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04-03-2011, 10:46 PM
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#101
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Name: Smoken Gun
Title: Diaboli parum adiutor.
Status: Not Here
Join Date: Nov 2010
Location: Michigan
Member`s Gallery
Posts: 3,200
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Quote:
Originally Posted by White Knight
Here's a quote from another thread that explains it a little (edited slightly for focus):
So basically:
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Thanks, appreciate that!!
__________________
'18 Ram 3500 Cummins Aisin Laramie Mega. Sold.
'97 Dodge Ram 2500 Cummins Auto Laramie. Sold.
'03 Ford F-250 6.0L Auto. Sold.
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04-03-2011, 11:44 PM
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#102
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Name: straight 6 roar
Title: Too Much Time
Status: Not Here
Join Date: Nov 2010
Location: Oahu, Hawaii
Member`s Gallery
Posts: 1,031
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Interesting findings today:
Pressure tested my AFC today for the hell of it, shocked to see with the starwheel halfway in the plug it was coil binding before full travel. This was with 40 psi and stock spring. To get full travel I had to loosen it til it was near the edge of the plug. Truck smokes like crazy so I'm probably gonna opt for the TST heavy spring. Thoughts?
__________________
2006 QCSB 2500 4x4 67/83/.90, +60% overs, TRE trans
1998 QCSB 2500 12 valve 4x4 Sold and missed
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04-04-2011, 04:57 AM
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#103
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Name: Mo Smoke
Title: It's 5 O'Clock Somewhere
Status: Not Here
Join Date: Dec 2006
Location: Here Most of the Time
Member`s Gallery
Posts: 1,639
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I tried to heat a gov spring and stretch it and now it lost its spring properties and now is mush. Oh well anybody have stock gov springs they want to get rid of?
__________________
2000 F-250 DESTROKED... 12v
Destroked Parts For Sale
Pulling Videos
PCS 4R100 Techie
Destroked Dealer
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04-04-2011, 09:10 AM
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#104
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Name: bsmith
Title: Never enough
Status: Not Here
Join Date: Jul 2008
Location: la
Member`s Gallery
Posts: 3,966
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Quote:
Originally Posted by straight 6 roar
Interesting findings today:
Pressure tested my AFC today for the hell of it, shocked to see with the starwheel halfway in the plug it was coil binding before full travel. This was with 40 psi and stock spring. To get full travel I had to loosen it til it was near the edge of the plug. Truck smokes like crazy so I'm probably gonna opt for the TST heavy spring. Thoughts?
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Just put your plate in and slide it back.
__________________
RIP DEX
2001 2500 2wd
Diesel pro's cam
Walbro 392
Goff diesel injection
160hp pump
6x.013's by Weston
HTT 62/71/13 over FI 82/92/1.10
Levi's turbo blankets!
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04-04-2011, 06:43 PM
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#105
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Name: straight 6 roar
Title: Too Much Time
Status: Not Here
Join Date: Nov 2010
Location: Oahu, Hawaii
Member`s Gallery
Posts: 1,031
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Quote:
Originally Posted by bsmith
Just put your plate in and slide it back.
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No it smokes way too easy building boost because I had to back off the spring preload(starwheel) so it wouldn't coil bind.
__________________
2006 QCSB 2500 4x4 67/83/.90, +60% overs, TRE trans
1998 QCSB 2500 12 valve 4x4 Sold and missed
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04-04-2011, 08:33 PM
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#106
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Name: bsmith
Title: Never enough
Status: Not Here
Join Date: Jul 2008
Location: la
Member`s Gallery
Posts: 3,966
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Quote:
Originally Posted by straight 6 roar
No it smokes way too easy building boost because I had to back off the spring preload(starwheel) so it wouldn't coil bind.
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Plate is for full fuel. You want the starwheel all the way back. Your hx40 isn't enough for anything.
__________________
RIP DEX
2001 2500 2wd
Diesel pro's cam
Walbro 392
Goff diesel injection
160hp pump
6x.013's by Weston
HTT 62/71/13 over FI 82/92/1.10
Levi's turbo blankets!
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04-04-2011, 08:41 PM
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#107
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Name: Bustedknuckles
Title: Honey Badger
Status: Not Here
Join Date: Jul 2009
Location: Hagerstown, MD
Member`s Gallery
Posts: 1,778
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Quote:
Originally Posted by Mo Smoke
I tried to heat a gov spring and stretch it and now it lost its spring properties and now is mush. Oh well anybody have stock gov springs they want to get rid of?
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Ummm, not sure what else you expected to happen. They're tempered btw. Lol ,Yea I have a set out of a '96. What ya give me for them?
__________________
2004 Lb7: 06 front clip, Idaho-Rob tunes , PPE trans, ML converter, Airdog, ARP head studs, s366.
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04-05-2011, 05:01 AM
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#108
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Name: Mo Smoke
Title: It's 5 O'Clock Somewhere
Status: Not Here
Join Date: Dec 2006
Location: Here Most of the Time
Member`s Gallery
Posts: 1,639
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Pm me,
What is the opening pressure and full travel pressure when in the AFC
Tim
__________________
2000 F-250 DESTROKED... 12v
Destroked Parts For Sale
Pulling Videos
PCS 4R100 Techie
Destroked Dealer
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05-18-2011, 08:11 AM
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#109
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Name: NickTF
Title: Single turbo turd.
Status: Not Here
Join Date: Jun 2007
Location: Laurel, DE
Member`s Gallery
Posts: 5,887
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Guys, have any of you measured full travel stroke of the afc foot before and after the mods? I measured 14-14.6mm of travel last night on my modified afc. Also measured full travel around 50psi with the governor spring as verified with the regulator gauge on my air compressor with the AFC lever set in the farthest down into the pump position (with the slotted shaft on the front of the afc turned full clockwise).
