Options
Description
Tial
Sport's
new
Q
Blow
Off
Valve
is
a
newer
version
of
the
original
50mm
BOV.
Featuring
an
improved
design
through
countless
hours
of
R&D,
Tial
was
able
to
increase
60%
more
flow
than
the
original
design.
This
is
now
believed
to
be
the
highest
flowing
on
the
market.
Made
from
6061
aluminum
alloy
with
a
50.5mm
valve
and
V-band
clamp
mounting,
this
new
version
just
got
better.
Springs
available:
*
Pink
-11
PSI
(-22
in/HG)
*
Un-painted
-10
PSI
(-20
in/HG)
*
White
-8
PSI
(-16
in/HG)
*
Black
-6
PSI
(-12
in/HG)
Includes:
*
Q
BOV
Assembly
*
Tial
V-band
clamp
*
V-band
weld
flange
*
High
pressure
O-ring
*
Tial
air
fitting
Customer Questions
Question:
Hi, for the tial q bov what spring rate would you recommend for my 94 300zx tt with Jwt 530 turbos? Thanks
- Mike
Answer:
Hi Mike, your spring selection will depend on how much vacuum your vehicle draws at idle. You want to run a spring tension that's slightly stronger than your idle vacuum. We attached a instruction sheet to the product page showing which spring to select based on your idle vacuum.
Question:
How do you determine which spring is right for your car?
- Justin
Answer:
Hi Justin, you generally want the BOV spring a little bit weaker than however much vacuum your car pulls at idle and/or with the throttle closed. This ensures that when you let off, the vacuum created by your engine will overpower the spring and force it open.
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