Injector nozzle upgrade and rattle/haze

D

Deputydog

Proud Fummins Owner
Joined
Jun 19, 2008
Messages
407
Just swapped nozzles from 150's to a 180 industrial nozzle. Truck seems like it's alot more noisy aka rattle and hazes as I drive under normal throttle. Just wondering if this is normal?
 
hey interested in your 150s, but anyways , i got a set of 180s by mistake and noticed the same thing with the rattle and they did haze a bit only normal highway speed none at idle , i took them out cause of it but thats only cause i only had a 62mm at th time and i ordered 100s
 
Got scheid 150s in my vp and they haze like crazy.


Posted to not CumminsForum via not autoguide for iphone.
 
Howling said:
Try playing around with the timing if you can.
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Yeah I have played with timing and duration and it never goes away. I talked with someone who sells alot of Industrial Nozzles and said the rattle is quite common with thier larger nozzles.
 
I have injectors that are larger than yours and I get little rattle when I'm not making any boost,but once I see a little over 5psi it goes away.
 
I have 260hp injectors in my truck, and now I'm on my second set of twins. First set was a 62/65/14 over a GT4202. They would start to light at 1500-1600 rpm. No rattle , and I ran this setup for 3 almost 4 years.
Flash forward to today, I have a new set of twins on 63/74/14 over a 80/96/1.10. New set starts to light at 1800 rpm, and you guessed it the truck now has rattle until it builds a little boost.
The only difference for me was the size of the twins. I think the big lazy turbos are really the problem and injectors are getting the blame for all the rattle.
 
Green04HO said:
I have 260hp injectors in my truck, and now I'm on my second set of twins. First set was a 62/65/14 over a GT4202. They would start to light at 1500-1600 rpm. No rattle , and I ran this setup for 3 almost 4 years.
Flash forward to today, I have a new set of twins on 63/74/14 over a 80/96/1.10. New set starts to light at 1800 rpm, and you guessed it the truck now has rattle until it builds a little boost.
The only difference for me was the size of the twins. I think the big lazy turbos are really the problem and injectors are getting the blame for all the rattle.
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Crazy we run a secondary almost as large as your primary, and don't get any rattle at all... Our setup also starts to light at about 1900rpm, sounds like tuning to me.
 
dvst8r said:
Crazy we run a secondary almost as large as your primary, and don't get any rattle at all... Our setup also starts to light at about 1900rpm, sounds like tuning to me.
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It won't tune out for me with any of the settings I've tried that are available to me with the Smarty. I guess i see what you are saying with the tuning though... I have EFI, I'm just patiently waiting for it to become available for my year.
 
Green04HO said:
It won't tune out for me with any of the settings I've tried that are available to me with the Smarty. I guess i see what you are saying with the tuning though... I have EFI, I'm just patiently waiting for it to become available for my year.
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We just run SSR, but each truck is a little different so yours will probably need a specific touch when good tuning becomes available for it.
 
Thanks for all the input.. When I had my 150's never noticed much rattle, but when I went with the Industrial 180's, much more rattle. Nothing else changed on the truck. I also notice once the turbos light, rattle goes away (or maybe its just that the turbo's drown it out?). Truck runs fine, just rattle.
 
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