The SCT Thread

[brad99rt59]

Okay, ill start it since its not here yet.....

Who has it and what have you done with it? This PRP has been awhile and several people have claimed to have tuned and dyno'd with it...what are the gains????

Ive seen no definitive numbers, dyno or track number to convince me that its worth it. People have claimed they have been tuning, but no one has given us anything more...its seeming to me this is a nicer version of Superchips

I talked to a reliable source (an SCT dealer and tuner) that SCT isn't all the hype everyone thinks it is.

Its all developed by old programmers for Ford who only wanted to venture put into GM and Mopar to make some $$$. These Things were developed and proven in Mustangs, but past that not much else. The software will be obsolete in a year and you would end up spending more money for upgrades. Customer Support with SCT is lacking as the forums are down and getting info from them takes an act of congress. Your better off doing stand alone systems, even with this tuner, you will ALWAYS have limitations running a stock PCM

That the info that I gathered from him....just passing along what was told to me. The guy has a Gen2 Dak doing an R3 build and knows his Mopars also.

And so far no one in the dakota world has proven him wrong....

Discuss?

[WhiteRT]

I dont think that is entirely true.....its in its infant stages.....much like fast and dfi (there wasnt definitive tuning answers on those right out of the gate either).....

However I know that Hemifever guy (Sean) has tuned a number of mopars with the PRP.....Kenny Simpson from delphi ran a 12.2 on his vortech setup with the PRP - he had to redo his fuel system to keep up.....

So you may want to contact Sean and ask him - they have done numerous boost setups as well....

And just because you are not hearing about it doesnt mean it isnt happening - I dont think alot of r/t guys have tried it but that doesnt mean its a total bust....

Todd

[grapejuice1998]

I have had my 408 SCT tuned with the PRP back in September, but it was the first magnum motored Dodge truck tune that the Mustang tuner had ever done and he had a little bit of a learning curve happening. I need to go back and get it re-tuned though, because this tune lacks a lot. In fact, my peak numbers were higher when I ran it on a MP PCM and stock injectors.

[grapejuice1998]

I dont think that is entirely true.....its in its infant stages.....much like fast and dfi (there wasnt definitive tuning answers on those right out of the gate either).....

However I know that Hemifever guy (Sean) has tuned a number of mopars with the PRP.....Kenny Simpson from delphi ran a 12.2 on his vortech setup with the PRP - he had to redo his fuel system to keep up.....

So you may want to contact Sean and ask him - they have done numerous boost setups as well....

And just because you are not hearing about it doesnt mean it isnt happening - I dont think alot of r/t guys have tried it but that doesnt mean its a total bust....

Todd

And don't forget Marty. He's been SCT tuning effectively for quite a while now.

[brad99rt59]

im not saying it ISNT happening...but where are some results? I really wanna see what this stuff can do

[WhiteRT]

And don't forget Marty. He's been SCT tuning effectively for quite a while now.

Well I associate Sean with Marty since his title is KRC field tuner.....

And I think there are results just NOT on our forum.....I know they have been doing close to standalone type performance tunes with it.....

Go get yer shit redone!:D

Todd

[grapejuice1998]

I'm gonna call the tuner tomorrow and see if he has time to mess with it. I don't want to leave it if I don't have to.

[hskr]

Should see if we can't get hemifever to register on here and possibly "sponsor" the Nats? I know he has done group buys in the past for the SCT tuner. And even his normal price isn't out of line since he offers free "tweaks" to the tune. Not sure how that works though.

[brad99rt59]

Should see if we can't get hemifever to register on here and possibly "sponsor" the Nats? I know he has done group buys in the past for the SCT tuner. And even his normal price isn't out of line since he offers free "tweaks" to the tune. Not sure how that works though.

he emails you a formula...been doing it awhile now i hear for a small fee

[DaPurpleRT]

Well, it DOES work. Install 30lb injectors in your truck and see how it runs. Mine runs fine with them. The tuner tuned part and full throttle. My numbers were pitiful, but early on he had trouble with an 02 sensor giving a reading. Said he was afraid it might be down and causing the engine to run one side lean. No codes for 02 though.

From baseline to tuned it gained 18whp and 38wtq IIRC. Of course it also runs super smooth in all conditions as well (one of his aims).

I actually got around to doing a comp. test the number concerned me so, and while comp came up fine, was disturbed to find out the pass side appears to be running very lean and the driver's banks a bit rich (sounds familiar....). It is the pass side 02 that refused to give him reading. I have one to replace it if I can ever get both temperatures and weather to cooperate.

