1stGen.org

THE place for 1st gens

Skip to content

afc spring

How to make it go fast

Moderators: Greenleaf, KTA, BC847, Richie O

Post a reply

afc spring

Postby warhammer92 » Thu Aug 01, 2013 10:25 am

What would changing my afc spring to a stiffer one cause. Would hit help clear up some of my low end smoke.would I see a gain or loss in boost?
I'm still trying to learn so I like asking questions
87 f350 w/ 92 I/c cummins. 64mm,6x16 inj., dual intake,188/208, m4,300cc pump,PS I/c, marine pistons,mild ported head. Fully built a518 with 1800 stall.
warhammer92
fuel screw!!!!
 
Posts: 77
Joined: Tue Jul 02, 2013 4:13 pm
Location: Windsor,Ca
Top

Re: afc spring

Postby BILTIT » Thu Aug 01, 2013 11:09 am

Talk to RCcummins, he sells a stiffer spring and has done some testing.
Derek B.
2003 QuadCab, Tater 62/65 341cw, Smarty Touch SW9, Full Billet trans.
91.5 W250, coolertubz, HE351CW, PS IC, Alcans, GVOD, Valair DD, bags, crossover.
1974 Pontiac Ventura,best of 11.97 at 112 so far.
Aluminum heads and roller cam on the way.
User avatar
BILTIT
14mm rotor
 
Posts: 711
Joined: Wed Aug 11, 2010 1:29 pm
Location: Lloydminster, Saskatchewan
Top

Re: afc spring

Postby RCCUMMINS89 » Thu Aug 01, 2013 11:24 am

A stronger afc spring will slow your fueling down.

It controls your fueling from a minimum boost situation up to full boost. It does nothing for 0 boost situation............only a 2-3psi on up to full boost fueling.

Does that make sense?
89 RC on shortened 92 diesel frame - NV4500 w/dual disc/4.10s on 37s. - Self built pump, "hot screw", lots of timing, True high volume low pressure lift pump, 62fmw/68/.7gated, 77lpm SAC Inj., Studs/O-rings,- 423/1220 Mustang - 11/16/2013 http://www.TheHungryDiesel.com full line dealer, if you don't see it please ask.
RCCUMMINS89
14mm rotor
 
Posts: 4826
Joined: Mon Oct 03, 2011 4:19 pm
Location: Spirit Lake, ID
Top

Re: afc spring

Postby warhammer92 » Thu Aug 01, 2013 1:49 pm

Oh OK thank you for clearing that up
87 f350 w/ 92 I/c cummins. 64mm,6x16 inj., dual intake,188/208, m4,300cc pump,PS I/c, marine pistons,mild ported head. Fully built a518 with 1800 stall.
warhammer92
fuel screw!!!!
 
Posts: 77
Joined: Tue Jul 02, 2013 4:13 pm
Location: Windsor,Ca
Top

Re: afc spring

Postby Knoberman » Sat Aug 03, 2013 12:12 pm

Side by side shot hungry diesel & stocker, for anyone curious.
Image
92 Cummins& a 518. installed in a 86 cclb f350 4x4
Knoberman
fuel screw!!!!
 
Posts: 67
Joined: Sat Jan 01, 2011 12:10 pm
Location: mid Mo
Top

Re: afc spring

Postby PToombs » Sat Aug 03, 2013 5:32 pm

That's downright funky looking!
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11367
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
Top

Re: afc spring

Postby Tacoclaw » Sat Aug 03, 2013 5:43 pm

Looks like someone swapped Pete's monitor for a mirror again.
1990 W250 4x4
Rattles, growls, whistles, and whines.
User avatar
Tacoclaw
14mm rotor
 
Posts: 4108
Joined: Wed Mar 11, 2009 7:50 am
Location: Cheshire, OH
Top

Re: afc spring

Postby ellis93 » Sat Aug 03, 2013 5:45 pm

Tacoclaw wrote:Looks like someone swapped Pete's monitor for a mirror again.

OMG! Corny post :lol:
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
User avatar
ellis93
14mm rotor
 
Posts: 7761
Joined: Wed Feb 17, 2010 3:16 pm
Location: lucedale,mississippi
Top

Re: afc spring

Postby PToombs » Sat Aug 03, 2013 5:50 pm

ellis93 wrote:
Tacoclaw wrote:Looks like someone swapped Pete's monitor for a mirror again.

OMG! Corny post :lol:


Duhhhhhh, ya think? :roll:
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11367
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
Top

Re: afc spring

Postby RCCUMMINS89 » Sat Aug 03, 2013 5:51 pm

PToombs wrote:That's downright funky looking!



It's a "wave redux" style of spring.........It's a pretty neat little design. 8)
89 RC on shortened 92 diesel frame - NV4500 w/dual disc/4.10s on 37s. - Self built pump, "hot screw", lots of timing, True high volume low pressure lift pump, 62fmw/68/.7gated, 77lpm SAC Inj., Studs/O-rings,- 423/1220 Mustang - 11/16/2013 http://www.TheHungryDiesel.com full line dealer, if you don't see it please ask.
RCCUMMINS89
14mm rotor
 
Posts: 4826
Joined: Mon Oct 03, 2011 4:19 pm
Location: Spirit Lake, ID
Top

Re: afc spring

Postby Tacoclaw » Sat Aug 03, 2013 6:05 pm

Goin' all 3rd grade on your asses!
1990 W250 4x4
Rattles, growls, whistles, and whines.
User avatar
Tacoclaw
14mm rotor
 
Posts: 4108
Joined: Wed Mar 11, 2009 7:50 am
Location: Cheshire, OH
Top

Re: afc spring

Postby PToombs » Sun Aug 04, 2013 4:43 pm

Since that's all the edumacation you have? :lol:
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11367
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
Top

Re: afc spring

Postby Tacoclaw » Sun Aug 04, 2013 4:52 pm

Tech school in highschool and diesel college?

It may as well be. :lol:
1990 W250 4x4
Rattles, growls, whistles, and whines.
User avatar
Tacoclaw
14mm rotor
 
Posts: 4108
Joined: Wed Mar 11, 2009 7:50 am
Location: Cheshire, OH
Top

Re: afc spring

Postby warhammer92 » Sun Aug 04, 2013 8:12 pm

I'm gonna have to order one of those for sure
87 f350 w/ 92 I/c cummins. 64mm,6x16 inj., dual intake,188/208, m4,300cc pump,PS I/c, marine pistons,mild ported head. Fully built a518 with 1800 stall.
warhammer92
fuel screw!!!!
 
Posts: 77
Joined: Tue Jul 02, 2013 4:13 pm
Location: Windsor,Ca
Top
Post a reply

Return to The good stuff

Who is online

Users browsing this forum: No registered users and 88 guests

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group