I know a couple of you have EFI on your vans. I think shop you said yours is 50hp tune. I think joey, you said your running efi. Have you 2, or anyone else tried anything more than 50hp?

It's the same motor drive train as your truck what are worried about. Go around smoking the tires off it you be the coolest Van guy in town. Go ahead give it 400 ponies see what shes got:D

Yes we both have a tune around 120 HP if I remember correctly. Joey will correct me if I am wrong.

:DNo alli in these try 325 hp

I was on a dyno not to long ago and I want to say 325hp and 580tq at the wheels. Thats 105 more hp and 160 more tq. I would like to see 400hp and 800 tq at some point.

Joeys dyno was something like 330 horse and 580 torque.

I will shut up now.

typing at the same time:D

400? I'm shooting for 500+. Want to beat my lbz dyno #'s with the van. Just curious on how the heat issue for the van works out, and if you guys ran 1/4 with it, how did it do?

I was on a dyno not to long ago and I want to say 325hp and 580tq at the wheels. Thats 105 more hp and 160 more tq. I would like to see 400hp and 800 tq at some point.

Joeys dyno was something like 330 horse and 580 torque.

I will shut up now.

typing at the same time:D

that was great

400? I'm shooting for 500+. Want to beat my lbz dyno #'s with the van. Just curious on how the heat issue for the van works out, and if you guys ran 1/4 with it, how did it do?

You can run the 1/4 but you will need to find traction. You need to have the van empty, track rules, so it spins like your on ice. Once it bites your looking at a 2.3 60' time:D
It spins going into 2nd as well.

My van is empty now. Trans noise is getting worse. Talked to lemon law attorny last week or so, no word back from gm yet. Looking at a couple places say they can build the trans to handle anything the motor can put out. And a couple vendors here say no problem beating my truck #'s. Man am I ever itchin to start ordering parts.
I don't think running a 1/4 is gonna have too much effect on heat on the motor.
You doing a boosted launch like the 4x4 trucks do? How high are you taking the boost off the line? regular road tires?

I say build the trans make the tune put some 10.5" wide slicks on it and do some wheelies :D

no longer a van tune, little more figuring out than i thought, but i went where no man has go before, i can load a lbz tune into my van engine, it is now a full blown lbz and i can run any lbz programmer now without the crap idles or poor touchy throttle response.

how long is your trans gonna last with lbz tune, and if you are talking about the vehicle in your sig, it looks like you are a long way off from a van.

its still a van engine with all the wiring of the van in a conversion. i have been running 400hp tunes for over a year, you just have to know when and when not to use it all. like pulling a trailer up a mile hill on the go peddle, your definitely going to smoke it. i am just installing a 6spd behind the engine as we speak, i already hacked the wiring harness to accept the allison.

don't under estimate the 4l85e they are great trannys, they are proven trannys with aftermarket parts.

This is off topic a little but I think I remember you telling me how you would never run more power than GM desiggned it for:D
That didn't last long

Well this weekend, my brother stacked his 06 lly van. He has had the PPE duramaximizer on for a few months now with great results. (With just the Duramaximizer, the van will walk away from my other friends 03 LB7 duramax truck with an Edge 100hp chip) So another friend of ours has a PPE economy programmer. So we loaded the 40hp tune on top of the duramaximizer on 100hp. That alone made a big increase in power, it seemed alot more than just 40hp more. Drivability and trans shifting is perfect on the 40hp tune. So we, of course, loaded the 160hp tune on it after that. First off, the idle on the 160hp tune had a lope like a radical sled puller. Thats the only engine running issue. We turned the duramaximizer down to 0hp. With only the 160hp tune the power was very very impressive. It would blow a very black steady stream out the 5in exhaust. Then we turned the duramaximizer up to 100hp also. Now the van would blackout a 3 lane road with ease. In the rear view mirror all you see is a black cloud, nothing else. And power wise, it would now break the BFG a/t's loose at a 25-30mph roll and get up to 70 in what seemed like few seconds. The only issue besides the idle is the trans shifting. It wasnt slipping, it just didnt seem right. Either way, we took it off the 160hp tune before the 4l85e scattered. So now he has it on the 40hp tune and everything is good. It shifts the way it should and has plenty of power.

