Next, Shawn removed the stock air filter box and tube, and the
new Trail Jammer high-performance filter box was installed using
three bolts - one original and two supplied in the kit. The grill
support bar on the passenger side had to be detached and fed
through a hole in the filter baffle.
new Trail Jammer high-performance filter baffle was
installed using three bolts, one original and two supplied
in the kit. Having a u-joint socket will be a great
help for the radiator bolt.
Trail Jammer’s intake tube installs easily using
hose clamps at each end.
The throttle body simply bolts and you reconnect the harnesses.
The Edge module connects in-line to the stock harness. Easy!
With the new filter clamped in place, the air tube was attached
to the filter baffle and throttle body. Now the valve cover breather
hose was connected with its hose clamp.
Finally, the Edge
Trail Jammer Electronic Module was positioned in the driver’s
fender well with Velcro, and the interconnecting plugs were
attached to the corresponding factory harness.
Finished! Open a cold one.
Completed install in a third TJ - this one a '97 Sahara |
Completed install in a third TJ - this one a '97 Sahara
Before we started
work on the Wrangler Sport, we took to the road for a seat-of-the-pants
drive and some time tests. We also
climbed a couple of hills outside of town, just to get a “stock” feeling.
From 0 to 60 our average had been 12.6 seconds, and from 50 to
70 took 11.6 seconds.
dyno, we saw our horsepower jump from the stock 156 to
177 HP and the original torque climbed to 232 ft-lb.,
a substantial 15% gain for such a simple installation.
With the Trail Jammer kit installed, our 0 to 60 time dropped
to 10.9, and our original 50 to 70 time of 11.6 seconds dropped
impressively to 9.9.
The real difference in feel was on the highway and climbing.
The engine seemed more responsive and alive. On the dyno, we
saw our horsepower jump from the stock 156 to 177 - a substantial
21HP gain for such a simple installation. The original torque
climbed to 232 ft-lbs.
The Rubicon showed a similar horsepower increase, but how would
it do in the dirt? We found some reasonably challenging rock
outcrops on a trail behind Browns Valley RV Performance Center
and Jason put the Rubicon into its crawl mode with both lockers
engaged. The results were impressive, with a noticeable increase
in torque, yet it still retained the sensitivity of the throttle.
The idle was not affected at crawl speeds.
Bottom line, the 4.0L
six is a good little engine. If you’re
not quite up to the expense and work of stuffing in a small block
V8, the Edge Products Trail Jammer is a great way to increase
performance of your Jeep, and you can do it yourself during the
NFL Halftime Report.
MSRP for the complete kit is $949.00 or $649.00 for just the
throttle body and electronic module if you already have an intake
on your Jeep. Edge Products also manufactures a full line of
plug-in modules, programmers, and in-cab controllers for all
popular late-model domestic trucks, vans and motorhomes.
|Gary Wescott is part of the famed Turtle Expedition, Unltd. We've followed his stories in Four Wheeler over the years and were very pleased to have him as a contributor to Rockcrawler.com. You can learn more about Gary by visiting www.turtleexpedition.com
Gary at Gary Wescott