03-27-2015, 11:51 AM #1
TIAL bov closed or slightly open on ilde
My bov is slightly open on idle, is it normal or the spring is tired? I have E1 wheel and R&D cooler on my 2009 fx sho
Thx for help
03-27-2015, 01:50 PM #2
That's fine. As soon as you touch the throttle it will close.
03-27-2015, 08:35 PM #3
Mine stays open till about 5.5k rpm
03-27-2015, 10:24 PM #4
- Join Date
- Mar 2014
- Siesta Key, Fl
Are you joking?
Any BOV that is open when you are making boost is an issue. The reality is at idle the BOV should really be closed but since we have a SC setup with a really light spring the vacuum of the engine is probably stronger than the spring to keep it closed all the way.
03-27-2015, 10:33 PM #5
Normal for it to be open at idle. As soon as you hit boost it should close. You could try a different spring. Some manufacturers like Tial have a chart to match springs to the vacuum the engine pulls.
03-28-2015, 04:28 AM #6
Thx for help, I will try a new spring just to see how it works.
03-28-2015, 07:07 AM #7
The bov will be open when ever you have more boost than you are using
And idling is one of those times
03-28-2015, 01:39 PM #8
I dont make boost yet at 5500 rpm
03-29-2015, 12:33 PM #9
What do you mean? I think your engine can not process 19 psi so the bov is open till 5k rpm.
03-29-2015, 12:52 PM #10
I have more than double the lift of the stock cams.
my engine uses so much air that at 5.5k rpm is still have lots of vacuum.
when i had a 19lbs wheel it made only 17psi boost at 9k rpm with these cams.
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