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Unread 01-24-2007, 08:16 PM   #1
thundercat900
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3.8 Supercharger Kit 07 jeep

I work at HESCO and was wondering if there was any intrest in a Supercharger kit for the new 3.8 jeep engine.
I bought a new 07 unliminted and it is underpowered to say the least

We are currently putting together a base kit which should be good for about 50 hp and can be instaled in less the 3 hours and not having to modify any stock parts.
I'm just looking for feedback and ideas and comments from everybody out there with the new jeeps



We are still working on the plumbing and it should be on the dyno by friday. This picture here is not plumbed in yet.
Check out www.hesco.us for more info


Last edited by thundercat900; 01-27-2007 at 07:39 PM..
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Unread 01-24-2007, 08:17 PM   #2
BeerMonkeY
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im sure people will be intrested. avenger already has one out i think. but a cheaper, no other mod one would be nice
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Unread 01-24-2007, 08:24 PM   #3
bigwrm
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If you make it, I will co.... buy it.
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Unread 01-24-2007, 08:26 PM   #4
scottyc
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As with everything, depends on the price. But I would certainly consider it!

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Unread 01-24-2007, 08:38 PM   #5
thundercat900
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The picture above is the early stages of the base kit, Before the plumbing was done...I will update with new pictures in the next few day's or email me at jons@hesco.us and I will send you some


I looked at the avenger kit on there web site. It looks like they cut the hood to make it clear...NOT COOL. but its a early photo.

I hoping to have a basic kit that uses the stock air box and should keep cost way down compared to the avenger system. Its looking like all the parts can be installed from the top and basic hand tools are all the will be required....no opening up the engine or anything scary for the noobie.
Also using a "turbo style" supercharger with 3 inch tube stlye plumbing future mods will be a piece of cake.
maybe base kit in the high $3K low 4k range
intercooler upgrade $$$ down the road after dyno testing is finished on the base kit.
All future mods will be compatable with the base kit, so upgrades will be easy to install and won't break the bank all at once.

If there is anybody in the Birmingham Alabama area thay wants to be one of the first to get one and give me some feedback please give me a call at the shop 205-251-1472 Ask for Jon Schaefer

Last edited by thundercat900; 01-29-2007 at 10:25 AM..
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Unread 01-25-2007, 10:04 AM   #6
bamrneck
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I'm in Childersburg. I'll be keeping an eye on this thread as I'm definately interested in some more power. I'll wait until my warranty is gone tho. Have about 10K on it now and should be out of warr by late summer. I know there's a need for an inexpensive blower set-up. What kind of costs are involved in a chassis dyno for a vette?
thanks,
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Unread 01-25-2007, 10:12 AM   #7
thundercat900
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Quote:
Originally Posted by bamrneck
I'm in Childersburg. I'll be keeping an eye on this thread as I'm definately interested in some more power. I'll wait until my warranty is gone tho. Have about 10K on it now and should be out of warr by late summer. I know there's a need for an inexpensive blower set-up. What kind of costs are involved in a chassis dyno for a vette?
thanks,

We have LS1 edit and HPtuners for tuning late model vettes....as for dyno, it depends on what you need done. $80 an hour...just to run one and get some good pulls won't cost very much. We do a lot of vettes
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Unread 01-26-2007, 08:06 PM   #8
thundercat900
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The jeep is up and runing and the supercharger is a lot quieter than I thought it would be. Dyno testing will be done in the morning. Hopefully I will be street driving very soon. I'll keep ya posted


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Unread 01-26-2007, 09:05 PM   #9
surfcaster
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Underpowered?? Explain, please.............
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Unread 01-26-2007, 11:51 PM   #10
Laxstar46
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^^ I dunno how you would explain underpowered but basically the jeep isn't too quick or got get up and go. Which is not just a problem with the JK IMO. the 4.0 in the TJ wasn't exaclty a beast either, but I'm ok with that Jeep isn't a racecar but more power is always fun. I gotta say tho a supercharger would be sick nasty for the JK. I'm most interested in low end torque improvements.
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Unread 01-27-2007, 07:43 AM   #11
dodco1
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If you think your JK is under powered where you live come on up to 7000' elevation. We lose 10-20% just because of the lack of air. I will be looking to put on the supercharger on my 4dr auto JK as soon as the warrenty expires also.