The spring I have in my AFC most resembles the "60 psi spring" shown on the first page by Weston.
__________________
97 12v sold. 2015 Power Wagon DD!
Last edited by NickTF; 05-18-2011 at 08:12 AM.
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05-18-2011, 08:52 AM
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#110
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Name: Diesel Nut
Title: 6 Speed 12V
Status: Not Here
Join Date: May 2006
Location: Herald, CA
Member`s Gallery
Posts: 212
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I actually had mine off over the weekend to play with it, I found 14.5-15mm of travel on my modded one as well. Funny I was actually going to ask how much travel others are getting........
I had the TST light spring in and it smoked way too much. Found the AFC would move like 2-3mm @2lbs of boost, was half travel by 9 and full travel by 18.
With the TST medium spring its a whole new beast. Full travel is 24lbs of boost, considerably less smoke, more responsive, much slower egt rise, feels much better.
I'll have to go back to the drawing board when I get the twins built.......
__________________
94 Reg Cab LB 4X4 NV5600 - Mild motor build, Carli Dominator kit, parted out............long story
97 ECLB 4x4 3500 - Interesting plan for this one........
05 QCSB 4x4 Auto - Horse Hauler
2003 F250 CCSB 7.3L 4x4 (wifes)
Amsoil Dealer
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05-18-2011, 09:29 AM
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#111
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Name: copenglenn
Title: It's beer 30
Status: Not Here
Join Date: Feb 2009
Location: E. Kansas
Member`s Gallery
Posts: 568
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I've been messing around with some different springs from the local hardware store, but I can't seem to find one I like. Quite a few of them have too many coils and the spring is in a bind before it gets to full travel. I'm actually running a combination of 2 springs now, A TST heavy and the other that gives me full travel around 40 psi. The local Fastenal has some springs that I'm going to mess around with and see if I can't find something I like.
__________________
04 LLY, MGD 45 overs, Aeromotive 160, EFI, ARP's, Southbend sintered iron
02 24V Aeromotive 160, Contagious 7x.011, comp box, and some Suncoast goodies
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05-18-2011, 08:01 PM
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#112
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Name: 94cumminsboyy
Title: Rookie
Status: Not Here
Join Date: May 2011
Member`s Gallery
Posts: 21
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when you want ure truck to be fatster should oyu move the level up or down and how much should u crank starwheel and which way cause i wanna adjust mine and make a lil more power
__________________
1994 Dodge 2500 CTD..ALL STOCK...5 Spd(4speed w/ granny)..SILENCER RING M.I.A..4" turbo back w/ 6" tip...NEED MORE MODS
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05-18-2011, 08:03 PM
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#113
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Name: 94cumminsboyy
Title: Rookie
Status: Not Here
Join Date: May 2011
Member`s Gallery
Posts: 21
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how much should you adjust all of these to make your truck have more power.. is there a post on it
__________________
1994 Dodge 2500 CTD..ALL STOCK...5 Spd(4speed w/ granny)..SILENCER RING M.I.A..4" turbo back w/ 6" tip...NEED MORE MODS
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05-18-2011, 08:26 PM
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#114
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Name: BgBlDodge
Title: Hates hippies
Status: Not Here
Join Date: May 2007
Location: Buda, Tx
Member`s Gallery
Posts: 16,647
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Search modded AFC and plate adjustments. All the info you could want.
__________________
2003 Nissan 350z Touring 6mt
2000 4runner Limited
Tyler Williams
We have become educated beyond our intelligence. -Jerry Clower
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05-18-2011, 10:44 PM
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#115
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Name: 97rada
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Member`s Gallery
Posts: 5,410
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great write up
__________________
Austin
tow truck- 14-3500 with tuning
toy truck -94 rclb auto- 5.2x with a lot left. Shooting for 4s
Any intelligent fool can make things bigger and more complex...it takes a touch of genius- and alot of courage to move in the opposite direction.
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05-19-2011, 09:54 AM
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#116
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Name: copenglenn
Title: It's beer 30
Status: Not Here
Join Date: Feb 2009
Location: E. Kansas
Member`s Gallery
Posts: 568
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Quote:
Originally Posted by 94cumminsboyy
how much should you adjust all of these to make your truck have more power.. is there a post on it
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I suggest setting up your AFC on the bench with shop air so you get full travel at the psi you want. Then you can adjust the preboost screw to gain the low end fuel you want.
__________________
04 LLY, MGD 45 overs, Aeromotive 160, EFI, ARP's, Southbend sintered iron
02 24V Aeromotive 160, Contagious 7x.011, comp box, and some Suncoast goodies
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05-19-2011, 04:12 PM
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#117
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Name: muz
Title: Diesel Enthusiast
Status: Not Here
Join Date: Feb 2009
Location: Hampshire U.K
Member`s Gallery
Posts: 174
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I've been playing with springs forever! with my setup the stock 180 spring heated and stretched to 38mm long works the best. I just used a pencil blow lamp in a couple of places whilst the spring was pushed over a deep socket, clamped to it at 1 end with vice grips, then just pulled the other end with pliers worked great!
__________________
97 x-cab LB 4x4 goerend, DHD, gsk, #10 plate, gauges, 05 rims, 4" pipe AFE, II 62/71/14, ARP studs, fluidampr, 5x14's, mack plug...
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06-10-2011, 08:11 PM
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#118
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Name: 2141pete
Title: Hell I dont know
Status: Not Here
Join Date: Oct 2007
Location: Camp Pendleton, CA
Member`s Gallery
Posts: 3,268
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__________________
2018 Ram 2500 4x4
Last edited by 2141pete; 06-10-2011 at 08:16 PM.
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