Blue Cps Tested

[BIG JOE]

Ok, this is'nt directed back at you FOMOGO But, I think it would be incorrect to group this into the on-going Debacle of Air Filter, Oil Filter brands.... It would be Mis-information based on Conjecture, if we condemn it to that "File", based on ONE set of test data. We get enough of that on the Nightly News. [img]/ubbthreads/images/graemlins/wink.gif[/img]

All this Blue CPS is, is an alternative CPS to >concider< if/when one fails.

Looking at the data from Jody and Doug's testing, it appears there ARE some losses and gains. (there's allways a trade-off) But it also appears that the losses and gains are not That significant when compared to what the long term (to date) practical application shows, in creature comfort, SOTP results.

To see Less Smoke. To have a Smoother, Quieter idle. To feel a bit more pep. To gain a bit of MPG ?.... for the same price as a tank of fuel ?.... it's worth a Shot.

Try one first. Then "FILE" it...

[img]/ubbthreads/images/graemlins/shrug.gif[/img]

[BBBxcursion]

Thanks Dennis, you explained to me EVERYTHING I wanted to hear about this 'blue' CPS. [img]/ubbthreads/images/graemlins/wink.gif[/img]

[Elephant]

My understanding is that the computer and CPS just become better friends over the miles. 2500 miles seems like enough time to become friends.

[THE4X4PIG]

I have had my blue cps in for three tanks now (about 1000 miles) and the truck cold starts better and runs smoother and quieter. I have lost fuel milage though. I used to get about 320 miles on a tank of fuel and since I put in the blue cps I have yet to break the 300 mile mark. Its been more like 280-290. I have not done an exact milage calculation but I have lost fuel milage. I did not do any other mods to my truck since the install of the blue cps. either the cps does not like my truck or something else went wrong at the exact same time I put the sensor in. Kind of a bummer cuz I really like how it runs now.

[speedjunkie]

Blue/Black CPS, what about a third? Is there still another CPS alternative that has yet to be made public? I thought I read somewhere in the CPS bible thread that a new more reliable CPS was in the works by one of the sponsors, vendors, joe smow, etc? Anybody have any input on this?

[dsldandually]

I think its the red one [img]/ubbthreads/images/graemlins/phoney.gif[/img]

[hamhock]

<font color="blue">BLUE </font> for the boys and <font color="pink">HOT PINK </font> for the ladies.

[pandersen]

Thanks for the effort in getting some science in this debate. I'm assuming ( very dangerous to do by the way) that this testing was done in stock mode. I put in the Blue CPS about 3000 miles ago and found a perceptable difference in stock mode. The truck felt more like it had a chip in, that is a little more positive response. However, using my tow or performance mode of my chip I haven't noticed a perceptable change. As for milage, I calculate my mileage at every fill up and always fill to the brim. Note to self: Do Harpoon Mod as it takes forever to get the last 3.69 gallons in! Anyway I have seen a decrease in milage. Now it may have to do with the difference in winterblend fuel and temperatures. I happen to put this mod in when the temperature finally dropped to our winter conditions. I will reserve judgement on milage until we get to a more suitable test period with consistant temperatures.
Just my observations.

[BadTrukRisin]

I think that using this BLUE cps will have different results depending on each engines biological makeup, ie, what modifications have been done to the engine and sensors, fuel supply, etc... So it would give completely different results depending on what you start with. Apples to Oranges as they say. One step forward may be a step back for others and so on. As one poster said, "try it, if you like it, keep it". [img]/ubbthreads/images/graemlins/biggrin.gif[/img]
Bud

[Dubco1]

The blue CPS will not have different results on different trucks. Plan and simple it mechanically pulls timing out of the motor, period. Now different trucks with different PCM programs and different aftermarket items will all perform differently. No disagreement on that here. But facts are facts. Timing is mechanically retarded by the blue CPS.

I have already stated that my truck had better idle qualities. Better fuel mileage but it made it smoke heavily while running the Blue CPS.

Jody had already done live tuning on my truck in my town and had the smoke down to almost zero in my 120 horse program. Only a slight puff when you first open the throttle. Then it cleared up and ran strong. Changing to the Blue CPS caused lots of smoke in the 120 horse program and it never cleared up.

For those of you that are asking all the testing was done in Jody's 80 horse economy program. With a PMT1 based program.

FOMOGO

[mythreesons]

My question is; Will the blue cps have a negative effect on the long term life of the engine? If you are changing the combustion temperatures by retarding the timing will this cause the engine to fail quicker? I'm not that concerned about making my 7.3 sound more pleasant to my ears if that was the case I would have bought a V-10. But to get 1 to 2 more mpg at the cost of fuel gets my attention, but not at the cost of premature engine failure.

[IA712]

I have to agree with you that, THAT, is what was going through my mind. I understand different strokes for different folks and I really do appreciate everyones efforts in testing and coming up with conclusive answers. I classify this as similar to the Tymar vs. AFE Stage 2 argument.
I guess the deciding factor for me is whether or not the blue CPS has detrimental long term effects on the engine. I know some have ran it for quite some time without any problems, but has anyone tested this thing for 50-60K and/or over a years period or more? [img]/ubbthreads/images/graemlins/phoney.gif[/img]

[Suns_PSD]

The "blue CPS" retards timing slightly.

Many chips advance timing and some of them advance the timing excessively.

If your timing is overly advanced by your chip than the "Blue CPS" will offer an improvement in mpg as it retards the timing a bit.

If your timing is stock, you will likely experience a decrease in mpg going to the "blue CPS" as the timing will become overly retarded. Smoke will likely increase as will egts very slightly.

If your engine has custom programming w/ CP testing your timing can NOT get any better and changing the CPS to the differing model will only make it run worse.

The CP scans that were described are very consistent w/ slightly retarded timing. There are 2 CP peaks. One represents the volume of the injection event itself and the other represents peak combustion vs. volume in the cylinder at that moment. (I'm not 100% sure on these truly being the reasons it's just my best guess of what I have theorized after looking at CP graphs) Good programming should make these humps just touch each other creating a nice steady combustion hump that does not peak to high. If the timing becomes too retarded the heat to ignite is less resulting in a longer diesel delay resulting in a delayed 2nd CP spike that of course will fall off sooner as the piston is quickly moving away at this point.

Maybe the "blue CPS" has a sharper signal but that is another issue that may or may not improve how the engine runs assumming the timing factor has been removed from the occasion.

Clear as mud?

[stroke03]

I will chime in here. My CPS shut me down at 60,000 miles. Started back up and got me home. I researched this post last week and thought I would try the blue one as it is the same price as the black. My results are unimpressive. The throttle feels "soggier", no decrease in noise, no better cold weather starting, same boost and EGT's. As well, my fuel mileage is in the toilet on this tank. I am going to run more fuel through it to see if it was a fluke as I have been getting on it to try it out on this one. So far, I wish i would have stayed with the black one. Have 115 miles on it.

[haul_n_horses2]

[Sarcasm on] How can that be? Did you forget to disconnect the battery cables when you installed the CPS? Did IH tell you the special incantation you have to say over the CPS before it was installed? [Sarcasm off] Why would you want to undo some of the programming you paid a reputable tuner to perform?