vf34 owners, please help me out...
#1
Scooby Regular
Thread Starter
Join Date: Mar 2003
Location: Land without a governement...LOL
Posts: 609
Likes: 0
Received 0 Likes
on
0 Posts
vf34 owners, please help me out...
I got this strange thing going on for 5 months now...
Installed an STI engine into my Classic, complete with VF34 turbo.
After running in, the turbo developed a strange whistling sound, only when cruising off boost. It's like a muted jet engine, goes up and down with the revs.
As soon as I make boost, the turbo works 100 %, no excessive sounds or strange boost behaviour.
It's just that whistling sound under 3k revs and below 40 mph, with no boost.
I was told that VF series roller/ball bearing turbo's will do that, but I know from other STI owners, that they don't have that noise...
???
Installed an STI engine into my Classic, complete with VF34 turbo.
After running in, the turbo developed a strange whistling sound, only when cruising off boost. It's like a muted jet engine, goes up and down with the revs.
As soon as I make boost, the turbo works 100 %, no excessive sounds or strange boost behaviour.
It's just that whistling sound under 3k revs and below 40 mph, with no boost.
I was told that VF series roller/ball bearing turbo's will do that, but I know from other STI owners, that they don't have that noise...
???
Last edited by Creepy; 16 January 2008 at 05:38 PM.
#3
Scooby Regular
Thread Starter
Join Date: Mar 2003
Location: Land without a governement...LOL
Posts: 609
Likes: 0
Received 0 Likes
on
0 Posts
Turbo was brand new, as was the complete engine (without manifold/exhaust)
Strange thing is that I drive the car so for almost 5 months, so if it was really a problem with bearings/shaft or similar, it defenitely must have blown.
(Already went 3 times to the 'Ring, together almost 20 laps, and 2 weeks ago drove 500 km's trough Europe, mostly flatout...)
Strange thing is that I drive the car so for almost 5 months, so if it was really a problem with bearings/shaft or similar, it defenitely must have blown.
(Already went 3 times to the 'Ring, together almost 20 laps, and 2 weeks ago drove 500 km's trough Europe, mostly flatout...)
#5
Scooby Regular
Thread Starter
Join Date: Mar 2003
Location: Land without a governement...LOL
Posts: 609
Likes: 0
Received 0 Likes
on
0 Posts
First I tought that the "whistling" I'm talking about was an interference in my radio... It sound exactly the same, a very slight sound...
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
Brzoza
Engine Management and ECU Remapping
1
02 October 2015 05:26 PM