R33 Stuff Ups (moody)

[paulos]

r33 s2, lately the car has being getting a good work out through the hills, and my boost timer allows for this and ups how many minutes it will let the car cool down it got to around 10mins in some cases( it starts on 30secs)

now after driving the car to work being nice with only a few boosted moments the timer starts going up to around 34seconds, as far as im aware of it never used to change unless i was really giving it a hard time, atleast when it goes back down after a while.

does this mean my turbo is on the way out( iv given it a hard life for the short time iv had it)

also when my car is very hot and im doing around 40km and its in second and i floor it to around 80-90 when it hits 5500rpm it seems to make some werid noise from ehuxast stutter for a split sec and then back on track with power does it sound like coilpacks, when its cold or hasent been driven for hours on end its fine.

also for the first 5-10mintues of driving my car its very very powerful but sort of moody( i know you should let it warm up) i think its the vct or boost not sure but around 4500rpm something kicks in like a mofo, yet when the car is warm there is no big kick and the car is less powerful unless its just become smooth i dont know.

also my turbo makes a very very course sound( has since i got it) does that mean anything??

yes i know i dont have punctuation and cant spell.

any info is good thanks

[mad082]

ignore the turbo timer. it can't tell you what condition your turbo is in.

as for feeling different when cold, when the engine is cold the amount of fuel and timing the ecu is running is different to when it's warm. also the turbo and intercooler (and the engine bay in general) are colder so the air is more dense.

the sound the turbo is making, well that is hard to say. really need to hear it to know for sure. could just be normal intake noise.

[paulos]

ignore the turbo timer. it can't tell you what condition your turbo is in.

as for feeling different when cold, when the engine is cold the amount of fuel and timing the ecu is running is different to when it's warm. also the turbo and intercooler (and the engine bay in general) are colder so the air is more dense.

the sound the turbo is making, well that is hard to say. really need to hear it to know for sure. could just be normal intake noise.

cheers

yea just thought because the turbo timer now needs more time to cool down than it used to, how does it know when to increase how long the turbo needs to cool down??

any info about the stuttering at 5500rpm when very very hot

[GTR-N1]

any info about the stuttering at 5500rpm when very very hot

can be coilpacks, looms, plugs, gapping of plugs, afm, fuel.

[mad082]

if it's when hot then it will more than likely be the coils, but it could be any of the things that terry has posted above. start with the spark plugs (as they are the cheapest) and go from there. if the fuel filter hasn't been changed in a while, or is of unknown age, might be worth changing that as well, since they are cheap.