I'm sure this question has been asked a bunch but I couldn't find anything in my search.....

I have a 2008 scab 4x4 5.4 that I bought stock. I took off my gotts mod in favor of a air force 1 Cai. They intake made a huge difference and the truck runs good except when I punch it wot from a dead stop the truck starts off strong as hell but right before it goes to shift to 2nd it falls on its face for 1 second then comes back alive... I also have a lift and 35s not sure if that had any effect just trying to give all the info I can.. would the mass air cause this or do I need a tune or programmer.. any particular brand..? Is it ok to drive with it on I have no check engine light on.

Thanks

 

Any time you relocate a slot style maf out if its stock oem airflow orientation its custom tune time....that's what happens when a cai is installed.....

35" tires.....hopefully you regeared to 4.56

Its okay to drive but don't romp and stomp it.

Contact mike at 5startuning or justin at vmptuning

Also check out the how to forum on cleaning your throttle body, maf, and changing your fuel filter...

Take care .....

 

With regards to “Chips” and “Tuners”, years ago it was the best that most could do to enhance the ignition timing, fuel curve, transmission shift points, etc. It was (and still is) very important that a person verifies that the “Tuner” is ASE certified in both ECM and Transmission programming and IMHO be have current certification by the OEM whose vehicle you want to modify. There are plenty of persons who advertise their programs to be the best and even offer custom tunes, but in all reality, very few actually have credentials in these areas- but that’s not to say that some of these “geniuses” haven’t really caused damage to a few vehicles- just jump over to flatratetech.com and read just some of the comments from the MSE techs!. Perhaps what is equally important is the parameters that can be adjusted are set by the OEM vehicle software…so there is really no “magic” in what they are doing anyway. Now about this new marketing hype that if you have a CAI you need a custom program………….hogwash!!!!!! The OEM software system is designed to adjust the fuel mixture up to 10%.......that’s more than enough to handle fuel mixture adjustments up to 7,000 foot elevation change! (for high elevations 8,000+ there are oem software programs for those specific applications) The 5.4 V8 for example if close to stock can only suck in a maximum of 480 cfm and a flat panel filter will flow 500 cfm, there is simply no way any CAI on a relatively stock engine can increase the air flow enough to exceed the ECM’s ability to adjust and maintain the correct fuel mixture. The only reason for the “custom” program to support the CAI is because the design is poor resulting in false readings from the air intake sensors, etc….period! If you look at the dyno charts from many of these supposed HP/TQ increases, they are typically around 5%-7% at peak rpm ranges…….guess what, 5% is a standard deviation even amoungst mfg dynos and the most important item is……these “expert tuners” (at least most) do not have or choose not to test their results (in comparison to the oem intakes) during actual vehicle motion (or simulation- such as a wind tunnel) as the oems do. What many view as an issue (is the plastic intake tube with its noise canceling design) actually increases air pressure. It is the same hydraulic concept used by fire fighters creating water supply where psi is low. By having the air cross the path at a 90 degree angle, the pressure is increased proportionally. Fire fighters use what is called a “4-way valve” or “Blake Valve” at the hydrant where the water is cycled through the fire engine (pump) and sent back into the valve crossing the water flow at a 90 degree angle. In this case it also acts as a sound canceling device! At low speeds, this can reduce the flow a tad (which is what most “feel”), but in terms of peak hp/tq, a good high flow filter is all that is needed.

Recently, Testand Corporation conducted an ISO standards test on automotive air filters which can be viewed at this link: http://www.dieselbombers.com/chevrol...r-testing.html. All I can say is this explains in detail the reason for

(Arlen) SPICER wrote,

“Now that I am not doing the tests and my objectivity is not necessary, let me explain my motivation. The reason I started this crusade was that I was seeing people spend a lot of money on aftermarket filters based on the word of a salesperson or based on the misleading, incomplete or outright deceiving information printed on boxes and in sales literature. Gentlemen and Ladies, Marketing and the lure of profit is VERY POWERFUL! It is amazing how many people believe that better airflow = more power! Unless you have modifications out the wazoo, a more porous filter will just dirty your oil! Some will say " I have used aftermarket brand X for XXX # years with no problems. The PROBLEM is you spent a chunk of ching on a product that not only DID NOT increase your horsepower, but also let in a lot of dirt while doing it! Now how much is a lot? ANY MORE THAN NECESSARY is TOO MUCH!

