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12-29-2010, 06:03 PM
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#41
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Name: Cnp22
Title: Too Much Time
Status: Not Here
Join Date: Sep 2009
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Posts: 272
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Quote:
Originally Posted by OrangeNV
for a 66 that sounds great, but you can always adjust the preboost a 1/4 turn this way or that way to make it better, never know unless you test it
thats why i have a flex shaft hooked up to my pre boo st so i can give it a small turn up or down to make the fueling perfect due to weather changes
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Iv been tinkering with it for a few days now and that's about the best it will get.
__________________
1995 12v RCLB lowered 4x4 manual valve body auto #wanaberacetruck
2007 tbss grocery getter...
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12-29-2010, 07:37 PM
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#42
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Name: BgBlDodge
Title: Hates hippies
Status: Not Here
Join Date: May 2007
Location: Buda, Tx
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Posts: 16,647
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Quote:
Originally Posted by Forrest Nearing
take the AFC foot out and see what it does
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That's what I figured but thought I'd ask.
__________________
2003 Nissan 350z Touring 6mt
2000 4runner Limited
Tyler Williams
We have become educated beyond our intelligence. -Jerry Clower
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12-30-2010, 11:56 AM
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#43
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Name: Smokem
Title: Turbler
Status: Not Here
Join Date: May 2006
Location: Iowa
Member`s Gallery
Posts: 5,565
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In your situation Tyler, I would stretch a stock 215hp AFC spring to get ~ 45psi open pressure, try it. Then take a stock 180/215hp governor spring and try it, use which one works better in your opinion.
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12-30-2010, 12:20 PM
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#44
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Name: BgBlDodge
Title: Hates hippies
Status: Not Here
Join Date: May 2007
Location: Buda, Tx
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Posts: 16,647
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That's what I was planning on doing Weston. Just gotta find time.
__________________
2003 Nissan 350z Touring 6mt
2000 4runner Limited
Tyler Williams
We have become educated beyond our intelligence. -Jerry Clower
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12-30-2010, 04:36 PM
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#45
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Name: npe3484
Title: I hate ATF
Status: Not Here
Join Date: May 2009
Location: Suffolk, VA
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Posts: 792
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Quote:
Originally Posted by Forrest Nearing
take the AFC foot out and see what it does
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Thanks. I was wondering that as well.
__________________
`03 4x4 QCSB - 8" on 37's, Engine and 48RE built by TRE Diesel, TaterBuilt 67/67, FirePunk tuning, 50hp Bosch injectors
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12-31-2010, 02:22 PM
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#46
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Name: sjholt
Title: Rookie
Status: Not Here
Join Date: Jul 2008
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Posts: 7
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Can that AFC lever adjustment be a fine adjustment of the AFC to alter the off idle fueling curve some on a stocker?
TIA
Skip
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12-31-2010, 02:30 PM
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#47
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Name: Scooter's Roofing
Title: Too Much Time
Status: Not Here
Join Date: Oct 2006
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Posts: 17,007
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Quote:
Originally Posted by sjholt
Can that AFC lever adjustment be a fine adjustment of the AFC to alter the off idle fueling curve some on a stocker?
TIA
Skip
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the pre-boost screw is a much easier/fine tuning adjustment than lowering/raising the AFC lever
__________________
that's pretty much all of it
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12-31-2010, 03:06 PM
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#48
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Name: G1625S
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Kirkwood, NY
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Posts: 340
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After looking at the pics on page one of this thread, I think I have an aftermarket AFC spring. It is the exact same height as a stock 215 pump governor spring and quite soft. I swapped the gov spring in just now....that was a mistake! Looking at the opening pressure now I see why. So, I imagine a gov spring like I'm trying would only make sense in a much higher hp/boost truck than mine, right? Without the no-boost screw cranked right in, the charger wouldn't even light.
__________________
f350 sitting in shop on blocks
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12-31-2010, 03:11 PM
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#49
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Name: G1625S
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Kirkwood, NY
Member`s Gallery
Posts: 340
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Another quick question that seems thread-appropriate. Sadly, I have a '0' plate. Due to my stock afc, with the plate any more than 1/2 forward, the governor lever doesn't ever touch the plate, right? Or does the governor arm go up above the afc arm and contact the plate that way? Still trying to wrap my brain around what goes on in there as rpms and boost come up. Here's a pic showing that if the plate were slid anymore forward, the afc arm would be the limiting factor, rendering the plate useless...unless I'm missing something....
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f350 sitting in shop on blocks
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12-31-2010, 03:26 PM
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#50
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Name: WAYNES WORLD
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Location: Justice, Il.
Member`s Gallery
Posts: 413
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Quote:
Originally Posted by G1625S
Another quick question that seems thread-appropriate. Sadly, I have a '0' plate. Due to my stock afc, with the plate any more than 1/2 forward, the governor lever doesn't ever touch the plate, right? Or does the governor arm go up above the afc arm and contact the plate that way? Still trying to wrap my brain around what goes on in there as rpms and boost come up. Here's a pic showing that if the plate were slid anymore forward, the afc arm would be the limiting factor, rendering the plate useless...unless I'm missing something....
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Bump to see this answer.
WAYNES WORLD
__________________
I2v, SD twins, marine pistons, hamilton cam, Farrell tuned pump 13mm, my plate, 24*, Goerend trans, VB & TD con, Cal trac, painted & coated engine, nice leather, -- Now a Lil Pete body
2008 6.7 just added EFI Live & RevMax complete with Goerend Triple, Flex plate
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12-31-2010, 04:17 PM
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#51
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Name: Tate
Title: What?
