mazda/feed

i currently have apexi gt cb, hks dp, stock cat and my apexi RMS said that i was pulling 286 hp at6 500 rpm,
when i shift from 1st ro 2nd at 500o rpm's i get this loud WHHEEEERRRMMMMM SOUND and its not my bov. i only get it when i try to shift fast in that high rpm.maybe im shifting out of the real i dont know thats were you guys come in please help me thanks. by the way i think that my stock wastegate may be making that sound. so who ever had this problem please help.

mazda/feed

soory guys thats was 5000 rpms

zooq

do you feel a power loss? when you hear that sound.

twstd rx

Let me guess,

After the gear change you don't have boost, right? You only get the sound after you let off the gas and the bov does not vent cause you are not making boost.

It's the TCA. I had the same problem and eventually went non seq because of it.

Shift slow at lower rpm and everthing is fine. It drove me up the damn wall. I hate having power I can't use.

Andrew

mazda/feed

yea there is major power lost when this happens. TCA what is that i keep hearing about it, i dont see it in the shop manual, man it does drive you up the wall, my brother has an AT fd and he got me off the line not once but 3 times and it never happend before i would normally kill him