Performance & Brainstorming Want to free up some HP? Looking at headers? Ask your performance related questions here!

1st mods on a 2001 GMC Jimmy

  #1  
Old 05-21-2012, 10:08 PM
BigNeal's Avatar
Beginning Member
Thread Starter
Join Date: May 2012
Location: Carolinas
Posts: 19
BigNeal is on a distinguished road
Default 1st mods on a 2001 GMC Jimmy

Hey y'all. I fixed the radiator on the Jimmy and now moving towards making it move a bit better. I swapped out the oem air filter and put in an amsoil absolute efficiency air filter since I am a dealer and decided to partake in my own supply lol. The response was surprisingly good. A bit of improvement in response and air flow. Amsoil has often taken on k & n and the like for having filters that allow more particles in the engine. This of course is all open to debate, but for me it did really well and I didnt have to compromise on the air box being removed. I also changed the pcv valve, t stat and radiator cap after the radiator swap. All feels good. Then for a little growl, I removed the oem muffler and put a flowmaster 40 series muffler on their and she sounds nice and deep, same stock piping except with a tip. Any other ideas to make the 4.3 Vortec move a little more? I swear it feels like I have my pedal to the floor just trying to make it move quicker lol.
 
  #2  
Old 05-21-2012, 10:23 PM
Super Member
Join Date: Mar 2012
Location: Iowa
Posts: 1,024
50lb_cat will become famous soon enough
Default

The best bang for your buck mod is to get your pcm tuned. I used blackbear performance, it was night and day. There is also wheatley,nelson.wait4me,pcm4less. I choose BB, all the full size gm guys swear by him and it was well worth the money.
 
  #3  
Old 05-22-2012, 08:06 AM
BigNeal's Avatar
Beginning Member
Thread Starter
Join Date: May 2012
Location: Carolinas
Posts: 19
BigNeal is on a distinguished road
Default

Interesting, whats their turn around time? Do you have a contact number? Also, do they make underdrives for the Jimmy?
 
  #4  
Old 05-22-2012, 11:43 AM
Super Member
Join Date: Mar 2012
Location: Iowa
Posts: 1,024
50lb_cat will become famous soon enough
Default

Check out there website, blackbearperformance.com. I would suggest making sure that you don't have any underlining issues that cause a lack of power. I did a complete tuneup, cap, rotor,wires, plugs. I also cleaned the maf, egr and throttle body and checked my o2 sensors to make sure they aren't getting lazy. After knowing that everything was as good as it can be I ordered the tune and it really woke up the 4.3.

Justin is pretty busy but he still has fast turn over times.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bdude273
Lighting & Electrical
0
11-22-2013 08:30 PM
Jimmy_Blazer
Performance & Brainstorming
1
01-12-2013 08:48 PM
londonmazda
General Chat
0
10-19-2010 02:15 AM
Spectreblazer
The Lounge
5
03-20-2010 03:36 PM
fishinhunter12391
Steering, Suspension & Drivetrain
6
06-20-2008 12:25 PM


Thread Tools
Search this Thread
Quick Reply: 1st mods on a 2001 GMC Jimmy


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.