Flat spot after 2g(revs)

[VTmadS1]

I recently installed a bored out throttlebody in my series 1 executive (v6 ecotec) and although response and overall power is better i have noticed a flat spot just after the 2g mark as the car is reving.

any ideas on how to fix this?

[black as]

Did you replace it yourself, if so is all your hoses nice and tight and that you have checked that nothings loose. Also is the throttle body brand new or an old one bored out.

[mking]

pretty sure i read something awhile back on this and it said once you get upto 2000 revs you have enough air in you plenum or something until you boot it, i have also got a 69mm tb and i reckon it is a shit mod without atune, recked all my shift points makes my car idle weird and jjust makes my car act weird in general, will be changing back asap.

[VTmadS1]

Did you replace it yourself, if so is all your hoses nice and tight and that you have checked that nothings loose. Also is the throttle body brand new or an old one bored out.

the hoses are on nice and tight, however it came with instructions to put in an enclosed restricter in the vaccum dump hose.

it is an ond bored out body