I just don't know how much difference a bad 02 can make. I know some, but if it's not a lot.... something is wrong somewhere else....

Oh yeah, back tot he tune, he improved the curve too. Before I could barely get a chirp/lil spin off idle (I know, I know)), after I can spin through 1st and into 2nd. He said my low rpmms were really, really screwed up (stock Mopar PCM).

That's my insight from my weaksauce 426.

Oh yeah, and I had hoped to at least get some decent juice numbers, but we only ran it a couple times monitoring the AF closely. It was blowing out the damned spark plugs, so I'm going to get some 3922s to replace the 3923s. Knowing what I know now, that 02 may have been involved too.

[Five9Dak]

IMO the main short comming of the SCT system is It's still relying on a narrowband o2 for fueling equations and for feedback. BAD for performance applications.

Purple: Get a damn (permanent) wideband on that thing, perhaps two, before you break more parts.

[hskr]

IMO the main short comming of the SCT system is It's still relying on a narrowband o2 for fueling equations and for feedback. BAD for performance applications.

Purple: Get a damn (permanent) wideband on that thing, perhaps two, before you break more parts.

That's why you tune WOT with a wideband O2 sensor. The PCM doesn't use the stock O2 sensor for inputs at WOT.

[DaPurpleRT]

IMO the main short comming of the SCT system is It's still relying on a narrowband o2 for fueling equations and for feedback. BAD for performance applications.

Purple: Get a damn (permanent) wideband on that thing, perhaps two, before you break more parts.

I've got a wideband in the truck, but with one side running rich, and one side running lean, when they meet at the H-Pipe, they get back to the wideband and the one side lean condition is not apparent.

Also, as mentioned below, all tuning was done using a wideband.

[swapped_360]

Well, it DOES work. Install 30lb injectors in your truck and see how it runs. Mine runs fine with them. The tuner tuned part and full throttle. My numbers were pitiful, but early on he had trouble with an 02 sensor giving a reading. Said he was afraid it might be down and causing the engine to run one side lean. No codes for 02 though.

From baseline to tuned it gained 18whp and 38wtq IIRC. Of course it also runs super smooth in all conditions as well (one of his aims).

I actually got around to doing a comp. test the number concerned me so, and while comp came up fine, was disturbed to find out the pass side appears to be running very lean and the driver's banks a bit rich (sounds familiar....). It is the pass side 02 that refused to give him reading. I have one to replace it if I can ever get both temperatures and weather to cooperate.

I just don't know how much difference a bad 02 can make. I know some, but if it's not a lot.... something is wrong somewhere else....

Oh yeah, back tot he tune, he improved the curve too. Before I could barely get a chirp/lil spin off idle (I know, I know)), after I can spin through 1st and into 2nd. He said my low rpmms were really, really screwed up (stock Mopar PCM).

That's my insight from my weaksauce 426.

Oh yeah, and I had hoped to at least get some decent juice numbers, but we only ran it a couple times monitoring the AF closely. It was blowing out the damned spark plugs, so I'm going to get some 3922s to replace the 3923s. Knowing what I know now, that 02 may have been involved too.
um did you go back and look at the flow number on the heads you got.They are only good for . 500 lift is where the max flow numbers peak. I just looked at the flow chart and higher the lift the less flow you get. which would more than likely explain the whistling sound coming back through the intake "not enough air". What I'm saying is too much bottom end not enough heads . hell put my heads on that thing and it would scream. Weak , I disagree it pulls like a sob down low till it runs out of air.

[geo2slow4u]

I'm running a hemifever tune. He is a good tuner. We try alot of drifferent things on my truck. I will talk to him and see about him coming over here and answering some questions and see about sponsoring.

[Five9Dak]

That's why you tune WOT with a wideband O2 sensor. The PCM doesn't use the stock O2 sensor for inputs at WOT.

I know.

What you don't think your ever in a performance driving situation where fueling is closed loop???? A real tune isnt just WOT on a dynojet type dyno.


To purple, something is wrong with you fuel system if you have vastly different AFRs bank to bank. Perhaps the single feed returnless system with crossover simply cant keep one bank satisfied, or a few of your injectors badly need cleaning. Does it keep up fuel pressure at WOT?

[DaPurpleRT]

I need to put a FP gauge on these 30lbers actually.

