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LHN...We ARE the Joneses
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I got used to a Jacobs "Jake" Brake driving tractor trailers and I miss it. I am thinking the turbo brake will be similar
It's more subtle.
If you liked running the Jake, I don't see why you wouldn't like the TB on full time, no switch.

Do the pin mod, then Put that $700 towards a lift pump & aux filter kit.
 

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Discussion Starter #42
Check a little more on doing the ecm wire with switch that鈥檇 save you about $740
I researched it a lot and figured I'd rather spend a little bit now and get it done right and safer than screw it up myself and spend a lot more getting it fixed. From what I've been reading I'm sure I'll enjoy the extra power the tunes will give me also. This forum is a wealth of knowledge.
 

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Be careful with how much extra power you add, that could be a bigger problem.
You鈥檒l find many bragging running 100, 150 + hp with no issues, most end up trading in with issues just around the corner.
One recently running 150hp tune for a few years then started complaining the engines smoking more and making more rattling sound, lost 3-4 mpg.
He refused to accept maybe his 150 tune was not a good idea, that I don鈥檛 know what I鈥檓 talking about, then continued asking what鈥檚 causing his problems. :thumb

Go no more than about 30-40 hp which would be close to a heavy tow tune.
Don鈥檛 let anyone talk you into adding more, and they will.
 

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Discussion Starter #44
Be careful with how much extra power you add, that could be a bigger problem.
You鈥檒l find many bragging running 100, 150 + hp with no issues, most end up trading in with issues just around the corner.
One recently running 150hp tune for a few years then started complaining the engines smoking more and making more rattling sound, lost 3-4 mpg.
He refused to accept maybe his 150 tune was not a good idea, that I don鈥檛 know what I鈥檓 talking about, then continued asking what鈥檚 causing his problems. :thumb

Go no more than about 30-40 hp which would be close to a heavy tow tune.
Don鈥檛 let anyone talk you into adding more, and they will.
Yeah, I don't want a lot more power. I've just read that my 2006 lly,lbz or whatever is just a tuned down 2007 lbz. Would like to get that extra little nudge the 2007's are getting and maybe a touch more. Definitely not looking for the big HP numbers like you said 100, 150. Probably just add 50, maybe 60 tops to my stock. I think I'm at 300HP right now. I don't run hard either. Just ease it up and down the road. Like you said the heavy tow tune probably.
 

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Discussion Starter #45
I got my autocal with 5 tunes and my DSP5 switch installed over the weekend. Thank you to Hook'em_Horns! for the recommendation you gave me on where to get them. First thing, The fellow I dealt with was very nice, helpful and seemed knowledegable. He followed through with everything he said he was going to do and it was fast. Now.....

I have come to the conclusion that these tunes, not just mine, but most are probably more beneficial to those with automatic transmissions. My tunes are as follows:
1- +20 No TB
2- +25 TB
3- +50 TB
4- +100 TB
5- +125 No TB
I have run each one for a while an to be honest I can't tell any difference from any of them from stock. As far as the Turbo Brake goes if I'm wound up to about 2800 or so RPM's an let off I can fell a slight hold back and if I switch off to a tune without it while slowing I can feel the resistance let up just a bit. But even going downhill with no load the truck or not towing anything the truck will still pick up speed while the TB is engaged. As far as pulling power each one feels just like it did without any tunes.

I know the switch is working, I checked it with the autocal as it changes numbers when I move the switch. I guess the EGR is turned off and I'm putting in a blocker plate as well this week per the guys recommendation and my speedometer seems to be corrected for my tires which were 2 sizes up from stock.

You guys think that maybe this was just a $750.00 lesson on manual transmissions and using tunes or is something else going on. The guy who did the tunes said I would fell a pretty big difference from stock, especially the +120 tune, but it all seems pretty much the same to me. Surely this guy knew what he was doing? Or is there something we're missing because of the ZF6 Transmission?

Any ideas or questions are welcome.
 

LHN...We ARE the Joneses
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You should at least feel a more sensitive throttle off the line.
Did he say they have experience with tuning a ZF-6?

I have no experience with the switch, single tune only (I just wanted the TB active).
Check with the Tuner on your concerns, perhaps he can troubleshoot and verify it's all hooked up and working correctly?

