Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK > Engine Performance/Intake/Exhaust

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 04-18-2012, 11:38 AM
Massster's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Sep 2010
Location: Lima, Peru
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1496
Massster is on a distinguished road
Send a message via MSN to Massster
Question Boosting Options for the 5.7L WK

Hey Guys,

I own a 2006 JGC with a Hemi inside, it’s my daily driver and I occasionally use it for some off road adventures. Aside from the suspension, cosmetic mods and the Predator the rest of it is completely stock.

The thing is that I want to boost it and the turbo kit from NCTS is not suitable for my case because of the off roading (rivers, sand dunes, rocks, etc) so Im looking into the supercharger option because I can get my hands on a fairly cheap Supercharger Kit (Powedyne supercharger, Spearco Water/Air Intercooler, etc) that would require some custom fab to fit in the WK (custom made bracket, additional pulley in the damper, etc) and additional gadgets (SRT4 injectors, Map Sensor, etc) to make it functional.

Is there anyone out there that has done this? (Not necessarily with the same parts) can I get a CMR tune for the Predator to manage the added hardware?, any special considerations I should take?

Thanks in advanced for your comments
__________________

__________________
Reply With Quote
  #2  
Old 04-18-2012, 08:53 PM
Member
My Jeep: 2006 5.7L WK
 
Join Date: Feb 2012
Location: Milwaukee, WI
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1000
naidib04 is on a distinguished road
Re: Boosting Options for the 5.7L WK

I am sure you can find something on the LX forums. Those platforms have more guys supercharging the hemi.
__________________

__________________
2006 WK Limited - Hemi, QDII, OME HD with MLL, 265/70R17 Firestone Destination MT, Gutter Guard Grill, Cobra CB with 3' whip, Custom 3'' exhaust, aFe CAI with Pre-filter, Low Profile Driving Lights, Saguaro 4xC CB mount, Front Tow Hooks, Superchips Flashpaq 3875, Shorty Antenna, Rola Roof Rack, Rusty's Adj. Rear Track Bar
WTB roof rack, armor
Reply With Quote
  #3  
Old 04-18-2012, 10:44 PM
4.whoa's Avatar
Senior Member
My Jeep: 2005 5.7L WK
 
Join Date: Nov 2010
Location: ks
Posts: 1,732
Thanks: 46
Thanked 14 Times in 12 Posts
Rep Power: 1141588
4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute4.whoa has a reputation beyond repute
Garage
Re: Boosting Options for the 5.7L WK

There are a few srt's here with superchargers. The supporting mods will be the same as with a turbo. i'm not sure what you meant by srt injectors ,but stock ones probably arent gonna be the ones you want. A supercharger can potentially add a good 100 horsepower or so , & you'll need more then you can get from them. Also the srt map sensor should be a 1 bar (n/a) and with boost you'd need a 2 bar( to reference the boost )
__________________

Build thread:http://www.jeepgarage.org/f14/whoas-...ead-33075.html
Quote:
You think that's quick................heh...wait till I hit 5th! -Sir Mix-A-Lot
Reply With Quote
  #4  
Old 04-19-2012, 12:06 AM
remmy's Avatar
Boopity boop sha boop!
My Jeep: 2005 5.7L WK
 
Join Date: May 2010
Location: Fort Walton Beach, FL
Posts: 455
Thanks: 1
Thanked 3 Times in 3 Posts
Rep Power: 2064
remmy is on a distinguished road
Re: Boosting Options for the 5.7L WK

It is going to cost more $ than its worth. I promise you that. I also dont advise you boost a car that was never meant to do so. I went through this with my old Si and the things I had to do to that motor just to have it turbocharged way outweighed jut buying a car with a factory forced induction.
__________________
'05 HEMI WK
Custom Long Tube Headers
Airaid Shorty Intake
Custom Exhaust
Dyno Tuned on mi-grade pump gas:
Baseline: 241whp
Final: 271whp

My Audio Build
Reply With Quote
  #5  
Old 04-19-2012, 09:24 AM
Massster's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Sep 2010
Location: Lima, Peru
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1496
Massster is on a distinguished road
Send a message via MSN to Massster
Re: Boosting Options for the 5.7L WK

4.whoa, I meant SRT4 injectors and map sensor, I believe they will fit and work fine for the application.

About boosting a N/A born motor, I don’t believe is that much trouble if the boost is going to be at a "reasonable" level for non-forged internals or if the motor is well known for being over designed in terms of material strength. Do you really believe that 5-6 psi would damage a Hemi?
__________________
Reply With Quote
  #6  
Old 04-19-2012, 10:29 AM
Escape's Avatar
Senior Member
 
Join Date: Jul 2009
Location: Michigan
Posts: 1,911
Thanks: 0
Thanked 26 Times in 25 Posts
Rep Power: 113248
Escape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond repute
Re: Boosting Options for the 5.7L WK

At 8 psi you will be fine.

