remapping why, dont wast your money Options

[chad]

i dont want to seem like i know everything but i went to a motorcycle school. and im a full time technition. i have a ltr450. now all you guys put pipes and air filters , cams . and ect. then u put a powercomander on there to remap your ecu or ecm. whats the point isent that the point of efi. aslong if your spark plug dont get white or to black your mappin is fine. if you think your smarter then all your sensors that are monitiored by your ecm 100 times a second, you are god !!!

i have a punch of mods and mine runs perfect. with out a comander . using a comander could be bad if you dont no what u doing . and you cant remap good enuff with out a dyno.

[LTR-ERICK]

i dont want to seem like i know everything but i went to a motorcycle school. and im a full time technition. i have a ltr450. now all you guys put pipes and air filters , cams . and ect. then u put a powercomander on there to remap your ecu or ecm. whats the point isent that the point of efi. aslong if your spark plug dont get white or to black your mappin is fine. if you think your smarter then all your sensors that are monitiored by your ecm 100 times a second, you are god !!!

i have a punch of mods and mine runs perfect. with out a comander . using a comander could be bad if you dont no what u doing . and you cant remap good enuff with out a dyno.

I agree and disagree with ya the cherry bomb supplies enough fuel for any pipe when used with the stock air box K&N or not. I ran a HMF full system and a ProDesign K&N no lid, and the bike still ran rich. But I have no doubt in my mind had I had a PCIII on my bike and got it tuned I would have had even more power. On guy over on the hq said he was running a hot cams intake, Full Pro Circuit pipe, and a open box with just a cherry bomb. WITH OUT IT YOU ARE LEAVING POWER ON THE TABLE PLAIN AND SIMPLE IF IT IS TUNED PROPERLY. Even a stock bike could benefit from a PCIII. And what constitutes a bunch of mod's?

[jadwr]

the ltr fuel injection is pretty basic. without a mass air flow sensor to measure the amount of air the engine is taking in and O2 sensor to measure the amount of fuel the engine is burning, the ecm cannot add or remove fuel efficient enough for major mods. I have an 06 with full exhaust and a box eliminator and I was a touch lean.

[ltrocket]

I would have to agree with Ltr Eric. I worked for a custom motorcycle shop for a while where they did dyno work and my boss there was the master tuner for the super bike series for years, he told me that every stock machine, quad, dirt bike ,motorcycle all come to rich from the factory to meet emissions. he has gotten upto 10hp or more out of stock harley's just from tuning the motor, so I would have to say a power commander is a better investment than a pipe or filter combined!!
I also have many mods done to my quad with no power comander or tuner and she run's fine but that doesn't mean I am getting the gains that I could be getting without one!!! In reality I'm not really getting what i paid for until I get one
the stock efI can only adjust so much.If you ask me your throwing your money away on a pipe if anything seeing that most of the pipes out there give you very little gain.

BOTTOM LINE PCII IS WORTH IT!!!!

[FUELATV]

If you think that the PCIII is not worth it, think again! Checking your spark plug, doesn't tell you whether or not you are running too lean.... Yes, you can tell if you are running too rich but that doesn't matter. If you are running too rich, you are not getting your full hp... You will do damage to your engine if you are running too lean!!! The PCIII or other controllers also help get the correct tuning to get the most hp out of your bike! Just by adding a PCIII you can gain a few hp, making the money spent worth it.... For one, you get the most hp and best performance from your bike and two, you have the piece of mind that you aren't doing engine damage.....

Do your research! It is NOT worth it to run without a controller!!!

This post has been edited by FUELATV: Apr 22 2009, 02:33 PM

[quadboy-55]

oh wow buddy. ATV's aren't equipped the sensors that the automotive industry installs there vehicles with. Just to prove. Point when I added my dasa I tried it with just a crbm and it ran like jizz untill I added the pclll. I don't know what's going on in you're mind but I think you want evryone elses quads to run like crap. If you have any mode on you're bike with out ANY jetting/ FI. Changes I want you to plug in an O2 "sniffer" into the end of you're pipe and we'll see how it runs. It is true however that with a crbm you can get away with most pipes and a few drop in filters and a good cam but it is never a bad idea to invest in a pclll.

[chad]

the ltr fuel injection is pretty basic. without a mass air flow sensor to measure the amount of air the engine is taking in and O2 sensor to measure the amount of fuel the engine is burning, the ecm cannot add or remove fuel efficient enough for major mods. I have an 06 with full exhaust and a box eliminator and I was a touch lean.

the ltr450 has the same base sensors off a gsxr 600. it can do it all. when u use a pcs. you can only change the amount of fuel. if you want big changes change your timing , i wouldent use a power comander. i took a dyno class. and we got better results out of other controllers.

This post has been edited by chad: Apr 23 2009, 03:31 PM

[jadwr]

the ltr450 has the same base sensors off a gsxr 600. it can do it all. when u use a pcs. you can only change the amount of fuel. if you want big changes change your timing , i wouldent use a power comander. i took a dyno class. and we got better results out of other controllers.

I agree, changing the timing will help, however if you are doing mods that effect the amount of fuel the engine will require, and the ecm has no way of sensing if it is lean or rich, you can do damage to the engine. I ohnestly no nothing about gsxr 600's, mostly I deal with automotive, but from my understanding of fuel injection, without the o2 and maf sensors, the ecm is limited. I dont own any controllers so I have no opinion on them, but i do believe there is a need for one with some mods.

[LTR-ERICK]

I agree, changing the timing will help, however if you are doing mods that effect the amount of fuel the engine will require, and the ecm has no way of sensing if it is lean or rich, you can do damage to the engine. I ohnestly no nothing about gsxr 600's, mostly I deal with automotive, but from my understanding of fuel injection, without the o2 and maf sensors, the ecm is limited. I dont own any controllers so I have no opinion on them, but i do believe there is a need for one with some mods.

Correct this bike run's and open loop FI system and requires a fuel map adjuster of some kind to adjust the fuel for performance mods such as Pipe's, intakes, cam's etc. It can make changes to compensate for air temp, and elevation though.

[quadboy-55]

yep, true that... true that.

[paden08]

i have a 07 gsxr and a 06 ltr the fi system on the gsxr is way more complex than the quad, the gsxr has O2 sensors and mass flow sensors. and even with all that stuff ive always been told if i want to mod out the gsxr i would have to get a programer for that too. so my ltr i think only has a temp sensor and loaded maps if you want to mod your ltr you should get a programer. the only reason they are running fine with the cherry bomb is because it is just dumping more fuel than you need to be safe. if you think about it if a pc3 saves your motor from blowing up once it pays it self off, or if it helps save fuel it will pay it self off in no time, especially when your spending $6/gallon like me.

[Redbullrider111]

i have a 07 gsxr and a 06 ltr the fi system on the gsxr is way more complex than the quad, the gsxr has O2 sensors and mass flow sensors. and even with all that stuff ive always been told if i want to mod out the gsxr i would have to get a programer for that too. so my ltr i think only has a temp sensor and loaded maps if you want to mod your ltr you should get a programer. the only reason they are running fine with the cherry bomb is because it is just dumping more fuel than you need to be safe. if you think about it if a pc3 saves your motor from blowing up once it pays it self off, or if it helps save fuel it will pay it self off in no time, especially when your spending $6/gallon like me.

no doubt tell me about it my race gas is $8 bucks a gal so i want to save as much fuel as i can, lol. I love my power commander and wouldn't ride a day without it.