02 3500 6 speed HO. 252k miles.  Still has factory injectors & HX35W turbo, etc. No tuning mods (Yet. Maybe quadzilla and DAP 100hp 7X0.009 VCO injectors in the near future)

 

Anyhow, my questions is this:  I added a boost elbow recently. How much boost gain can I expect by adding a boost elbow? I was getting 22 psi before installing boost elbow. After installing went up to about 24 psi max.   Is that to be expected? Or is there a possibility my waste gate is not fully closing?  Figured I'd get some feedback from you guys before I start taking things apart.

What comes first, chicken or egg? Does the fueling increase relative to boost increase? Or does the boost increase relative to fueling increase?  Is a tuning mod such as quadzilla needed to increase fueling to get more boost?

 

Thanks

 

 

On 2/23/2023 at 9:25 PM, Doubletrouble said:

 I would do injectors first and soon. If those are truly OEM factory injectors they're way past their service life. Typically injector life is 100-150k miles.

Thanks.  I'll plan this.  

 

When replacing the injectors, is it also necessary to replace the connector tubes?    Or if not, should I at least replace the connector tube O-rings?

 I got my injectors from @dieselautopower they came with everything needed to install.

 I reused my injector tubes, inspect them before putting them back in.

4 hours ago, Mopar1973Man said:

I could most likely pass a smog test with my DAP +150HP Injectors (7 x 0.010), Quadzilla Adrenaline, and stock HX35W turbo. The way my tune is set up and the fuel table I run there is no smoke. If I wanted to hide the tune I could easily stash it up in the dash and hide most of the wiring. Some of the main reasons I can do this with such big injectors is the fact that other tuners like Edge CTS or Edge EZ do not allow for timing adjustments. Strangely I'm now running upwards of 24 to 25 degrees BTDC at 2,000 RPM which no other tuner can do and burn so cool in EGTs that at my 65 MPH speed I'm right at 550 to 600-degree EGTs with about 2 PSI of boost.  Bonus is having super high MPG's. 

 

That should make you think...

 

Cool info @Mopar1973Man  What are your average "super high" MPG's with this setup?

its nice to meet another Jerseyian here. I live in Atlantic County.

On 2/25/2023 at 4:41 PM, Ironforger said:

 

Cool info @Mopar1973Man  What are your average "super high" MPG's with this setup?

 

28.2 MPG hand math. I did another trip from Seattle WA filled the tank drove 300 miles across Washington to the Idaho border and used a touch more than a 1/4 tank across the entire state of Washington last summer. Even this winter with temps as low as -20*F I was still holding close to 22 MPG running 25 degrees of timing at 2,000 RPMs. My current tune is way aggressive timing at a cruise state. Under power, it drops to about 18 degrees at 2k RPMs and flat tucks tall and bails down the pavement. 

 

Oh give me some time and I'll be getting the Quadzilla added to the store very soon. 

https://store.mopar1973man.com/2nd-generation-24-valve/tuners-programmers.html

On 2/25/2023 at 6:12 PM, Ironforger said:

Thanks.  I'll plan this.  

 

When replacing the injectors, is it also necessary to replace the connector tubes?    Or if not, should I at least replace the connector tube O-rings?

I replaced my tubes when i swapped the pump two weeks ago. bu i would certainly change the o rings on the tubes.

Correct. Quadzilka does NOT modify and software. ODBII checksums are not altered like a Smarty or other programmer. It should be undetectable by any scan tool.  @Threadzy is right.