Others are persuaded by the claims of aftermarket manufacturers that their filters filter dirt "better than any other filter on the market." Sounds very enticing. To small timers like you and me, spending $1500 to test a filter sounds like a lot. But if you were a filter manufacturer and you believed your filter could filter dirt better than any other media on the market, wouldn't you want to prove it? Guess what. Test your filter vs. the OE paper. It will cost you $3000 and for that price you will have the data that you can use in your advertisements. Your investment will be returned a thousand fold! EASIER than shooting fish in a barrel! So why don't these manufacturers do this? Hmmm? Probably not because they would feel guilty about taking more market share.



Now I am not saying that ALL aftermarket filters are useless. A paper filter does not do well if directly wetted or muddy. It may collapse. This is why many off-road filters are foam. It is a compromise between filtering efficiency and protection from a collapsed filter. Now how many of our trucks collapse their filters from mud and water? However, if a filter is using "better airflow" as their marketing tool, remember this....Does it flow better? At very high airflow volumes, probably. BUT, Our trucks CAN'T flow that much air unless super-modified, so what is the point? The stock filter will flow MORE THAN ENOUGH AIR to give you ALL THE HORSEPOWER the engine has to give. And this remains true until the filter is dirty enough to trip the air filter life indicator. At that point performance will decline somewhat. Replace the filter and get on with it.


IMHO, if you live near any major city there are excellent tuning specialists with dynos who for the same price (if not less) will tune your vehicle taking into consideration your specific needs including environmental conditions, for your specific vehicle. IMHO, the best bang for the buck!

 

Thank you sir

 

Although most on here will tell u to get a tuner with custom tunes, which are good, just more expensive, there are alternatives such as the diablosport that have tunes for cai out of the box. I have the diablosport predator with k&n tune. Paid 285 for it although it may be cheaper now, and it will also allow u to change tire size and get your shift points back in line. Not for sure that it has one for your cai, but u can check online to see. It has I think 5 or 6 different tunes for cai.

 

Have you had the diablo for awhile I think this might be better for me.. I don't plan on doing a lot more maybe exhaust and a bigger lift

 

Do you need custom tunes for the edge?

 

You need tunes that are customized for the CAI. The Edge canned tunes are not in that category.

- Jack

 

Since January. No problems with it at all. Not selling u on it, just letting u know there are alternatives. With the intake, exhaust and programmer the truck is responsive and I still get around 16 mpg mixed with mild 33s. Setting it up is easy as well.

 

no reason to settle for a substandard canned tune when you can get a solid custom tune for better gains for the same money (if not less)

 

just had my 08 5.4 tuned by troyer and could not be happier. wish i did it sooner

 

The DiabloSport Predator U7151 or Trinity T1000 will both work perfect with your truck and come Pre-loaded with CAI Tunes.

 

Have any of you guys actually opened up one of our canned tunes in an editing software to see what they look like?
Would you know a 'good canned tune' vs. a custom tune if you saw it?

I have said it many times, unless you are seeking something very aggressive in a tune, our 'canned' tunes are an excellent alternative to the custom tunes you guys seem to think are required for every vehicle here
We also offer more end user adjustment than most any tool, meaning you have the ability to customize the tune to your liking, nobody is stuck with the out of the box tunes ....

Just because you guys have decided that the Edge canned tunes are no good, doesn't mean that holds true across the board...

Thanks

EDIT, I have questions....do you guys do extensive datalogging when you get these custom tunes?
Or are you all just getting what basically amounts to someone elses canned tune that they send everyone with an F150?????
If thats the case, how does someone who has never seen your truck have a better chance at tuning it than us, when we spend weeks, sometimes months, developing our tunes here, in person, on the dyno?
I am truly just curious

 

I guess not

 

You are correct. Your canned / custom tune is probably as good as anybodies!

You make some valid points. A few years ago the standard on this forum was custom tuning with datalogging and retuning. At this point in time my guess is that 99% of the tuning discussed here is plug and play value files, sorry to say.

Thanks for your support.