[mattr66]

This is something that has always bothered me about tuning. Why is it that we're still having to trick the PCM into other operating modes instead of doing a reprogram of the fueling tables and such? Why change sensor scaling instead of changing the commanded operating conditions? I understand this is pretty much how everyone does it, maybe it's a limitation on how SCT allows it in their software. From a programming perspective, it's kinda backwards though.

You can only work with what you are given....

 

[cartmanea]

So is it just because that's how SCT sets the software up?

 

[mattr66]

So is it just because that's how SCT sets the software up?

There are some parameters that we aren't given access to buried deep in the code and that's what I did to get around a small issue on some trucks. It's just the way I did it and nobody else does more than likely. I wouldn't worry too much about it. Just call the lower boost a new normal, what's the big deal?

 

[Dangyo]

With my SRL+ tune, my stock boost gauge with the converter locked shows 30+ psi. I dont really care what my boost gauge reads, its building boost, hauling ass with no time to look at alll my gauges anyway!

 

[stoker04]

Exactly you should be paying attention to the road not the gauges! Lol

 

[Krisco]

Matt's SRL tune definitely gave me a whole new appreciation for the skinny pedal!

Kris

 

[3brorce]

Love the SRL too. Wish it did lug a little more than it does. Wish the tq lockup was more aggressive and the shifts even a little firmer. But i can and did adjust shift pressures. Like the easy pedal and power of the tune. I think my SRL boosts about like what the SRL+ does because my gauge reads 34-35 in od on heavy pedal. Glad because even with stock bolts I think my truck can handle it.

 

[cartmanea]

I'll need to give SRL a try eventually. I have Innovative Diesel tunes and had to work with Eric a lot on cleaning up the XStreet tune. It would really bog down and smoke on the highway when the TC locked and speed was around 50-55. If I gave it throttle it would black out the highway before unlocking and shifting down. Finally got away form the constant TC lock so now I just have to let off and it will unlock like the stock shifting then accelerating won't smoke as much.

 

[Dangyo]

Is it smart to turn up the shift pressures with the sct for more firmer shifts with normal driving or will it hurt the transmission?

 

[stoker04]

I dont touch the settings...Matt has it set up how I like it.

 

[mattr66]

Is it smart to turn up the shift pressures with the sct for more firmer shifts with normal driving or will it hurt the transmission?

You shouldn't have to touch my settings. it should be nice and firm around town without being overly harsh.

 

[3brorce]

You shouldn't have to touch my settings. it should be nice and firm around town without being overly harsh.

Can a tune cause a shift flare if the line pressure is not firm enough? Is the firmer the shifting the better? Will the trans not learn how it shifts and then settle down after awhile of driving if you do adjust line pressures to be firmer?

 

[pizza pig]

not sure, im getting a flare on the 3-5... gotta replace the worn out solenoid.

 

[mattr66]

Can a tune cause a shift flare if the line pressure is not firm enough? Is the firmer the shifting the better? Will the trans not learn how it shifts and then settle down after awhile of driving if you do adjust line pressures to be firmer?

The 3-5 shift really needs the help of the solonoid...... the tune can't make up for a mechanical design flaw.

 

[scparrish]

Gogo diesel and bts make a good solenoid to fix the flaring

 

[pizza pig]

bts makes one too? I ordered dougs, should be here this week

 

[3brorce]

I didnt realize bts makes one either. I wonder how much he charges for his?

 

[scparrish]

Not sure but he used it when he built my transmission