The wife's 08 Rubi Unlimited automatic sits on 37s with a Teraflex long arm, EVO front coilovers, and rear EVOLever coilovers system.
When we bought it, it was about 1 year old, with less than 2k miles. EVO had built it with the suspension and 5.13 gears with 37s. To correct the speedometer, it had an AEV ProCal. For a little extra performance and to work with the EVOLever system, it had a Rancho catback.
Driving it back to Montana from Orange County, California, it didn't take very long before we were reminded of how bad a match the 3.8L is with the 42RLE automatic transmission. It sucked. The tranny would hunt for gears on inclines or with strong crosswinds.
Shortly after bringing it home, I upgraded to a Superchips Flashpaq towing tune, a K&N drop-in air filter, and switched out her 37" KM2s on Walker Evans beadlocks for lighter, 37" old-style MTRs (load range C) on 15" steel wheels.
These mods made considerable difference in performance, but freeway driving in Montana was still a disappointment.
Eventually, we pulled the 5.13s and installed 5.38s. The difference of the extra 150 rpm at highway speeds really helped, and overall fuel economy improved due to reduced tranny downshifting.
I had to reinstall the heavier tires with 17" aluminum wheels on her JK to clear upgraded front brakes.
Fast foward to wheeling with Co4Lo in Colorado last fall, and I saw how well his RIPP supercharger worked. I was intrigued. Years ago, I had an Avenger supercharged TJ with 4.88s on 35s that was a blast to drive, although it wasn't easy to tune for the altitudes of Montana, Wyoming, Colorado, etc.
Fast forward to EJS '12, and I spent a good amount of time wheeling along side several RIPP supercharged JKs. I was impressed, and I decided that my 2dr should have one.
And...I realized that if my JK had one, my wife would expect the same treatment for her JK.
So, I recently bought two Gen2 V3 kits--one for each JK.
This thread will be for the install on my wife's JK--she gets hers first.
Ready for the install:
High altitude pulley (11 psi) and belt:
Grill off and aftermarket tranny cooler relocated to make room for intercooler:
Her old Superchips Flashpaq is unloaded and returned to stock--to be used on my daughter's TJ.
The Diablosport DS Downloader program is installed on my computer.
The wife's JK stock callibration (tune) is backed up to her new, Diablosport Predator programmer, and the RIPP supercharger tunes are updated and loaded to the programmer.
The plan is to install the kit in my garage over the next couple nights.
Then, we will drive the her JK on a road trip through Yellowstone this weekend as we celebrate our 22nd anniversary.
I'll update this thread as I go with relevant pics and observations.
However, I doubt I can come close to matching this awesome install video:
RIPP Superchargers GEN2 Supercharger kit Install for Wrangler 07-2011 - YouTube