2.9L hp

[disciplerocks]

It was only bigger for 2 years, 86-87.

 

[IndianScout]

anyone have a link to this zip tie mod??

 

[Beanmachine7000]

If the size of the TB does not make a difference in hp, then why did they change the size in '88? More air = higher hp. I think I will need to go elsewhere to find the answer to my question. I am wasting my time here.

So, you came here and got the right answer, which is not the answer you wanted so you're going to go somewhere else that will give you the answer you want? A larger TB WILL NOT give you more horsepower UNLESS you modify the engine internally to the point that it can suck in more air than the original throttle body was designed for... Yes, people sell larger throttle bodies, heck I have one laying around for the engine going in my Camaro, not because it will give me more horsepower, but from the research I've done, with the cam I have, and the increase in stroke, the engine will pull in more air than the original throttle body was designed for so it IS a restriction... Therefore it will give me more horsepower... On a stock engine, no increase ever...

 

[Beanmachine7000]

anyone have a link to this zip tie mod??

http://www.therangerstation.com/Magazine/Summer06/throttlecablemod.htm

 

[94xlt4.0]

why cant anyone answer a simple question without getting their panties all in a bunch? if the original throttle body was a restriction then yes a larger throttle body will increase horsepower. if the throttle body already outflows the rest of the engine then no a larger one wont add horsepower it will just shift the power band so it feels different. so technically the butt dyno is right but technically it isnt at the same time

 

[gaz]

$ .25

"94xlt4.0",

Here is a general rule I have come to accept:

Anyone that knows anything can hurt or help, so chose wisely who you want to listen to. Each person can lead another down a different trail with different life experiences along the way, everyone is different and unique.

I wanted to know whether Sven Pruet knew anything about making power, so I did everything he recommended in the book he wrote about these small Ford 60 degree V-6 engines. The end result was a measurable improvement over the stock product. That being said, this stupid little 2.9l engine was, for the most part (bad original head design excluded) very well engineered! It will be dificult for anyone to improve on the design or performance of a new, stock Ford 2.9l, however, it has been done and for less than the cost of a new CRATE ENGINE.

The choices are yours. I piece mealed my first 2.9l over several years with good results using only bolt-ons. My second was a complete tear down and rebuild in accordance with Sven's book, resulting in measurable, obvious and easily demonstrated performance gains (power and mpg).

Everyone has 2 armpits, one belly button and a rectum; they could be addressed by any one of those components.

 

[CountryBoy704]

air does not = hp unless you add more fuel as well, otherwise you are just running too lean for your motor, on top of that your enginge pulls whatever amount of air it needs at whatever rpm and so forth, its not like you are forcing air in, a larger tb does not act like a turbo or something, the only way this works is if the smaller one was restricting airflow as others have stated, they normally do not for these engines but it is possible your old one had something wrong with it and that explains your power boost

 

[Mike Tonon]

why cant anyone answer a simple question without getting their panties all in a bunch? if the original throttle body was a restriction then yes a larger throttle body will increase horsepower. if the throttle body already outflows the rest of the engine then no a larger one wont add horsepower it will just shift the power band so it feels different. so technically the butt dyno is right but technically it isnt at the same time

It can't be right and wrong, it just depends on many factors.

Someone take their stock, good condition 88+ 2.9l with the smaller throttle body after it has warmed up to normal operating temperature to have it dyno tested. Then put a larger throttle body on it and dyno it. Post up the results. There should be a slight, SLIGHT improvement once the larger throttle body has more open area than the smaller one. And thats, like mentioned, if the engine from there onwards is capable of handling anymore air what so ever.

My 07 with the 4.0l engine has a throttle body closer in size to the smaller 2.9l throttle body. I wonder if my throttle body was almost twice the size it is, would it allow for more hp? If so, would I loose low end? I cut open my airbox and I seem to have more pep starting off.

 

[robertc1024]

psst. Is he gone? This thread was funny. Everybody answered his question. He just didn't like the answer y'all gave him.