No experience with the manual either. Sry.
But with the Auto, I don't really feel the TB unless there's a load on. More weight, more noticeable. And the Rs will climb with more gradient and weight, than what you might see with a Jake.

With a manual, it's more aggressive when you throttle down, than the grade braking we feel on the Auto is. Maybe with yours, it masks the TB increase?
Just throwing things out there.
 

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Ive had two 08 LMMs. The first one was teh one I installed the TB with the pin in the ECM. The second one has the TB in the tune.

I have noticed the TB seemed to be MUCH more aggressive with the grounded pin than the one with the TB in the tune.

Since these are two different trucks I really can't tell you if the difference is the method used to activate the TB or the trucks themselves.

If I knew for sure it was the method of activating the TB I would do the mod on the current truck which has the TB activated in the tune.
 

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Discussion Starter #48
You should at least feel a more sensitive throttle off the line.
Did he say they have experience with tuning a ZF-6?

I have no experience with the switch, single tune only (I just wanted the TB active).
Check with the Tuner on your concerns, perhaps he can troubleshoot and verify it's all hooked up and working correctly?

No experience with the manual either. Sry.
But with the Auto, I don't really feel the TB unless there's a load on. More weight, more noticeable. And the Rs will climb with more gradient and weight, than what you might see with a Jake.

With a manual, it's more aggressive when you throttle down, than the grade braking we feel on the Auto is. Maybe with yours, it masks the TB increase?
Just throwing things out there.
There's maybe a little bit more throttle response but it's not enough to really notice and maybe it's the same as stock. It just doesn't seem to be there. I put some tunes on my 2015 F-150 and I could immediately tell a difference. Of course it's automatic.... I might give the guy a call and get his input on it today.
 

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One way to see if your egr is turned off would be to unplug it, if you don鈥檛 get a check engine light, it鈥檚 off, if you do then it鈥檚 still functioning and more than likely your tunes didn鈥檛 load correctly.
Comparing manual to auto 'dunno;

Turbo brake functioning, oh! you鈥檒l know and your speed will NOT increase.
It鈥檚 pretty close to a boat or a jet ski, when you let off the throttle you would have a big drag slowing you down, even empty.

Wiring a turbo brake, if you don鈥檛 use a switch, it鈥檒l get very irritating, every time your accelerating to pick up speed, when you let off the throttle even the slightest to shift the turbo brake will engage slowing you down.
Anyone that鈥檚 driven a truck that has a jake brake has experienced this when trying to pick up speed, it鈥檚 a quick reminder to switch鈥檈r off.

If your not really feeling much if any difference between the tunes, and you don鈥檛 feel any aggressive slowing down with the TB, which probably kicks out around 1500-1800 rpms, then more than likely your tunes didn鈥檛 load.
This is probably where a wired TB would work much better with having a manual trans.

Yes, give your tuner a call, whoever that is.
 

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Discussion Starter #50
Ive had two 08 LMMs. The first one was teh one I installed the TB with the pin in the ECM. The second one has the TB in the tune.

I have noticed the TB seemed to be MUCH more aggressive with the grounded pin than the one with the TB in the tune.

Since these are two different trucks I really can't tell you if the difference is the method used to activate the TB or the trucks themselves.

If I knew for sure it was the method of activating the TB I would do the mod on the current truck which has the TB activated in the tune.
The guy that tuned it said the TB had to be turned on in the tune and if I didn't want to use it switch to a tune without it. I just can't figure out why there's no noticeable difference in power or like Hook'em_Horns! said a more sensitive throttle.
It's Cornfusing. 'dunno;
 

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The guy that tuned it said the TB had to be turned on in the tune and if I didn't want to use it switch to a tune without it. I just can't figure out why there's no noticeable difference in power or like Hook'em_Horns! said a more sensitive throttle.
It's Cornfusing. 'dunno;
My guess is, your tubes didn鈥檛 load, do the egr test I mentioned above.
It鈥檚 possible only your #1 tune loaded, I鈥檝e never mess with more than one at a time.
So it鈥檚 easier to block your egr to check this out vs just unplugging it to see if you get a code?
 