Well this weekend, my brother stacked his 06 lly van. He has had the PPE duramaximizer on for a few months now with great results. (With just the Duramaximizer, the van will walk away from my other friends 03 LB7 duramax truck with an Edge 100hp chip) So another friend of ours has a PPE economy programmer. So we loaded the 40hp tune on top of the duramaximizer on 100hp. That alone made a big increase in power, it seemed alot more than just 40hp more. Drivability and trans shifting is perfect on the 40hp tune. So we, of course, loaded the 160hp tune on it after that. First off, the idle on the 160hp tune had a lope like a radical sled puller. Thats the only engine running issue. We turned the duramaximizer down to 0hp. With only the 160hp tune the power was very very impressive. It would blow a very black steady stream out the 5in exhaust. Then we turned the duramaximizer up to 100hp also. Now the van would blackout a 3 lane road with ease. In the rear view mirror all you see is a black cloud, nothing else. And power wise, it would now break the BFG a/t's loose at a 25-30mph roll and get up to 70 in what seemed like few seconds. The only issue besides the idle is the trans shifting. It wasnt slipping, it just didnt seem right. Either way, we took it off the 160hp tune before the 4l85e scattered. So now he has it on the 40hp tune and everything is good. It shifts the way it should and has plenty of power.

sounds like a fun weekend

This is off topic a little but I think I remember you telling me how you would never run more power than GM desiggned it for:D
That didn't last long

did I say that?!?! Couldn't of been me

sounds like a fun weekend
haha, yes it was fun. Especially the faces of people driving next to us and wondering why a work van just blew by them and now they cant see. lol

did I say that?!?! Couldn't of been me

It was pussow.

It was pussow.

had to check. I've been known to say some crazy stuff.

haha, yes it was fun. Especially the faces of people driving next to us and wondering why a work van just blew by them and now they cant see. lol
I didn't think the PPE would even load into the van. Good to know.

I didn't think the PPE would even load into the van. Good to know.
Yep, it def did.

Joey, did you do your own efi tuning or are you using pre made tunes?

My van lemon law suit is scheduled for court sometime this month. Attorney still thinks they try to settle before court.

I had a get together at my place this weekend with some other Michigan guys, and Merchant was here. Talked to him and some of the other guys about the van. I'll tell you, I'm itching BAD to get this thing flying down the 1/4 mile. As soon as I get a final decision from GM....

Joey, did you do your own efi tuning or are you using pre made tunes?

My van lemon law suit is scheduled for court sometime this month. Attorney still thinks they try to settle before court.

I had a get together at my place this weekend with some other Michigan guys, and Merchant was here. Talked to him and some of the other guys about the van. I'll tell you, I'm itching BAD to get this thing flying down the 1/4 mile. As soon as I get a final decision from GM....
I got my tunes from McRat racing, came free with the EFI:D
I have a few different ones he made for the van. I wish he was closer and could do some acual dyno tuning to get more out of it.
I may end up doing that with someone who is close by which sucks as Pat has been great to deal with and he abuses his trucks daily in the quest to go insanely fast in a diesel truck.

Do you know what tq the tune is putting out?
And all you have done to the trans is the transgo?

Do you know what tq the tune is putting out?
And all you have done to the trans is the transgo?Just around 800ftlbs. Trans has trans go and preseion converter and new alto red clutches

hmmm this may not be as easy as I was hoping....


You cant get past 14.9?

hmmm this may not be as easy as I was hoping....


