155/40 Injector/Turbo/Tuning and Power/Smoke

[IdahoF350]

Ok, so here's the question, for guys with 155/40s or close to...

Is there a combination of turbo and tuning with this size injector that results in minimal, even stock, smoke levels?

In California, the emissions test is a snap test. I can de-fuel the truck from stock in my SCT software, and pass the snap test. But driving, towing, etc, I don't want to look like a gross polluter. The plan would be shoot for 350-375whp and 750-800wtq with 155/40 injectors, likely a DuraStroke Stage 1, and PHP FICM tuning (not sure which exactly), along with final tuning using SCT to bring it all together.

Oh, and the truck will be studded with stock gaskets when the replacement engine goes in. And while it's apart I may do a light cleanup of the bowls and short side radius in the heads, an I will for sure be porting the intake.

Thoughts?

 

[da94broncodude]

350-375whp is all your after? you can damn near get that with tuning, i would prob save your money on the injectors just do the turbo ecu and ficm tuning and you should be 400rwhp

 

[kyle43335]

350-375whp is all your after? you can damn near get that with tuning, i would prob save your money on the injectors just do the turbo ecu and ficm tuning and you should be 400rwhp

agreed.

 

[windrunner408]

I would say either a MTW Stage 1 or Stage 2 should get you what you are looking for but would probably be more like 400-420hp that is able to pass the snap test. For the cleanest 155s possible, I would say Stage 2.

 

[04stroker]

As already stated your stock fueling will be fine. The stock turbo is also fine for that power goal although the MTW turbo or ported intake are defnitley not a bad idea and would work very well even on stock injectors. While you have it torn down though depending on your injector mileage you may want to think about sending them off while there out to be gone through and freshened up. Let me know if I can help with anything.

 

[IdahoF350]

Ok, well, I'd like to be done blowing head gaskets, so in the name of less peak cylinder pressure, I want to try and increase the mean cylinder pressure. My thought is FICM tuning that increases the pulse width without advancing the start of injection will accomplish that. Then it's more a matter of tuning the ICP pressure to determine how fast I empty the larger injector.

 

[Dlinzy]

I have 155's with stock Nozz's from Warren (8) were 650.00 Mad Stg. 1 and Innov. Diesel Eric's X tune and ficm tuning.

Rarely can make it black smoke even in the least. Soon as it bellows a little the Turbo catches up and your gone.

With 155's/40's you may get a little more at idle, romp on it from the stop light kind of Puff that will be it.

M, .02 YMMV.

D

 

[IdahoF350]

Thanks! That helps give me some idea where I want to be.

 

[IdahoF350]

I have 155's with stock Nozz's from Warren (8) were 650.00 Mad Stg. 1 and Innov. Diesel Eric's X tune and ficm tuning.

Rarely can make it black smoke even in the least. Soon as it bellows a little the Turbo catches up and your gone.

With 155's/40's you may get a little more at idle, romp on it from the stop light kind of Puff that will be it.

M, .02 YMMV.

D

From what I can tell, your injectors are more akin to Warren's Stock+ injector than a 155/30-75. That said, you're getting more fuel than an off the shelf replacement, but not 155cc. I still appreciate the feedback though.

So can anyone with a 155cc injector with a nozzle of 40% or greater chime in?

 

[Mwilbur516]

I dynoed well over 450rwhp with a MTW Stage 2 and stock injectors virtually smoke free. I also had PHP's FICM tuning.

 

[Pizza pig]

warren 155/30's, tsd mild panty dropper and a powermax yields hardly a haze , drives very clean. A local truck my buddy put together.

 

[IdahoF350]

Thanks guys.

I know that it would seem like I could get away with a stock injector, but the reality is that I'm trying to hold the parts at a lower duty cycle to increase the life expectancy on everything across the board. The combination I'm looking for would take considerable stress off of the high pressure oil pump and regulator, allow the injectors to operate at very close to the stock duty cycle, and yet make 75hp/200tq more than stock.

Think of it this way: Instead of trying to build a regular Corvette to run like a ZR1 with aftermarket parts, which will inevitably be unreliable and fragile, I'm trying to take the approach of using the best parts like a ZR1 and building that Corvette into a Z06 that's more reliable and less fragile long term.

