For those of you that have dyno'd....

[BushWakr - RIP]

For those of you that have had the chance to run on a dyno, I'd like you to look at your sheets and post the following... .



Onset RPM of the steep rise in HP...

RPM band that remains relatively flat... .

RPM were you made your max HP...



Jump in here guys... .





pb... .

 

[swankmetal]

how bout this? whats on your mind, pb? that dip isn't there any more either. that was my wastegate opening to early. i don't know if that has changed the peak #'s though.

 

[CAROLINA CUMMINS]

Hi,



My HP curve is really flat, it doesn't really have a steep rise. It comes up from 100 hp to 200hp between 15-1900 rpms and remains above 200 hp until 2650 rpms. Max Hp - 233 at about 23-2500 rpms.



Steve

 

[bgilbert]

Irp 05

My most recent. Also depends on where the dyno operator begins the run too. If you got a sluggish, hx50 equipped rig with low power, it may have to run way up to 3 grand to start some spool of the turbo if any, then he'll start the dyno recording.

 

[bgilbert]

Scheids 04 243 hp 583ftlb

At Scheids last year, both on Dave Dunbars dynojet. This is with stock, baby h1c, non-intercooled and POD's, stock/dead LP and inj pump. Note the difference the 3200 gov spring makes how it fuels/ makes power to 3200 vs. the stock spring 2700 or so.

 

[glhs]

Elevation; 5400 ft

Turbo; PDR HX35/16 5 spd. 3. 54 gears 265/75/16s Runs in 5th gear

Onset; 1750 rpm. That's when I started the runs.

HP flat from 70mph (1900 rpm) to 104mph (3200 rpm) No gov. spring yet!

Peak hp on both dynos was at 83 mph (2500 rpm) Mustang uncorrected 335hp/Dynojet corrected 425 hp

Peak torque; 72 mph (2000 rpm) 750 and 945 torque



Kurt

 

[hdm48]

Bob,

I wonder if Piers would still have my old dyno sheet. It's under my name (Dave Miller) and feel free to check/post it.



Okee Dokee?





Dave

 

[BushWakr - RIP]

Hey thanks guys I'm just doing a little research here... . hey Dave, GTSU bud... now that you mention it your dyno run may still be saved on the computer... . I'll look next chance I get... thanks



pb...

 

[swankmetal]

what kind of research, pb?



inquiring young minds want to know.



dave

 

[glhs]

Pastor,

You gotta post yours too!

Kurt

 

[Moab4x4]

Continuing Research = Knowledge Bank

I would like to see lots of Dyno results to help us all understand what combinations of the "standard" upgrades can do for us 1st genners.

92 W350, Getrag, 3. 54 gears, PDR Cam, POD's, HTT Stage II, Pump tweaked, 3200 gsk, 1/8" advance, 4" Exhaust.
Tested at 4600 feet elevation, 75 degrees, in 4th gear on Mustang Dyno.
Uncorrected 191 HP, 472 Torque;

The first run is with the Valet Switch OFF.

 

[Moab4x4]

BHAF or Stock 93 airbox?

The second and third runs overlay and are almost identical (4 ft lbs difference). In my situation I see no benefit from BHAF over stock air filter.
Both runs are uncorrected on a Mustang Dyno at Gillett Diesel in SLC, UT.
257 HP 636 Ft lbs uncorrected

At what power level does the BHAF start to make a difference?

BTW, Dyno shop guys were not used to 1st gen performance. Old ugly truck dropped a few jaws with my moderate power levels. They were expecting 130-150HP and couldn't remember seeing a 1st gen over 215 :-laf Oo.
Made my day!!

 

[Greenleaf]

ROFLMAO



257 @ 636 :-laf



Next thing we will be hearing the VP-44 and Common Rail guys converting to the VE pump

 

[DanaLittle]

Here's mine. Stock auto. Mod's in sig. #ad

 

[wwjdcars]

my dyno on meth

this was with the old transmission, will dyno again with new transmission

 

[DBF]

This is the Old Gray Mule's work on Dunbar's roving rig. On the first run, we forgot & left the emergency brake on - ignore that one (green).

I like the way it pulls all the way up to 3500rpm. I don't do *that* very often.

Oh, and this is before doing the 4" exhaust. Should be a little more now.

Regards DBF

 

[JLEONARD]

So the E brake only kills about 100 hp? LOL:-laf



Nice numbers DBF

 

[DBF]

I might have known you would be the first one to spot that & analyze it.



We always knew a Cummins could pull right through a full-on hand-brake; now we can measure it and track it. We could even do comparisons between different emergency brake setups.



Maybe that's going a little far, though... .



Regards, DBF

 

[Moab4x4]

Ebrake

Yes, but you must admit that the drag loading it down brought the fueling (and HP) up sooner.

 

[JSchlachta]

here are my runs from the last three years