[Drewsmobile]

Ok all I’m at my wits end with this one. I need some input.

2001 ram 3500 5.9 auto 4x4 drw hy35 turbo
3.54 gears trucks weighs about 12,350 without a trailer
Built the trans as well thinking it was losing power there.

When I bought it it was dog sh*t slow wouldn’t boost above 17 lbs. even played with tunes in the smarty jr.

Installed dpp 100hp injectors
No change. Just Smokey now.

Wired wastegate shut. Gets to 18lbs a lot faster.

Bought a used hx35. Wastegate wouldn’t fit it was off a medium duty application. So I removed it and wired it shut. Boosts 27lbs now.

I feel like it should be boosting a lot more than that. Also it’s hazy at idle and under light load.

Is it possible the pump timing is locked or something? What should I be checking for?

I should also mention the egt don’t really go above 1200 under wot but when I am rollin down the freeway and make it down shift it’ll start clouding even under full boost. 🤷‍♂️ any input is appreciated.

 

[johnstangl]

my stock hx35 could put out 30psi with only a box tuner and no wire tap, the edge box i had only changes the timing so i don’t think it could be locked. are they sac or vco injectors? i heard sac nozzles will always have some type of haze

as for power, could just be these old vp trucks, takes a lot more to make ‘em fast than it is with common rail

 

[me78569]

Ddp injectors are notoriously hot and smokey. 30 psi I what I would expect with your setup.

I think your issue with a slow truck originally was just it being a stock 2nd gen, now the smoke issue is your injector brand.

 

[Drewsmobile]

OK, so disregarding the smoke issue how can I get a little more boost out of it? I would like to see 35 to 40 pounds. I would like to get a little better fuel mileage if possible and a little more power being that it’s so heavy. I guess my biggest issue right now is I’m fighting not getting more boost out of it. Is there a stock turbo other than what I have that I can bolt on and get a little more? For a good deal? Or am I “pissing in the wind”.
What is vco or sac? Also I am only running smarty jr no wire tap or anything. What I was saying about timing is the internals on the pump being older maybe it isn’t changing and that’s my problem? How can I tell?

 

[me78569]

The hx35 is out of steam by 35 psi. You will need more fuel to go from 30 psi to 35 psi. Either bigger injectors or a wiretap tuner.

Boost does not equal power, it is simply a number showing you resistance in the system. Boost is generated by fuel, if you want more boost you need more fuel.

Your pump is likely fine as your boost is on par with the fueling you have. If your pump wasn't advancing timing you would get a p0216 code.

Don't be so stuck on boost numbers. Unless you want to step up fueling your setup is right where it should be.

 

[Drewsmobile]

I would like to clean it up a bit and stop the hazing if I can and possibly get a bit more out of it. What injectors are better than what I have but not gonna break the bank? I have been told a higher pop pressure will clear it up to is that true? I need more power off the line more than anything. I have a built trans so I am not concerned about popping it but getting this tank rolling is difficult. Highway speeds and even passing power are fine.

 

[MoparProud]

That truck naturally is going to be slow. You’ve also got minimal tuning at best, Smarty is limited on what it can do with what you have. Also, Smarty Jr for a 24v? I don’t recall such a thing but that’s neither here nor there.

A stock auto truck I don’t think hits 30psi, even with minimal tuning. The few I’ve been around haven’t.

If your pump were having issues like locked timing, you better believe it would be tossing codes.

I actually think your truck is about where it should be.

 

[Drewsmobile]

Ok so is there a tuner that is better than what I have? I’m not set on this one it’s just what came with the truck. It’s a smarty s-03 not a jr sorry.
I know this truck has more to give. I have had half a dozen of them over the years and this one is not at full power. It’s not throwing codes either. So idk what’s going on. Sure the numbers sound right but seat of the pants this thing is in need of help.

 

[me78569]

You are not going to solve the haze issues with ddp injectors. Dap is a good source that will run much cleaner.

The smarty is also dirty tuning, I prefer the quadzilla.


Some 7 x .010 injectors plus a quad will be night and day difference in power and also run smoke free with a proper tune.

 

[Drewsmobile]

Ok I’m looking into it. Thank you.