SCT tunes and Atlas 40 FICM tune - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 07-16-2013, 01:44 PM Thread Starter
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SCT tunes and Atlas 40 FICM tune

I had my FICM done by Ed and the Atlas 40 installed at the same time. I already had my sct tune (Looney Wild) in the ecm. If I want to go back to stock or change tunes, do I need to do anything to the FICM so I don't lose the Atlas 40 tune?
I know the SCT does not tune the FICM, but does it have any effect on it at all? Do I need to pull the relay for it?

I don't want to lose my tune so I figured I would ask before I have an issue.

Thanks,
Sean
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post #2 of 11 Old 07-16-2013, 01:58 PM
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The FICM tune is locked in, you won't lose it when tuning the ECM/TCM with the SCT. You do not need to remove the FICM relay when tuning with the SCT. Your good to go.


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post #3 of 11 Old 07-16-2013, 03:03 PM Thread Starter
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Thanks!

I was reading in another thread that to tune the FICM one would need to pull the relay and I wanted to make sure I didn't erase anything.

Much appreciated,
Sean
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post #4 of 11 Old 07-16-2013, 03:14 PM
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Quote:
Originally Posted by seanol View Post
Thanks!

I was reading in another thread that to tune the FICM one would need to pull the relay and I wanted to make sure I didn't erase anything.

Much appreciated,
Sean
Yes, when you tune the FICM, you need to remove the relay. When you tune the PCM/TCM, you don't need to remove any relays.


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X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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post #5 of 11 Old 07-16-2013, 03:44 PM
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Juts a cautionary note about FICM tuners. With your FICM hard tuned with the Atlas 40 do not buy a PHP FICM tuner to try other tuning levels. Seems as the FICM tuner will load other levels but will not let you "go back to stock". Therefore the PHP FICM tuner is locked and cannot be used on another truck if you sell it. Seems it's just the way the tuner worked at the time from my conversation with Bill. Last I knew this issue still exists but Bill might have fixed it by now.

I'm all for PHP products this is just a FYI if you want higher levels on you hard tuned FICM.


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post #6 of 11 Old 07-17-2013, 10:55 AM
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Those charts on PHP's website are pretty impressive even for just a ficm tune.It really makes that much of a difference to tune the ficm?


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post #7 of 11 Old 07-17-2013, 11:25 AM
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Quote:
Originally Posted by mrenn View Post
Those charts on PHP's website are pretty impressive even for just a ficm tune.It really makes that much of a difference to tune the ficm?
Over stock, yes.

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post #8 of 11 Old 07-17-2013, 11:26 AM
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I had Atlas 40 on my truck before I put the gear head tune on it and it made a noticeable difference. Especially on the low end. Was worth it in my opinion.

My only word of caution is be careful pairing your FICM tune with your SCT tune on a stock truck. It will cause you to get some pretty high EGT. I had this combo before my mods and I believe the high EGT were a major contributor to my ruptured head gaskets. My right foot may have had a little play in it also.

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2006 F250 Crew Cab Short Bed
Harley Davidson Edition # 01592
MODS
ARP Studs
Edge Insight CTS with EGT
IPR Gen2 EGR Delete
Sinister Coolant Filter
MBRP 4" turbo back
PHP Atlas 40 FICM Tune
Gearhead tunes
Rotella Ultra ELC
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post #9 of 11 Old 07-17-2013, 12:31 PM
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Quote:
Originally Posted by Aretoo View Post
I had Atlas 40 on my truck before I put the gear head tune on it and it made a noticeable difference. Especially on the low end. Was worth it in my opinion.

My only word of caution is be careful pairing your FICM tune with your SCT tune on a stock truck. It will cause you to get some pretty high EGT. I had this combo before my mods and I believe the high EGT were a major contributor to my ruptured head gaskets. My right foot may have had a little play in it also.

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I could be wrong here.. But I have yet to hear of high EGTs causing head gasket failure.
I have heard of high EGTs warping turbo vanes and causing valve issues.. but not head gasket failure.


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post #10 of 11 Old 07-17-2013, 01:22 PM
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To be more specific I believe the high EGT and in turn high cylinder temps was one of the leading causes of my heads warping causing my head gaskets to lose their seal. Here is what happened.

I made a run one day where the EGT got in excess of 1500*. It was a long hard run. I started with an aggressive acceleration (not just slamming the pedal to the floor) and held it until about 95 mph. During that time my CTS showed temps in excess of 1500*. The boost never got above 24psi and the "boost gauge" never showed red on the dash. I was running a tune for a non studded truck and Atlas 40. I had been under the hood just a day before and had no puking and no excessive coolant pressure when opened. Approx. 2 days later (normal driving) I opened the hood and found my coolant bottle had puked coolant all over. I did a Blok-Chek and it turned positive immediately. BUSTED!

When I had my truck studded the heads were warped about 8 thousands. Di I think it was just the temps that caused it, No. But I also think that it had a very large part in causing my failure.

NOTE: Just so there is no confusion. I do not hold the tune writer or PHP in any way responsible for my failure. I put them both on my truck knowing that that was a possibility. I have been very happy with both products and now that my truck is studded have them both back on my truck again. I just want to warn people so they do not make the same "mistake" I did. Although I am not sure how much of a mistake it was, I not have a studded truck!

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2006 F250 Crew Cab Short Bed
Harley Davidson Edition # 01592
MODS
ARP Studs
Edge Insight CTS with EGT
IPR Gen2 EGR Delete
Sinister Coolant Filter
MBRP 4" turbo back
PHP Atlas 40 FICM Tune
Gearhead tunes
Rotella Ultra ELC
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