WOT Judder on a T5 with a 304 Rica‏

[craigoodwood]

Agreed. I went NGK Iridiums after and it's started missing again now after 3 month's!

edd zachary the same here too

[WillT5]

Can anyone tell me. My turbo sometimes boosts to 15 psi and sometimes to 10psi, I would have thought that the Rica would always boost to 15psi. Could this be part of the same problem, or another one to add onto the list?

Thanks,

Will,

[partsforvolvos.com]

not sure, it depends on the map parameters. max boost will be foot flat to the floor in 3rd upwards.
generally you wont see full boost in 1st or second.
perhaps somebody with this map can let us know what they are getting?