ok i have a ss/sc with a intake and a 310 pully i was having a lag problem like the car didnt want to go anywhere. but yesterday i did a burn out and the car like dog and backfired and the boost gague read 10 psi but i was not going anywhere so i back off thinking i broke something lol but i didnt and the car like pulls really hard now and it seem like it just want to go now there no lag or anything anymore run real smooth now i have no idea what happend but im thinking maybe one of my injector was drit but i dont know has anyone else had this happen but the car runs great now lol

 

damn dude, punctuation makes a ton of difference when trying to read. but no, i havnt heard of anyone having this problem.

 

yeah sorry. anyway yeah its really wierd.

 

Easton huh? I'm from hellertown. Anyway, do you have access to a scan tool? See if you have any DTC's stored that didn't set a CEL.

 

no i dont. you guys dont think the cat was jammed and i blow it out of the muffler well a part of it. but i would have a cel than.

 

hey, your sig is to small motherfocker..

 

^^

Well the lag problem is bc you havent not been tuned with big injectors and you probably have a clogged cat from your other thread you made.

 

Check your MAF for fluids too!

 

Bigger injectors and no tune? That'll explain the backfire

 

^^^
Missed that part, that would throw a curve to the stock pcm.

 

im running stock injectors

 

you should probably get tuned with 42lb injectors with that pulley

 

It wasn't in the post, I was just going by what someone posted.

 

INTENSE
IMPORTANT NOTES:

- Stock pulley size for the M62 on the Ecotec LSJ 2.0L is 85mm (~3.346")

* no modifications are necessary for the 3.30" supercharger pulley size

** we recommend colder spark plugs be used in conjunction with the 3.20" and 3.10" supercharger pulley sizes

*** we recommend colder spark plugs and 42.5 lbs/hr fuel injectors be used with the 3.00", 2.90" and 2.80" supercharger pulley sizes and stock 6500 rpm limiters.

**** we recommend colder spark plugs, 60 lbs/hr fuel injectors and custom supercharger snout machining with the 2.80", 2.70", 2.60" and 2.50" supercharger pulley sizes and 7000 rpm limiters.

 

It's just safer.