You cant get past 14.9?
Need more traction, 60' times are in the 2.5- 2.7 range

sorry if I asked this before: Normal street/stock tires, 245/75/16's?

sorry if I asked this before: Normal street/stock tires, 245/75/16's?
Yes, lowered to 30lbs. Lowering the pressure was a huge advantage. I can leave with a little boost now.

Wonder if the 265's will help any? about an inch taller

I have a set of soft tires to try when the dragway opens. I need to add some more power though as I would like it in the high 13's which I think is possible.

while your having eric do your exhaust and trans just have him throw in a 4x4 conversion kit:eek:.that should held with traction:D.

change your ecm from van to lbz, then you can run any of the tuners with out any issues.

change your ecm from van to lbz, then you can run any of the tuners with out any issues.

Going with efi on the van, not an issue.

change your ecm from van to lbz, then you can run any of the tuners with out any issues.
Is it just as simple as swapping out the ecm? If so could it just be programmed with an LBZ program?
I have a stock LBZ tune that when loaded in the van with the EFI live, it doesn't run right.

Is it just as simple as swapping out the ecm? If so could it just be programmed with an LBZ program?
I have a stock LBZ tune that when loaded in the van with the EFI live, it doesn't run right.

Was wondering the same, I thought some handhelds dont tune the trans but you got to think the trans is taken into account when they make the things.

I'm working with a van customer right now. I can tell you from experience (mine and Customer's) that just putting LBZ stuff in does not work. Same as the medium duty trucks, it takes some finesse and work from scratch to do it right.

Wow somebody went through the effort to pull the ECM in a van. I would like to hear from that customer to see what they think about his Kennedy tune.

I'm working with a van customer right now. I can tell you from experience (mine and Customer's) that just putting LBZ stuff in does not work. Same as the medium duty trucks, it takes some finesse and work from scratch to do it right.

What kind of power is the tune going to make?

Is it just as simple as swapping out the ecm? If so could it just be programmed with an LBZ program?
I have a stock LBZ tune that when loaded in the van with the EFI live, it doesn't run right.

no it is not that simple, doing just the tune will get you know were but a dead ignition switch it takes a few wires to change

I'm working with a van customer right now. I can tell you from experience (mine and Customer's) that just putting LBZ stuff in does not work. Same as the medium duty trucks, it takes some finesse and work from scratch to do it right.

your correct, i believe i am the only one who has done this at the moment. i can now take any lbz cal. and tune my ecm with efilive. send me a pm i would like to talk with you.

You need to have the van empty, track rules, so it spins like your on ice. Once it bites your looking at a 2.3 60' time:D
It spins going into 2nd as well.

Try building a false floor raised up that holds weights over the rear area. I have seen two people do this in the past at the track and the tech inspection doesn't see anything but an empty cargo area with a carpet over it :) Just thought I would throw that in for an idea.

Try building a false floor raised up that holds weights over the rear area. I have seen two people do this in the past at the track and the tech inspection doesn't see anything but an empty cargo area with a carpet over it :) Just thought I would throw that in for an idea.
I was going to try to bolt something at the rear doors to hold a few hundred lbs of what ever. It would just suck if you were to wipe out and have it land on you:D

Wow somebody went through the effort to pull the ECM in a van. I would like to hear from that customer to see what they think about his Kennedy tune.

I did not realize it was that hard to do. Customer has not complained. He's had to do quite a few swaps so far as he purchased from another vendor (truck based and did not work properly) and I've sent him a couple of duds based on EFI merge bug merging with incorrect OS. We now have one in and running smoothly with mild gains.

What kind of power is the tune going to make?

Depends what a guy wants. I went very mild with this rendition just to get something to make a difference and make it run. The first one that I built was quite a bit more aggressive, but would not start the vehicle and had numerous DTC's. We later found out that when I built it I had the EFI version with the merge bug and it merged incorrect truck tables etc. Would not even turn over, but he got it to start by jumping the starter. He liked the power better, but of course it was full of other quirks. Now that we have a working base, I can bump up the power and hopefully the trans will hold up. He's expecting/accepting the fact that trans mods will be coming soon if we push too far.

whats the benefit of swapping the ecm? doesnt efi tune the ecm and tcm??

