New Technology for throttle bodies !!

The Only Four Barrel Drive-By-Wire Throttle Body in the racing industry.

1991 – We made the first in the speed industry billet 4-barrel Dominator 4500-series throttle body

2006 – We incorporated a dedicated high flow idle air control (I.A.C.) provision into the housing

2019  – Another first in the speed industry !!!  We packaged our Drive-By-Wire (DBW) system onto the totally re-designed throttle body.  The Version 2 throttle body has an increased throttle size, now 2.250″ .  Throttle shafts move effortlessly on Kinsler’s bearing style architecture with retainers which have internal lip seals.  The initial customer is an Off-road Trophy Truck Engine Builder, so this package is built for life in a very rough and dirty environment.  

Take a Look at the Drive-By-Wire in Action !!

Top view of Kinsler tapered throttle plates

Kinsler Billet Four Barrel Throttle Body with 2 1/4″  throttles

and Optional Drive-By-Wire throttle control

Back cut throttle shafts for improved air flow on Kinsler 4 barrel throttle body

4500 Series mount flange, perimeter o-ring, no gasket required

Edge to edge of throttle bores 4.775″, equal spaced bores

Counter rotating throttle shafts on Kinsler billet 4 barrel throttle body

Counter rotating 1:1 throttle plates

Overall height of billet throttle body 2.550″ (not including linkage)

Tapered throttle plates in Kinsler four barrel throttle body

.500″ diameter throttle shafts, contoured at throttle bores

Supported on bearings with lip seals and seal retainers

1/2-13 thread-in steel insert, accepts 5/16-18 stud for air filter mounting

Kinsler Billet 4500 with Drive-By_Wire

Machined to accept mounting bracket of Kinsler’s Drive-By-Wire motor isolation mount

Dual TPS option on Kinsler Billet throttle body

Dual Throttle Position Sensor (TPS) mounts, flush mounting design for compact packaging

Kinsler Drive-By_WIie motor on Kinsler billet 4 barrel throttle body

Kinsler Drive-By-Wire motor package, complete with isolation housing, mounting bracket,

and billet bearing connector link

Note:  Our DBW motors require a programmable Proportional-Integral-Derivative (PID)

A control algorithm using three coefficients

This is a control loop feedback mechanism, providing a continuously modulated control

We use positioning feed-back provided by 6-wire TPS