How do you think to mileage will be affected? I was surprised to get 16mpg around town and 22-25mpg on the freeway. Do not want to lose that.
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Last edited by dodco1; 02-10-2007 at 07:28 PM..
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Unread 01-27-2007, 09:05 AM   #12
thundercat900
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Quote:
Originally Posted by dodco1
If you think your JK is under powered where you live come on up to 7000' elevation. We lose 10-20% just because of the lack of air. I will be looking to put on the supercharger on my 4dr auto JK as soon as the warrenty expires also.

How do you think to mileage will be affected? I was surprized to get 16mpg around town and 22-25mpg on the freeway. Do not want to lose that.
I will know in the next few weeks if gas mileage is gonna be affected. Under normal cruise when no boost is needed it will pretty much operate the same as stock, so I would think fuel mileage won't be hurt very much in those area's. When you get into the throttle and boost levels rise, more fuel is needed to compensate and fuel mileage may suffer a litte. But most vehicles we install superchargers on report only a slight loss of MPG probably because your not having to stomp down on the gas pedal as much to get moving.

Also the Kit should make boost at low rpm levels. Which is where the Jeep really need's it.

The kit is on my jeep as we speak and should be ready for the road very soon. I will be keeping a close watch on my fuel mileage.... as of right now it show's about 17 in town and showed 22 on the highway.
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Unread 01-27-2007, 09:36 AM   #13
Sweeney
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You'll lose a little mpg under cruise most likely due to the parasitic drag of supercharger... more stuff the engine has to turn. Similar to driving around all the time with the AC on. Under boost, well, it takes fuel to make power.
At 5 psi you should achieve a theoretical 30% increase in power. Parasitic loss from the supercharger, pumping loses etc. cut into that but with proper fuel and spark management that 5 psi should yield a good 20% increase.
Are fuel and spark being dealt with?
I'd like to see actual, uncorrected, raw dyno graphs of power and torque at the wheels.
Now, strap that puppy down and git some data!
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Unread 01-27-2007, 02:39 PM   #14
SouthFLJeeper
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Keep us up to date on how it works out, I will definetly be interested in adding some hp when I get mine.
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Unread 01-27-2007, 04:57 PM   #15
thundercat900
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Quote:
Originally Posted by Sweeney
You'll lose a little mpg under cruise most likely due to the parasitic drag of supercharger... more stuff the engine has to turn. Similar to driving around all the time with the AC on. Under boost, well, it takes fuel to make power.
At 5 psi you should achieve a theoretical 30% increase in power. Parasitic loss from the supercharger, pumping loses etc. cut into that but with proper fuel and spark management that 5 psi should yield a good 20% increase.
Are fuel and spark being dealt with?
I'd like to see actual, uncorrected, raw dyno graphs of power and torque at the wheels.
Now, strap that puppy down and git some data!
Very true, thats why we have 2 different compressors that we are testing with. We want the one with the best low end boost and lowest parasitic draw on the system.
And yes we are dealing with fuel and spark. We have been a supplier to JEEP for a long time and it does have its benifits.

We are also prototyping a plug and play unit that will give us full control of fueling and timing along with several other PCM controls.....stay tuned...

When I get some dyno data I will show both engine HP and raw to the rear wheel data so there will be no "fudge factor" LOL

I put about 30 miles on it today around town and so far it's looking good. Very quiet and smooth power.

I'm not going to post too many Pic's of the current setup.....Don't want the competition to copy...
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