Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

Need a high perormance camshaft

Thread Tools
 
Search this Thread
 
Old 03-12-2013, 11:23 PM
  #1  
Junior Member
Thread Starter
 
pajuis's Avatar
 
Join Date: Oct 2012
Location: SoCal
Posts: 70
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
Default Need a high perormance camshaft

Hello there everyone. I picked up this ported and polished intake manifold for my 97 Cherokee 4x4 automatic. It has a 5.3L Vortec throttle body on it. Vehicle is getting headers, flowmaster, reprogrammed computer, and an aftermarket camshaft. It sports 245/75R16 with stock 3.55 gears. I will only use it at the dunes, IT IS NOT A DAILY DRIVER! I have everything except the cam. Please advise.

Need a high perormance camshaft-image-3635314462.jpg
Old 03-13-2013, 05:46 AM
  #2  
CF Veteran
 
CobraMarty's Avatar
 
Join Date: Dec 2011
Location: PA KOTUFU!
Posts: 1,777
Likes: 0
Received 16 Likes on 15 Posts
Year: 1998
Engine: 4.0L 162,000
Default

If it is an auto trans, it will shift at 4800-4900 rpm and using any cam over stock will just raise the power curve to above your shift point and you will never use it. Keep your stock cam and use Yella Terra 1.7 ratio Roller Rockers.
Old 03-13-2013, 05:52 AM
  #3  
CF Veteran
 
99 Purple XJ's Avatar
 
Join Date: Oct 2010
Location: Long Island N.Y.
Posts: 1,889
Likes: 0
Received 2 Likes on 2 Posts
Year: 1999
Model: Cherokee
Engine: I6 4.0
Default

Im building almost the same setup but mines i already have the stage 3 comp cam lifters rockers valve springs my 99 manifold is port and polished in starting my tear down friday and could you give me more info on the vortec throttle body?
Old 03-13-2013, 08:12 AM
  #4  
Junior Member
Thread Starter
 
pajuis's Avatar
 
Join Date: Oct 2012
Location: SoCal
Posts: 70
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
Default

Originally Posted by 99 Purple XJ
Im building almost the same setup but mines i already have the stage 3 comp cam lifters rockers valve springs my 99 manifold is port and polished in starting my tear down friday and could you give me more info on the vortec throttle body?
I bought it off a guy that way, he had it on his daily driver and ended up going to a smaller one and smaller injectors because of the fuel. I could take better pictures though. Are you running the stock head?
Old 03-13-2013, 08:13 AM
  #5  
Junior Member
Thread Starter
 
pajuis's Avatar
 
Join Date: Oct 2012
Location: SoCal
Posts: 70
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
Default

Originally Posted by CobraMarty
If it is an auto trans, it will shift at 4800-4900 rpm and using any cam over stock will just raise the power curve to above your shift point and you will never use it. Keep your stock cam and use Yella Terra 1.7 ratio Roller Rockers.
Even with a modified computer?
Old 03-13-2013, 08:43 AM
  #6  
CF Veteran
 
CobraMarty's Avatar
 
Join Date: Dec 2011
Location: PA KOTUFU!
Posts: 1,777
Likes: 0
Received 16 Likes on 15 Posts
Year: 1998
Engine: 4.0L 162,000
Default

The TCU controls the shift points and is not programmable. ECU has no control over shift points.
Old 03-13-2013, 08:54 AM
  #7  
CF Veteran
 
99 Purple XJ's Avatar
 
Join Date: Oct 2010
Location: Long Island N.Y.
Posts: 1,889
Likes: 0
Received 2 Likes on 2 Posts
Year: 1999
Model: Cherokee
Engine: I6 4.0
Default

Yes stock head just ported it i also have a pace header going on as well as ford crown vic 4.6L injectors theyre 19 injectors but theyre 4 hole ones
Old 03-13-2013, 06:44 PM
  #8  
Junior Member
Thread Starter
 
pajuis's Avatar
 
Join Date: Oct 2012
Location: SoCal
Posts: 70
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
Default

Originally Posted by 99 Purple XJ
Yes stock head just ported it i also have a pace header going on as well as ford crown vic 4.6L injectors theyre 19 injectors but theyre 4 hole ones
Do the injectors fit right in?
Old 03-13-2013, 08:13 PM
  #9  
CF Veteran
 
99 Purple XJ's Avatar
 
Join Date: Oct 2010
Location: Long Island N.Y.
Posts: 1,889
Likes: 0
Received 2 Likes on 2 Posts
Year: 1999
Model: Cherokee
Engine: I6 4.0
Default

Injectors fit perfectly
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sluger17
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
07-08-2023 07:08 AM
libengan
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
11-06-2015 09:16 AM
studmuffin
Cherokee Chat
8
10-05-2015 01:54 PM
1ATony
Vendor Showcase
0
09-25-2015 10:58 AM
1ATony
Vendor Showcase
0
09-25-2015 08:48 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Need a high perormance camshaft



All times are GMT -5. The time now is 05:15 AM.