And Jerry, welcome, heh, but anyways, the flow number are at .500 for stock Iron Rams. Mine wer eported out by Champion Performance and were 281 and 198 @ .600 respectively (still pitiful, but much better than stock). I agree though, nowhere near enough head, or cam, or exhaust. I'll get that work out. Just too weak right now even with the current parts list.

Gonna replace that 02 this weekend and see what kind of difference that makes.

To the subject title, yes, the SCT does work.

[DaPurpleRT]

PS: My tuner spent around 6 hours tuning the idle and cruising on the truck before it ever saw WOT or the dyno.

[Five9Dak]

PS: My tuner spent around 6 hours tuning the idle and cruising on the truck before it ever saw WOT or the dyno.

That's cool, I was talking to brian.

[DaPurpleRT]

I know, I was just kinda saying the SCT will allow a full tune, IF you have a dedicated enough tuner. He also used his laptop and data logging OBD system since the darn SCT doesn't have data logging yet.

[03dakrt]

I know, I was just kinda saying the SCT will allow a full tune, IF you have a dedicated enough tuner. He also used his laptop and data logging OBD system since the darn SCT doesn't have data logging yet.

Do you know what he did use for datalogging?

[DaPurpleRT]

I sure don't. I think it was some generic OBD software he used to tap into the PCM to get readings from the sensors.

How're you doing a 403 exactly?

[geo2slow4u]

Should see if we can't get hemifever to register on here and possibly "sponsor" the Nats? I know he has done group buys in the past for the SCT tuner. And even his normal price isn't out of line since he offers free "tweaks" to the tune. Not sure how that works though.


I sent him a email. We will see what he says. But if they do get a portable dyno at nats. I know something was said about it. Maybe he can fly out and tune some trucks if people are seriously interested.

[03dakrt]

I sure don't. I think it was some generic OBD software he used to tap into the PCM to get readings from the sensors.

How're you doing a 403 exactly?

Easy, 4 inch stoke with a 4.003 bore. Pistons are custom made, no reason to bore more than whats needed. 402.9 if you want to get technical:D.

[hemifever]

Hey everybody. I was asked to stop in and answer some SCT questions. Ask away and I'll see what I can answer.

[bad360rt]

Hey everybody. I was asked to stop in and answer some SCT questions. Ask away and I'll see what I can answer.

Hey Sean, welcome to the new forum! Good to have you here. :biggthumpup:

[bad360rt]

I'm curious how the software is going to be out of date in a year, when our pcm's aren't changing? It's not like they're still making our trucks and Chrysler is changing the code. So I don't see how anything is going to become outdated. Just wondering. Like any new software I'm sure there have been bugs to work out, but I think that SCT will be the way to go for us. I like that there is no wiring involved and no CELs, which you can't avoid with a standalone.

I also curious about the limitations of the stock pcm, if there are any? Maybe Sean can shed some light on that, if there's anything he's encountered that the SCT software can't handle.

I know Marty has documented some gains, even on a mild setup, over a flash. And to me, it's more than just peak gains, gotta look at overall tunability. I'm gonna be running a big ass cam, 262/270 @ .050, a flash can't handle that, and if it could, it would take more tries than it's worth. I know Marty has already run a 240ish cam with the SCT software, so I'm hoping that it will be able to handle my setup, we'll find out come April/May timeframe.

[hskr]

Hey everybody. I was asked to stop in and answer some SCT questions. Ask away and I'll see what I can answer.

Can you get rid of the e-fan wiring check engine light?

And how bout a pre-nats group buy.

[mtlcafan79]

Bump for subscription. I'm looking to buy two hand helds and/or two PRP's here sometime this year.

[krusty_R/T]

I'm interested as well and my truck needs this, but I'm getting DSMlink first and foremost

[Aves]

Hey everybody. I was asked to stop in and answer some SCT questions. Ask away and I'll see what I can answer.

Ok have a couple questions for ya. I know they are using plug-n-play 2 bar map sensors with sct for boosted application, but could you tell me how that is working with the stock computer? Are you changing the voltage values with the sct? Also when you are doing the tune through e-mail are you starting with a(for lack of better words) canned flash. Then tuning off a dyno or datalog from a wideband?


Troy

[hemifever]

I'm curious how the software is going to be out of date in a year, when our pcm's aren't changing? It's not like they're still making our trucks and Chrysler is changing the code. So I don't see how anything is going to become outdated. Just wondering. Like any new software I'm sure there have been bugs to work out, but I think that SCT will be the way to go for us. I like that there is no wiring involved and no CELs, which you can't avoid with a standalone.

