So I searched the site and didn't find much about this. is the TB off a mustang 4.0L the same size as a rangers or bigger and would it bolt up?

 

Not sure.. if your long block is stock you could always knife edge the blade and loctite / shave down the screws. (that's what I've done)

Rich

 

I wouldn't waste my money. The mustang version makes like 2 more horsepower or something like that.

 

I would guess the interior diameters are the same. One issue you would have to handle is the accelerator. Mustang is drive by wire (electronic), Ranger has a regular cable drive.

 

humm the fly by wires deal would be kinda hard to work with. i wonder what all is different on the stangs that give them the 2hp... and if i could get one cheap enough what the hell

 

how do you do this? you have a thread where you did it and is it very hard. i'm pretty mechanical and could handle that just don't know what i'm doing

 

there's screws in there, and that mod is that you locktite the screws into place, let it set, then cut the excess screw threads off.

'knifeedge' is basically sharpening the butterfly on the leading edge for a sharper transition.


and thats my not too knowledgable explanation...Rich or Wayne will have a MUCH better answer than that. lol.

 

Naw he's got it right.

You remove the screws and plate.

You very carefully remove about 2/3rds of the material on the engine side of the bottom 1/2 of the plate. (like a 15degree chamfer) What that does is to more quickly allow air to flow around the plate at part throttle. And at full throttle it helps to ease the air to flow past that leading edge. It's now trying to flow past a "knife" vs a 1.5mm thick blunt end plate.
When doing this make sure that the gap around the plate -to- bore remains the same! (very important for idle quality)

Now take the loose screws, put thread locking loctite on the screws threads. Install the plate and tighten. Let it dry for a few hours. Then using a dremel tool or a small grinder shave down the threaded part sticking out of the shaft holding the plate and screws.

This is a very "shade tree" way of increasing the TB opening size. IMO it's only going to be worth the effort **if** you spend significant time at WOT.
In my case I go to the track a few times a year. So for me it's worth it. Besides.. as long as you don't slip and nick the bore.. or remove too much from the plate? There is absolutely no down side to this.

Rich

 

i had a 80mm on my 4.6L gt.
i still have the stock 65mm, ill see if it fits by chance

 

did you ever get around to checking? just curious!

 

a larger throttle body on a stock engine, even with a tuner and stuff, is useless.