I am trying to determine what I should get next? My choices are as follows:

SNOW PERFORMANCE WATER/METHANOL INJECTION.

HP Tuners.

Header or Downpipe.

Any suggestions? I am not sure what I want to go with yet.

 

I would go with a good header to go with the exhaust. IMO

 

hp tuners cause you can make money off of it

 

You want to get all your mods done before you get it tuned.

 

HPTUNERS!!!!!!!!!!!!!!!!

get that ASAP. U NEED THAT. just to see how bad ur engines running with those mods u got. GM Stage 2 + 2.8 pulley = DEATH.

NO?! ya get the mods one by one decreasing ur engines efficiancy and then when u get ur tuning software find out uve screwed ur engine and try to fix it IF it doesnt blow up before that

 

X2! I make about $500/month off of it. Then again you have a lot to learn about it before you can do that.

 

OOPS! I must have looked over the whole 2.8 with the stage 2. That could be disaster. You better get it tuned asap!!!

 

thank god someone else realizes this on the site.

to the OP you should take off the 2.8 pulley ASAP or get it tuned with HPT ASAP. your hurting ur engines life breaking it down. understand this please dont wanna see a good ss/sc go to waste like that for a dumb mistake or lack of knowledge

 

Def some good advice, but for the 2.8 where is the irrefutable proof that the 2.8 is causing or will cause any damage? But yeah I may just go with HPTuners. Thanks guys.

 

when you run your HP tuners you will see the proof from what i have heard.

 

"get a clue man. I wish I could find the chart that shows 42lb injectors and a 2.8 pulley w/intake put the injectors past static range in 6k. IDK, it was at like 110% IDC after 6k and closer to 120% by 7k.

GM Stage 2 + 2.8 = Slow & Certain Death

Guy on there says his dip stick popped out and oil went everywhere with an engine power reduced on the DIC when he was at the end of 2nd at the track. I wonder why? Roll Eyes

Everyone thinks it's OK to run the injectors static at that high of RPM." ----- sneaky

 

So, a high IDC is certain death? I guess my car is dead already then.

 

thats unfortunate man. u seriously need to either get HPT or ditch the 2.8

 

We should bet on which cylinder is gonna blow first...I put my money on #4

Honestly though, if you search the site you will find tons of threads confirming that 2.8 + GM stage II = death

A buddy of mine on here, cmj917, tried to run the 2.8 with the stage 2 and on the interceptor it maxed out the IDC at 115% and was running 3-4 degrees of knock. We took it off the next day. So not only is it ruining your injectors but you're not getting the power you want since the computer is pulling timing, but it's your car so leave it on if you want to.

 

yes and as stated before the engine just THINKS its doing something good but in reality its makeing it worse

 

i don’t know if i buy this whole hp tuners idc myth.

i have seen post by so many people claiming that they have logged stage 2 with a 2.8 pulley as past the acceptable range of the stage 2 tune.

Also i saw not too long ago that somebody logger a stock SS/SC as running like 130% on the injectors.

if all this was true why don’t we see people all over this site with blown engines with this stage 2 + 2.8 setup?

the only blown engine i have seen are people with below 2.7 inch pulley most of which seem to be running 60 lbers.

remember that super long thread about the #4 piston blowing? SS33 and I are of the opinion that the fuel pump cannot keep up with that much flow demand and as a result starves the number 4.

i run a stage 2 tune with a 2.79 pulley and have been dynoed at every stage along the way.

Last time i had the stage 2 and the 2.79 on and got 247 hp 232 trq and at redline i had a 10.5 A/F ratio.

just about perfect for a forced induction car.

just about perfect for a blown car.

I think that the tables or conversions are off in HP tuners.

Just my 2 cents

Delta 2.2 do you drive a SS/SC?

can you give me few names of people who have had my set up blow an engine?

don’t mean to be an ass but you seem to be acting like this is fact 2.8 = death.

my car is still running strong. I have been running this set up for almost 8 months now.

I took it to the track not too long back ran 5 times and never had any problems.

 

The reason some people are fine with a 2.8 is because you are right on the line of what is too much for the tune and what is not. If you're not having problems, then you are having luck with a couple of the 14,000 variables that go into the explosions in your engine.

But once one of those variables dips down to far, then you are in the danger zone.... I would rather not flirt with that line myself, but if you are able to run it without a hiccup more power to you, theres just too many question marks around it for me.

