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Old 02-07-2019, 01:13 AM   #41 (permalink)
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little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
Last 3: 24.65 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 24 AUTO
Pickups
Team Cummins
90 day: 18.46 mpg (US)

The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4
90 day: 20.24 mpg (US)
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thank you for the mind picking session and the safety gear

I didn't think air could turn that fast!! mind blown!! that explains this:]
Notice
how the snow packed into the high presser areas around the step box pounding out the abrasive corners into nice aero fillets changing the force vectors and pressure grandaunts ,this profile would yield a forward force instead of just down with less space to apply due to boundary air riding over the turbulent air represented by the snow-packed in. The snow on top of the bumper is caressing the pore converging diverging duct formed by the snow packed into the bed/bumper and body shape, filling the low velocity/turbulent zone on its surface making the transition to vertical smother.

there is a light breeze coming from the left at almost a right angle to the road(slightly a head wind ). the tufts on the top hainging over the duck bill as Aerohead calls it look like fish hooks insted if yarn.

Air makes a 270? 180 to go forward and 90 to go strait down the tailgate center, and progressing to outward but still down AND ATTACHED toward the corners of the bumper.

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1st gen cummins 91.5 dodge d250 ,HX35W/12
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 29.3mpg 97mi 3.311usg 7/27/16


Former
'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg


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Old 02-07-2019, 03:04 AM   #42 (permalink)
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Join Date: Dec 2014
Location: Butte, Montana
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little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
Last 3: 24.65 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 24 AUTO
Pickups
Team Cummins
90 day: 18.46 mpg (US)

The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4
90 day: 20.24 mpg (US)
Thanks: 191
Thanked 326 Times in 220 Posts
steped up to an HX35W/12 holset turbo
THIS IS THE STRAW THAT BROKE THE #1 RULE CAMELS BACK
... #1 RULE IN ADDING BOOST TO DIESEL . "YOU MUST ADD FUEL TO INCREASE BOOST THAT IS HOW IT WORKS." EVERY DIESEL SHOP AND PROFESSOR I've SPOKE TO READ ABOUT SENSE 2014. With the exception of Mr Blaylock the creator of the Switchblade. he gets lower lag but not higher max
Same fuel tune from when I got the truck.

H1C/21cm^2 12PSI (naked) 1psi 600 EGT 250-300'
H1C/16 17PSI (full wrap) 1psi 500 150-200'
HX35/12 21PSI (naked) 1psi 375-400 <5'
lag 1 to maxpsi at highway speed
stock 21cm 15sec (1 thousand 1, 1thousand 2....)
H1C/16 6sec
HX35W/12 1sec

65 cruse flat land no wind egt/boost
H1C/21 600/0-1
H1C/16 500/1-2
hx35w/12 500-475/3-4

max reachable EGT
H1C/21 1075
H1CX/16 1000
HX35W/12 900

boost to temp coralation
.......................500..600..700. 800. 900. 1000. 1100
H1C/21............. x ...1 ... 3 .... 5 ... 8 ... 10 . . 12...
H1C/16................1 ..3 .... 5.... 10.....15....17.... x
hx35W/12..........3.....5.....10.....15.....20.....x.... .x

tune the turbo to tune instead of tuning to the turbo.

deciding on the Switchblade .95AR or Diverter Valve T4 .88AR divided with a Borg Warner S361SX-E to S362SX-E. (S360SX is out it is missing the new tech I'm after). both increase velocity /*power in the flow TQ applied to the turbine and progressively open to allow acquitted flow to support more than Aeroheads proposed 300hp target.

-------

300HP @????RPM=TQ @2000RPM

Dream Big Chisel Down To Reality
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1st gen cummins 91.5 dodge d250 ,HX35W/12
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 29.3mpg 97mi 3.311usg 7/27/16


Former
'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg


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Old 02-09-2019, 01:20 PM   #43 (permalink)
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composite body panels

That's a very exciting proposition!
A thousand pound weight-shaving really changes the calculus.
As time permits,I want to isolate some vehicles with this power-to-weight ratio and look at the histograms of their time-to-speed,acceleration profiles.
It would be another way to anticipate performance out on the salt.
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Old 02-20-2019, 05:50 PM   #44 (permalink)
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Join Date: Dec 2014
Location: Butte, Montana
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little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
Last 3: 24.65 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 24 AUTO
Pickups
Team Cummins
90 day: 18.46 mpg (US)

