New guy to the forum here. I'm sure that this has been discussed before, but I looked through about 10 pages of topics relating to "6.2 gas performance" (back to 2017) and didn't quite see what I was looking for. Sorry if it's re-hash.

Just bought the 6.2 gas powered F-250 Supercrew (2019 FX4 Lariat) and I was hoping that someone would have some sort of aftermarket performance kit for that motor. I opted to stay away from the diesel knowing that I would miss out on some serious power. I'm not dissapointed in the truck's performace per say, but I would like to see what I can do to squeeze a little more out of it. I live in Colorado, so I will be going up and down some small hills on occasion. I tow an ATV or two on a small trailer, but nothing much larger than that for now. I plan to put a pop up camper on it in a few years. Towing isn't my main purpose...so that isn't really the issue....but I DO want to put some 35" tires on it (the stock tires are already around 33").
From what I understand, the change in tire size shouldn't be an issue, but I would still like to see what I can do about performance. My salesman at 4 Wheel Parts kinda confirmed what I already thought I knew about adding a cold air intake, and cat back exhaust...maybe with a performance programmer box.... total gain in HP maybe 15%?

Who has some first hand experience with this, and can you tell me about the results with what you've tried. Are there any other upgrades that I should be looking at? (Raush supercharger?? Do they make one for this truck? I read somewhere that the 6.2 motor doesn't do well with boost)

I DID see a topic discussing the noise from cold air intakes. I had one on my F-150, and it was a little noisier, but not too bad. Has anyone found/used a cold air intake that adds performance but wont make me need to wear hearing protection on long trips? Same with the exhaust. I don't need to wake up my neighbors when I leave for work in the morning...I just want the truck to be a little peppier.

Thanks in advance!


Brad

 

There’s a separate 6.2l forum; bunch of threads there

here’s one

https://www.ford-trucks.com/forums/1...ore-power.html

 

Hopefully your truck came with 4.30 gears. Those make a real difference IMO. I've owned both (see signature).

 

Thanks... the link helped.

My truck came with the 3:73's I think ....maybe that is what I should be looking at instead of the exhaust, etc. Going to 4:10's might be the answer, and without voiding the warranty. I didn't know that the tuner box would do that.

That's why I'm here!! ...to learn!

 

With bigger tires, the gearing will definitely help.

 

I have the stock 18” wheels with 33s and 3.73s. No issues with power here. Some say third gear is a little deep but it’s a truck not a race car (my opinion).

i was really sweating the 4.30 vs 3.73 and after I drove the truck was completely satisfied with the 3.73.

And now I’ve derailed this thread with gear ratios, like thousands before me.

 

Towed our 5ver through the Smokies over Xmas with the 6.2 & 4.30 gears. No way I'd not get the 4.30 next time.. It would hit 4th gear often on the steep long grades, and very seldom did it hit third. I think a gear ratio change would do more than any tune/CAI/exhaust, unless your thinking camshaft swap...

 

I also was in the same situation as you. I purchased my 2019 gasser back in November and while I love the truck I wanted a little more performance. I also just installed 295/65’s which are a 35 x 11.5” along with a 1” BDS level.

Anyhow, after the bigger tires I noticed a tiny bit of power loss and a bit more lag. A few of my buddies have the pedal commander in their diesels and swear by it so I figured I would give it a try. I have only had the PC for about a week, but I can tell you that it is money well spent for $270!

The PC does not add any power, but it feels like a totally different truck. You can try the different modes and some are aggressive, but I found the city +2 mode to be the best for me. The throttle now give instant response and there is no more lag. I cant even tell anymore that I am running 35’s and I will never go without a PC in a pickup ever again. Best thing is that the dealer can never tell that you have had the PC in the truck as it will leave no footprint in the computer.

 

BULLEYEGUY ; I've had 2 6.2 trucks. Here's what I would do;
Since you are going with some heavier than stock 35" tires the best combo for the 6.2 would be 4.30 gears, no question. So put the tires on and find the best deal on the OEM size 4.30 gears you can. No factory warranty worries and your performance will greatly improve. Best bang for the buck. (that pedal commander thing I hear good things about but have never tried).

 

Thanks for all the advice. Originally, I was considering the gear change, but I figured that I would wait and see what happens after I upsize the tires. I am thinking that I might just start planning on that right away. I checked, and I DO have the 3:73's....but I hate to just pitch the new gears, it's got the lockout on the rear with less than 200 miles on them. Seems like a waste. (Maybe I could sell them to someone here??) I really want to keep it within the warranty guidelines....since I paid extra for an extended warranty to boot. I will probably go ahead and look into the Pedal Commander though. Having different settings might be smart just by itself.

You are suggesting (same as someone else) that I jump to the 4:30's? what about the 4:10's? Not enough? I'm only going to be running 35's....and that is a subtle change from the stock tires I have now (which are about 33" on 20 inch rims...they actually look pretty good!). I had an old F-250 High Boy way back when, and I had to get that motor (390 big block) spinning like a top to hit 65mph. Unfortunately, most of my driving is in the city, but when I get it up into the mountains, I want it to purr at 75-80.

 

Yes if you decide you want more performance after the new 35's I say go straight to 4.30's. They match up with that tire size very well. Sticking with the factory gear set won't void your warranty. If you are really worried about it and decide to have them done, you can have the dealer do it. My dealer was $2800 for the swap. At 75 mph you will be turning 2167 rpm with 34.5" tires. Here's a link for the calucalations:
https://www.randysworldwide.com/calc...sion-ratio-rpm

 

Go 4:88. Spendy, but the most reliable bang for your buck

 

I don’t want to derail this thread but would like more info on the pedal commander, can someone pm me info please.