compressor surge/ turbo stall

[2footpegs]

hi i had my car remapped a few weeks ago and at the same time a changed my forge splitter DV to fully recirc, it seems to chatter alot iv tried it on soft settings and hard settings but no really difference in the chattering. im concerned it mite be the turbo stalling or could it just be the recirced air echoing in the airbox (i have a K&N panel). thank you

its a 225 LCR an runs perfect apart from the chatter

 

[2footpegs]

anyone?

 

[Hilla LCR]

Have you bypassed the N249? Mine chatters loads with the bypass.

 

[2footpegs]

yh i have done a n249 but ive put the OE DV on and thers hardly any chatter, also i jus removed the forge splitter and did the leak test on it and the piston just drops could this cause the chatter?

 

[Lodgey180]

is it chattering a bit or is it full chatter.. have you checked your pipe from the inlet manifold
i had a big problem with mine not so long back and found one of my "T" peices had a reducer in it