I also curious about the limitations of the stock pcm, if there are any? Maybe Sean can shed some light on that, if there's anything he's encountered that the SCT software can't handle.

I know Marty has documented some gains, even on a mild setup, over a flash. And to me, it's more than just peak gains, gotta look at overall tunability. I'm gonna be running a big ass cam, 262/270 @ .050, a flash can't handle that, and if it could, it would take more tries than it's worth. I know Marty has already run a 240ish cam with the SCT software, so I'm hoping that it will be able to handle my setup, we'll find out come April/May timeframe.

I've never heard of the software being obsolete. It's been around for years for Chevy and Ford and with the $$$$$ SCT has put into the Dodge market I don't see it going anywhere. They have started off with the basic engine management tables. There is a TON of stuff missing but things are added weekly to the pcm tables as we find stuff that we want. It's not a fast process though. Especially since they are working on hemi releases.

The SCT software provides full pcm editing. On a side note, there are tables not avail yet. Tire size changing for instance. It's just a table that SCT techs need to find and present to us in the pretty gui front end which takes some time on their side. And as I said above, they present engine management first and will get back to "features" on the next go around. The only limitations I've come across were not having a table in the software for something. And it can get added....but....time....lol.

A 262/270 cam will be tough. The only thing I see giving you a fit is the idle when coming to a stop. You'll probably have to do some adjusting on the IAC. SCT can do a good bit in stepping down the tb plate but you'll probably have to crack that bad boy open a little manually.

[hemifever]

Ok have a couple questions for ya. I know they are using plug-n-play 2 bar map sensors with sct for boosted application, but could you tell me how that is working with the stock computer? Are you changing the voltage values with the sct? Also when you are doing the tune through e-mail are you starting with a(for lack of better words) canned flash. Then tuning off a dyno or datalog from a wideband?


Troy

Each tuner from SCT is completely blank. We have to build each program from scratch. f/i is tricky and takes time to write via mail order. The first few attempts just gets things driving correctly. So the base is like tuning n/a and some fuel vamping in boosted areas is put in. A wideband is nice to get data from. There is a key on map problem that will occur every few cranks. SCT has to add some specific tables in the program to allow us to change that error check for map voltage.

[hemifever]

Can you get rid of the e-fan wiring check engine light?



Your relays bad or something? Does your efan work? When does the CEL cut on? When the fans try to cut on or at engine on?

[hskr]

Your relays bad or something? Does your efan work? When does the CEL cut on? When the fans try to cut on or at engine on?

Relays and fuses are good, but removed since I couldn't get rid of the light and I don't use the stock e-fan wiring. Comes on at key on before the engine is even started. I run an aftermarket SPAL unit with SPAL-PWM controller so don't care about the factory e-fan functions. If the motor is cold, I can clear the code with key on/engine off using my digimoto software and it will stay off as long as I don't turn the truck back off. But if the engine is warm, it doesn't matter if I clear the code or not it comes back on as soon as I start the truck. It's the 1491 shorted or open condition in the e-fan circuitry. I've swapped in a known good PCM with no change.

Also, for some reason, my digimoto software won't communicate with the sensors anymore with the truck running. I've used it with no problems before. Only thing that changed is I re-wired/routed my MSD 6AL to clean up the wiring. All the wires stayed the same, I just re-routed them to be cleaner. Maybe the way I re-routed the wires is interfering with the signals from the PCM to the OBDII port??

[bad360rt]

I've never heard of the software being obsolete. It's been around for years for Chevy and Ford and with the $$$$$ SCT has put into the Dodge market I don't see it going anywhere. They have started off with the basic engine management tables. There is a TON of stuff missing but things are added weekly to the pcm tables as we find stuff that we want. It's not a fast process though. Especially since they are working on hemi releases.

The SCT software provides full pcm editing. On a side note, there are tables not avail yet. Tire size changing for instance. It's just a table that SCT techs need to find and present to us in the pretty gui front end which takes some time on their side. And as I said above, they present engine management first and will get back to "features" on the next go around. The only limitations I've come across were not having a table in the software for something. And it can get added....but....time....lol.

A 262/270 cam will be tough. The only thing I see giving you a fit is the idle when coming to a stop. You'll probably have to do some adjusting on the IAC. SCT can do a good bit in stepping down the tb plate but you'll probably have to crack that bad boy open a little manually.

