Well today I got some time in on the HESCO
super charger. I didn't really get going until about noon my time as I had some work issues come up. I made some good progress on the installation until about 1:30 when the work calls started coming in. Progress slowed while I worked on re-routing 8 relays I had already previously installed but lived in the space the FMU (Fuel Management Unit) wanted plus it didn't help that the mercury was climbing to over 100* and I was in the driveway, full sun. All work stopped about 3pm and resumed at 5pm when the angle of the sun and the position of the house afforded me a little respite from the heat.
I still have to modify the AirRaid intake as no provisions for modified intakes are in place in this kit. But I managed to come up with a little something to do a test drive.
Oh and just so you know I'm no mechanic nor do I play one on TV.
But the test drive.
I noticed just cruising down the street with a slight uphill that there was a little more already. This was at the just over 2k rpm the SC begins to kick in. Now bear in mind I'm running 37" tires with stock 4:10 gearing with an automatic Unlimited I have a FlowMaster exhaust as well. The engine didn't sound like it was drowning and sounded more smooth. This is at 25mph with a slight uphill. Already I liked it.
Traveling down the 35mph road to the straight-a-way I really was going to test it out, again the engine didn't sound like it was drowning (blub-blub-blub) but more like it was humming. I climbed another hill and didn't gas it or anything and the JK did not down shift like normal but just kept plugging up the hill. All this so far is in the sub 3k rpm range and already I can tell something is different.
Finally I get to the flats in the alfalfa fields. This is a nice two lane road with 5 miles of visibility and little to no traffic after everyone gets home. So guess what I did. You bet I did. I punched it.
The tach climbed much faster than normal and the max rpm tranny shifts were very smooth. Not like before where it would take forever to reach shift points. I got up to 65 mph in no time and yes I felt a slight g-force set you back in the seat feeling. It felt good.
I cruised at 65 (normal highway speed for me) and the JK didn't bog down at all once it shifted into over drive. Even when the rpm's dropped to 1600.
Ok now for the return trip. I waited until I saw no traffic and from about 15mph I punched it. The JK jumped to life and made it's way through the gears in no time. I was at 80mph when I decided to let off the gas. After all this is a Jeep not a sports car. Plus 37" tires are not designed for fast highway speeds.
Over all I am really impressed and once the computer gets in tune with the new addition I'm sure I'll like it even more. I need to take another long road trip to really test it out but I doubt it will disappoint me.
Again this is with a heavy JK (5600 lbs at trail weight) running 37's with stock gears and an auto transmission. I would think that a 2 door with smaller tires and steeper gears and a manual should possibly get some good smoke out of this kit.
So far I rank this kit as #2 in my list of best modifications to my JK. Number one is still the lift kit and the handling on and off road I got with that.
I'll keep posting some updates as I use this kit and the JK more to give some real life experiences.
So far 5 out of 5 on my list.