R33 Gtr Needs Help!

[BRNGIT]

Hi Everyone,

Just wanted to see if anyone could help with an issue im having. Not sure if its called compression surge or reversion or if they are the same thing! Cruising at around 3000rpm, im getting a funny noise like.... i have no idea how to write what the noise soundsd like! Its obviously air "surging" if that makes any sense. If i give the car throttle, it goes away at aroun 3500rpm. Was told it was my BOV so i fitted a new Greddy Type R. Didnt help. Was told it was the lack of standard plumback form BOV. Was told it was that AND the lack of balance pipe on the intake side. Have also been told its the turbo choice. (GarrettT28RS60's) Have been told its the bane of the RB's. Can be tuned around but not fixed. Any ideas? Any fixes? Its bloody annoying! Thanks for your help.

[700HP-GTR33]

What filter are you running....it is an air intake noise..is that correct?

Are the turbo's new?

Do you run a boost controller?

Are both turbo's set at the same boost at the actuator?

Is it a flutter type of noise ?

Have you ever cleaned your intercooler?

Lots of questions, but unless I hear the noise and experience the ride at 3000Rpm I am unable to

attempt to answer your problem.

[BRNGIT]

What filter are you running....it is an air intake noise..is that correct?

Im Running HKS pod filters x2

Are the turbo's new?

Just run them in

Do you run a boost controller?

Yes. Brofec B spec 2

Are both turbo's set at the same boost at the actuator?

Dont know

Is it a flutter type of noise ?

Dont know how to explain it

Have you ever cleaned your intercooler?

No. Its new.

Lots of questions, but unless I hear the noise and experience the ride at 3000Rpm I am unable to

attempt to answer your problem.

The ride is fine. It was terrible when i ran AFMs because they read twice i was told. Air going in then goining out again.

Was told that adjusting the Cams (HKS 272) would help....

[paulr33]

this has been covered in the past

search on

compressor surge

compressor shuffle

compressor chuffing

all the answers you see are in those threads