love my truck got it 3 ago weeks. 92 F150 supercab 302 auto XLT ok got the shocks rancho 5000 front air shocks back ,31/10.50/15 bridgestone. Muffler 40 flowmaster .Drained the tranny man that was black JVC cd 12 changer Its coming together. Now air box or twin filters help which way to go also timing14 degrees not more than 16 right or would a superchip take care of the timing I don't want to do any thing that would kick a code THANKS you guys . You are the best

 

Since you have Speed Density, I would just get the K&N FIPK for your truck. You can advance oyur timing, but I went with the Superchip and love it. It was by far the best mod I did.

 

I've got twin filters and 14ish degrees. If your plugs and wires are good you might be able to go 18 degrees.

 

Ok get a pair of filters remove the air box . 2/3in pipe and remove all that stuff fixed to the box air scoop get that small filter is that all I need Insky thanks

 

As for timing the best bet it too experiment with your individual truck. I run 14 degrees on my '95 with regular gas, but can easily run more if I use higher octane fuel.

Differences in weight, gear ratios, and ECM programming can affect how much you can fun safely. I tend to back down slightly to account for towing and heavy load conditions. I also run big gaps with my ignition for the lower rev gains, but to some extent big gaps will allow detonation to occur earlier at higher revs.

Just don't go overboard with the changes and take your time. I always turn the stereo off so I can hear even the slightest ping when I adjust timing, just to be safe.

 

How exactly do you do the twin filters? what size filters do you use? I'm assuming that you are taking the airbox out and putting two cone filters on right?

Let me know,

Pete

 

The twin tubes are roughly 3" inside diameter. I used two APC Intimidator cone filters ($15 each)and two 3" exhaust collars($3 each) to clamp onto and some K&N oil(I already had). Stuff the collars into the tubes, clamp, slide cone filters over collar, clamp. (Some soup cans are similar in diameter ) Clamps are $1ea.

I used a standard APC crank case breather filter at the end of the breather tube.($8?) Yes, I removed the air box. Currently the filters are bungee corded down until I figure out a bracket or something.

It sounds like a snake hissing until I hit the throttle wide open and then it sounds like a race car!

I guess I should have snapped a photo

 

Seems like an inexpensive way to go. Since the TB end of the tube is actually smaller than the airbox end I imagine the tubes flow decent and that you wouldn't be getting much more gain from a FIPK. Is this true?

 

I'm doing that this weekend. I'm coming from a 4 banger here, so bare with me. Where does the crank case breather filter intall on the 5.8L engines?
And what did you use the K&N oil on new filters for?

Thanks, and sorry for the questions!

Pete

 

the factory one is inside the airbox. if you look at the airbox, theres a tube coming out of the back that goes to teh valve cover. inside the airbox at the end of the tube is the crankcase breather filter. some people remove this thing entirely and install a breather filter right at the valve cover.

 

Perfect. Thanks!

Pete