Getting a 6.4 - Ford Powerstroke Diesel Forum

6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 15 Old 06-01-2010, 09:31 PM Thread Starter
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Getting a 6.4

I think iam going to trade my 05 F250 in for a 08 F250 6.4, just wanted to get those guys advice with whom have them. How do you like them? are they worth it? How reliable are they?...Of course performance wise what do you guys recommend as far as that i read alot about spartans tuning. Do you have to do anything like headstuds when going with spartans tuning ive seen 345hp tune can you run that on stock motor or are you asking for trouble? Thanks

2008 F350 4x4 Lariat CC SB 6.4 twin turbo diesel

Mods
Passenger side 3" MBRP intercooler pipe
S&B Cold air intake
CAT/DPF delete
SCT live wire IDP 5 tune package
EGR shut down
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post #2 of 15 Old 06-01-2010, 09:51 PM
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Drive pressure is definitely an issue on these trucks. Once the EGR is disabled, the pressure has no where to go. Drive to boost can be 2:1 at times. With the bigger tunes, I don't see a difference in drive. I see 71 psi max with the 250, 275, 310, and 350 tune. It's the tranny that is going to suffer with the Spartan 350 tune. It has taken its toll on numerous stock transmissions already. The 310 seems to be the absolute limit as far as tranny lasting a decent amount of time, and even it will destroy a stock tranny. As far as motor trouble, your always potentially asking for motor trouble when your more than doubling stock horsepower output. Studs would always be a great investment before going with the big tunes. Both Elite and ARP have them available. Elite's are the best though.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #3 of 15 Old 06-02-2010, 03:43 PM Thread Starter
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What do you mean by drive pressure explain what you mean i dont really understand and 2:1 what is 2 to 1? where do you see 71psi at?

2008 F350 4x4 Lariat CC SB 6.4 twin turbo diesel

Mods
Passenger side 3" MBRP intercooler pipe
S&B Cold air intake
CAT/DPF delete
SCT live wire IDP 5 tune package
EGR shut down
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post #4 of 15 Old 06-02-2010, 04:28 PM
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Back pressure/drive pressure.....back pressure to boost ratio can be 2:1 at times, which ain't good. Means that back pressure is double what boost pressure is at a given time/RPM. That is what lifts heads on stock head bolts.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #5 of 15 Old 06-02-2010, 05:31 PM
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I had a 2005 F250 with the typical intake, exhaust, and SCT custom tune, running 400+ HP and 700+ torque. It was a good truck but it had it's problems. Like most 6.0 diesels, I was constantly worried about my head studs and to be safe I went into the engine and welded up my EGR cooler to prevent problems.

I now own a 2010 F350 and have been messing with it for a bit, and the head stud and EGR issue don't seem to be major problems, depending on the amount of power you want to run. If you want 600+ HP then yeah, you will want head studs and to block off the EGR, but if you are like me and doing the exhaust, intake, and tuner then all you need to do is make sure your exhaust is without your CAT or DPF filter and you're good to go.

2010 F350 Lariat 6.4, XLT, FX4

Current upgrades: International emblems, tinted windows, Husky toolbox, window vents, Rhino lined bed

Future upgrades: Cab clearance lights, leveling kit w/ 35's, AFE intake, H&S 5" exhaust, H&S Black Maxx

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post #6 of 15 Old 06-02-2010, 07:28 PM Thread Starter
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now that makes more sense about the back pressure.....yeah if there was a way to do the heads with the cab on and engine in the 6.4 i so would tackle it but the EGR i will probably block off just to be on the safe said.....was it a big difference for you when you went to the 6.0 to the 6.4?

2008 F350 4x4 Lariat CC SB 6.4 twin turbo diesel

Mods
Passenger side 3" MBRP intercooler pipe
S&B Cold air intake
CAT/DPF delete
SCT live wire IDP 5 tune package
EGR shut down
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post #7 of 15 Old 06-02-2010, 07:41 PM
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Don't block off the EGR unless you want to blow head gaskets. Leave it alone. Either do a full delete with a wastegate or leave it alone. The head studs can be done cab on, but it takes just as long...and the gaskets need to be fresh and in excellent condition if you go that route. Better to do it cab off with new gaskets. Cab off isn't as bad as you think, especially if you have the right person doing the job.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #8 of 15 Old 06-02-2010, 08:37 PM
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jeff, if disabling the egr increases the drive pressure why turn it off with the 210 tune that has all the safety features built in? what are the the advantages of turning the egr off with the 210?

08 F250 white/tan King Ranch SOLD

Spartan Tuned, Powerstroker67 5" delete pipe, 5" Magnaflow exhaust with muffler

2011 F150 FX4
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post #9 of 15 Old 06-02-2010, 08:46 PM
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The block of plates are bad because they won't allow anything through. There are two plates. One for the coolers and one for the valve. It seems that pressure increases slightly with the plates in and it allows enough back pressure for puking to occur. I haven't puked in over 14,000 miles on new gaskets and stock head bolts without the plates running the 210 and up tunes everyday......mostly the 275 tune. The issue with allowing the valve to cycle with the higher tunes is the amount of soot being produced. It would really gum up things if all that soot were allowed to cycle back through.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #10 of 15 Old 06-02-2010, 10:05 PM
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You can block the EGR and be fine, it wont apply any back pressure on either motor. On the 6.4 the EGR doesn't appear to be a major issue so i'm leaving mine alone unless she starts to act up on me.

It was a difference, and yeah probably a big one. I feel much more comfortable modding the 6.4 than I do the 6.0, especially since mine is a 2010 and should have most of the bugs worked out of it. Delete the DPF and tune to disable the check engine light and your good to go!

2010 F350 Lariat 6.4, XLT, FX4

Current upgrades: International emblems, tinted windows, Husky toolbox, window vents, Rhino lined bed

Future upgrades: Cab clearance lights, leveling kit w/ 35's, AFE intake, H&S 5" exhaust, H&S Black Maxx

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