my new "Wait4me performance" PCM...

[phunk]

Just run 93. When I first did my W4M PCM tune and put it on the dyno, I still had a tankful of 89 octane. I could see in the dyno graphs that it was detecting knock and diverting to a less aggressive timing map. Power would flucuate up and down about 5-8rwhp as it swapped back and forth between timing maps as it would detect knock and pull timing, then put it back in. So if you want the gains, keep it on 91-93 octane.

[556mm]

thanks phunk. what did you request for your PCM. i know the basics like better gas mileage, higher shift points, and no speed limiter but what other things can i request. i'm ordering mine tomorrow so i wanna make sure i get the full benefit.

[phunk]

i told them that i wanted the torque management taken care of (either removed or drastically reduced, whatever it is they do with it), and that I run 93 octane and want it tuned as aggressive as possible within reason. thats about all i said. i sent them my PCM out of my truck so I didnt have to do the crank relearn procedure.

my shift points were not raised, probably because i told them my truck is 100% stock otherwise. after I install the cam I will probably have to send it back and get the shiftpoints raised.

[556mm]

hmmmm when i talked to hannah she said i didn't i have to do a crank relearn. my truck is a 96. i guess because yours is newer that's why. thanks for the info man. my truck is pretty much stock too other than a CAI and spintech muffler.

[Crew Cab Sonoma]

i believe the crank relearn only applies to 98-later models.

[s-10hater]

[S10Wheels]

Quote: Originally Posted by suncad03

it sad on the site they are setup for both 87 and 93 and the pcm can adjust for it

I talked to Hannah via.e-mail, this is what she said, Here is some info on what we can do for typical mileage and horsepower gains:
87-90 octanes will get 1-2 miles per gallon better gas mileage and 15-20 more horse power.
91-93 octanes will get 2-4 miles per gallon better gas mileage and 20-30 more horse power.
This will very depending on driving habits and quality of gas used. Using 10% or higher ethanol content decrease gas mileage as it is a filler. You are never locked into 1 or 2 different octanes of gas, Jesse makes the PCM a lot smarter than stock. Any time you change the octane of gas the PCM will automatically adjust all of the parameters for that octane so you will always see the maximum benefits everytime.
She went on to say that I didn't need to send in my PCM, only my Vin. #, from that Jesse could see everything about my truck including the CKP mapping. She also said that "Jesse doesn't beleve that the torque management needs adjustment", but he will do it if you ask.
Keep in mind that this may only apply to my year, eng. condition (stock), etc. Ask, Hannah has no problem answering all your questions.

[556mm]

Quote: Originally Posted by Crew Cab Sonoma

i believe the crank relearn only applies to 98-later models.

werd thanks crew

[bigjoewebb]

whats their website or phone #?

[556mm]

http://www.wait4meperformance.com/

[xxosiris9xx]

Quote: Originally Posted by S10Wheels

I talked to Hannah via.e-mail, this is what she said, Here is some info on what we can do for typical mileage and horsepower gains:
87-90 octanes will get 1-2 miles per gallon better gas mileage and 15-20 more horse power.
91-93 octanes will get 2-4 miles per gallon better gas mileage and 20-30 more horse power.
This will very depending on driving habits and quality of gas used. Using 10% or higher ethanol content decrease gas mileage as it is a filler. You are never locked into 1 or 2 different octanes of gas, Jesse makes the PCM a lot smarter than stock. Any time you change the octane of gas the PCM will automatically adjust all of the parameters for that octane so you will always see the maximum benefits everytime.
She went on to say that I didn't need to send in my PCM, only my Vin. #, from that Jesse could see everything about my truck including the CKP mapping. She also said that "Jesse doesn't beleve that the torque management needs adjustment", but he will do it if you ask.
Keep in mind that this may only apply to my year, eng. condition (stock), etc. Ask, Hannah has no problem answering all your questions.

yer info works well for me....03 v6 basically close to stock minus a filter muffler n low temp tstat...oh yeah and the hype-rtech i kinda wanna get rid of now

[Jetmeck]

20 hp gain from a tune. Anybody very this ?

[hivoltagedriver]

I haven't dyno'd mine, but the S.O.T.P. meter says that 20HP is not unbelievable...

Not seeing the gas mileage increase that I expected though. I am getting about 17mpg all the time, which is about what i was getting before. I am still "breaking her in", but I drive pretty agressively all the time anyways. I have had it up to 4400rpm in overdrive though, which is way past the factory cut off.

[phunk]

Quote: Originally Posted by Jetmeck

20 hp gain from a tune. Anybody very this ?

i dyno tested it and got 5rwhp from it.

i would highly doubt anyone is getting 20 unless they have tons of complimenting engine mods

[Jetmeck]

Quote: Originally Posted by phunk

i dyno tested it and got 5rwhp from it.

i would highly doubt anyone is getting 20 unless they have tons of complimenting engine mods

Exactly what I thought and tuning for power is not in itself going to help mileage. In fact it normally hurts it.
So I don't know WTF they are thinking even saying that.

