more hp, easily? - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 12-13-2004
Member
Thread Starter
 
Join Date: Nov 2004
Location: Danville, VA
Posts: 2,664
more hp, easily?

hey all, got a question...

on our engines, is it possible to gain any power gains from just simple little things? i've already dont the airbox mod, and thas cool and all, but is there anything ike with the timing, or the pulley's and belts....

i've talked to some friends with honda civics and they said they can gain about 50hp from just a set of pulleys.....

is there anything like that for us? besides a whipple? haha
Reply With Quote
  #2  
Old 12-13-2004
LILBLUE04FX4L2's Avatar
Member
 
Join Date: Jun 2004
Location: Exit 105 New Jersey
Posts: 2,409
Gaining 50 HP from pullies - I think not
More HP is gained by pushing more fuel and air through the engine.
Anything you do to eliminate restrictions or force more of those items into your engine will increase HP.
Changing pullies usually stops power from being robbed and does little to increase power.
A pulley change will make better use of the currently available power, but usually there is a trade off.
Less cooling, less amperage, something has to be given back to trade for the power.

Changes to your intake, exhaust, plus engine and fuel management systems are the ways you get more power out of these 'truck' engines.
Reply With Quote
  #3  
Old 12-13-2004
V8 Level II's Avatar
RF Veteran
iTrader: (4)
 
Join Date: Nov 2004
Location: Michigan
Posts: 7,833
What Neil said. Also, there currently is neither a Whipple nor an underdrive pulley available for the 4.0L. There may soon be an improvement in hipo parts availability because the Mustang has the 4.0L for 2005.
Reply With Quote
  #4  
Old 12-13-2004
Member
Thread Starter
 
Join Date: Nov 2004
Location: Danville, VA
Posts: 2,664
true that...i can only hope....my 4.0 has some get-up-and-go, but just like everyone else i'd like some more...i was just curious
Reply With Quote
  #5  
Old 12-13-2004
Member
 
Join Date: Jun 2004
Location: Somewhere, XYZ
Posts: 4,351
Now when performance types talk of changing 'a pulley', which pulley are they refering to? Is it swapping out a belt driven fan for an electronic one? Or is it a taller pulley for driving a supercharger?!
Reply With Quote
  #6  
Old 12-13-2004
n3elz's Avatar
RF Veteran
 
Join Date: Jun 2004
Location: Kennett Square, PA
Posts: 10,620
Usually, it refers to changing the crank pulley for a smaller diameter unit (requiring generally a slightly shorter belt). It decreases the parsitic HP loss of the belt driven accessories. Usually called an "underdrive pulley".
Reply With Quote
  #7  
Old 12-13-2004
Level 2's Avatar
Member
 
Join Date: Nov 2004
Location: Higginsville, MO
Posts: 51
Maybe they were talking about adjustable cam gears or something...there is some power to be made there if you can re index your cams for advance or retard of cam timing but the Vtec motors already have variable cam timing so who knows.
Reply With Quote
  #8  
Old 12-13-2004
Member
Thread Starter
 
Join Date: Nov 2004
Location: Danville, VA
Posts: 2,664
and it's also a PITA to find a belt to fit it since its smaller...unless it comes with kit w/ the pulleys, and then again u're screwed when u need to replace the belt
Reply With Quote
  #9  
Old 12-13-2004
Member
 
Join Date: May 2004
Location: McKinney, TX
Posts: 2,123
Pully's suck for those in Texas (need A/C & water pump) and have aftermarket stereo's (Alternator). What little could be gained by the power steering pump, isn't worth the bother... :)
Reply With Quote
  #10  
Old 12-13-2004
Member
 
Join Date: Jun 2004
Location: Somewhere, XYZ
Posts: 4,351
Thanks.. 'bout what I figured..
Reply With Quote
  #11  
Old 12-13-2004
Member
 
Join Date: Aug 2004
Location: Wesley Chapel, FL
Posts: 1,072
Don't know if this applies to our trucks since I've never removed that particular pulley, but this was a big issue with the Mitsubishi Eclipse forum I used to frequent. Seems that the Mitsubishi crank pully also was a vibration dampner, but the aftermarket smaller one didn't have the same ability to absorb engine vibrations. The crank started to rock, and the bearings got eaten in quite a few engines. The underdrive maker stated that the product was for "offroad use" (ie drag racking), so no warrenty was implied. Just something to watch out for when chasing cheap hp.
Reply With Quote
  #12  
Old 01-29-2005
loneFX4's Avatar
Member
 
Join Date: Jan 2005
Location: Summerville,SC
Posts: 955
underdrive pulleys are a "relatively" cheap upgrade to gain a few horses. you can also change out your intake (new plenum, throttle body, MAF with air calibration) thats wut i wanna do if i get enough money. you can also get a tornado. hear tell they work really nice.
Reply With Quote
  #13  
Old 01-29-2005
Strider0O0's Avatar
Member
 
Join Date: Jul 2004
Location: Philadelphia, PA
Posts: 3,588
lol.. the tornado's dont do ****, they're a waste of money
Reply With Quote
  #14  
Old 01-31-2005
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
Quote:
Originally Posted by Strider0O0
lol.. the tornado's dont do ****, they're a waste of money
Someone at work here dynoed one, it lost 2 horsepower with it on.
Reply With Quote
  #15  
Old 01-31-2005
checkmyvitals's Avatar
Member
 