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Discussion Starter #52
One way to see if your egr is turned off would be to unplug it, if you don鈥檛 get a check engine light, it鈥檚 off, if you do then it鈥檚 still functioning and more than likely your tunes didn鈥檛 load correctly.
Comparing manual to auto 'dunno;

Turbo brake functioning, oh! you鈥檒l know and your speed will NOT increase.
It鈥檚 pretty close to a boat or a jet ski, when you let off the throttle you would have a big drag slowing you down, even empty.

Wiring a turbo brake, if you don鈥檛 use a switch, it鈥檒l get very irritating, every time your accelerating to pick up speed, when you let off the throttle even the slightest to shift the turbo brake will engage slowing you down.
Anyone that鈥檚 driven a truck that has a jake brake has experienced this when trying to pick up speed, it鈥檚 a quick reminder to switch鈥檈r off.

If your not really feeling much if any difference between the tunes, and you don鈥檛 feel any aggressive slowing down with the TB, which probably kicks out around 1500-1800 rpms, then more than likely your tunes didn鈥檛 load.
This is probably where a wired TB would work much better with having a manual trans.

Yes, give your tuner a call, whoever that is.
He was supposed to set the TB to cut out at 1300 rpm's. It definitely isn't as much as a jake brake which I knew it wouldn't be but not even like the boat or jet ski slow down, which is a great description by the way. I wonder how I check if the tunes loaded. I reckon I'd better call him.

Once I put in the egr plate it should throw a code if it isn't tuned off, right?
 

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Discussion Starter #53
My guess is, your tubes didn鈥檛 load, do the egr test I mentioned above.
I'll have to find out how to unplug the egr and I'll let you know. Probably not too difficult?
 

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No, not difficult to unplug (much easier than installing a plate). It's (EGR valve/motor) behind the alternator and down on the front of the long shiny tube cooler, hanging from the underside of the large cast intake piece running across the top.
 

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Discussion Starter #55
No, not difficult to unplug (much easier than installing a plate). It's (EGR valve/motor) behind the alternator and down on the front of the long shiny tube cooler, hanging from the underside of the large cast intake piece running across the top.
I'll look. Any pictures on here anywhere. I don't want to unplug the wrong thing. I do know my speedometer is different now.... could that have been corrected without the tunes loading correctly?
 

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The guy that tuned it said the TB had to be turned on in the tune and if I didn't want to use it switch to a tune without it. I just can't figure out why there's no noticeable difference in power or like Hook'em_Horns! said a more sensitive throttle.
It's Cornfusing. 'dunno;
That is correct, the TB has to activate the tune, UNLESS you wire up the ECM to activate the TB. In my first truck I did the mod in the ECM and it was VERY effective. When it was switched on (grounded) it was active whether in TH mode or not (in the Allison xmsn).

It could be just my imagination that it was more effective by being wired as opposed to being activated in the tune. I don't know the answer to that one.

Since you have a manual xmsn there is no TH mode but if the TB is activated in the tune it must be in the logic of the ECM or it would not function.

The TB will not affect the power at all and is only activated, at least in the automatic xmsn when you let off the throttle.

The tuner undoubtedly wrote the tunes like he did so you can have power range selections without the annoying TB when not pulling. That would get annoying like DRC mentioned earlier.
 

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Like I mentioned it鈥檚 possible your #1 tune no TB loaded, loading 5 tunes takes a little more effort than just plug and play single tunes.
 

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I'll look. Any pictures on here anywhere. I don't want to unplug the wrong thing. I do know my speedometer is different now.... could that have been corrected without the tunes loading correctly?
Your tunes can correct or change the speedometer depending on tire sizes etc. I found when I told the tuner the actual diameter of my tires it was more accurate than just telling him the tire size.

If you tell him how much it is off he can adjust that in the tune and email it to you to load onto the Autocal and into the truck.
 

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Discussion Starter #59
Like I mentioned it鈥檚 possible your #1 tune no TB loaded, loading 5 tunes takes a little more effort than just plug and play single tunes.
Any way to check with the autocal? Or is there more to it than that?
 

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Your tunes can correct or change the speedometer depending on tire sizes etc. I found when I told the tuner the actual diameter of my tires it was more accurate than just telling him the tire size.

If you tell him how much it is off he can adjust that in the tune and email it to you to load onto the Autocal and into the truck.
Every tire I鈥檝e owned the tire size vs the actual measurement there has been about 1/2鈥 difference, where the actual measurement is 1/2鈥 shorter.
 
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