Holy Compressor Surge Batman!

Reply Subscribe

Thread Tools

Search this Thread

05-28-2009, 09:14 PM

#21

1990miata1.6

I'm Miserable!

iTrader: (2)

Join Date: Apr 2008

Location: monroe CT

Posts: 463

Total Cats: 0

Quote:

Originally Posted by fluke

You up the boost, you up the flow-rate and inertia of the turbo. On the downshift you have to vent more air, if the BOV doesn't flow enough you surge.

he has the rfl it will flow it the setting or spring he has in it just sucks for how much psi he is running

05-29-2009, 12:34 AM

#22

miatamania

Elite Member

Thread Starter

iTrader: (9)

Join Date: Aug 2006

Location: Concord, North Carolina

Posts: 4,160

Total Cats: 6

Quote:

Originally Posted by fluke

You up the boost, you up the flow-rate and inertia of the turbo. On the downshift you have to vent more air, if the BOV doesn't flow enough you surge.

This is on normal upshifts, partial throttle lifts, etc. Part throttle is bad surging but sometimes it vents. 12+ is a high pitched whoosh from the filter, which I'm assuming is also surge, but it is not the turkey call flutter I've heard before.

I just recently started, I need to get a video.

Last edited by miatamania; 05-29-2009 at 12:47 AM.

05-29-2009, 08:12 AM

#23

fluke

Junior Member

Join Date: Jan 2006

Location: Toronto

Posts: 181

Total Cats: 0

Quote:

Originally Posted by miatamania

My mistake, I thought upshift and wrote downshift (where you're typically making no boost), shouldn't surge there.

On the upshift you can be at full boost when you lift off the throttle and abruptly stop airflow, which surges if not vented.