Bnr k04-gt28
Thread Starter
Senior Member
Joined: 02-09-09
Posts: 4,374
Likes: 5
From: Tejas
LOL... poor Cuban... conflicting messages.Hey man, whatever route you decide on going, I can help you make it happen and get it hooked up right.
Last edited by Stamina; Apr 20, 2011 at 04:02 PM.
Senior Member
Joined: 09-04-09
Posts: 2,218
Likes: 0
From: Alabama
Well if BYT can't tune with the BOV hooked up to the solenoid, then you probably need to hook it up to direct vacuum.
Since BYT is your tuner.
But if you ever get sick of the turkey call (flutter/surge) and slow reaction time, give the solenoid/BPV method with 6 or 8psi spring a try.
I think you will be pleasntly surprised.
Since BYT is your tuner.
But if you ever get sick of the turkey call (flutter/surge) and slow reaction time, give the solenoid/BPV method with 6 or 8psi spring a try.
I think you will be pleasntly surprised.
Last edited by HHRSSouth; Apr 20, 2011 at 04:56 PM.
Well if BYT can't tune with the BOV hooked up to the solenoid, then you probably need to hook it up to direct vacuum.
Since BYT is your tuner.
But if you ever get sick of the turkey call (flutter/surge) and slow reaction time, give the solenoid/BPV method with 6 or 8psi spring a try.
I think you will be pleasntly surprised.
Since BYT is your tuner.
But if you ever get sick of the turkey call (flutter/surge) and slow reaction time, give the solenoid/BPV method with 6 or 8psi spring a try.
I think you will be pleasntly surprised.
Senior Member
Joined: 09-04-09
Posts: 2,218
Likes: 0
From: Alabama
From what I read on the world wide web, partial boost flutter is not detremental to turbo failure, partial boost flutter is normal from what I've seen posted.
Flutter at WOT or any kind of turbo surge is bad ju ju.
Why can't I tune it with it hooked up to the solenoid? lol.. That has nothing to do with anything..
I prefer on the bigger turbo cars that it works mechanical, IMO, it works better that way. If you like yours on the solenoid, then leave it. Mike can make his own choice on what he likes also. Doesn't really matter in the end, it's a non issue.
I prefer on the bigger turbo cars that it works mechanical, IMO, it works better that way. If you like yours on the solenoid, then leave it. Mike can make his own choice on what he likes also. Doesn't really matter in the end, it's a non issue.
yeah the flutter isnt surge, surge is a bad thing.
Flutter =/= Surge
Surge is bad. Flutter, not so much.
This is Surge:
YouTube - True Compressor Surge
If you are not experiencing that, you're fine.
Surge is bad. Flutter, not so much.
This is Surge:
YouTube - True Compressor Surge
If you are not experiencing that, you're fine.
PBass is also exchanging his 2860 for a 2871 now. Bryan didn't seem too happy that Mike's success was getting around to other people. Eventho he admitted finally that its a fail on this car. 
Senior Member
iTrader: (7)
Joined: 04-06-10
Posts: 3,702
Likes: 0
From: 6000ft on a Mountain in Colorado!
Senior Member
iTrader: (7)
Joined: 04-06-10
Posts: 3,702
Likes: 0
From: 6000ft on a Mountain in Colorado!
So it'll be more like this then?
So surge is during spool up, not release of pressure. The wowowow during release is just blow off flutter?
If this is true, then Dejon was right about their spring not creating surge, it creates flutter. Man was I wrong then.
YouTube - Compressor Surge - Grand National
So surge is during spool up, not release of pressure. The wowowow during release is just blow off flutter?
If this is true, then Dejon was right about their spring not creating surge, it creates flutter. Man was I wrong then.
YouTube - Compressor Surge - Grand National
Former Vendor
Joined: 06-03-08
Posts: 4,169
Likes: 8
From: Grand Rapids, MI
They are both surge. Surge happens any time there is not enough energy driving the exhaust wheel to overcome the back-pressure against the compressor wheel. This means it can happen when the turbo is too big for the motor making the boost pressure very high because the motor just does not flow well enough. It can happen when the exhaust wheel is too small in relation to the compressor wheel. It can also happen when the charge tubes and intercooler are already pressurized and you let off the throttle. Exhaust pressure drops suddenly and the pressure in the charge tubes/turbo stops the compressor wheel or slows it down very quickly. Bypass valves and blow-off valves are utilized to eliminate this type of surge.
They are both surge. Surge happens any time there is not enough energy driving the exhaust wheel to overcome the back-pressure against the compressor wheel. This means it can happen when the turbo is too big for the motor making the boost pressure very high because the motor just does not flow well enough. It can happen when the exhaust wheel is too small in relation to the compressor wheel. It can also happen when the charge tubes and intercooler are already pressurized and you let off the throttle. Exhaust pressure drops suddenly and the pressure in the charge tubes/turbo stops the compressor wheel or slows it down very quickly. Bypass valves and blow-off valves are utilized to eliminate this type of surge.
i had the issue on my car when procharged .. when the BOV wasn't adjusted correctly as well when i was turboed and not correctly adjusted so thats what i was going off
Senior Member
Joined: 03-03-10
Posts: 1,213
Likes: 0
From: West Allis, WI
Yeah, that was bracket racing and I was racing a Z4. I don't know what he was dialed in at, but he definitely had the start before me. But yeah, I won and moved on to the next round. I was happy with the 12.9, but if I had slick I'd be low 12's, maybe even flirting with 11's...