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 02-22-2013, 10:32 PM
justin-overland's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Apr 2012
Location: finger lakes region
Posts: 110
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 60372
justin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond repute
Garage
big cam install help

hi. i wanna get a inertia motorsports srt max camshaft. its 218/223 duration.
i have a few questions.
-what push rods do i need? size? specs?
-what valve springs do i need? specs?
-do i need a tune? if so do i use an actual plug in tuner or could a shop modify my ecu?
-also could the tune be optimized for the cam / cai / and my massive 4in straight pipe?
__________________

__________________
Reply With Quote
  #2  
Old 02-24-2013, 07:30 PM
Senior Member
My Jeep: 2006 5.7L WK
 
Join Date: Dec 2009
Location: Home of the Mountain Blue Bird
Posts: 1,034
Thanks: 0
Thanked 23 Times in 21 Posts
Rep Power: 155036
jeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond repute
Re: big cam install help

What all are you changing, or have you changed?

Several of us have done the cam mod., and I would recommend you first check with the cam manufacturer as to what valvetrain components they recommend. Many of the use stock SRT pushrods and springs. I installed the FRI Engineering Sidewinder cam in both my Hemi's and used all SRT exhaust springs and SRT pushrods. If you're going to pull or replace the heads, it's a no brainer on changing the springs, but if you leave the heads on (like I did on both my Hemi's) you'll need (among other things) a Crane Cams Hemi valve spring compressor (modified) to change them. Since I had the springs off, I also replaced the valve seals, even though they didn't really need it.

Everyone says you MUST have a custom tune done or it won't run. Because of this comment, I tried mine with the stock tune, and it ran fine. Didn't get the maximum power out of it, but it ran and drove down the street fine. Ultimately, depending on how radical your cam is (mine is a relatively mild torquer, MDS compatible cam) you should probably get a Diablosport tuner and a CMR tune specific to your application. I still use the canned tunes, and I am happy with it. I could probably gain more with a CMR though. I am currently running the Superchips 91 tune, and have reset the transmission shift schedules/torque management to suit my needs, using their Advanced TRansmission Tuning Application. IMO, it's worth its weight in gold.

What kind of exhaust headers are you running? No matter what you're running, the 4 in. system may be too big, and cause more torque loss (than the cam will) than a smaller system would. In any case, have fun. If you need any help, I for one will be glad to give you some pointers/hints.
__________________

__________________
05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.
Reply With Quote
  #3  
Old 02-25-2013, 12:00 AM
justin-overland's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Apr 2012
Location: finger lakes region
Posts: 110
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 60372
justin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond repute
Garage
Re: big cam install help

ok thanks for the info. im only changing the cam, rods and springs. the exhaust is %100 custom. its oem from engine to cats then custom y pipe to 4in straight pipe the rest of the way. would it hurt the engine to run it without a tune?
__________________
Reply With Quote
  #4  
Old 02-25-2013, 03:52 PM
Senior Member
My Jeep: 2006 5.7L WK
 
Join Date: Dec 2009
Location: Home of the Mountain Blue Bird
Posts: 1,034
Thanks: 0
Thanked 23 Times in 21 Posts
Rep Power: 155036
jeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond repute
Re: big cam install help

If you're running the stock 5.7 exhaust logs, you're not going to get anywhere near the full benefit out of the cam. If you haven't seen the thread I did on the stock logs vs. the stock LX logs, here it is:
A better exhaust system for the 5.7 WK?? Better yet would be custom headers like I did, or get the stock SRT manifolds, which are basically headers. As a comparison my headers are individual tube and have 3 in. collectors, the stock LX's have 2 5/8 in. and the stock WK's have 1 7/8 in. collectors. With either of the logs, you still have quite a bit more restriction than with an individual tube header. There are plenty of writeups about this.

What are the specs. on your cam and does it still retain the MDS? If it is not "MDS friendly", you'll have to pull the heads and change the MDS lifters. If you're just going to change the springs/pushrods with the heads on, as I said, you'll need the Crane Cams valve spring tool. It won't hurt the engine to run without a tune, but if that's your plan, you might as well leave it stock, because you won't realize much gain at all. Mine with the "canned tunes" is quite a bit better but probably not as good as it could be, and if you use a Diablosport tuner you can adjust WOT fuel and timing, which is a plus if you're not planning to get a CMR tune.
__________________
05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.
Reply With Quote
  #5  
Old 02-25-2013, 11:04 PM
justin-overland's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Apr 2012
Location: finger lakes region
Posts: 110
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 60372
justin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond repute
Garage
Re: big cam install help

its the srt max cam by inertia motor sports. duration is 218/223. its says msd is possible with proper tuning. im definitely going to get it tuned just was wondering. also whats the diff from the Diablosport and CMR tune? this is my biggest problem i dont under stand all the tuning stuff.
__________________
Reply With Quote
  #6  
Old 02-27-2013, 07:12 PM
Senior Member
My Jeep: 2006 5.7L WK
 
Join Date: Dec 2009
Location: Home of the Mountain Blue Bird
Posts: 1,034
Thanks: 0
Thanked 23 Times in 21 Posts
Rep Power: 155036
jeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond repute
Re: big cam install help

The Chip Master Revolution (CMR) tune is a product of Diablosport. It is a custom tune that is tailored to your specific vehicle, after you have done some data logging (with the DS tuner) so they can make the proper adjustments. You may want to get with the Inertia Motor Sports folks and see what exactly needs to be done to get the results you're looking for.
__________________
05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.
Reply With Quote
  #7  
Old 02-27-2013, 09:26 PM
justin-overland's Avatar
Member
My Jeep: 2006 5.7L WK
 
Join Date: Apr 2012
Location: finger lakes region
Posts: 110
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 60372
justin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond reputejustin-overland has a reputation beyond repute
Garage
Re: big cam install help

ok thanks for all the help man
__________________

__________________
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
cam install chefalan23 Performance Modifications 22 09-22-2014 03:42 PM
Cam and the first ever Black Ops Heads install on Sept. 29th....Marysville YungSRT Grand Cherokee SRT8 - WK 20 10-05-2012 06:37 AM
Cam Install Day 2 555ctsv Engine Performance/Intake/Exhaust 34 09-21-2012 09:51 PM
Cam advice....Install help! uglycar Engine Performance/Intake/Exhaust 19 05-19-2012 10:43 AM
Big Red, not so big anymore... bill38jeep Members Rides 46 10-21-2009 09:02 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 08:55 PM.


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

JeepGarage.org is in no way associated with or endorsed by Chrysler Group LLC.