Compressor Surge

[H@ME]

Paul i have # 1 type of compressor surge..now my questions till remains...how bad is this for your turbo set-up?

[Bumblebee]

my gtr did it, my 180sx did it for 2 years, the 180 im drivin now has massive "dose", my rx7 that i had also sounded like a vl turbo tututututututu...

never had a problem.. but i assume that while it may cause damage to the turbo, its probably minimal.. unless ur running high boost.. might snap the wheel off the shaft lol

ive heard of that happening b4

[H@ME]

yeah i had that happen to an rb25det turbo running too much boost, but i am now running a kkr480..just wanted some imputs on it. should i install a b.o.v system to it or is it not worth it?

[W0rp3D]

A mate had an r31 skyline that had dose, in the two years he had it he had to rebuild the turbo once because the thrust bearing wore out (in and out shaft play) was on its way out when he got rid of it as well.

[daxter]

wortho32 - Try reinstalling the stock bov (if its not already on) and leave the bleed hole on the bov open (dont block it off), this should help to relieve enough pressure to stop the turbo from surging on boost. Also if you can, try to re-plumb the bov back in so its circulating the air, this will help keep things smooth and turbo spooling.

This should work fine till you can get a better turbo then you can slap and aftermarket bov back on.

[wortho32]

How can it be airflow meter... when there isnt one on the youtube vid?

Was it off the same motor? (same spec etc) ?

(hay guys havent had acess to computer 4 a while)

all the specs are the same i pritty much unbolted his parts and bolted them straight on only differnce is who tuned it thats all.

could this be due to tune if cam gears are advanced to far?

[r33cruiser]

wortho32 - Try reinstalling the stock bov (if its not already on) and leave the bleed hole on the bov open (dont block it off), this should help to relieve enough pressure to stop the turbo from surging on boost. Also if you can, try to re-plumb the bov back in so its circulating the air, this will help keep things smooth and turbo spooling.

This should work fine till you can get a better turbo then you can slap and aftermarket bov back on.

WUT .....so a bov will change a turbo's flow characteristics and efficiency maps

i believe u are confusing a fully hectic flutter with compressor surge- DUN DUN DUNNNNNNNNNNNNNNN

[blaikier33]

ive got bad surge at low speeds in 4th and 5th gear, when is rely loaded up. and ive got plumb back bov, nistune, highflow turbo. i dont belive bov will make a diff

[R31Nismoid]

That will be turbo related @ low RPM (as long as the BOV setup is in working order)

[blaikier33]

gotta watch some highflows, as has been stated they put a t04b wheel in mine thats why i get comp surge at low rpm. fix- smaller wheel , or bigger housing. or cams etc etc.