It's not the boost that's the killer its the tuning. You must have the proper tuning.
__________________
[SIGPIC][/SIGPIC]
Forged, Stroked, Blown, Bottle Fed & More
Reply With Quote
  #7  
Old 04-19-2012, 10:55 AM
Massster's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Sep 2010
Location: Lima, Peru
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1496
Massster is on a distinguished road
Send a message via MSN to Massster
Re: Boosting Options for the 5.7L WK

Thanks for your answer Escape. Do you think that the proper tuning can be achieved with a Predator?
__________________
Reply With Quote
  #8  
Old 04-19-2012, 11:19 AM
Member
 
Join Date: Feb 2010
Posts: 859
Thanks: 0
Thanked 6 Times in 5 Posts
Rep Power: 7958
dmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond reputedmsfun has a reputation beyond repute
Re: Boosting Options for the 5.7L WK

I agree, 8 psi and you do not need forged internals, and should be good for at least 100 more HP and torque. THe Predator can be tuned for this, and get a custom dyno tiune from an experienced Hemi shop, not a mail order CMR tune, and do this before running it at WOT for sure.
__________________
2006 GC Overland QD II
5.7 Hemi, Modern Muscle 85 mm CNC ported TB, Apexi super voltage stabilizer, Billet Tech. Catch Can, Koni FSD shocks/struts, SRT8 sway bars, Cooper AT3's, Amsoil fluids, Diablosport Intune CMR tuned by Hemifever tuning.
Reply With Quote
  #9  
Old 04-19-2012, 12:30 PM
Massster's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Sep 2010
Location: Lima, Peru
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1496
Massster is on a distinguished road
Send a message via MSN to Massster
Re: Boosting Options for the 5.7L WK

Any advice of an experienced Hemi shop that tunes the Predator for this kind of mods?
__________________
Reply With Quote
  #10  
Old 04-19-2012, 01:55 PM
Escape's Avatar
Senior Member
 
Join Date: Jul 2009
Location: Michigan
Posts: 1,911
Thanks: 0
Thanked 26 Times in 25 Posts
Rep Power: 113248
Escape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond repute
Re: Boosting Options for the 5.7L WK

Quote:
Originally Posted by Massster View Post
Thanks for your answer Escape. Do you think that the proper tuning can be achieved with a Predator?
You already have a Predator correct and you have already used it on your Jeep?

If yes then it will work just fine.

For boost you will need to retard timing, add more fuel and adjust for the larger injectors and 2 bar map among other things.

I do not know of anyone in Lima, Peru.

I would contact JerseyBoy if he cannot be reached contact Johan from DiabloSport.
__________________
[SIGPIC][/SIGPIC]
Forged, Stroked, Blown, Bottle Fed & More
Reply With Quote
  #11  
Old 04-19-2012, 02:50 PM
Massster's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Sep 2010
Location: Lima, Peru
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1496
Massster is on a distinguished road
Send a message via MSN to Massster
Re: Boosting Options for the 5.7L WK

Yes, I already have the predator and Im running the pre loaded 91 oct setting. Thanks for your help, I'll try to contact JerseyBoy or Johan.
__________________
Reply With Quote
  #12  
Old 04-19-2012, 10:04 PM
remmy's Avatar
Boopity boop sha boop!
My Jeep: 2005 5.7L WK
 
Join Date: May 2010
Location: Fort Walton Beach, FL
Posts: 455
Thanks: 1
Thanked 3 Times in 3 Posts
Rep Power: 2064
remmy is on a distinguished road
Quote:
Originally Posted by Escape View Post
At 8 psi you will be fine.

It's not the boost that's the killer its the tuning. You must have the proper tuning.
THIS. I used an Apexi Power FC full ecu replacement to get the best tune I could. Friend of mine is wicked good at tuning. After warm up the Si would be at a 14.7 A/F. Not bad for a 4 banger with an 18g turbo and 20 pounds of boost
__________________

__________________
'05 HEMI WK
Custom Long Tube Headers
Airaid Shorty Intake
Custom Exhaust
Dyno Tuned on mi-grade pump gas:
Baseline: 241whp
Final: 271whp

My Audio Build
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
HID options fibs Interior/Exterior/Visual 17 04-05-2012 11:57 AM
Tire options, possibly tire and wheel options MrWow Suspension/Driveline/Brakes/Wheels/Tires 1 11-15-2011 02:58 PM
More on weight.....and options.... P-Dawger Grand Cherokee SRT - WK2 12 06-16-2011 10:25 PM
possible lift options? kyfredrickson Off Road Modifications 2 01-27-2011 11:13 AM
WK 3.7L Performance Options ckrawler Performance Modifications 12 12-09-2010 06:20 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 12:51 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community