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#1
07-10-2011, 10:19 PM
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Lousy dyno numbers
I put my 06 F250 on the dyno at the Bloomsburg, PA truck show this weekend and the numbers have me a little confused and dissapointed. First run put down 382hp 741tq and second run was 357hp 642tq. It seemed to be losing fuel at the top end but I dont understand why. I have the following mods running on 37x13.50 Toyos.
SCT X3 Innovative Race tune Swamps 58v mild tune ficm RCD full EGR delete RCD 205cc injectors ARP studs Air Dog 150 regulated return Bully Dog rapid flow intake w/ CFM+ 5" to 7" stacks custom built stage 5 transmission Do those numbers seem right for the mods done? I understand the tires rob a goo bit of power but I was hoping for 450+hp and around 900-1000tq. If anyone could help out I'd greatly appreciate it. 
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#2
07-10-2011, 11:17 PM
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Re: Lousy dyno numbers
These numbers are SAE 90.42* 29.66 in-Hg 34% humidity
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#3
07-10-2011, 11:21 PM
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Re: Lousy dyno numbers
Stock turbo? I'm not a big 6.0 guy (Like them, but don't know much about them). Were you losing fuel pressure on the top end?
__________________
96 F350 zf-5, Rosewoods, 6637, mbrp, southbend, autometer, Rough Country. SOLD 08 f250 auto, dpf/egr delete, afe intake, Gearhead tunes  :, cold side pipe and cfm+ intake elbow.
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#4
07-10-2011, 11:30 PM
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Re: Lousy dyno numbers
Yes still running the stock turbo. Not sure about what fuel pressure was like but you could hear the exhaust breaking up a bit in the top end.
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#5
07-10-2011, 11:42 PM
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Re: Lousy dyno numbers
turbo is probably holding you back...how many rpms where you turnin at the top? could have been hitting the rev limiter some...what was your fuel pressure reading?
__________________
04 CCSB Lariat, 4x4, studded & deleted(Elite), Garrett stage 1(DI), Innovative tunes, DS coolant filter, FS2500, Banks intercooled, 17x9 MT classicII's, Nittos, trans rebuilt by me, B&M shift kit, billet converter...sold 04 F450 RC studded & deleted(FCDP), alum. wheels, pulls the gn. 05 build in progress... 
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#6
07-11-2011, 12:14 AM
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Re: Lousy dyno numbers
Not sure on the fuel pressure reading. Running about 3000rpm at the top but the torque lines are super jumpy for some reason.
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#7
07-11-2011, 12:17 AM
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Re: Lousy dyno numbers
Get a fuel pressure gauge asap. Was it fueling hard? Smoke? Check fuel filters. You should be 450+ for sure. Does it drive abnormally? All boost tubes connected? Did it make boost ? Regulated return regulator showing pressure?
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#8
07-11-2011, 01:22 AM
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Re: Lousy dyno numbers
you definitly should be at the 500hp mark with the mods you have. I've heard of guys making nearly 500hp with stock turbo, 190cc injectors and supporting mods. The way the HP numbers were jumping around...seems like the dyno operator didn't know how to operator the dyno maybe.
__________________
2004 F-350 SC 4x4 6L....little bit of this...little bit of that
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#9
07-11-2011, 01:31 AM
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Re: Lousy dyno numbers
i'd say dyno operator error for sure. you should definitely be north of 470 i'd think. check all your CAC tubes and get a fp reading.
__________________
2005 CC FX4...compounds and everything else that goes with em.
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#10
07-11-2011, 01:48 AM
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Re: Lousy dyno numbers
Should have been way north of that.
__________________
06 f250 cc Lariat 4 inch Turbo Back EGR Delete by FCDP SCT w/Gearhead tunes Lowered 3 Inches ARPs Powermax Warren Diesel 205/100s Fluidampr Coolant bypass filter AFE stg2 intake Built at Tranny GoGo Direct Solenoid 6.4 Banjos AD II CTS Monitor GS Elite Gauges Zex Nitrous
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