How much difference in power will i feel or notice? I want to be able to feel a difference with my 3" pulley because I want to be able to beat my friends srt-4. The thing is that i just dont want to be dissapointed with the performance. So if anyone has any input, it would be greatly appreciated.
thanks

 

Are you planning on getting it tuned as well?

 

Yes. I will be having Liavy17 do my custom tuning, but for a couple of weeks ill be running it with a maf-t. Will the maf-t make a difference between custom tuning?

 

I would recommend getting it tuned.....seems like it would be necessary

 

You can use the maf t but you need a wideband a/f gauge so you can see what your a/f ratio is. The tune will be better than the maf-t

 

if i were u id get the 60s injectors

my friend is running a 2.8 with 42s and he feels the car boggs at high rpms
someone told him it could be the injectors

 

ill probably get it tuned within a week or two of me getting the parts installed but can i safely run the maf-t with Intense's recommended settings? I already had the maf-t which is why i am using it for now.

 

There are a couple discussion threads in regards to a 2.8" pulley with 42lb injectors.
It seems as though you do need 60lb injectors with a 2.8" pulley and smaller.

 

I think intense also recommened that you have a wideband to check your a/f. Just takes that one time to go lean and your done.

 

Without a doubt!!!

 

i might get it installed and not beat on it and get it tuned within a week or same day if i can do that.

 

This thread was good for a laugh.

why? cause the arguement over 2.8 and GMS2 goes on and on. be honest with people. tell them some say you are safe just bolting it on and others feel you need to do more.

IMO the car is not going to blow up cause it goes lean. have you ever ran a car out of gas? what happened? was it done? know you added gas and went on your way. if it were to be lean then you would just not have as much power as you could have. this aint a two stroke motor or some model airplane. plus it never goes really lean. all evidence I have seen is 13:1. most who have shown real data are like 11:1 which is on the money.

but there are some who find different and feel they need more or worry about the injectors going static (remain wide open) and need bigger injectors.

GM has published that 42lbs injectors are good to 400 HP. I just dont know why people have also not considered the source of their data. I would. I did. I have formed my own opinion. but I am also not afraid to share both sides of the argument.

 

Thank you ssnipes. I always get mixed opinions when I ask about putting certain performance parts on my car. I think as long as i run the maf-t with the suggested settings, i should be fine until a tune.

 

hey guys i run a 2.8 pulley on my ss with stage 2 gmpp tune i run fine my afr is fine acually perfect me and my friend does we have no problems we rund 13.5 13.4 at the track we run great he owns a 2 tone cobalt black and red we are from md but we run fine so i dont see the problem with all the other cobalts saying there stuff runs like crap i get about 17.5lb so iam okay

 

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i run fine with the 2.8 pulley on stage 2 gmpp tune me and my buddy see 17.5lb and run 13.4 13.5 at the track we run great no break ups nothing at all so i dont see the problem with the 42.5injectors and no hp tune when iam running good so yeah

 

ull be fine with the maf tuner. just run intenses settings and youll be okay. there definately will be a world of differance the second u get it tuned.

 

some on in my area got is ss tuned with gm stage 2 and 2.8, are you guys really saying 100% IDC is safe at 6100 rpm??, tehy tuned him to i belive 100% IDC at 6500... thats pushing it..sorry guys.

 

Exactly, the most duty cycle you want to see is 80% otherwise you can go static. Plus 6,100rpm is garbage. That's lower than our stock setting. You guys do what you want but it will takes it's toll after a couple of years. Plus that 400hp rating for the 42lb injectors that came from GM was based on building the internals not small pulleys.

 

Doesn't intense run a 2.8 with 42.5's? I don't see why you all are freaking out, If you don't think it's right, don't do it.

PS: My car runs great! When it was dynoed it was a little rich still. (Mind you, im at altitude)

 

if ur gunna get rid of ur 3" pulley how much for it? and wat company is it zzperforamnce or intense?

 

Its an INTENSE pulley. Let me know if thats the hub you have.

 

hey FI just wanted to let u kno u 2 arent very popular amongst tha vwvortex ppl theres a whol thread but u 2 talkin **** then gettin walked

 

Cobalt Addiction stage 3 comes with a 2.7 and 42lb injectors.
i asked them about this. their response was.
does leave much room for upgrades but you wont encounter any problems with them and their tune. the flattened out the fuel table or something.

check out their site.

 

I thought it was a 2.8 but i you have proven me wrong. It should be fine for a 2.8 and 42's.

 

+1, ive seen that before. the 42lb injectors are damn near worthless LMAO! Im gonna be running them with a 2.85 pulley, but only for a bit. 60lb's are in the near future.