blow off valve

[pwpanas]

Originally Posted by Dom

still have stock turbos,all i have in car is a blitz dual turbo timer according to that my peak boost is 1.00 hkpa? i always have traction on as its always raining in ireland i only ever let it out in the dry on motorway and i gave it to a 2004 m3 not to long ago so i was happy with that

its just when somebody says something like that to me i start thinking to much
maybe i should'nt listen to these guys so much
just said i'd ask you as i want to keep this car 100%, its the business
im not all that mechanicaly minded so i said i'd ask a pro

It's possible your friend doesn't understand the way the oem twins work in sequential mode in the 2jz-gte/jza80. Although it may seem that boost doesn't hit that hard between 2500rpms and 3500rpms, the #1 turbo is actually producing a smooth horsepower increase (beyond n/a)...so when #2 starts boosting at about 3500 rpms, there is no hard horsepower 'hit' as you feel in many other turbo cars. This may make it seem to someone not experienced with the mkiv that the turbo is lagging.

On the other hand, please contrast this to many mkiv owners that have tried their supras in 'ttc' mode. You do feel the two turbos 'hit' when they come on in this mode, but you'll also find it's actually slower in the 1/4 mile...