Stage 1s or Stock Injectors?
#16
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#19
As for economy, I'll let you be the judge.
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#21
Hey guys. At 302,000+ miles I'm pretty sure my factory injectors are getting weak. I talked to Jody at DP Tuner and he recommends stock or Stage 1s. I was really only seeking a reliable replacement and not more power but he says Stage 1s should last longer because of the single shot design.
I am intrigued by the rumors of better mileage, longer life, and the same cost as stock.
I have given Jody my concern and I'm awaiting his response, but I will lay it out here so I can gather your opinions.
My concern is: I currently have an F5 with no other mods to my Ex. I do not abuse my truck or tow outside the weight suggestions provided by the DP tuner website. For this reason I passed on getting guages to monitor EGTs, etc. In the last 30,000 miles it has not come back to bite me. I really don't ever worry about it in its current form. Do you think Stage 1s with my tuner modified to accomodate them, would be any reason for more concern about not running guages? I don't want to run guages. If its an absolute must with my treatment of my vehicle, then I feel these injectors are not for me.
Basically I was content with the power I have with my F5 chip and everything else stock and original. But if there are really no negatives to going to Stage 1s and the price is the same, I may go for it.
Thanks in advance for your valued opinions/experiences.
I am intrigued by the rumors of better mileage, longer life, and the same cost as stock.
I have given Jody my concern and I'm awaiting his response, but I will lay it out here so I can gather your opinions.
My concern is: I currently have an F5 with no other mods to my Ex. I do not abuse my truck or tow outside the weight suggestions provided by the DP tuner website. For this reason I passed on getting guages to monitor EGTs, etc. In the last 30,000 miles it has not come back to bite me. I really don't ever worry about it in its current form. Do you think Stage 1s with my tuner modified to accomodate them, would be any reason for more concern about not running guages? I don't want to run guages. If its an absolute must with my treatment of my vehicle, then I feel these injectors are not for me.
Basically I was content with the power I have with my F5 chip and everything else stock and original. But if there are really no negatives to going to Stage 1s and the price is the same, I may go for it.
Thanks in advance for your valued opinions/experiences.
#23
Tugly that mileage may have just pushed me over the edge depending on what mileage you got pre injector swap. My ex rarely sees that mileage but I know some lighter trucks might.
Thanks Bobbys and Franko for the feedback! I'm feeling better about the idea of stage 1s. I need to look around for a bung/sensor/egt gauge kit.
Thanks Bobbys and Franko for the feedback! I'm feeling better about the idea of stage 1s. I need to look around for a bung/sensor/egt gauge kit.
#24
Tugly that mileage may have just pushed me over the edge depending on what mileage you got pre injector swap. My ex rarely sees that mileage but I know some lighter trucks might.
Thanks Bobbys and Franko for the feedback! I'm feeling better about the idea of stage 1s. I need to look around for a bung/sensor/egt gauge kit.
Thanks Bobbys and Franko for the feedback! I'm feeling better about the idea of stage 1s. I need to look around for a bung/sensor/egt gauge kit.
The ONLY negative to running single-shots is a little more noise and good tuning will mitigate that. Stage 1's or even Stage 2's (160cc/80% nozzles) run lower EGT's and can acheive higher MPG's than split-shots. The advantage is being able to inject the same amount of fuel in less time. The sooner the injection event begins, the higher CP's (cylinder pressures) will be and the longer it extends, the higher EGT's will be and the more SMOKE it will make.
With AC codes (160cc/stock nozzles), GTP38R and good tunes I struggle to hit 1200* while towing at a dyno'ed 320HP. Even in my highest tune (dyno'ed 370HP), its hard to get EGT's into the red, unloaded of course - but I would never drive anything but a 100% stock diesel without a pyro.
Fwiw, I drive in my 60tow tunes (X has stock injectors - F350 running AC codes) pretty much all the time. There is NO smoke in these tunes and the trucks are very responsive and FUN to drive.
I recommend the Aeroforce Interceptor Scangauge. This TOOL will not only display every parameter the engine monitors and also give you EGT and Fuel Pressure with additional sensors - it also does Buzz Test and Cylinder Contribution Test. With this information and your friends here at FTE, you will likely never need to go to the stealership again and will know if your mechanic is ripping you off should you not be able to fix it yourself. You can mount it in the dash just to the right of steering column and would not even need a gauge pod.
#26
Jason-Great knowledge you just dropped on me. Thanks! That scanguage looks perfect! Im pretty sold on stag 1s but i am still worried about my original factory tranny s little. it has never skipped a beat though and im thinking with my very easy driving style it will hold up to the injectors and tuner using some common sense. I do have a question about it though. It says it can display PCM calculated egt. Does this mean I can get away with not drilling into the exhaust and mounting a sensor?
#27
Tugly that mileage may have just pushed me over the edge depending on what mileage you got pre injector swap. My ex rarely sees that mileage but I know some lighter trucks might.
Thanks Bobbys and Franko for the feedback! I'm feeling better about the idea of stage 1s. I need to look around for a bung/sensor/egt gauge kit.
Thanks Bobbys and Franko for the feedback! I'm feeling better about the idea of stage 1s. I need to look around for a bung/sensor/egt gauge kit.
#28
Awesome. I'll be standing by for your mileage report after the weekend. You probably are getting better mileage, but my chip made my lie-o-meter about 3mpg optimistic. It was dead on before. So Hand calculate your numbers before having confidence in the lie I meter. Honestly it's the mileage and longevity potential that makes me want the stage 1s. I wouldn't spring full price for then if i didn't need injectors, but I need injectors, so I feel like its worth the little extra money.
#29
Jason-Great knowledge you just dropped on me. Thanks! That scanguage looks perfect! Im pretty sold on stag 1s but i am still worried about my original factory tranny s little. it has never skipped a beat though and im thinking with my very easy driving style it will hold up to the injectors and tuner using some common sense. I do have a question about it though. It says it can display PCM calculated egt. Does this mean I can get away with not drilling into the exhaust and mounting a sensor?
I dunno how the PCM could accurately predict EGT. Get the sender and you'll know exactly what's going on. Drilling and tapping the exhaust manifold is a piece of cake. Don't get overly stressed about metal shavings, etc - drill the hole, tap it a little at a time checking the fitting until you get a good depth (don't tap it too deep - ya don't want the fitting to 'bottom out', but you want good thread engagement). Then vacuum the hole and run a bent nail on a magnet around inside the hole if ya want. A few tiny filings are not gonna hurt anything and will quickly be blown thru the turbo's exhaust wheel as soon as ya start the truck.