Would anyone happen to know?

[Whatisthis?]

Any form of cheap modifications that a pretty vehicular dumb person can do? I'm working on trying to squeeze a few more horses out of my 4.0 v6 any help is very very much appreciated. Thank you

 

[zoso1030]

Is it the ohv or sohc?


you can check here I posted some ways and a guy explains how the work on the second page of it
http://www.explorerforum.com/forums/showthread.php?t=299211

 

[Whatisthis?]

Terribly sorry, OHV haha.

 

[Hartman]

Intake, exhaust, chip. However these items will not net you tons of HP, but will improve sound, throttle response, and improve your overall driving experience

 

[silentchris]

nitrous a dry kit is a pretty simple install

 

[imp]

gotta love supercharging.......... imp

 

[Hartman]

Honestly though OHV performance moding is a waste of time.

 

[Whatisthis?]

It may be, hence why I'm just working with what I have. If I had a 5.0 v8, it would be a diffrent story, but sadly I do not =[. Thank you all for giving me advice on this, how would you do a dry nitrous install? Also, what kind of chip would you install on it? How much would that be?

 

[XLT]

A lot of people are very fond of Henson Performance for your tuning needs. I think they run about $350 on the cheap end but not sure. You could also look at an electric fan to free up some extra ponies. You could also try the throttle cable mod as well as the throttle body half shaft mod. Both should come up in a search and both are free!

 

[imp]

Regarding electric fans, I personally doubt (my own thoughts here, before anyone starts hopping up and down mad!) that they "free-up" horsepower.

Here's why I say that: 1: The drive belt "eats" HP through friction, just by worming it constantly around all those bends. But, you can't eliminate that part of lost HP- you can't "ditch" the belt, so stuck with that loss.

2. Factory clutch-type fan essentially "free-wheels" until air flow temp. through radiator calls for fan to move air, requiring HP drag on engine.

3. Electric fan essentially "free-wheels" until cooling effort is needed, at which time it turns "on"-- when that happens, the energy needed to drive it comes from the alternator; that increases drag via the belt, which eats additional gasoline whenever the fan is turned "on". It seems safe to figger the electric fan moves a similar amount of air through the radiator, thereby eating the same amount of HP as the clutch fan when it is "driving".

4. "Flex-Fans"- Don't see them much anymore, were sold as a "gimmick", they drove a maximum amount of air for a given fan speed, which at it's upper limit "flattened" the blades' pitch down, giving the illusion of LESS fan action--they most likely used more HP than either clutch or electric scheme.

So, I contend the electric fan requires about the same HP (when running) as the clutch fan requires (when being driven). If I'm "all wet" here, please provide some thoughts based on the Physics involved, not some advertising hokum.......imp

 

[drothgeb]

Regarding electric fans, I personally doubt (my own thoughts here, before anyone starts hopping up and down mad!) that they "free-up" horsepower.

Here's why I say that: 1: The drive belt "eats" HP through friction, just by worming it constantly around all those bends. But, you can't eliminate that part of lost HP- you can't "ditch" the belt, so stuck with that loss.

2. Factory clutch-type fan essentially "free-wheels" until air flow temp. through radiator calls for fan to move air, requiring HP drag on engine.

3. Electric fan essentially "free-wheels" until cooling effort is needed, at which time it turns "on"-- when that happens, the energy needed to drive it comes from the alternator; that increases drag via the belt, which eats additional gasoline whenever the fan is turned "on". It seems safe to figger the electric fan moves a similar amount of air through the radiator, thereby eating the same amount of HP as the clutch fan when it is "driving".

4. "Flex-Fans"- Don't see them much anymore, were sold as a "gimmick", they drove a maximum amount of air for a given fan speed, which at it's upper limit "flattened" the blades' pitch down, giving the illusion of LESS fan action--they most likely used more HP than either clutch or electric scheme.

So, I contend the electric fan requires about the same HP (when running) as the clutch fan requires (when being driven). If I'm "all wet" here, please provide some thoughts based on the Physics involved, not some advertising hokum.......imp

Aldive's mileage thread has tested this and it does provide an increase in hp and mpg, not terribly high but with everything else it does have a cumulative effect.

 

[imp]

Aldive's mileage thread has tested this and it does provide an increase in hp and mpg, not terribly high but with everything else it does have a cumulative effect.

Thanks for that! Often wondered if real study was applied to the question. I wonder what the percentage of difference works out at.......imp

 

[drothgeb]

hmm cant remember the exact figures but he was awesome at doing both extensive road tests and dynos after each and every mod

 

[Maniak]

2. Factory clutch-type fan essentially "free-wheels" until air flow temp. through radiator calls for fan to move air, requiring HP drag on engine.

3. Electric fan essentially "free-wheels" until cooling effort is needed, at which time it turns "on"-- when that happens, the energy needed to drive it comes from the alternator; that increases drag via the belt, which eats additional gasoline whenever the fan is turned "on". It seems safe to figger the electric fan moves a similar amount of air through the radiator, thereby eating the same amount of HP as the clutch fan when it is "driving".
<snop>
So, I contend the electric fan requires about the same HP (when running) as the clutch fan requires (when being driven). If I'm "all wet" here, please provide some thoughts based on the Physics involved, not some advertising hokum.......imp

Fan clutches do not freewheel. They do get close though. for example, the hayden sever duty fan clutch runs at 30% shaft speed even when disengaged. I don't know what percentage an OEM one spins, but I know it still spins and is taking power.

An electric fan takes 0 load when its not running.

An electric fan when running does take power from the engine via the alternator BUT it will only run when there isn't enough air flow through the radiator. For example.. On the last wheeling run the electric fan on the tow rig never turned on while driving down the freeway. It only turned on once I got off the freeway and pulled into the gas stations. That means I was getting better mileage the entire time on the freeway.

so, when your moving you get better mileage, in town, maybe not..

~Mark

 

[storlied]

Honestly though OHV performance moding is a waste of time.

You do know our 302's are an OHV setup right? I've got a handful of mods on mine and it's a good difference in performance. I don't see the things I've done as a waste at all.

Mac CAI
Mac 3" Catback
Transgo Shift kit
90 Octane Performance tune

Moves these 33's just fine.

If you're talking about Just the ohv v6, maybe... maybe not. With enough money and experience plenty of things can be made into beasts.