Status: Not Here
Join Date: Nov 2007
Location: Airdrie, Alberta
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Posts: 3,419
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The AFC foot will move forward, so the face the gov arm hits will be behind the plate, depending upon housing placement and how deep the plate is. If its a deep cut plate and the housing is all the way to the rear, you may never actually contact the plate.
__________________
'98 3500 2wd, 24v, 5 spd, p-pumped
'98 2500 4wd, 12v, 6 spd, VP'd
'02 VW Jetta, 5 spd.
My p-pump conversion pics
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12-31-2010, 04:48 PM
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#52
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Name: G1625S
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Kirkwood, NY
Member`s Gallery
Posts: 340
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Yeah, that's what I was thinking. In the picture, the afc arm is all the way forward with no spring installed. The plate is set in what I would assume to be full forward position, and it's clear to see (I think...) that the plate is several mm farther forward than the AFC foot, rendering the plate useless. I'm not trying to point out anything new here, just wanted to see for myself on the bench what actually goes on. Apparently a stock afc with a 0 plate means you might as well toss the plate. For me, I've already got more fuel than I can use, so it's not worth grinding for max rack travel anyway. I'm used to tuning on VE's, so this is a new game for me...the afc is mucho important for a street driven truck, imo.
__________________
f350 sitting in shop on blocks
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12-31-2010, 05:16 PM
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#53
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Name: Tate
Title: What?
Status: Not Here
Join Date: Nov 2007
Location: Airdrie, Alberta
Member`s Gallery
Posts: 3,419
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In the example above, your plate would be full forward, and you housing is full rearward. If you moved each closer to the middle, you'd bring the plate back into play.
__________________
'98 3500 2wd, 24v, 5 spd, p-pumped
'98 2500 4wd, 12v, 6 spd, VP'd
'02 VW Jetta, 5 spd.
My p-pump conversion pics
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12-31-2010, 05:40 PM
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#54
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Name: Scooter's Roofing
Title: Too Much Time
Status: Not Here
Join Date: Oct 2006
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Posts: 17,007
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a plate is only necessary if you're trying to limit fuel
__________________
that's pretty much all of it
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12-31-2010, 06:13 PM
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#55
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Name: G1625S
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Kirkwood, NY
Member`s Gallery
Posts: 340
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Ok, now I see how afc placement on the pump would change the relationship of the afc arm and the plate...never gave that a thought. Still, it seems like the amount of forward/backward travel of the afc couldn't make up for that big of a gap in the pic, but maybe it could. This is all moot for me, though, as I've said, I can't use he fuel I've got. Just talking out loud and trying to learn. I've got my plate just back from center now. With the smoke screw in too far (will billow from idle if I mash it) I still can't light the charger with the gov spring in, starwheel loose. Should I go back to the old spring (of unknown origin) or keep messing with the AFC? Housing is about 3/4 forward.
__________________
f350 sitting in shop on blocks
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01-02-2011, 11:14 PM
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#56
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Name: straight 6 roar
Title: Too Much Time
Status: Not Here
Join Date: Nov 2010
Location: Oahu, Hawaii
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Posts: 1,031
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How come fuel plates have jagged edges? I don't understand why they wouldn't be smooth gradual slopes and rounds.
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01-03-2011, 07:15 AM
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#57
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Name: G1625S
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Kirkwood, NY
Member`s Gallery
Posts: 340
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Quote:
Originally Posted by straight 6 roar
How come fuel plates have jagged edges? I don't understand why they wouldn't be smooth gradual slopes and rounds.
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Always wondered that myself.
__________________
f350 sitting in shop on blocks
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01-04-2011, 12:24 PM
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#58
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Name: WAYNES WORLD
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Location: Justice, Il.
Member`s Gallery
Posts: 413
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AFC simplified
Guys,
That is for the shift points in the gear changes to be more fuel efficient.
WAYNES WORLD
__________________
I2v, SD twins, marine pistons, hamilton cam, Farrell tuned pump 13mm, my plate, 24*, Goerend trans, VB & TD con, Cal trac, painted & coated engine, nice leather, -- Now a Lil Pete body
2008 6.7 just added EFI Live & RevMax complete with Goerend Triple, Flex plate
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01-04-2011, 12:27 PM
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#59
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Name: OrangeNV
Title: BISH please
Status: Not Here
Join Date: Apr 2010
Location: Pittsburgh
Member`s Gallery
Posts: 5,043
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Quote:
Originally Posted by WAYNES WORLD
Guys,
That is for the shift points in the gear changes to be more fuel efficient.
WAYNES WORLD
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what does a plate for a manual truck look like then?
__________________
Diesel Ron
SteamFitters local 449
Quote:
Originally Posted by roachie
Nothing is quite as exciting as bare-backing a ginger crack wh0re that is famous.
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MUMAU
RAM BOYZ
KEYSTONE
MANNING
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01-04-2011, 01:32 PM
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#60
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Name: jaybuller
Title: USCG MK
Status: Not Here
Join Date: Mar 2009
Location: Traverse city, MI
Member`s Gallery
Posts: 1,446
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Same
__________________
1997 4x4 5 speed 12v sold
2002 f250 7.3 sold then totaled
1995 2wd auto 12v sold
1997 4x4 auto 12v sold.....
1989 K5 Blazer 4x4. ppumped 4bt cummins/nv4500sold
2001 X 4x4 7.3 stroker
05 2wd 1500 ram..12v 4500 4x4 swap underway
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