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Roush issues
Hi,New to forum
I Just wanted to add a few items I was experiencing. I purchased a 2006 Roush stage one supercharged FX4 F-150 supercrew.First of all, the vehicle came with different shocks rather than the listed bilsteins advertised with the 2/3 drop kit,I wish Roush would specify this on their website.The second item is My PCM was flashed to a 3.55 gear ratio at 675 revs,Roush had mounted 20"inch BF Goodrich champion baja tires to their rims.The Powertrain Control Module was not recalibrated for these tires which should be calibrated at 644 revs.My vehicle has a 3.73 rear end.Unfortunately my F150 was shifting at 4250 rpm,which is low.A phone call to a Roush revealed,when the dealership sent back the PCM for reflashing,Roush only changes the parameters for the supercharger,a/f and spark.Why is that?They changed the rim and tire size,from the original stock size.Roush also said my truck should shift from 1-2 at 4900 rpm.A trip back to the dealership only confirmed they couldn't reflash the PCM,and they would have to send it back to Roush for recalibration.Does anyone know of an aftermarket tuner or chip I could use for my vehicle??I would like to remove the speed limiter and change the shift points,etc.Any help would be greatly appreciated, thankyou.Im not knocking ROUSH but when you pay for performance,you should be treated accordingly. |
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I have a tuner that will do that, one of the Xcalibrator 2's by SCT. The dealer was able to get a stock roush tunefile (TEM7RSC) of my factory TEM7 computer code through the online database. I can now change any type of transmission shift, rpm, speed limiter, converter lockup, rev limiter and still have the stock roush engine programming.
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-Roush Supercharger BamaChips Tuned -345 hp-365 ft lbs @ the wheels -Magnaflow 16612 SISO -Dual 14" E-fans w/MadEnterprize controller -9.500@73mph in the 1/8th @1200 ft and 70 degrees -Corrected for altitude is 9.38 or 14.72 1/4 mile -A VID of a few 0-90 Runs -Kenwood DDX-7015 w/ KHDC-710 10GB MP3 Keg and reverse camera -True Blue Lincoln LT handles -TB HD lower valence -TB Matched fender flares ![]() CLICK PIC FOR GALLERY! |
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Roush issues
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Roush engineering
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I got it from BamaChips, guy's name is Doug Studdard. http://www.bamachips.com/ . Real nice guy! Just tell him you would like an X2 with stock Roush programming and the ability to change your trans shifts and such with Extreme Tune, or tell him where you want the shifts if you are uncomfortable with doing this yourself.
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-Roush Supercharger BamaChips Tuned -345 hp-365 ft lbs @ the wheels -Magnaflow 16612 SISO -Dual 14" E-fans w/MadEnterprize controller -9.500@73mph in the 1/8th @1200 ft and 70 degrees -Corrected for altitude is 9.38 or 14.72 1/4 mile -A VID of a few 0-90 Runs -Kenwood DDX-7015 w/ KHDC-710 10GB MP3 Keg and reverse camera -True Blue Lincoln LT handles -TB HD lower valence -TB Matched fender flares ![]() CLICK PIC FOR GALLERY! |
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Yes the 20s are 644 rev/mile. But the engine calibration from Ford and also from Roush has a low limit of 650 revs/mile. So 644 cannot be entered. 644 x 3.73= 2402. 675 x 3.55 = 2396. So the # you see is extremely close to the actual # and the PCM will accept both 675 and 3.55, so the speedo is right and the PCM is happy at the same time... the best of both worlds. Roush changes the whole PCM calibration... all of it. The transmission is reprogrammed also. But Roush chose not to increase the factory shift rpm for whatever reason they though was important enough to keep it that way (warranty???). Yes the engine can make more power with more rpm available. Speed limiter = Liability. Roush never claimed to remove it anyway. With the Roush kit, you pay for performance AND a Warranty. Yes there is more performance to be had, if reliability is not important. |
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My opinion
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With all due respect to people who own Roush registered vehicles, Roush prostitutes themselves somewhat to the dealerships so they can make money. Imagine that. They need a distributor. But your point is well made. If I have a problem with my s/c, I'll just bet that you are exactly right, that Roush and my dealership will be pointing fingers at each other.
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2006 Redfire w auto tranny & 3.73 FRPP's Roushcharger w 2.57 pulley Steeda CAI and custom tune Roush 18"wheels and 285/275 Nittos
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Well its been a while since I've been on the site. Guess I need to check in more often. Looks like a few others now have the Supercharger on the 5.4.
I've had mine for over a year now and it just turned 20,000 miles. I"ve had a few issues, but all said and done its been a great truck. I too had my PCM re flashed to remove the top speed Gov., It seemed silly to have a blown truck that toped out at 87 mph. Anyway, I worked with a guy Doug at http://fordspecialists.com/ he downloaded my factory Roush program and then tweaked it for the top speed gov and my tire size increase. Otherwise all things were left per Roush. When summer here in Az rolled around I started having detonation problems at higher RPM just before the truck shifted, I was reluctant to take it back to the dealer, thinking they would prob send the PCM back to Roush and I'd lose the tweaks I'd already paid for. Instead I contacted Doug again at http://fordspecialists.com/ for some assistance. I've got some experience with Turbo charged VW motors in rails and such, and we typically retard\pull 1 degree of timing out for each pound of boost that comes in with an MSD -6 BTM box. Using this seat of the pants logic and Doug's help, we started pulling some timing out of the Ford starting around 1600rpm and having all the retard in by 4000. It took several try's ,with me sending the box back and him pulling a couple more degree's out , downloading and mailing the box back to me. But we finally hit on a solution that seems to be working. I think we ended up with about 7-8 degrees retard from the Roush setting. I have only run the best (highest octane) pump gas available here in the truck from day one. I guess its just a matter of the amount of boost combined with the Az heat thats been the problem. I agree with the above statements about the need for an intercooler, its not an option its damn near mandatory out here. Some may not agree with my method of getting around the detonation problem.I guess I could have downloaded the stock prog and taken it into the dealer. But based on my past experience with dealer service, I just thought I'd give it a shot myself. I'll save my lowered suspension & wheel hop\broken driveshaft yoke story for another post. ![]() Dweez |
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Roush intercooler
I had contacted Roush concerning a intercooler kit for existing Roushchargers,I was told it should be released sometime this year.The new roushchargers are awaiting carb approval for all 50 states,but should be available very soon.The setup looks nice with a water to air intercooler running at 7.5 psi of boost at 145 hp at the flywheel.
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