 

ya its a slow and certain death trap. i mean put it this way, you do what you want. but again u even said urself "Also i saw not too long ago that somebody logger a stock SS/SC as running like 130% on the injectors." ok so u know that the injectors are beyond maxed out.

i want to see proof of this. send link in next post.

those people that say "its ok to run this setup" are not smart at all. they prolly dont have HPT, or just think the smaller the better. whoever started this GM stage 2.8 nonsence isnt wise.

i dont own a ss/sc but i do know LOTS of members who agree with me on this and support it with cold hard facts. if u dont believe me PM some members who arent running this setup.

and if GM stage2.8 is so good then WHY DOESNT GM DO IT????? think about it man the GM stage 3 doesnt even run below a 2.99. and its got a better tune. thats only common sence to see that GM doesnt do it must mean its not good.

if u wanna do this 2.8 setup and have ur engine crap on u later thats fine. its ur car, ur mods, ur money, just not a very wise thing to do in my opinion.

PM the member Sneaky if u dont believe me. i acutally quoted him in the previous post. and he has a SS/SC and HPT

 

what I am saying is that that hpt tuner might be off.

I am saying that I trust a GM engineer before I trust somebody with hpt.

here is the post of a stock ss/sc running 126%


https://www.cobaltss.net/forums/showt...&highlight=idc

Now to that would hint that we should see tons of stock SS/sc blown all over this website.

"GM doesn’t do it must mean its not good." your own quote.

GM is not going to put out a product that cost them millions in warranty work according to your "facts" the stock SS/SC should blow. correct?

what I am saying is what if the tables are off in hpt?

when I saw the people blowing #4 pistons it was with 60's. unless I missed something.

tell me the names of people who HAVE blown their engine with this setup.

 

My engine blew today. . I took my Stage II Cobalt SS/SC with 10,000 miles on it into 2 seperate dealerships and informed them that the oil had gas in it, having a very strong fuel smell. Also, the oil level rose above the max fill line slightly because of the fuel.

So at both dealerships the techs said they "Couldn't reproduce customer concern, everything is fine." I asked both service managers and they said "Sorry, just drive it like normal and if it breaks we will fix it." Well today I was accelerating on the highway and all of the sudden the engine started bucking and the check engine light was flashing. Needless to say my car is now at the dealership and I am awaiting a call to see what will be done.

Just for the record; I am a technician at Mercedes and knew that the car wasn't in good shape to drive but it's so new and I never drove it too hard so I knew this failure would happen eventually. So I have receipts which say I took it in for the problem and signed receipts saying that I was advised to continue driving as normal. This is BS and I've never seen a car break down which was so new.

Edit: There are NO aftermarket parts on the car. My stock tires still have near stock tread depth. In a period of 5,000 miles I have changed the Mobil 1 twice.

 

to me the above post sounds like he had more problems than Stage 2 and a 2.8

gas in the oil?

If your car is just straight messed up then i dont think that that was realted to the idc of the injectors....if i am worng please tell me.


hope this doesnt turn you off american cars.

i worked at a VW bmw mercedes audi dealership back in the day and i loved it.

best job i ever had. well favorite any way.

 

I agree with SSpartan.

It's as simple as this. Looking at IDC alone is totally meaningless. The stock ECU is tuned to deliver fuel so that it maintains rediculously rich air/fuel ratios (<10:1). Just because you're showing 110% IDC doesn't mean you're running lean, you're just running leaner than the 9.5:1 that you would be normally be running (wideband confirmed on my friend's RL).... and there's nothing wrong with that. You need to remember that you're leaning out FROM STOCK AFR'S, which are stupid rich anyway. So who cares if you're hitting 500% IDC as long as your air/fuel is in a safe range. IDC doesn't kill the motor, detonation does.

 

1st - link doesnt work fix
2nd - HPT isnt incorrect. its the best tuning software for our cars. everyone uses them and recomends them.
3rd - according to those facts even if u wanna pitch the idea that HPT is wrong, the Stage 2 comes with a smaller pulley, injectors, and a new tune....so those numbers are all changed and new limitations are set.
4th - people who have blown there engine, none off the top of my head but im sure there are people on this website that have.

 

2.8 pully with stage 2 is kinda risky
but it depends on a few things.
temp and altitude make a big difference.

theres alot of chicken little going on in this thread.

Do you have any idea how long the PB 2.8 pully mod was the best thing since sliced bread?
for MANY months there were TONS of people running it. there are STILL tons of people running it.

its on the limit....and if your at sealevel, your risking it.
but its not "instant death"

As far as im concerned. i would run a 2.8 with stage 2 LONG before id run a 2.5 on 60lbers.

 

lol well no kiddin.

but ya i forgot altitude in which u are located is a big factor in this. depending on where u are it can vary.

i never said instant death. actually the opposite.

but its still bad to run on ur car plain and simple. those engines are on the limit and i gotta say that anyone whos tuned a car efficiently will agree with me