Essentially, I want performance and reliability similar or just slightly greater than a stock Cummins 6.7L HO from my 6.0L Powerstroke. I'm willing to use better parts in a detuned configuration to try and achieve this, and I know this isn't how most guys would approach this.

 

[fulton327]

How about an IDP moderate ficm tune with one of there custom tunes for the ecm like xtreme street. That will put you well into the 400 range. Maybe a Snow stage 3 tow max to help you when you need a lil extra power and keep the egts low the added fuel the meth adds will take a lil stress of the stock injectors. I ran that set up with stock turbo and injectors and it was very stong and decent mpg as a daily driver.

 

[Countryboy07]

I love how you are approaching this! Very well thought out and I definatly see where you are coming from. Did you blow the Victor Reze HG's? I had a set of Stockers and ARP's put in at the dealer under warranty, blew those due to out of true heads, then put the VR BO HG's in and proceded to blow those within 10,000 miles with 190's and a 62/70. If I had to do it all over, I would proceed the way you are. You are going to have a very good running truck when she is all put back together!

 

[Pizza pig]

Getting the same amount of fuel out quicker will yield in lower injection pressure. This is what you're after, you could throw a 30% nozzle on a stock injector, but I think you'll see an increase in performance with the added fuel capacity in the barrel.

I'd look into the new MAD turbos, they seem to be working very well. Running one of these with 155/30s with good tuning you will be smoke free and have a tow monster.

 

[IdahoF350]

Yup, popped a set of victors under ARPs after around 20k, replaced with OEMs under ARPs that are in the truck right now with barely 1500 miles on them. I'm about to pull the engine because it developed a hell of a lifter tick shortly after the last set of gaskets went in.

This go around is only happening because I found an incredible deal on a very complete engine, as in turbo to pan, fan to flex plate, FICM, etc. otherwise I had planned a Cummins swap and was looking for a 6.7 to dress like a '05 5.9 for a california compliant swap.

My next big push is going to be getting someone to work with me on the FICM tuning. I've been tuning the engine with SCT software since 2007. There are specific areas relating to the actual running of the engine that aren't addressed through the ECM tuning. If I can address those areas through the FICM I can accomplish what I'm looking for, namely an earlier torque peak down around 1600-1800 RPM. I should also be able to realize lower cylinder pressures across the entire operating range. I'll cross that bridge once the engine is in.

 

[IdahoF350]

Getting the same amount of fuel out quicker will yield in lower injection pressure. This is what you're after, you could throw a 30% nozzle on a stock injector, but I think you'll see an increase in performance with the added fuel capacity in the barrel.

I'd look into the new MAD turbos, they seem to be working very well. Running one of these with 155/30s with good tuning you will be smoke free and have a tow monster.

Actually, I want to be able to put the fuel in over a few more degrees of crankshaft rotation. The larger volume injector (even with a larger nozzle) will allow that with the same injection control pressure. The idea is multi-faceted in that doing it the way I propose, I don't have to ramp up the ICP in the tuning to deliver the fuel, I can increase the degrees of crankshaft rotation covered by the injection event, and I don't risk completely emptying the fuel injectors of fuel during the injection process, also the stock fuel system will be able to adequately support these injectors this way.

Oh, and getting the fuel out quicker will just result in more smoke and that goes against what I'm trying to accomplish.

 

[dohcter]

heres my truck on a dyno. I have idp moderate 58v ficm, xrace tune, warren 155/30s stock turbo and fuel system. havnt dont much towing but no smoke until it gets a heavy foot. A slight haze every so often from a stop sign.

http://www.youtube.com/watch?v=J36gPCd2hnE

 

[strokin6L]

heres my truck on a dyno. I have idp moderate 58v ficm, xrace tune, warren 155/30s stock turbo and fuel system. havnt dont much towing but no smoke until it gets a heavy foot. A slight haze every so often from a stop sign.

http://www.youtube.com/watch?v=J36gPCd2hnE

Nice truck...what did it dyno?

 

[dohcter]

It did 480rwhp. Didn't get a tq rating