JDGPULLER

I know humidity has a great deal to do with numbers but i don't think it should cause the 2400 drop off. there should also be some smoke at the upper end.

did you go to Wayne's dyno day ( I think it was in May and it rained ) thats were I noticed my problem.

the truck dynoed at 496HP and that was low, then after the drive home we put it on the dyno and it had dropped to 375HP. after checking the compression we had some low cylinders and pulled the head. Seth at Innovative Cylinder head did up a quick head job with O-rings and now we have the new numbers.

Ph4tty

No I didn't make it to Wayne's =\ Most dyno sheets I've seen peak somewhere in the 2200-2800 and power falls off in the upper rpms, so I don't think the graph looks unusual at all- but I'm a real know nothing in the diesel world

JDGPULLER

I will just take your word on that one!

do you go to any of the truck pulls in VA?

kaffine krazed

I have seen where an edge box that didn't have a good ground caused the ECM to read a faster MPH than the truck was going. It caused the truck to defuel around 85 MPH the ECM was reading 112 MPH. The PCM and speedo read correctly only the ECM read high.

Ph4tty

I went to a couple this year including Chris Stamey's last pull.

JDGPULLER

not sure on this could be something though, I know the exciter ring on the rear diff is on crooked and at 70MPH the ABS and Brake light come on. It has been like this for a long time though,

I would like to come up there and pull with Chris and you guys some this next season, I have a Baby on the way and life will be a little different though so not sure how much pulling we will be doing.

JDGPULLER

did Chris break the rear diff twice? I know he broke a axle shaft also.

mysterync

Im not running a cam yet but i still fuel to 3400 + ...... Call Olee Poole! Im curious to see your numbers with the truck right and a cam! A cam and twins is next for me... ill keep the single to play with!

JDGPULLER

I would go twins but I am certain they would disqualify me were we pull, They hate to see a ford get beat there and when they outlawed nitrous and propane the fords cant even get in the top 3.

mysterync

hahahaha FERDS! Just on the street i havent had anything but a supercharged 383 LC SS 2001 camaro touch this truck.... to be honest he took the paint off and kept going but he's a friend!
Im thinking of pulling with this truck but i wana go double disc and a diffrent tranny!

Ph4tty

Yeah I think it was a pinion the first time and a spider gear the second. Something like that. His second pull he made third even though he forgot to turn his comp up