have a performance trans from JW. To be fair I have been talking to Matt and we are going to sort it out in the new year after I get her on the dyno.

I may have to drive down there and have him dyno tune it....

02BigD · Dec 24, 2012

That video posted earlier has me scratching my head. Never would've guessed that was anything more than a stock injector truck with a toon.

Fwiw, the way Matt setup the shifts, my truck runs the gears out higher than 2500. I've never thought anything about it because it does a great job of lighting the turbo, being smoke free, and staying on the turbo through partial throttle shifts. Maybe because it's a "built" motor?