Muffins

Ditto, thanks for posting up your install experience

jkerr

That's where we started the test. We didn't pull from a dead stop.

Alaska-HWY JK

How much is it going to make between 2000 and 3000 rpm is what I'm wondering. I'm seriously considering this setup. Not trying to hijack a thread but will this improve highway driving or still downshift steady? I have the offroad gearing, I just want it more highway friendly on the way there. 37's and 5:13s. I can't remember does the Diablo make changes for the tires and gears as well as the tune.

cfr

I'm thinking of a RIPP myself so I had to run the numbers on this.

Using only the data in the paragraph above, you're seeing an 8 MPG improvement (probably a "best case" assumption). Given gas prices at $3.39/gallon and assuming that you'd run the same gas you'd have to drive ~56,000 miles to pay for a $5000 RIPP Supercharger (about 3.8 years of driving at 15,000 miles/year).

Again, I'm a RIPP supporter and potential customer. Just need to make sure we're setting proper expectations for return on investment with the Chief Financial Officer of the household (aka wife).

JK084

Heh, with those assumptions, I'd be looking at a 10 -11yr ROI.
But, gas prices will likely rise, and I have to factor in the smile factor.

Assuming the increase in mpg are based on normal driving, where the JK is not working as hard.

I dunno about you guys, but If I had a supercharger, my gas gauge would look like a tach in reverse!

jkerr

The SuperCharger comes in about 2000 RPM and continues to build from there. I have 5.13 gears on 35's. I run 2500 at 70 MPH on the freeway. It will shift down sometimes going up large hills, but nothing like it use to. Most of the time it will hold over-drive.


I don't think many people would run out and buy a supercharger because it is going to save them gas mileage, but it is a criteria that the wife CFO (Chief Financial Obstructionist) would take into consideration. Every other mod I've made (tires, gears, bumpers, etc.) have reduced gas mileage. This is the first mod that has increased it. And I've been driving my Jeep like I stole it. Go figure?

An engine exchange is the only other option out there that would provide similar power. Any good CFO would review all of the facts before ok'ing an expense. After reviewing all of the required costly changes for a Hemi conversion (axles, drive shafts, more weight, emissions, labor, vehicle downtime, etc.) and comparing them to a SuperCharger that is $4K, improves mileage even marginally, is a bolt-on appliance that practically anyone can do, the system can be removed if it has to go to a dealer for Warranty/maintenance, etc. It was an easy decision to make for me and my CFO.

RIPPMODS

Excellent - and that's where most of the power is found - we've tuned on 89 - through 93 fuel - Our goal is a conservative One Tune Fits all. Taking into the account our tunes go around the world.

RIPPTECH

jkerr

My tuner was very impressed with your tune. It is well constructed. And I can attest to the fact that it ran great in my rig. It is understandable that you have to air on the conservative side. Every jeep and environment is different. A dyno is the only safe way to get max potential out of any performance mod.

totdoc

Very nice! Now the big question on my mind...will there be a RIPP SC for the Pentastar?

RIPPMODS

Good observation - Jkerr's Jeep is an Auto - When testing with an Auto you cannot make HP passes until the torque converter locks up and you get your ONE to ONE ratio with no slip --- JK's converter locks up at (3200)


Thank you

Thats funny right there - I don't care who you are...

RIPPTECH