cpraider12

man ive been running my 2.8 wit stg2 tune and 42s for a long time now and havent had ne problems
and i dont know nething bout tuning and id like to ask wut idcs are and pw....i know i could use the search but im lazy haha thanks guys

il take ne advice u wanna give me and ill put it into consideration

car_guy_09

idc is injector duty cycle, You dont want it over about 90%, meaning 90% of its capability. With 42s on a 2.8 people have seen crazy idc of over 130%. Honestly im not sure what pw is.

My advice to you would be get 60's

lsjwannabe

iTrader: (1)

injector pulse width

car_guy_09

Ahhh makes sense

ShortStack

I dont care if you call BS. You havent seen my tune, nor my logs, so you actually have NO idea what is going on with my car.

Why would i just make that up?

BoostedYards86

haha honestly we don't need to see your log or your tune. Its about airflow and fueling. To use a 2.8 pulley the 42# can't keep up. It will be a matter or time. The only way your tuner could have kept your car safe is by changing your rev range, aka lowering your redline to say 6k. Taking a guess on that one. But if your taking it up to 7k or higher then your in need of larger injectors or a larger pulley.

ShortStack

Nope. 7k red line.

I know what its about. And i dont beat on my car, last time ive hit the redline was probly november. And that was just once, in second.

I dont need anything like that right now. Ill be fine with what i have.

recklessactn

iTrader: (1)

ok lets see some logs bc i'm runnin 2.9 and 42's and matt at TTP showed me the math on the idc's and i wasnt maxing out the injectors

my boost is limited in first
my afr at wot is 11.0 constant throughout the whole rpm range to 7k, 3rd gear pull

ShortStack

Wish i had em.

My tuner (who is banned from here) did all the work early fall last year.

I asked him about that, specifically, and he showed me that everything was in line.
Not getting too hot, and not over doing itself.

Also look through hptuners..

There is a min PW option, and a PW adder... Im guessing this is not to over run the injectors?

BoostedYards86

being naive is bliss. I was running a 11.6 afr with a 2.9" pulley and on 42#'s was hitting 101idc by redline. so there are only two options. run super lean, run meth, or your overworking ur injectors. you car will be ok...for a while. How long that while is its hard to say. All we can tell you is that its not "recommended" and that most with HPT on this forum will not tune a car with said mods.

ecotecon18s

I've scanned 3 different Balts with smaller pulleys on GM stage tunes...injector duties NEVER got under 100%...2 were 07's with 2.8's and 42's, and the IDC's were well into the 120's, even saw 130's at redline in 3rd gear on one. The other was an 06 with 42's and 2.9 and his were in the 118% with a safe, but lean AFR when at redline in 3rd.

There would def. have to be some serious tweaking to get the IDC's that low with that setup, and a definate loss in power. I have 60's and a 2.7, and tune another guy with 2.8 and 60's, and our IDC's are still in the 80-90 range at redline in 3rd/4th gear. And that's being leaned out to mid 11's.

flash13brandon

Who tuned you short stack? James(Werewolfss)

ShortStack

^^ BTW i got a cd key..

yes flash.

Look, you guys are asking me way to much **** that i cant explain.

I saw the IDCS, they were not over 100. What was the PW? I have no idea, nor do i have any idea how he could show me less than 100 IDCS. i dont know i dont know i dont know.

All i know is that is what i saw.

ecotecon18s

I've tuned them...but like you said...i don't recommend it.

Hell I ran a 2.7 with meth and 42's for a while, before I got my 60's in...but I had it tuned accordingly.

flash13brandon

Thats good bro. now you can look at it!...James tuned Ecotecon18s and I believe that his IDCs were over 100 and he was on the 2.9...correct me if I'm wrong Ecotecon18s sir

ShortStack

Ok so you can tune your 2.7 accordingly with 42s?... but my car cant?

Doesnt make sense.

Never said it was the best thing to do.. Obviously not.

Can you do it if you have no other choice? Sure.

ecotecon18s

i dont recall the idc...he said it was at 100%, but I never saw that myself. and yes...2.9 and 42s

lsjwannabe

iTrader: (1)

Just thought i would throw this out there, anything after 80% and your injectors are along for the ride and you don't really have any control anymore.

flash13brandon

Accordingly does not mean his IDCs were low. Over half the forum is prolly running 110+ IDCs so if you wanna join that crowd. Good luck.

ecotecon18s

you must have missed the part about the meth, and my rev limiter was at 5500.

Thank you...I was waiting for someone to chime in with that...

ShortStack

LSJwannabe, yea, ive heard that... Im not really worried about it right now though..

Ill be getting 60s and all that jazz in about a month.

Yea they probly are, i like to conform .. jk... but honestly, i dont drive hard or anything, so im not really worried about it right now...

Plus with what i have goin on in about a month or two im gonna NEED 60s... Just dont wanna spend the money twice.

Yea i completley missed that part about meth, lol.

lsjwannabe

iTrader: (1)

As long as you don't beat on the car which it sounds like you don't your fine were you are for sure.

ecotecon18s

x2.

ShortStack

Yea, ive heard wayyy too many horror stories, and i guess i was misinformed when i got the setup that it would be able to be ran.

I shift at about 5k either way. I dont even hit redline if im "passing" someone... i go to the almost top of second and back off.

EXsoccer1921

iTrader: (14)

don't you love it when people call bs on something there weren't there for