Phone 248-362-1145
Fax 248-362-1032

1834 Thunderbird Street
Troy, MI 48084 USA

Engineering, manufacturing, sales, service, calibration, testing, and modification, of mechanical and electric
fuel injection systems and components for all types of racing and performance.

Click On The Brand Name To View Some Of The Manifolds We Manufacture.


  1)  Three Piece Manifold: The two sides of the manifold and the valley
       plate are completely separate.


 A) Allows a perfect fit against the cylinder head even with a decked block
      or angle
milled heads, or if something just isn’t right somewhere. No
      more angle milling
of the manifold!

 B) Raising the ports: In the past, if someone wanted to raise the ports in
      their manifold,
say .200”, they had to add material to the outside of the
      manifold, then grind the roof
higher, then fill the floor. When they were
      finally done, they had a compromise in the
performance, as they had
      sharpened the curvature of the short side of the runner.
  The Kinsler
      Solution: Kinsler manifolds are machined to bolt directly onto the cylinder

      head. A Kinsler manifold can be machined to standard port profiles,
      variations of them,
or to your special port layout. If you have a super high
      port, or a very large or small port,
Kinsler can custom machine one of our
      manifold blanks to bolt right onto your heads.

 C) Correct for core shift in your heads Since it is easy to move each manifold
      up or down,
forward or rearward, perfect alignment can be obtained with
      cylinder heads that don’t
have the ports properly located. (This is a common
      problem, especially with production

 D) Sealing it up: Both the manifold and the valley plate have grooves for
      sealing them
to each other. The valley plate has sealing grooves on the
      bottom side at the front
and rear for sealing it to the top of the engine block.
      Simply squeeze silicone sealer
into all the grooves and assemble. The valley
      plate also has a 10-32 bolt hole at the
front and rear, giving the option of
      bolting it to the top of the engine block.

  2) Runner Design: We constantly work with top engine developers to keep
      refining our
runner designs. We change them whenever we find one that
      will work better. We can
also do one to your specifications and make it work
      for you. Tuning: All the adapters
on the same model manifold have the same
      bolt pattern, so if you want to try different
diameter ramtubes, simply bolt on
      another set of adapters and tubes. It is another way
to tailor the shape of the
      engine’s power curve.


  3) Precision Ports in the racing industry, most manifolds come with as-cast
      ports, and
they are often not in the proper location. Every manifold we
      make has the ports
machine-cut exactly to its print. To ensure precise
      location of the bolt holes to the
ports, they are both cut while the manifold
      is in the same fixture.

  4) Port Wall Angles: We pay a lot of attention to the angle of the roof, floor,
      and the two
walls as they meet the gasket face. If the wall angles in the
      manifold do not match those
in the cylinder head, the air will not flow as
      well as it could.

  5) Blended Ports: After the ports are milled in, they are very carefully hand
      blended to
the runner in the casting for a totally smooth transition. Most
      top engine developers
have found that further porting work does not give
      them a power

  6) Separate Ramtube Adapters hold the ramtubes to the manifold. The
      ramtubes are
secured by pinch clamps for easy removal to service air
      filters,   etc.
    If you break a Pinch Clamp, you can simply install a new


       Tuning: All the adapter for the same model manifold have the same bolt
       pattern, so if
you want to try different diameter ramtubes, simply bolt on
       another set of adapters
and tubes. It is another way to tailor the shape
       of the engine’s power curve.

       Sealing: The ramtubes are sealed to the adapter with an o-ring seated
       into the inside
diameter of the adapter. The adapters are sealed to the
       manifold with o-rings that seat
into the top of the manifold. These o-rings
       keep out dirt and water to prolong engine life,
and there are no gaskets
       to blow out.


  7) Ramtubes: Our ramtubes are made from high quality aluminum to resist
      denting while
maintaining their light weight. While this is more costly, they
      are truly a superior piece.
If our 1800 ramtubes are shortened, they will slip
      into our adapters without having to turn
the outside diameter, as they are
      made with the proper diameter all the way up the tube.
  If our traditional
      ramtubes are shortened, they must have the base remachined to fit the

  8) Universal Nozzle Boss: Most Kinsler manifolds are available with bosses
       that are tapped
13/16-16. These accept our adapter inserts to accommodate
       any type of nozzle/injector,
(i.e. constant flow, EFI, Lucas, etc). To change
       from one type of nozzle or injector to
another, simply remove the old inserts
       and install a new set.  We also have dual bosses
available on most of our
       units, and bolt-on bosses to go on the runners of any other brand
or type of
       manifold. Only aluminum manifolds should be ordered for off-road or marine

      Caution: Magnesium is badly corroded by water or liquid alcohol.
      Monitor the magnesium where it contacts the engine coolant.
      Alcohol must not sit in a runner for more than a few hours.

  9) Magnesium alloy manifolds and top adapters are available for most
models to reduce over 1/3 of the casting weight.

10) Throttle Shafts: Our standard throttle shafts are a milled-on-one-side style
      made from
a high strength steel alloy, then hard-nickel plated for added wear
      resistance. We offer
stainless steel as an option for maximum corrosion
      resistance, for boats operating in
salt water, etc. Optional back-cut shafts,
      and streamline throttle plates are available for
increased air flow.

11) Bronze Bushings: All of our manifolds and throttle bodies come standard
      with bronze
throttle shaft bushings for extra smooth throttle operation and
      resistance to wear.

manifolds 3

12) Throttle Arms & Stops: These are heavy-duty to prevent slippage!
       Machined from 2024 high-strength aluminum and anodized blue.
       Grade 8 high-strength cap screws are used for clamping.

manifolds 4

13) Torsion Safety Springs are available to help close the throttles in case
      your throttle
linkage becomes disconnected. These should never be used
      as the only throttle return
spring. Use a separate spring to return the throttles,
      this is a must. There must also be
a toe strap on the throttle pedal so the
      throttle can be pulled shut in case the springs break.

14) Rod Ends: A small part, but so very important. We use high quality Rod
      Ends to give
you the reliability and resistance to wear that you need in your
      race vehicle. The rod
end has a plated body, chromate treated steel race
      and a heat treated alloy steel hard
chrome plated ball.

15) Billet Spring-Screw Universal Throttle Shaft Linkage:
      The throttle shafts can be split in between the runners of the manifold and
      our patented
Spring Screw linkage installed to ensure bind-free operation
      regardless of uneven installation
bolting, (which will distort any manifold) or
      engine heating, (any brand of aluminum or
magnesium manifold will grow
      quicker as it heats than the steel throttle shaft does). This
goes a long way
      to get rid of the old stuck-throttle-into-the-wall blues! Optional on most of

      our manifolds and we have kits that will allow installation of this linkage on
      any brand of

16) Fuel Metering: Our manifolds are available equipped for Constant Flow,
      Electronic (EFI),
or Lucas Mechanical.


     No one else offers a system that even approaches the quality that we have

     described, and no one else gives you as much value per dollar. Top engine

     builders and racers tell us that these systems not only outperform anything

     else presently on the market, but that our calibrations let them dial the engine

     in so quickly that the time, wear and tear they save makes our system truly

     inexpensive compared to other brands they have used. They tell us that our

     manifolds not only work better, but that the precisely located, cut, and

     blended ports alone saves them more them the difference in cost between

     our manifold and those of our competitors.

Web Analytics