60 over nozzles install - Chevy and GMC Duramax Diesel Forum
04.5-05 LLY Performance Parts Discussion Discussion of Performance Parts For the 04.5-05 LLY Duramax Trucks No Advertising

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post #1 of 10 (permalink) Old 01-12-2020, 08:29 PM Thread Starter
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60 over nozzles install

Putting in 60 over nozzles along with 65mm Danville stg 2 and a xergy 10mm cp3, First injector I pulled took 3 hrs, had to cut the hard line and weld a nut to it and screw my slide hammer to it, geeez. The dealer had replaced injectors under warranty 10yrs ago and I guess didn’t clean injector bores so the last 100k miles it’s been seeping carbon into injector bore. Not fun! Hope to get it fired up Tuesday or Wednesday.

2004 lly, cclb, engine #2 installed at 27k miles, 4x4, 35/12.50 on h2 wheels no lift , fass @ 15psi, Ppe billet pick up, drilled rail fittings, passengers fender cut with boat vent cai, lbz mouthpiece, ppei ecm and trans tunes, 10yr old suncoast trans, 1056 converter, cognito braces, fabtech tie rods, ppe fprv race plug,3” ppe down pipe, 4” exhaust , 12.92 @ 104

1/14/20 sleeper mods done 65mm Danville billet stage 2, exergy 10mm stroker cp3, 60 over nozzles on old injectors, ppe 2” up pipes for lb7, egr blocker plate, egr parts in and stock intake and y bridge for sleeper look, On 265/75/16 stock wheels, caltracs w/ overloads removed.
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post #2 of 10 (permalink) Old 01-12-2020, 11:36 PM
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Ive heard of someone hooking a strap connected to a tractor to pull one before
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Race/Pulling truck- 2012 CCSB Cummins/Built Engine/
Full Billet 48RE Swap controlled by PCS2000/
Ratchet shifted/Big fuel/Big air/Lowered

Tow Rig/Daily-2005 GMC LLY/CCLB/Loaded out/Tuned/
Airdog/Turbo/SOLD BACK TO DEALER

2011 LML CCSB-Huge s400/Big fuel/SOLD
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post #3 of 10 (permalink) Old 01-13-2020, 12:10 AM Thread Starter
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Was about to hook up to my 3 ton chain hoist or the forklift and pull that sucker out if slide hammer didn’t get it. #hardonequipment. That mentality gets you way more stories and scars than the average dude. I have the stories and hospital trips to prove it.

2004 lly, cclb, engine #2 installed at 27k miles, 4x4, 35/12.50 on h2 wheels no lift , fass @ 15psi, Ppe billet pick up, drilled rail fittings, passengers fender cut with boat vent cai, lbz mouthpiece, ppei ecm and trans tunes, 10yr old suncoast trans, 1056 converter, cognito braces, fabtech tie rods, ppe fprv race plug,3” ppe down pipe, 4” exhaust , 12.92 @ 104

1/14/20 sleeper mods done 65mm Danville billet stage 2, exergy 10mm stroker cp3, 60 over nozzles on old injectors, ppe 2” up pipes for lb7, egr blocker plate, egr parts in and stock intake and y bridge for sleeper look, On 265/75/16 stock wheels, caltracs w/ overloads removed.
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post #4 of 10 (permalink) Old 01-13-2020, 08:44 PM Thread Starter
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All done, fired up without a problem. Roads are wet so tires spin at partial throttle, turbo sound is awesome. Glad I did everything at once. Gunna take me a full day to clean up the shop haha, as soon as it warmed up I was out driving! More updates when I have dry roads.
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2004 lly, cclb, engine #2 installed at 27k miles, 4x4, 35/12.50 on h2 wheels no lift , fass @ 15psi, Ppe billet pick up, drilled rail fittings, passengers fender cut with boat vent cai, lbz mouthpiece, ppei ecm and trans tunes, 10yr old suncoast trans, 1056 converter, cognito braces, fabtech tie rods, ppe fprv race plug,3” ppe down pipe, 4” exhaust , 12.92 @ 104

1/14/20 sleeper mods done 65mm Danville billet stage 2, exergy 10mm stroker cp3, 60 over nozzles on old injectors, ppe 2” up pipes for lb7, egr blocker plate, egr parts in and stock intake and y bridge for sleeper look, On 265/75/16 stock wheels, caltracs w/ overloads removed.
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post #5 of 10 (permalink) Old 01-13-2020, 10:48 PM
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Doing everything at once is definitely the way to do it. Glad you got it back together

Race/Pulling truck- 2012 CCSB Cummins/Built Engine/
Full Billet 48RE Swap controlled by PCS2000/
Ratchet shifted/Big fuel/Big air/Lowered

