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

performance/gas milage

  #1  
Old 08-10-2012, 01:43 AM
Beginning Member
Thread Starter
Join Date: Aug 2012
Posts: 11
trixspix is on a distinguished road
Default performance/gas milage

I have a 2001 checy blazer W/ the 4.3 v6 eng in it and I am looking for some improvments that I can make too Improve the performance some as well as improve the gas milege I have heard a few tips but also heard that they are a waste of money so I am trying to get more input.

1) cold air intake system
2) changing out my stock clutch cooling fan to a dual efan setup
3) taking some plate piece off of my butterfly in the TB

any help woud be appreceated keep in mind I dont just have money to burn and also I do not use this vechicle for hp activites such as racing, four wheeling, mudding and things like that
 

Last edited by trixspix; 08-10-2012 at 01:52 AM.
  #2  
Old 08-10-2012, 02:02 AM
Super Member
Join Date: Mar 2012
Location: Iowa
Posts: 1,024
50lb_cat will become famous soon enough
Default

The best performance mod you can do is get your pcm tuned. But do some searching, it will keep you busy for hours. Don't waste your time with the butterfly mod, IMO.
 
  #3  
Old 08-10-2012, 08:16 AM
New Member
Join Date: Aug 2012
Posts: 2
dynowhite is on a distinguished road
Default

i have a 99 chevy blazer 4x4, before i did any mods to mine i was getting 190-200 a tank. i now get about 245-250. all i have changed is k&n cold air intake, dynomax exhaust, gfchip. i think the exhaust made the biggest diff. the blazers come stock with to big of a muffler and restricts alot of power. thats all i have done so for to improve my mpg. hope this info can help you.
 
  #4  
Old 08-10-2012, 08:53 AM
Beginning Member
Join Date: Feb 2012
Location: Glassboro,NJ
Posts: 44
04SSBlazer is on a distinguished road
Default

whats the gf chip?
 
  #5  
Old 08-10-2012, 09:32 AM
Beginning Member
Thread Starter
Join Date: Aug 2012
Posts: 11
trixspix is on a distinguished road
Default

next part of this is when I first start the blazer and start driving even if it is the first time for the day as I accelerate my fan makes this loud noise that sounds like a tornado up till the first shift point and then it goes away I also hear the same thing after been sitting and idling for a bit an the temp is up around 210 is this normal or is it the fan clutch going out
 
  #6  
Old 08-12-2012, 11:30 PM
Beginning Member
Join Date: Feb 2012
Location: Lenoir
Posts: 19
97blazzer is on a distinguished road
Default your question for noise

the old clutch fans engaged when the engine was cold and then loosen up or well disengaged when gets up too operation temp, nothing too worry with u can get a hold of fan with gloves on of course with engine off and try too go side to side too make sure no play if u think its going out and check for play.. me personally dont like clutch fans id rather find a ford taurus 3.8 electric fan and wire it in they roughly do over 2100cfm or so not bad for stocker and price for new one that flows good cfm.. the weird thing is ive never heard the clutchfans engage with temps at 210 i could be wrong but that dont seem right there bud
 
  #7  
Old 08-12-2012, 11:43 PM
Beginning Member
Join Date: Feb 2012
Location: Lenoir
Posts: 19
97blazzer is on a distinguished road
Talking well second thought

you said the fan engages when in traffic when typically when one gets hotter thats normal becouse it brings in more air too cool down engine becouse of the bimetallic strip that our engine fans use instead of the newer electronically controlled kinda like a thermostat, so if its constantly doing alltime id make sure its not trying too overheat, if it just does it in traffic id get u a 180deg thermostat and u shouldnt hear it engage no more in traffic, most stock are 195 which is great for winter heat purposes but summer it gets hot quickly but yet with 180 u still have good heat if needed but this is my epinion.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
zeb_ford
2nd Gen S-series (1995-2005) Tech
3
01-25-2008 04:12 PM
infamous
Engine & Internal
3
03-30-2007 05:50 AM
frankmackie
2nd Gen S-series (1995-2005) Tech
15
03-14-2007 06:57 PM
tommyd
General Tech Help
10
10-25-2006 01:10 AM
magnum434
Engine & Internal
13
08-17-2006 01:44 AM


Thread Tools
Search this Thread
Quick Reply: performance/gas milage


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.