Hesitation/missfire At Wot Between Gears

[RamR33]

Hi guys,

I have a R33 rb25det series 1

Car is making close to 300rwk pump 98

Mods are,powerfc,850cc injectors, upgraded fuel pump, hypergear turbo ect..

Car is on 19 psi boost level and tuned at status

I have a bad hesitation and misfire at wot.

ill do my best to describe the problem.

As soon as I accelerate to full throttle and gear change/putting gears together from 1st to 2nd or even between shifting 2nd to 3rd it will hesitate and miss fire between 5000/6000 pull u foward and then clear up away it goes all the way to redline

When I just go full throttle in the one gear either 1st ,2nd or 3rd gear without putting gears together theres no problem, just clean smooth all the ways through to redline.

If the car gets wheel spin while shifting hard between 1st to 2nd gear it will do it slighty but when it doesn't get wheel spin it just pulls you forward/hesitates and misfires and just clears up after 6000rpm all the way to redline.

Spark plugs are bcpr7es pre gapped .8

Yj coil packs but picked them up second hand and 2 serial numbers on the coil packs are the same and the other 4 serial numbers are all the same so makes me think they have been changed and they should be all the same serial numbers so could be dodgy coil packs sold to me as Ive had them for 18 month now.

It has been doing it to me from a lot of turbos/set ups ive had on the car but I have noticed even when I had a old ebay turbo on as well 6month ago or so it would do it at high boost but as soon as i went to around 12/13 psi perfect can shift hard between gear and perfect no hesitation or misfire so not sure if its my coilpacks or plugs maybe to cold or gapping to .65/.7mm will help and maybe blowing out the spark between gear shifting at wot.

Will be getting brand new splitfires in the next few weeks but just wanted to ask and see if anyone has seen/heard of a similar thing with there rb25det.

Any help would be great.

Edited October 17, 2013 by RamR33