Many people have replaced the troublesome original equipment carburetor on the Tigre
powered Jungmans with the Ellison Throttle Body Injector (TBI) and report substantially
Most installations have been 150 horsepower Tigre engines which use the EFS-4
TBI. Because it is a different size and shape than the original carburetor, an adapter
must be fabricated to allow mounting to the original manifold. Our customers report
that the airflow characteristics of the air intake air box is such that the regulator of
the TBI must point forward and a spacer must be fabricated to mount between the Throttle
Body and the manifold. Also, the Tigre fuel system must be configured to deliver the
2-6 psi which the TBI requires. Linkage operating the throttle and mixture
also needs to be modified.
Photographs of two typical installations and a sketch showing TBI orientation are shown
A typical installation looks like this, notice the spacer.
See comments related to carburetor heat,
fuel filtration, and
suggestions when planning a TBI installation on a Tigre engine.