biggest nozzles on stock injectors?

[zf>allison]

How big of nozzles can you effectively run on stock injectors before the injector itself needs to be modified? I have 45s on the lly and if I'm gonna have over 700 hp on the stock engine I would mind at least trying to keep the pulse width down to a minimum. Probably would help stay on top of the box 75 single as well. It will have mpi dual fuelers with a sportsman and a stock cp3, other than that it's stock sticks with nozzles.

 

[gmduramax]

I put 60% nozzles on an lly and it dynoed 640 with 2000 pulse. 68fmw

 

[quinton]

Mine are 80% and are fine. I know of guys running 150-200% over on stock bodies

 

[zf>allison]

Mine are 80% and are fine. I know of guys running 150-200% over on stock bodies

I guess I just wonder why guys sink so much in new injectors instead of buying nozzles. Maybe I need some 100s or at least 60s.

 

[zf>allison]

I'll be on the lookout for some used lly nozzles bigger than 45s then, 70s up to 100s.

 

[Awenta]

I guess I just wonder why guys sink so much in new injectors instead of buying nozzles. Maybe I need some 100s or at least 60s.

Usually it's time to change them anyway


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[zf>allison]

Usually it's time to change them anyway


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Yeah I'll probably just not check mine, id rather not know right now.

 

[Dominic_StarliteDiesel]

I know people who ran 150%-175% overs on stock bodies with no issues.

 

[Blackmax123]

Mark Brovaik told me he wouldn't go over 200% overs on stock bodies because they get very finicky to tune..

Personally before I'd buy larger nozzles I'd send your injectors to exergy and have the tested. Then have them hone your nozzles to what you want.

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[zf>allison]

Mark Brovaik told me he wouldn't go over 200% overs on stock bodies because they get very finicky to tune..

Personally before I'd buy larger nozzles I'd send your injectors to exergy and have the tested. Then have them hone your nozzles to what you want.

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Probably not a bad idea, the unturned 45s are doing ok lol, just figured it's better to have the lower pulse with no matter the condition. I'm basically just hoping it makes it through the track days this summer. Next year I'm probably gonna be doing a build bottom end. And have everything checked out.

 

[Awenta]

Mark Brovaik told me he wouldn't go over 200% overs on stock bodies because they get very finicky to tune..

Personally before I'd buy larger nozzles I'd send your injectors to exergy and have the tested. Then have them hone your nozzles to what you want.

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Exergy always come back as a pass. Send them to s&s.


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[zf>allison]

Exergy always come back as a pass. Send them to s&s.


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Maybe, might just send off the stock nozzles I have and have them hogged out, I'll have to get marks opinion he's gonna be tuning this timebomb:violin:

 

[DangerousDuramax]

Exergy always come back as a pass. Send them to s&s.


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What he said. Exergy is notorious for passing injectors that should fail and if you buy a set of theirs and it fails they will always say they found metal in it that caused the failure. No matter if they were brand new in a race truck or you ran them for thousands of miles in a daily driver. Their canned response for a bad injector is its your fault because we found metal in it. S&S makes a better product and they stand behind them. One of the S&S founders is a former Exergy engineer.

 

[zf>allison]

What he said. Exergy is notorious for passing injectors that should fail and if you buy a set of theirs and it fails they will always say they found metal in it that caused the failure. No matter if they were brand new in a race truck or you ran them for thousands of miles in a daily driver. Their canned response for a bad injector is its your fault because we found metal in it. S&S makes a better product and they stand behind them. One of the S&S founders is a former Exergy engineer.

Sucks to hear that about exergy, they gotta make money but come on.

 

[Brent@LDS]

We can help you here at Lincoln Diesel Specialties for your injector or nozzles needs. Also I can't agree enough about what was mentioned above!!

 

[zf>allison]

We can help you here at Lincoln Diesel Specialties for your injector or nozzles needs. Also I can't agree enough about what was mentioned above!!

Thanks I have a few places to call for sure. I'll drop you guys a call:thumb:

 

[Blackmax123]

Exergy always come back as a pass. Send them to s&s.


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Not true. I bought a set of really low milage lbz injectors. Only had 56k miles. Sent them to exergy. All but 3 failed. 2 are usable. I is boarder line and 5 are junk. Had little to no response. They were badly stained and heavy sludged up.

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[Chevy1925]

Thanks I have a few places to call for sure. I'll drop you guys a call:thumb:

talk with Brent. they have damn good prices. its where i got my stuff

 

[03blkdmax]

I think to guys should be quicker to pull their injectors and screw bigger nozzles on.. not that expensive and pretty easy to do

 

[zf>allison]

I got some 100 overs in my near future:thumb: