Mazdaspeed 6 Stutter

[leka]

Hi!

I live in sweden, the Temps here are low, about 10 C.
Today I was at the movies, on the way there i pulled hard on the throttle, 3-6 gear
After the 6 gear, i was at 200 km/h, i felt the car stuttering, like some kind if cut (only when i push the throttle down to the floor, otherwise if I smoothly push down the throttle it accelerate smoothly,
The problem appers only once i push it down to the floor, It happens sometimes at the 5 gear.
It feels like that I push the clutch very fast then release it, it happens 3-4 times if I still push the pedal down

My mods are: CP-E downpipe, TIP and SRI (SURE), Corksport FMIC, ITV22 (original gapped) SQVV BOV, AUTOTECH HPFP
Tuned my Alex Stratified.

Any Ideas?

[Steve @ VersaTune]

It sounds like you may be hitting fuel cut from exceeding your boost or load limits. The turbo will flow more in cold weather and can exceed limits that it doesn't in warm weather. Please post a log that captures the event in question as well as the current tune you are running.