YAMBIG said:
I DEFFINATELY have the OHV. Sorry that was supposed to be in my last response. I went to Summit and they only show the BBK TB. It is $200-. I have found u/d pullys for a 3.0 but never a 4.0. I just did'nt know if someone knows where to get a BBK for cheaper or a great price on a MAF sensor.
The BBK is the only TB I am aware of for the 4.0 OHV. It was originally produced for use with their now discontinued BBK Instacharger. Summit had the best price when I bought mine, However I chose to support a site sponsor and ordered through explorerexpress.com.
YAMBIG said:
Also is there a MAF sensor I should stay away from because of stock injectors or calibration issues? I have tried all day yesterday to search for this info, but I'm getting a little info and more questions!!! Sorry for being a p.i.t.a. I just dont want to drop the cash on electrical products and have them not work!
Honestly a MAF for your application is not worth the money. Late Model 4.0's came with a 70 mm MAF from the factory. You can upgrade if you like, but I would stick with the ford unit which will cover your air needs short of adding a chunk of boost. There are several units which would work if you really want to spend the couple hundred though. I DO NOT recommend Pro-M due to difficulty tuning to their electronics. Granatelli makes a unit, and I believe C&L's unit from the mustang can be adapted, but that may be only SOHC.
YAMBIG said:
I found the pullys for the 4.0. They are from "Underdog". Now another question! I have an 800 watt amp for my subs, will the under drive for the alt. still suply the amp or should I go with the over drive and give up that minimal hp? Every little bit counts!!
For the Underdrive pulleys the companies that I have heard of are Underdog and ASP.
As to your charging issue......Maybe a problem maybe not......seems to be quite variable. Aldive is running a high amp alternator and Optima Battery. He has had no issues, nor any lights diming at stoplights, charge rate dropping when at idle, etc.....
However on my Mustang I have all of those problems. Though honestly I have done nothing to upgrade my charging system yet. All in all I personally do not recommend pulleys. They did give me a bit of power on the stang, but IMO not enough to justify the problems or the money that needs to be spent to correct them......Just my .02 and I know there are others on here that disagree with that opinion.
One thing that would free up some pony for you and I do recommend is upgrading to an electric fan.....
One thing to put into perspective that this site often neglects to add....None of these are true power mods. They are all supporting modifications that are done to accomodate larger upgrades such as Heads, Cam, Intake Manifold, Power adders, or etc. True you will see some minor gains from the addition of these parts, but all in all Ford has calibrated the engine accessories to work with what you have. Yea I know I bolted all these goodies onto my X also, but I planned on having the heads cleaned up and adding the comp cam back then. Now I say screw it I want a 5.0 in there. Do Not expect to gain more than 20-30 HP from all of the above and your current intake/exhaust.
