SAC vs VCO

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Re: SAC vs VCO

Postby spencerdiesel » Tue Mar 08, 2016 7:45 pm

What sticks you running in yours at the moment?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing bumped 3/16"
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Re: SAC vs VCO

Postby RCCUMMINS89 » Tue Mar 08, 2016 8:02 pm

Me? 7x11 sac that we honed out to 3.7lpm (68lpm in air). Remember, I'm running a 24 valve ve......so vp injectors.
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.
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Re: SAC vs VCO

Postby fatty » Tue Mar 08, 2016 8:18 pm

I run a set of Eric's 6x13. They're pretty awesome in my opinion. I was a bit skeptical about the honing at first, but they make more and cleaner power than a set of 5x18 I also ran.
91.5 w250
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Re: SAC vs VCO

Postby spencerdiesel » Thu Mar 10, 2016 7:03 am

Great info. So there are 7 holes in correct spray angle now? Not the denso 158?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing bumped 3/16"
Muffler delete
spencerdiesel
14mm rotor
 
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Re: SAC vs VCO

Postby spencerdiesel » Thu Mar 10, 2016 7:04 am

How's the 24v doing Eric?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing bumped 3/16"
Muffler delete
spencerdiesel
14mm rotor
 
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Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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Re: SAC vs VCO

Postby RCCUMMINS89 » Sat Mar 12, 2016 1:18 am

Fine, I haven't had enough drive and tuning time in order to get things where I wan them yet.
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
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Re: SAC vs VCO

Postby spencerdiesel » Mon Mar 21, 2016 1:52 pm

In some cases, it seems some power can be lost when going too large with an injector.

Is this because an .018 orifice (for example) doesn't have enough umph behind it from the VE to atomize properly? I realize there are a lot of other variables.

In a world where $ is no object, could one have a certain twins setup that could make better use of an overly large injector? Roughly how many lpm is a common max before no more gains from a VE can be seen?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing bumped 3/16"
Muffler delete
spencerdiesel
14mm rotor
 
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Joined: Tue Oct 27, 2015 4:02 pm
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Re: SAC vs VCO

Postby RCCUMMINS89 » Mon Mar 21, 2016 2:19 pm

Look at David's setup.....that's a perfect example of a setup that can utilize huge sticks
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
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Re: SAC vs VCO

Postby spencerdiesel » Mon Mar 21, 2016 3:39 pm

Did he dyno 489 with the 6x16 or 5x18?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing bumped 3/16"
Muffler delete
spencerdiesel
14mm rotor
 
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Re: SAC vs VCO

Postby RCCUMMINS89 » Mon Mar 21, 2016 4:12 pm

6x16
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
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Re: SAC vs VCO

Postby DMan1198 » Tue Mar 22, 2016 8:53 am

That was my goal with my compound setup. Have a secondary that lights very quickly, and a primary that comes on as quickly as possible too. I'm close to what I wanted, but with the undivided spacer, and drilled divider I lost more bottom end than I wanted. When I replace the secondaries turbine housing I'm not going to drill the divider, and I'll switch to a divided spacer, so I can get some spoolup back.

And hopefully while I'm at school this time I'll be able to make use of the pop testers they have, and get my 5x16's from Eric swapped onto 1st gen bodies. I'd also like to work over one of my spare 12v heads, and put that on along with putting my 188/220 cam in (I sure have a lot of things I want to do that I can't afford to do right now)
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
Jaeger: 12 ram 3500. Lifted, exhausted, and fed an excessive quantity of air
The Huntress: 02 Jetta TDI. No muffler, egr, horsepower
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Re: SAC vs VCO

Postby spencerdiesel » Thu Jan 12, 2017 4:14 am

What kind of dyno #'s are people making with a 6x13 injector and enough air?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing bumped 3/16"
Muffler delete
spencerdiesel
14mm rotor
 
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Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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Re: SAC vs VCO

Postby RCCUMMINS89 » Thu Jan 26, 2017 12:05 am

Bosch 6x13 400-425 or so. With our competition (6x13 that are then honed), we have quite a few guys in the high 440-450 range.


BTW......seems I don't get any email notifications from the site anymore. Whether it be Pm, or from a thread.
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
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Re: SAC vs VCO

Postby 79Powerwagon » Thu Jan 26, 2017 5:34 am

What turbo setup are guys using to get to those numbers? Fairly stock injection pump?
1979 Dodge Warlock, I/C 12v, 518, TCS89% Converter, 6x13 injectors, HE351cw, Piston lp
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Re: SAC vs VCO

Postby DMan1198 » Thu Jan 26, 2017 10:01 am

Pin, timing spacer, and gov spring are about the only things we can do with these pumps, so yeah fairly stock pump.

62fmw, and 62sx-e are popular since they flow a lot more than a he351.
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
Jaeger: 12 ram 3500. Lifted, exhausted, and fed an excessive quantity of air
The Huntress: 02 Jetta TDI. No muffler, egr, horsepower
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