The other stuff will be nice when it gets added, but a good tune is all I care about right now :)

I'm sure my setup will take a lil work, and probably still won't have perfect street manners, but I can live with that :biggthumpup: I have a very loose definition of "streetable" LOL

[timmydatoolman]

I see alot of talk about the SCT tuner, how many of us are getting ready to buy one? Is there any chance of getting group buy together?

[grapejuice1998]

Hey everybody. I was asked to stop in and answer some SCT questions. Ask away and I'll see what I can answer.

A question has come up and hopefully you can help.

If you bought a PRP and you loaded the software onto a laptop, BUT, that's all you ever did. The hand held tuner was never hooked up. Can that package be sold and used by someone else, or does it have to have a new security dongle?

[bad360rt]

I see alot of talk about the SCT tuner, how many of us are getting ready to buy one? Is there any chance of getting group buy together?

I'm in for a group buy :biggthumpup:

[Five9Dak]

Alan,
Could you consider using this picture instead? The one you currently have takes up just about an entire screen on my lap top. I eliminated some of the blank space for you

http://i14.photobucket.com/albums/a319/black99rt/grpjuice.jpg

[grapejuice1998]

[QUOTE=Five9Dak;5921]Alan,
Could you consider using this picture instead? The one you currently have takes up just about an entire screen on my lap top. I eliminated some of the blank space for you


Sure thing, howzat look?

[X_HAWAII RT]

I see alot of talk about the SCT tuner, how many of us are getting ready to buy one? Is there any chance of getting group buy together?

I'd seriously consider the GB!!!!! Has anyone talked to them about it???

[timmydatoolman]

I'd seriously consider the GB!!!!! Has anyone talked to them about it???


I was going to try but work has been crazy, and it dosen't seem like it will get better anytime soon. I know hemifeaver from bionicdodge, had a group buy before Christmass. I would love to see a GB, but I don't think I'll have time to do anything with it.

[bad360rt]

I was going to try but work has been crazy, and it dosen't seem like it will get better anytime soon. I know hemifeaver from bionicdodge, had a group buy before Christmass. I would love to see a GB, but I don't think I'll have time to do anything with it.

I'm in the same boat (hah!), I'll buy one, but have no time to organize the gb.

[X_HAWAII RT]

I'm in the same boat (hah!), I'll buy one, but have no time to organize the gb.

maybe we hit up Hemifever????

[bad360rt]

maybe we hit up Hemifever????

I sent him a pm. :biggthumpup:

[timmydatoolman]

maybe we hit up Hemifever????


I'll go shoot him a PM right now

[X_HAWAII RT]

well if he goes for the GB we have 3 committed so far!!!:woot::woot::woot:

[geo2slow4u]

I will email him. He might not have email alerts on.

[timmydatoolman]

Its a no go on a GB from Hemifeaver, here is what he had to say:
"get so screwed on group buys. lol. I did a gb to get the tuners out there a while back and charged $499 + s/h which was $515. Now I charge $569 shipped n/a and $599 f/i. After this month it goes up to $599 for n/a engines and $639 for f/i. I've got at least 10 hours in a dudes f/i tune getting his pcm controlling the blower mgmt. If I didn't have to put so much of my personal time in writing the tunes I'd do one in a heart beat."

Any one else have nay ideas or contacts?

[mtlcafan79]

I don't think you have any other options other than getting a PRP for $1k from SCT and paying a local $hop $everal hour$ of dyno time to get it tuned completely. Even at that they may not know the ins and outs of Dodge PCMs.

[LITNGETR]

Its a no go on a GB from Hemifeaver, here is what he had to say:
"get so screwed on group buys. lol. I did a gb to get the tuners out there a while back and charged $499 + s/h which was $515. Now I charge $569 shipped n/a and $599 f/i. After this month it goes up to $599 for n/a engines and $639 for f/i. I've got at least 10 hours in a dudes f/i tune getting his pcm controlling the blower mgmt. If I didn't have to put so much of my personal time in writing the tunes I'd do one in a heart beat."

Any one else have nay ideas or contacts?

After this month it goes to $599. B&G price not GB price.

[Five9Dak]

Sure thing, howzat look?


Looks good, thank you.

[timmydatoolman]

After this month it goes to $599. B&G price not GB price.

thats what he was saying he won't do a group buy.