How does a throttle body spacer help the performance of the 3.7L engine, or is it snake oil? Anyone out there have first hand experience with one installed in their Liberty?

_________________
2002 Silver Sport 4x4 3.7L-5 Speed NV3550 Manual Transmission-NV231J TC-Frankenlift-AllJ Interior Rack-ARB Bumper-Hella Driving Lights-Electric Trailer Brake-Moog LBJs-JBA 4.5 UCAs-Detroit Trutrac (Front)-245/70/16 Dueler A/T Tires-Amsoil EaA201 Air Filter-Tom Woods Custom Front Drive Shaft-Rock Lizard Gecko HD Roof Rails-Onboard Co2

You don't want a throttle body spacer. Get a throttle body from Fastman. They really work. Better throttle response and an increase in power.


http://www.thefastman.com/Throttlebodies37.asp

_________________
June 2001 Liberty Limited 4X4
Frankenlift II Premium, Al's Upper Arms, 245/75R16 C Silent Armors on Moabs, RL Skink Super Sliders, Rear DTT, Riddler Diff Cover, Fastman Throttle Body, Profinish-Proglass Hood, Borla Dual Outlet Exhaust, TransGo Reprogramming Kit, APS Stall Converter, 4.10 Gears, B&G Chrysler PCM, Lots of Line-X, etc...

The tb spacer worked well on the jeep inline 4 and 6 engines, more so with a bigger throttle body as well. I called AEM to see if thier intake included a tb spacer on the 3.7 kit, they said no, there was no benifit of a spacer on the 3.7. The 2.5 and 4.0 intake kits do come with the spacer. Bottom line, is that AEM does the work for you, if thier intake kit has a spacer, there was some benifit found, if there's no spacer, no benift.

_________________
06 jeep liberty 4x4 65th aniver edition

04 ranger xlt sc 4x4, 4.0 sohc, 5-speed, gibson dual sport, cai, udp, bama tune, BFG's, and tru-trac

07 redfire mustang GT, 4.6 3V, 5-speed

I've had one installed for about 7500 miles now, and really haven't noticed any difference in MPG, however when in the midrange of any gear (I have a 5-Speed), it feels like a real kick in the pants when you need to pass someone, or just want to be pushed back in your seat a little. I only paid $19 for mine on ebay, brand new, otherwise I wouldn't have bought one. The only reason I considered it was during the gas price hike. The "whoosh" sound when it's new is kinda neat as well, haha. I had to clean out the throttle body just recently due to a REALLY annoying squeak at about 1/3 pedal. I never experienced this prior to installing the TBS, and I have almost 60,000 on my Renny. Overall, I wouldn't pay the money for it. I'm actually considering removing it. Go with a Fastman throttle body instead.

_________________
2003 Renegade 4X4 5-Speed, Bright Silver *TRADED for 2013 Wrangler*
PIAA 520 Auxiliary Lights
Garmin GPSMAP 76S
DynoMax Ultra Flow SS Muffler
Amsoil Ea "Absolute Efficiency" Air Filter
Nokian Vatiiva 235/70/R16 Tires
Pixeldzn's "RENEGADE" decals
Support the 2nd Amendment - It's your right!

Since its a fuel injected engine a spacer won't help. You'll get help from increased volume of air, not a longer intake.