If he has your ECM he can lock it so you do not share the tune with others and prevent any oops that might happen.

I did not realize it was that hard to do. Customer has not complained. He's had to do quite a few swaps so far as he purchased from another vendor (truck based and did not work properly) and I've sent him a couple of duds based on EFI merge bug merging with incorrect OS. We now have one in and running smoothly with mild gains.



Depends what a guy wants. I went very mild with this rendition just to get something to make a difference and make it run. The first one that I built was quite a bit more aggressive, but would not start the vehicle and had numerous DTC's. We later found out that when I built it I had the EFI version with the merge bug and it merged incorrect truck tables etc. Would not even turn over, but he got it to start by jumping the starter. He liked the power better, but of course it was full of other quirks. Now that we have a working base, I can bump up the power and hopefully the trans will hold up. He's expecting/accepting the fact that trans mods will be coming soon if we push too far.

Post up some dyno runs if you make any. I want to see 400rwhp out of mine.

I was going to try to bolt something at the rear doors to hold a few hundred lbs of what ever. It would just suck if you were to wipe out and have it land on you:D
I do some work in one of the FedEx buildings here, in the back of all of their Dodge Sprinters they have metal plates on both driver and pass sides. From the back of the wheel well to the back of the van, bolted down. The first year or so they didnt have anything in them.

Something like that?

My van has racks shelves inside so it limits what I could do anyways. The shelves weighs 300lbs or so which must help

I know a couple of fat girls you could throw in back.

I was thinking a keg

Wondering if you have refined that customers van tune and come up with a decent one that works good overall, not too agressive? Spoke with you on the phone before a few months back and you had not yet messed with a van.

Wondering if you have refined that customers van tune and come up with a decent one that works good overall, not too agressive? Spoke with you on the phone before a few months back and you had not yet messed with a van.

I'm slowly creeping up on things with this tune. He wants more power yet, but I don't like to make large changes and push things. Instinct tells me that we are in a good place with the latest revision, BUT the first tune sent (the one that was all messed up) ended up being pretty aggressive and of course, he wants it to equal to or better than that one.

Are the tunes you guys running tuning both the tcm and ecm?

Just the ECM.

Latest version seems to be doing what we were after. One inexplicable P046c DTC that will need to be addressed, but other than that it gets up and drives nicely.

no it is not that simple, doing just the tune will get you know were but a dead ignition switch it takes a few wires to change

Was is just pin swaps?

Can you tell how you did it?

Thanks in advance!

Just the ECM.

Latest version seems to be doing what we were after. One inexplicable P046c DTC that will need to be addressed, but other than that it gets up and drives nicely.


Customer plans to have dealer replace the EGR valve. If the DTC persists we'll have to look at the tune. The EGR is inop already in the tune, but if the electronics go bad I haven't neutered out all of the DTC's. I prefer to keep as many active as practical for proper diagnosis.

One other report is that the factory tuning had some surge issues at certain (45mph?) that seem to be entirely gone now.

This is a VERY mild tune that perks it up nicely. Lots of room for expansion if the drivetrain is beefed. I just hate to push it. Wreck one trans and the tuner/tuning gets a bad rep...

This is a VERY mild tune that perks it up nicely. Lots of room for expansion if the drivetrain is beefed. I just hate to push it. Wreck one trans and the tuner/tuning gets a bad rep...

Suncoast now offers a built converter based of the alli converter.

Joey, you made it back from MI I'm guessing? Everything ok with the van?

Suncoast now offers a built converter based of the alli converter.



Are you running this converter with a Transgo kit?

anyone got a good 0-60, 60, 1/8, etc time in a van?