I know this thread is for Sc owners my question is does hp have any benifits for the 2.4? thanks

 

Tuning will gain benefits on any car any model. Not just little pipes make a big difference but a spec of dust can too, also the slightest number change can make big differences haha. Also I was before seeing only 80% injector duty cycle at 7125 rpms at WOT now I'm seeing 130% duty cycle, so I'm wondering if this is a sign of fuel pump or pressure loss. I'll find out soon I guess haha.

 

i think for a 2.7 60 pounders are needed man.

 

okay guys, here the thing after a WOT run the car starts to hesitate and doesnt run as good. I havent touched my desired MAP. do you guys think this could be the problem. For the car to run back to normal I have to turn it off and back on. How do I fix this.

 

thats what ive been tryin to figure out....
after a few wot runs, it seems like the car sputters and the exhaust is farting, then after you let it chill its better, what i wanan know is how do you deal with this issue with hpt, ljavy17, i notice you have an intake aswell..... thats probably the reason, why does te intake cause this, i dunno, thats y im here lol
ps, ive got gm stage 2 tune witha 2.85.

 

we have the same problem!!!!!!!!!!!!! I love you, Im gona try to change a couple of thigns and ill let u know, When im don ill send you the HPT file.

 

sick, thanks!

 

Boost control

 

Then what is Torque management on a NA engine?

 

No it's not boost control. TQ management is only used in abuse mode, and then it calculates load which is used to determine % of load, then it reduces power depending on those factors. I actually haven't found where the boost control is, I've changed it all, the only thought now is it's based on the MAF sensor and the Airflow table. Once I hit 18psi of boost out the exhaust it goes, unless I plug the tube and then I can hit anywhere between 20 and 22 lbs depending on gear.

 

lol, you are right on the money on that one julex......

I am very positive that boost control is under Torque management->supercharger-> Max boost 1st gear or max boost in 2nd gear. This way you can choose how much you boost in each gear, preferably changing 1st gear to avoid the spin, this is controlled thro the Buttlerfly (Selenoid).

 

Unfortunetly those tables are set at 100% (also 200% but that's the same as 100%) and I still hit boost control, which is why it's got to be a the airflow chart, unless you can't set the pcm to allow more then 18 lbs.... without doing the bypass mod. And yea I want to play with 1st gear max boost to maybe get a bit more traction at track . Good luck

 

its crazy cuz it ran fine till we changed your belt, i guess your boosting more even during a regular drive cuz ure old belt slipped all the time.

 

I have my boost set at 100% in all gears, I hit just about 13 psi with the stock pulley, even in first gear.

 

see i got HPtuners software but i went with a Binary File from Intense due to no knowledge. How much HP do u think im missing out on?

 

Not much, I have a slightly altered intense stage 4 tune, its a pretty good tune to start with.

 

No offense but I found that intenses tune, could have used a little more. the 60lbers they have set as 52lbers (the tables on these pcms only go up to 60 so to tune to 60lbers you need to set one of the table up so it adds more air so in essences tricking the pcm into fueling with the 60lbs) SO you could be missing out on some good power, but their tune is still alot better then stock! Also Intenses tune is a very good base on a new tuner (like I am, but I'm learning as I tune).

Sheek, my belt slips like a mother know that it's getting colder out, 2.7 with stock belt was fine but now I need a smaller belt cause it's just not hot enough to make the belt stick.

Blown, I'm hitting 18psi in all gears with the 2.7. With the boost bypass polugged I've seen up to 22psi!!

 

22 psi with a 2.7!!! sounds like a clogged cat to me.

 

I did have a clogged cat, but this was after my cat internals were blown out. I still need to take the cat out and finish the job, stock exhaust pops like crazy and is louder then my buddies gmpp exhaust and it's not the injectors sticking :P

 

i'm pretty sure popping exhaust is an indication of running lean. I used to pop like crazy, but now since I put my injectors in and run rich as hell i don't hardly pop at all.

 

actually popping is caused by unburned fuel in the exhaust. which is burning off in the exhaust pipe. Atleast that's what it is in mine and older cars, I could be wrong though, not saying you are or that I am . I have all my LTFT at -1 to -5 and I'm pretty sure I'm not getting into lean at all.

 

I would not take your street gas tune past 11's...11.5-11.7 is what you should be going for, from there add timing, don't drop any more fuel. Any higher than that you will be knocking as the weather changes.

 

? 12.5 is definately safe man. And Ljavy is still richer than 12.5. The crazy thing is Ljavy's tune was fine when he had belt slip! He has the 2.8 with no tensioner... We installed the stage 2 belt <Ljavy I had to wash my clothes twice man!> and there was no slip and then this problem arose.

 

I have my power enrich mode set to 2750, and when I let off the gas I have no pop what so ever until I drop below 2750.

 

JCwoosher. I would say about 5 to 10 since You can stil work on your AF ratio and make it perfect. im sure you can smoothen it out a little bit.