The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4
90 day: 20.24 mpg (US)
Thanks: 191
Thanked 326 Times in 220 Posts
Time to upgrade the transmission
It was rated for 400 foot pounds of torque( Factory stock motor is rated 400) 472 to the tires on the 1-2 shift.with the 16cm housing on the H1C turbo pushing 17psi .(took hafe way through 2nd gearr to max boost) Now I have a HX35W/ 12 hitting 20psi(stock fuel) now only takes ~ hafe way through 1st gear to max . That lasted about 2.5 weeks . The trans wet the bed. 2 days after the new to me turbo, I started hearing a planitary(i think) making a worbling noise very faint. Then 2 weeks later on the return leg of a test trip to Oklahoma city, OK from Greenville, Tx ~100 mi from the house it started grawling. 45mi later it stoped . A mpg query requires minimum of 100 mi (or 4ga witch ever comes last,eg 100mpg = 400mi test) in my book or it is just noise, not data.

Options
Stock46rh is rated for 400TQ(oem trans) 2.44:1 final
Studing has shown me the transmission was at its maximum power holding capability from the factory, the two later versions below are the same for their respective Motors the 3rd gen HO 48reakes 610TQ with all accessories on otherwise the computer derates the motor back to the torque limit of 570
47re/h 450TQ 94-2002 2.44:1
48re 570TQ 2003-2007 2.44:1
Both require sorcing a stock starter , tv cable,and adapror from the respective motor 96mph max
Allison
4 speed 545 drop in with spair parts from a 5.9 Cumins med. duity box van 3.55:1 finale
5speed 1000same + stand alone TCM. 2.66
Both Allisons will need the US gear brownie reconfigured to Overdrive to be able to achieve what I am able accomplish with the Dodge trans.
All can be beefed up to over 1000HP ratingfor a extra cost rebuld.
Coments consurns?
__________________
1st gen cummins 91.5 dodge d250 ,HX35W/12
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 29.3mpg 97mi 3.311usg 7/27/16


Former
'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg



Last edited by gumby79; Yesterday at 06:02 AM.. Reason: Typos and add some info.
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Old 02-20-2019, 06:21 PM   #45 (permalink)
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wet the bed

Quote:
Originally Posted by gumby79 View Post
I am to upgrade the transmission rated for 400 foot pounds of torque( Factory stock motor is rated 400) 472 to the tireson the 1-2 shift.with the 16cm housing on the H1C turbo pushing 17psi. Now I have a HX35W/ 12 hitting 20psi(stock fuel). That lasted about 2.5 weeks . The trans wet the bed. 2 days after the new to me turboI started hearong a planitary(i think) making a worbling noise very faint. Then ~100 mi fromthe house it started grawling. 45mi later it stoped .

Options
47re/h is rated for 45094-2002
48re 570 2003-2007
Both require sorcing a stock starter , tv cable,and adapror from the respective motor 96mph max
Allison
4 speed 545 drop in with spair parts from a 5.9 Cumins med. duity box van 65mph max
5speed 1000same + stand alone TCM. 80mph max.

Coments consurns?
Ouch!!!!!!!!!!!!!!! do you have a way to get around? It's a long walk to Sherman.Keep us apprised.
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Old 02-20-2019, 09:31 PM   #46 (permalink)
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Quote:
Ouch!!!!!!!!!!!!!!!
x2

Not going to Thank a story like that.

I heard a story once about somebody that put a Hemi V8 in front of a 1939 Ford floor-shifter transmission. It never made it from the garage to the driveway.
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Old Yesterday, 05:21 PM   #47 (permalink)
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Location: Fort Worth, Texas
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2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
90 day: 19.36 mpg (US)
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The expense of an automatic is why I’d still choose a manual. New, used or a rebuild.

Can’t remember why you have an auto. I’ve probably asked and you’ve probably replied.

AFAIK, it’s only the later 6-speed Autos that are trouble-free as to normal power-handling. They’re not cheap and probably require computer control.

The G56 Manual has been used in the CTD since about 2007. The NV5600 in mine is well-liked, but now long out of production. A crapshoot on a core plus parts.

My truck is 3.73-geared. With a junkyard axle swap it could be the current 3.42. That’s one long pair of legs.

With 3.42, stock tire height and the .73 OD, 60-mph is a hair above 1,500-rpm on mine with the 5600. Redline is 2,900. Room to grow.

.

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2004.0 DODGE Ram QC/LB 2500 2WD/NV-5600 305/555 ISB. 7,940-lb. Stock. 200,000 miles/5000-hrs @ 40-mph average.
1990 35' Silver Streak TT 7,900-lb.
11-cpm solo & 19-cpm towing; 21-mpg average past 54k-miles
Sold: 1983 Silver Streak 3411

Last edited by slowmover; Yesterday at 05:43 PM..
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