Supercharger regearing question?
JK Enthusiast
Joined: Mar 2011
Posts: 191
Likes: 0
From: TN
Originally Posted by blockrockin
for me 5:38s 37"tires and ripp supercharger = perfect match 
if you have 35s 5:13's are perfect .
if you have 35s 5:13's are perfect .
Sponsoring Manufacturer
Joined: Jul 2007
Posts: 1,189
Likes: 2
From: New York
I just lifted my JKU and put her on 35's. I have notice my RPM's have dropped about 400 to 500 from where they were stock. My question is has anyone installed a Ripp's supercharger with out regearing first? Did it help with the bogged down feeling? I currently have 4.10's and was thinking of jumping to either 4.56 or 4.88 or just going with the Ripp's supercharger. Is there a chart that tells you how much your rpm's will increase with a change in size of gears? If anyone can help me out that would be great.
Thanks
Thanks
With respect to just gearing and/or a supercharger, the power will still be low, you still have a 33.3% drive train loss. The gears won't make more power, they will correct the tire diameter and better match the power you have to transmission ratios and engine RPM.
We suggest doing gears first so you get an understanding for the drive train and engine dynamic... and then add the power. We even went as far as making video of a stock 3.8 powered Minivan to demostrate the engine natural power band. This video is to demonstrate the NA - RPM points of the 3.8l V6 AT 70MPH - you can see as the video progress's that the RPM's hover between 2000 and 3500rpm.
http://www.youtube.com/watch?v=16A5-Xgw-OY Your going to have to trust us on this one... the truth about power in a JK is the only thing we want to convey.
RIPPTECH