Put Formula-1 based engineering in your S38
powered BMW!
Let our VAC High Performance BMW Valve Springs
& Retainer Kit extract the most from your camshafts!
Designed with the aid of a Formula-1 engineer;
our springs are guaranteed to out perform the competitions valve
springs at any price.
- Capable of burst-revving to 12,000 RPM for that added margin of
safety against over-revving and that mis-shift you are trying
to nail down.
- Designed for maximum reliability
- Capable of handling even the most aggressive of cams
- Compatible with all performance camshafts we have installed in
the M42
- Shot-peened for stress relief
- Dual-interference H-11 Alloy* springs to control harmonics
across the rev range and reduce damage from valve-drop if
a spring fails.
*H-11 Alloy is a metal often used for highly stressed structural
parts (such as aircraft landing gear) and also offers
resistance to thermal fatigue.
This 72 piece kit features:
- (24) VAC dual-interference springs capable of extreme 12,000
RPM for that added piece of mind (Racing, Over-rev/Mis-shift,
etc)
- (24) VAC Valve Retainers (Steel Alloy or Titanium)
- (24) VAC Spring Seats
- All parts Made in USA!
Q: Which Material retainer should I get?
A - part 1: Titanium Retainers: offer an
extremely light weight choice for racers that are determined to
maximize performance down to each gram of the valvetrain. Ideal for
very high RPM race & sprint use or you plan to switch to solid
lifters or are building an all out race engine that will be
regularly inspected or torn-down to rebuild.
A - part 2: Steel Alloy retainers work perfect
whether competitively racing or daily driving. They offer excellent
weight reduction Vs. stock retainers, and are extremely strong.
This is the choice for a street car, or HPDE cars that are
expecting to go multiple seasons or years without opening the
engine for tear down.
VAC Tech Note:
** Please note that because we engineered this set from a clean
design; springs retainers and seats are all sold together as the
superior dual spring arrangement must be used with the correct
retainers and seats together and are not compatible with OEM
seats/retainers, therefore springs are not available separately
other than for replacements.
Put Formula-1 based engineering in your S38 powered BMW!
Let our VAC High Performance BMW Valve Springs
& Retainer Kit extract the most from your
camshafts! Designed with the aid of a Formula-1 engineer; our
springs are guaranteed to out perform the competitions valve
springs at any price.
- Capable of burst-revving to 12,000 RPM for that added margin of
safety against over-revving and that mis-shift you are trying
to nail down.
- Designed for maximum reliability
- Capable of handling even the most aggressive of cams
- Compatible with all performance camshafts we have installed in
the M42
- Shot-peened for stress relief
- Dual-interference H-11 Alloy* springs to control harmonics
across the rev range and reduce damage from valve-drop if
a spring fails.
*H-11 Alloy is a metal often used for highly stressed structural
parts (such as aircraft landing gear) and also offers
resistance to thermal fatigue.
This 72 piece kit features:
- (24) VAC dual-interference springs capable of extreme 12,000
RPM for that added piece of mind (Racing, Over-rev/Mis-shift,
etc)
- (24) VAC Valve Retainers (Steel Alloy or Titanium)
- (24) VAC Spring Seats
- All parts Made in USA!
Q: Which Material retainer should I get?
A - part 1: Titanium Retainers: offer an
extremely light weight choice for racers that are determined to
maximize performance down to each gram of the valvetrain. Ideal for
very high RPM race & sprint use or you plan to switch to solid
lifters or are building an all out race engine that will be
regularly inspected or torn-down to rebuild.
A - part 2: Steel Alloy retainers work perfect
whether competitively racing or daily driving. They offer excellent
weight reduction Vs. stock retainers, and are extremely strong.
This is the choice for a street car, or HPDE cars that are
expecting to go multiple seasons or years without opening the
engine for tear down.
VAC Tech Note:
Please note that because we engineered this set from a clean
design; springs retainers and seats are all sold together as the
superior dual spring arrangement must be used with the correct
retainers and seats together and are not compatible with OEM
seats/retainers, therefore springs are not available separately
other than for replacements.