Join Date: Jan 2005
Location: London, Canada
Posts: 70
Quote:
Originally Posted by Strider0O0
lol.. the tornado's dont do ****, they're a waste of money
lol. they don't have their own power source do they? just spin due to the air passing through them?
i don't know how people actually think they work, when you picture it... it's just an air block that spins. oooohhh, pretty
Reply With Quote
  #16  
Old 01-31-2005
sawred's Avatar
Member
 
Join Date: Jan 2005
Location: San Antonio, TX
Posts: 580
Not saying they work, but what they are supposed to do is cause the air to swirl...they dont spin themselves, they are stator blades or stationary blades. The air passing by will spin causing vorticies...these vorticies should help the air and fuel mix, but I dont think they work well with the engine design, just like throttle body spacers.
Reply With Quote
  #17  
Old 01-31-2005
Member
 
Join Date: Nov 2004
Location:
Posts: 3,115
I put a pulley set on my 2.0L Focus and I never had it dyno but I could most deffently feel more power. NO WAY was it was near 50 horses more like 10 maybe. The focus pulley set consistant of a smaller crank pulley, altinator pulley and waterpump pulley. The kit advertised all 3 pulleys were the same % wises smaller thus keeping your amps and cooling the same. After my battery was getting old my lights would flicker at idle but for all I know they might have done that anyway. Since I got a new battery it has stopped doing that.

I really like pulleys I think they are cheep power and as soon as a kit is availible I will put a set on my truck.

Note : You could get 50 horsepower of more with a supercharger pulley change maybe thats what the guy with the honda was talking about. Changing the pulleys on a supercharger will increase boost. Its like a gearing change. If you change the pulley on the crank (that feeds the supercharger) if you make it bigger it will spin the blower faster making more boost, same goes if you make the pulley on the blower smaller.
Reply With Quote
  #18  
Old 01-31-2005
Member
Thread Starter
 
Join Date: Nov 2004
Location: Danville, VA
Posts: 2,664
well...after hearing more bs that he was talkin about with his civ, i believe that he is a habitual liar.....haha....

i was just curious as to see if there wasnt any tinkering we could do...i remember working on my C10 and i cold just adjust the jets on the carb for power/economy etc...
Reply With Quote
  #19  
Old 01-31-2005
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
Quote:
Originally Posted by Ranger1
The kit advertised all 3 pulleys were the same % wises smaller thus keeping your amps and cooling the same.
If that was true there would be no benefit to installing them would there? They would present the same load on the engine that way.
Reply With Quote
  #20  
Old 01-31-2005
Member
Thread Starter
 
Join Date: Nov 2004
Location: Danville, VA
Posts: 2,664
pulleys basically slow down everything but the engine....the accessories rob u of power...but i'd rather have my headlights and power steering than the extra 15 hp...
Reply With Quote
  #21  
Old 02-01-2005
Member
 
Join Date: Nov 2004
Location:
Posts: 3,115
Quote:
Originally Posted by Dave and Julie
If that was true there would be no benefit to installing them would there? They would present the same load on the engine that way.
They were also made out of light weight aluminum alloy conpared to a heavy steel which would reduce the drag on the engine. I don't know, I can't really explain how they work exactly but I took a chance and received benifits all around from MPG to better power transfer and I have never noticed any drawbacks. I have never lost power steering feel, nor any voltage problems(except the lights flickering at idle but the battery was on its last leg at the time so it might have done that anyway with the stock pulleys), nor have I saw any cooling problems even in 100+ degree heat we had a few years ago.
Reply With Quote
  #22  
Old 02-02-2005
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
The were a larger size than stock to slow the components down, that is how they work. I knew a guy with an svt focus that noticed a difference with his too.
Reply With Quote
  #23  
Old 08-14-2006
Level 2's Avatar
Member
 
Join Date: Nov 2004
Location: Higginsville, MO
Posts: 51
You could always strap on a Explorer Express supercharger but thats not cheap hp....$4,000 for the kit then you have to install it or pay someone to install it but its supposed to give an extra 76hp at the wheels.
Reply With Quote
  #24  
Old 08-14-2006
jtslmn720's Avatar
RF Veteran
iTrader: (1)
 
Join Date: Oct 2004
Location: Kent State, Kent Ohio
Posts: 7,367
look at the date man, this is almost 2 years old....
Reply With Quote
  #25  
Old 08-14-2006
Member
 
Join Date: Jun 2004
Location: PUEBLO, CO
Posts: 3,753
lmfao...
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
How do you post pictures easily? WildcatRange Ranger-Forums Office 3 07-24-2012 09:54 PM
Can I easily swap boxes? AutumnRanger Exterior Semi-Tech 1 03-10-2012 03:29 PM
Easily repairable? Ceezer Exterior Semi-Tech 8 02-04-2011 04:55 PM
i was just thinking, someone could easily steal our tail lights Tys 4x4 FTW General Ford Ranger Discussion 67 06-21-2009 08:37 PM
How come I get stuck so easily? cereal83 General Ford Ranger Discussion 53 03-16-2008 11:01 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 10:29 AM.


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.