[s-10hater]

this is just my thought about the whole "20 hp increase". maybe if you have an intake,exhaust,pulleys,lower temp t-stat,headers & y-pipe,e-fan,basically what ever you can bolt on and not go inside the motor. if you get 1-2hp for every mod plus the "tune" you'll be right around 20.the more that is done to it the more you'll get out of a tune . i do know this , the newer the vehicle the more you get out of a tune.plus 1-2 mpg increase ain't to bad either.

[phunk]

the full throttle was leaned out a bit from stock when i dyno tested it, that will increase power as long as you dont go too lean, and of course leaning it out will always help mileage. under cruising the air fuel is the same of course, as the factory tune is already setup for clean cruising and mileage under low load. to make power out of the higher octane fuel, ignition timing would be advanced, that will also increase mileage as you get more accelerate out of the same engine load, therefore placing the engine under less load all the time as it makes more power and accelerates with greater ease... so the mileage gains i would expect, im not sure how dramatic, but 1-2 mpg sounds pretty feasible to me.

[Toadz]

Quote: Originally Posted by Jetmeck

Exactly what I thought and tuning for power is not in itself going to help mileage. In fact it normally hurts it.
So I don't know WTF they are thinking even saying that.

Actually, if done correctly, tuning for performance will help mileage. Muscle cars back in the 60's and early 70's were able to get 20+ MPG while still pushing out 300+ HP. It's all the emission crap that ruins it.

[King_Ice_Flash2]

I asked if they could do a 2 bar speed density tuning and correct for larger injectors. It will be interesting to see what they have to say.

[blacksharpie]

Quote: Originally Posted by blacksharpie

Simply because of the Torque management i sold mt HTPP3 and ordered a tune, I should have it by Friday =).

Well i got my PCM in and WOW it feels like a totally different truck mostly because of the removed torque management. I think the power is slightly better than the HTPP3@93 octane, and i am much happier with the tranny now. I dont have a bad word to say about it, great service and well worth selling my HT. Chalk this up as another for W4M!

[556mm]

Quote: Originally Posted by blacksharpie

Well i got my PCM in and WOW it feels like a totally different truck mostly because of the removed torque management. I think the power is slightly better than the HTPP3@93 octane, and i am much happier with the tranny now. I dont have a bad word to say about it, great service and well worth selling my HT. Chalk this up as another for W4M!

hell yeah man i can't wait to get mine

[s-10hater]

got mine the other day and can't wait to put it in.i'm just waiting on my new 160* t-stat . when i get that i'll put it in and let you all know how it is.

[Crew Cab Sonoma]

why wait on the stat? go ahead and install that PCM...

[556mm]

[s-10hater]

thats true , running hot won't matter as much as running cooler.i might see a little more once the stat gets here though.i'll get back to you guys sunday and give you a report.

[556mm]

just out of curiosity why are you geting such a low t stat?

[s-10hater]

why does everyone think a 160* is to low ? the killer of engines is heat and friction,right ? the lower i can keep the heat the better? plus is 160* really gonna make the actual temp of the engine that much cooler,i don't think so. my astro has had a 160 in it for 5 years and never had any problems even with the air on it ran at 180ish.i have the pcm programed for it so everything should be fine.

[King_Ice_Flash2]

Because the ECU will probably think it still in warmup mode, and you will get horrible fuel mileage. It is like cutting your grass with the choke on.

Your cylinders will accumulate more carbon, as the engine won't get hot enough to burn it off.

Even if it is not in warm up mode, you will have higher emissions and worse fuel mileage, however the lower combustion temp will allow you to run higher spark advance.

[Toadz]

Quote: Originally Posted by King_Ice_Flash2

Because the ECU will probably think it still in warmup mode, and you will get horrible fuel mileage. It is like cutting your grass with the choke on.

Your cylinders will accumulate more carbon, as the engine won't get hot enough to burn it off.

Even if it is not in warm up mode, you will have higher emissions and worse fuel mileage, however the lower combustion temp will allow you to run higher spark advance.

Exactly. These engines are made to run at 190-200 degrees. If they weren't, they would have come with 160 degree thermostats from the factory.

[s-10hater]

well to the two post above me . I HAVE MY NEW PCM PROGRAMED FOR THE 160* STAT !! ACTUALLY , IF YOU READ WHAT IS WRITEN THEN YOUR POST ARE USELESS.

on a side note,i put the new pcm in and got a ses light . the trans wouldn't down shift.i e-mailed jesse to see what he says.put the stock pcm back in and it was ok so it has to be the one from w4m.

[s-10hater]

oh and one more thing about the 190-195 stats . the factory uses hotter stats mostly for emissions , the hotter the engine the less emisions it makes.or atleast that is what i have read.

[King_Ice_Flash2]

Quote: Originally Posted by s-10hater

oh and one more thing about the 190-195 stats . the factory uses hotter stats mostly for emissions , the hotter the engine the less emisions it makes.or atleast that is what i have read.

