To Sac00 or not to sac00? - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 23 (permalink) Old 10-24-2019, 09:53 PM Thread Starter
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To Sac00 or not to sac00?

Got back into a Diesel truck after selling my LBz a couple year back. Picked up a 2003 Silverado with 96k, original injectors that are making oil but no hazing. I Plan on doing the injectors and HP lines in the next month or so.

truck is used for mild hauling, 24' travel trailer towing and offroading, has an aftermarket exhaust and a 40hp tune with no plans to make massive power.


Been reading and reading but cant find any definitive answers on the SAC00 or stock Bosh with the DLC coating. I dont mind the cost difference, but its a job i would rather not do again. Which would likely hold up longest?

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post #2 of 23 (permalink) Old 10-25-2019, 07:54 AM
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Sac for sure. Contact brent at Lincoln diesel. @[email protected]

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post #3 of 23 (permalink) Old 11-02-2019, 11:49 AM Thread Starter
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Anyone have some miles on the sac00s? How are they holding up compared to stock?

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post #4 of 23 (permalink) Old 11-02-2019, 01:21 PM
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Someone around here or on one the other Dmax forums has racked up quite a few miles on Sac 45's, I have Sac 45's but only 22k on them. So far so good.

04 GMC LB7 2500 SAC 45 injectors DSP5 EFI live, ported air inlet. 4" MBRP droning exhaust.
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post #5 of 23 (permalink) Old 11-02-2019, 02:15 PM
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SAC is the only way to go.
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post #6 of 23 (permalink) Old 11-04-2019, 01:29 PM
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Had SAC00's installed back in June. 7k miles so far with no issues. I'd definitely recommend SAC's over the stock style VCOs. All of the newer trucks with SAC nozzles do not have the common VCO nozzle issues.
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post #7 of 23 (permalink) Old 11-05-2019, 03:25 PM
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For Decades the SAC style has been used for injectors - no problems.

The Duramax LB7 introduces the VCO style - YES PROBLEMS.


You do the math:
SAC style - no problems
VCO style - YES PROBLEMS
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post #8 of 23 (permalink) Old 11-05-2019, 04:17 PM
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Another vote for SACs. I'm on my 5th set of VCOs in 407k miles. The ONE thing I DO know is that given time and miles, the VCOs WILL fail. If I keep my truck long enough, there's no question that I will install SAC00s in my truck. I should be good till about 445k miles on this set but I got the bug for a '21 or '22 baaaaad.
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2002 Chevy 2500HD Crew - Original owner - 408,000 miles so far. All stock with the exception of a lift pump.
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post #9 of 23 (permalink) Old 11-08-2019, 06:55 PM Thread Starter
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Quote:
Originally Posted by Thorp View Post
For Decades the SAC style has been used for injectors - no problems.

The Duramax LB7 introduces the VCO style - YES PROBLEMS.


You do the math:
SAC style - no problems
VCO style - YES PROBLEMS
Pretty convincing argument.
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post #10 of 23 (permalink) Old 11-10-2019, 07:54 PM
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Going SAC for my next set, should get me to 750K+!!!!!

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