Bottom End Blubber

[Njones125]

After putting on my new intercooler (Old one Cracked last year) i got my 09 nytro with powderlites stage 2 turbo on out tuning today. After getting my boost dialed in the sled is running great other than on bottom end. If you get on the throttle rapidly it bobbles for just a sec and then kicks in. It actually feels alot like turbo lag but it was much more responsive and did not do that last year. Does anyone have any suggestions as to what may have started this. All i did to it was remove intercooler and put it right back together. It did have some of last years fuel in it so i siphoned out as much as i could and added new fuel plus two gallons of 110. Any help would be appreciated

 

[Njones125]

One other thing that seems a little odd to me is a dont remember exactly what it was last year but does running between -8 and -10 psi at idle seem to be a little too low?

 

[08nytromtxa]

wastegate

maybe check your wastegate to see if it needs to be tightened up. mine was half a hole to pull on and i just moved it up to a full hole and seemed to help.

 

[nytrocharged]

whats your A/F reading where did u tie in your fuel pressure reg ur fuel pressure off will make it burp