Tow Rig/Daily-2005 GMC LLY/CCLB/Loaded out/Tuned/
Airdog/Turbo/SOLD BACK TO DEALER

2011 LML CCSB-Huge s400/Big fuel/SOLD
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post #6 of 10 (permalink) Old 01-13-2020, 11:43 PM Thread Starter
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Found some crazy stuff while working on it, engine was replaced at 27k under warranty for a spun #7 rod bearing all stock no tuner, was all good till flex plate cracked all the way around at about 50k due to the lack of dowel pins in the block from engine replacement. By that point it had the old Van AAken 150hp box in it and I took the tranny from the dealer and built it while they waited on new flex plate and dowel pins and they put it back in for me. Thought all the mistakes had been found years and years ago. This little project revealed missing bolts and nuts on y bridge, found them laying in the lifter valley, chunks of o rings missing in y bridge inlet tube, cp3 had a missing mounting bolt and one injector not seated. Also resonator had a big crack but that was unrelated. How it ran 12.92 at 104 stock in that condition I will never know.

2004 lly, cclb, engine #2 installed at 27k miles, 4x4, 35/12.50 on h2 wheels no lift , fass @ 15psi, Ppe billet pick up, drilled rail fittings, passengers fender cut with boat vent cai, lbz mouthpiece, ppei ecm and trans tunes, 10yr old suncoast trans, 1056 converter, cognito braces, fabtech tie rods, ppe fprv race plug,3” ppe down pipe, 4” exhaust , 12.92 @ 104

1/14/20 sleeper mods done 65mm Danville billet stage 2, exergy 10mm stroker cp3, 60 over nozzles on old injectors, ppe 2” up pipes for lb7, egr blocker plate, egr parts in and stock intake and y bridge for sleeper look, On 265/75/16 stock wheels, caltracs w/ overloads removed.
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post #7 of 10 (permalink) Old 01-16-2020, 10:32 PM Thread Starter
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So truck was running kind rough, checked balance rates, Gunna replace 5 injectors with Bosch remans, last week I installed 2 GB injectors as that was the only thing available, those 2 were the worst of the 8, lesson learned only Bosch injectors from now on, they should be in and I can swap the 60over nozzles next week as I am going rock crawling with my brother this weekend. If we put it on the trailer under its own power we didn’t do it right lol.

2004 lly, cclb, engine #2 installed at 27k miles, 4x4, 35/12.50 on h2 wheels no lift , fass @ 15psi, Ppe billet pick up, drilled rail fittings, passengers fender cut with boat vent cai, lbz mouthpiece, ppei ecm and trans tunes, 10yr old suncoast trans, 1056 converter, cognito braces, fabtech tie rods, ppe fprv race plug,3” ppe down pipe, 4” exhaust , 12.92 @ 104

1/14/20 sleeper mods done 65mm Danville billet stage 2, exergy 10mm stroker cp3, 60 over nozzles on old injectors, ppe 2” up pipes for lb7, egr blocker plate, egr parts in and stock intake and y bridge for sleeper look, On 265/75/16 stock wheels, caltracs w/ overloads removed.
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post #8 of 10 (permalink) Old 01-28-2020, 03:11 PM
 
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I'm new to the duramax, but was wondering if the 60 over nozzles are worth it? I always thought the stock ones are good for up to 600hp? Is your truck making more than that?

Casey
1999 Cummins Race Truck "Frank"
2005 LLY Tow Pig "Hoopty"
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post #9 of 10 (permalink) Old 01-28-2020, 04:40 PM
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Quote:
Originally Posted by turbobark View Post
I'm new to the duramax, but was wondering if the 60 over nozzles are worth it? I always thought the stock ones are good for up to 600hp? Is your truck making more than that?
Just cause stock are said to be good up to a certain number doesnt mean you dont need to upgrade them. A larger injector(to a certain point) tuned for 600hp will be a lot safer on the motor compared to a stock injector at 600. Pulse width/ timing decreased, EGTs cooler , & keeping the fuel in the bowl of the piston are the benefits of a larger injector at the same power level.

2016 LML Denali 2500
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post #10 of 10 (permalink) Old 01-28-2020, 04:53 PM
 
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Quote:
Originally Posted by denarli6.6 View Post
Just cause stock are said to be good up to a certain number doesnt mean you dont need to upgrade them. A larger injector(to a certain point) tuned for 600hp will be a lot safer on the motor compared to a stock injector at 600. Pulse width/ timing decreased, EGTs cooler , & keeping the fuel in the bowl of the piston are the benefits of a larger injector at the same power level.
Good point about the tuning differences, is the spray angle narrower on the 60% overs?

Casey
1999 Cummins Race Truck "Frank"
2005 LLY Tow Pig "Hoopty"
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