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KBecker443

Need bigger injectors?

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Hey guys I have a 125s in my truck right now, with compound turbos, I feel like my 125s aren’t quite enough to spool the turbos very well. Turbos are a BWs364sxe and a BWS475. Any help with figuring what size injectors I should go with. Was thinking 200s 

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Posted (edited)

Id go with bigger injectors 125's are about right for a stock turbo with a mindful driver

 

 

some quality 6 x .013's would be my choice.

Edited by Me78569

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@Me78569 would I have to upgrade my VP to run with that size injectors and keep the truck reliable? It is my daily driver and tow rig

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Posted (edited)

I'm running 7x.014 nozzles with a regular VP44, to the best of my knowledge, there's nothing wrong with that. Let me know what you come up with.

 

I first put on these 7x.014 DSS (Diesel Speed Shop) injector nozzles when I built my truck up. They were always pretty dirty, but delivered. I took them out at some point because they were idling a bit rough and smokey. I bought my own pop tester, and it turns out pop pressure was all over the place. The shop that did them did a poor job matching them all up.

 

I then put in some DAP 7x.013 nozzles. They were much cleaner and I liked them. I went to re-pop test them after about 7500 kms or so, and one or two are shot, they wont atomize (mist), they just pop and squirt. Very disappointing to say the least, I still need to talk to them about this.

 

Recently I put the 7x.014 DSS nozzles back in, they pop tested well. But my EGT's are up about 200 degrees on the big end. Compounds seem to like them though. I'm trying to tune them for smoke, and one thing I noticed is that I could inject a lot more fuel at low psi to help with spool-up with the DAP nozzles, as compared to DSS.

 

Sorry for the derail, I'm just curious to see what you decide on.

Edited by kzimmer
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1 hour ago, kzimmer said:

I then put in some DAP 7x.013 nozzles. They were much cleaner and I liked them. I went to re-pop test them after about 7500 kms or so, and one or two are shot, they wont atomize (mist), they just pop and squirt. Very disappointing to say the least, I still need to talk to them about this.

Did you have a sign of them going bad like miss at idle. This has always been my fear of aftermarket injectors, they just seem to have way more problems then originals. I'm hoping mine will last at least a 100k but somehow I'm not sure. Getting tired of pulling injectors for random reasons. 

I would like to get a pop tester soon just so u can start playing with my old take outs, they only have 10k on them be interesting to see where they're at.

What tester you got ?

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Posted (edited)

I'm running 7 x 0.010 150 HP and a HX35/40 hybrid turbo. No issues. Daily driver 1,000 miles a week and getting roughly 21 MPG.

Edited by Mopar1973Man

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15 hours ago, Dieselfuture said:

Did you have a sign of them going bad like miss at idle. This has always been my fear of aftermarket injectors, they just seem to have way more problems then originals. I'm hoping mine will last at least a 100k but somehow I'm not sure. Getting tired of pulling injectors for random reasons. 

I would like to get a pop tester soon just so u can start playing with my old take outs, they only have 10k on them be interesting to see where they're at.

What tester you got ?

 

I don't remember noticing any signs of them going bad. The truck did sit for 6 months before I pulled the injectors though. 

 

I have a cheap tester off of eBay. Nothing fancy but it does the job. I replaced the gauge with a better one though.

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On 6/11/2019 at 12:29 PM, kzimmer said:

I'm running 7x.014 nozzles with a regular VP44, to the best of my knowledge, there's nothing wrong with that. Let me know what you come up with.

 

I first put on these 7x.014 DSS (Diesel Speed Shop) injector nozzles when I built my truck up. They were always pretty dirty, but delivered. I took them out at some point because they were idling a bit rough and smokey. I bought my own pop tester, and it turns out pop pressure was all over the place. The shop that did them did a poor job matching them all up.

 

I then put in some DAP 7x.013 nozzles. They were much cleaner and I liked them. I went to re-pop test them after about 7500 kms or so, and one or two are shot, they wont atomize (mist), they just pop and squirt. Very disappointing to say the least, I still need to talk to them about this.

 

Recently I put the 7x.014 DSS nozzles back in, they pop tested well. But my EGT's are up about 200 degrees on the big end. Compounds seem to like them though. I'm trying to tune them for smoke, and one thing I noticed is that I could inject a lot more fuel at low psi to help with spool-up with the DAP nozzles, as compared to DSS.

 

Sorry for the derail, I'm just curious to see what you decide on.

 

 

Nozzles should last much longer than 7500km.  I looked up your order and saw that you bought nozzles.  Contact Mitch and we can get something worked out for you.

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1 hour ago, dieselautopower said:

 

 

Nozzles should last much longer than 7500km.  I looked up your order and saw that you bought nozzles.  Contact Mitch and we can get something worked out for you.

 

Sounds good, I know you guys will back up your products. I haven't contacted anyone yet, just haven't had spare time in the last couple of months. I appreciate you reaching out.

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9 hours ago, kzimmer said:

 

Sounds good, I know you guys will back up your products. I haven't contacted anyone yet, just haven't had spare time in the last couple of months. I appreciate you reaching out.

You are welcome

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