I think running the engine hotter gives off less HC emissions, but more no2 emissions, which the cat takes care of, but I am not sure. But yes, it is primarily for emissions/fuel economy.

[Toadz]

Quote: Originally Posted by King_Ice_Flash2

I think running the engine hotter gives off less HC emissions, but more no2 emissions, which the cat takes care of, but I am not sure. But yes, it is primarily for emissions/fuel economy.

Actually running hotter causes more emissions. That's what the catalytic converter is for. I believe the hotter it is it produces more NOX? Or something like that.

So what are you running the lower thermostat for? Are you advancing your timing?

[BlaZerFreaK92]

where can you get this done???? can someone please PM me im super interested in doin this to my blazer!!!!

[King_Ice_Flash2]

*Points up* Look at post 110 on this page.

[xxosiris9xx]

my 160* is fine...gas mileage is fine...and itll be fine whenever i can get a W4M tune...i need to try and figure it out and sell my old shit tho...still...

[02_Black_XBlazer]

Quote: Originally Posted by xxosiris9xx

my 160* is fine...gas mileage is fine...and itll be fine whenever i can get a W4M tune..

Sounds good, just don't make any horsepower claims, real or otherewise, or else the "Jetmeck-Truth-In-Advertising-Police" will be straight up your ass, bro! That goes for all of you!

[hivoltagedriver]

Quote: Originally Posted by BlaZerFreaK92

where can you get this done???? can someone please PM me im super interested in doin this to my blazer!!!!

wait for it.....




wait for it..........





wait for it.................








http://www.wait4meperformance.com/



BTW, I am running a 160* Tstat in my truck also. Hypercrap reccommended it with thier tuner. I have just kept it in the truck...never had any problems, and I never noticed a difference (decrease) in fuel mileage with it in. My truck runs 180-190* on a hot day.

[Crew Cab Sonoma]

both of my trucks consistently go into closed loop mode at 133 deg F..... meaning they are using the o2 sensors to adjust to a stoich fuel mixture.

verified with my scan tool that can read live sensor data.

i am currently experimenting with a 140 marine thermostat in my truck....
still operating in closed loop, and still getting good fuel economy...

so dont believe the myth that cool stats hurt economy, or driveability...

[GRUMPY95]

maybe not economy or drivability but i'd bet that motor would build up alot more carbon deposits than one with the stock t-stat in.

[chevy power]

I looked into getting one of these 2 or so years ago, but not too many people had been getting them done. With all of these happy customers I might as well jump on the bandwagon. I remember seeing a list where I could pull a PCM from different vehicles that fit a 98 s10. I think RAT had sent me the link. Or do you guys think it will be cheaper to just buy one from him?

[s-10hater]

well i put mine in and the S.E.S light popped on when i took it around the block to see how it was . when i got to the stop light and went to take off the truck just bogged ,the trans was stuck in 3rd, i had to put it in 1st gear manualy.got to the next light and the same thing happened.
got home and put the stock pcm in and the trans was fine so the pcm must be f-ed.what do you guys think it could be ? i e-mailed jesse but he hasn't gotten back to me yet.

[phunk]

perhaps there was some type of error in the data transfer while programming your new PCM. i would just send it back, im sure they will take care of it for you.

[that1s10]

Got my pcm, dropped it in, did the crank relearn. Check engine light is off now but my security light is on. Anyone else run into this? I emailed Jesse at W4M but I think he's at the sema show.

[556mm]

he's not leaving for SEMA until oct 28th.

[bikeboyben14]

i got my pcm in and its great, its just as people say its a whole new truck!! runs great except for i got p0135 code and i dont know why. i have changed my front o2 sensors and did a full tune up. it comes on like every 16 miles after u clear it out

[Family Man]

Quote: Originally Posted by bikeboyben14

i got my pcm in and its great, its just as people say its a whole new truck!! runs great except for i got p0135 code and i dont know why. i have changed my front o2 sensors and did a full tune up. it comes on like every 16 miles after u clear it out

Read my post #22 above.

[hivoltagedriver]

Quote: Originally Posted by that1s10

Got my pcm, dropped it in, did the crank relearn. Check engine light is off now but my security light is on. Anyone else run into this? I emailed Jesse at W4M but I think he's at the sema show.

I am having the same problem. He said that it shouldn't even be running that way, and that the VIN may have been input incorrectly. My truck seems to be running fine though, even after a month. Just that damn annoying light.

[Slammed Chevy]

hey this is inprogress10 i'm on my friend's account. i got my PCM and put it in. i had them remove the torque management and i have noticed that going from park to drive the tranny shifts hard. is this normal? it only does it in 1st and 2nd gear. i also have another question. i had it tuned for 93 octane but i still had a little under half a tank of 87 and then i added some 93 to that and drove it. do yall think the 87 still being in could cause any problems?

[bikeboyben14]

family man... i did the crank relearn and thats fine im having an issue saying my o2 sensors is bad and running extremly rich i get about 130 miles to a full tank of gas