Hey
i have a 08 5.4 and a couple months ago i finished putting long tube headers,exhaust,intake and a programmer and now i'm thinking about putting a saleen supercharger on it. and if so what else should i look at beefing up so i dont break anything.

 

1.Transmission
2. Transfer Case
3. Differentials
4. Axels
5. Brakes (might need to be number 1)

 

Non of the above is needed. I don't know where people come up with this stuff.
The Roush, Foose, and Saleen trucks all came with blowers and did not have anything of this sort done. With the exception of the brakes which some models I believe had upgrades. You can safely run 400-420 rwhp through these trucks without issue. In fact the first upgrade you would need to consider is the fuel system but even that won't be an issue till you exceed 10 psi. I can give you tons more info if you need or want it.

 

hey i would like to know more. the more you know the better

 

Ok. Gimmie some details on the truck. 2 or 4wd, size tires and wheels both current and plans for future, will you be towing and if so projected weight, what are your power goals, what do you want out of the truck? Getting the details ironed out now can save you a lot of money. As example some just want a supercharger and feel 8psi is all they will ever want. Then they get to feel the power and know there is more to be had with 10psi and so the upgrading begins again. In the process tuning you paid for with 8psi is no longer useful and must you must retune for 10psi. So knowing what you want front can save you some coin.

 

Agreed. While none of this is needed, it is recommended. But that also depends on how you'll be using your vehicle. As Blown Ford mentioned, you need to be specific on how you'd be using your truck. Racing it like it's a GT500 is a different application compared to hauling as if it's a SuperDuty.

Either way, credit to you if you go through with it. Personally I'd go with a Whipple.

 

Since you asked, I'll tell you where I came up with this stuff.
Is it needed? No. Did he ask what was needed? No. He asked, what should he look at beefing up so he doesn't break stuff.
Based on my understanding of human nature and the laws of physics, I determined that if he wanted to minimize the chances of breaking stuff, he could look at beefing up those items. Noting that better brakes could well be considered the number one item on the list.
Now, don't you feel enlightened?
However, I will have to say that your response - Is based much more in specifics rather than idle speculation.

 

I'd love to know more as well....

2wd with 33" tires on 20" wheels (no near future plans). No towing. I'd love to get as much power as possible.

 

No I don't feel enlightened, nor did I ask any question in my post lol. I can appreciate your speculation and it would have been a better post had you indicated you were speculating. So to help sort it out there is a whole list of things that will need to be beefed up or modified before you ever get into axle twisting, rear end shattering, deferential busting territory. The engines internals, fuel system, and exhaust, would all need to be upgraded to get you there. Not to mention the Maf housing and sensor as they will not support that kind of air flow. Don't get me wrong the driveshaft is a weak point and can fail when you start putting 500lbft of torque to the wheels and have drag slicks bolted on. The transmission can be a time bomb if the truck is not tuned properly, however with a stock trans, converter, and proper tuning the trans can handle everything that the stock internals motor can throw at it. The trucks from the factory are more than strong enough to support 420rwhp and 460-470ish rwtq.

Keep in mind that Roush, Saleen, and Foose all warrantied their FI'd trucks for 3/36,000 miles. And more recently the sc manufactures have started offering 100,000 mile warranties to go along with the blowers.

 

I hear ya! You can start with a blower and add it to the truck as she sits. For what it's worth the Roush blowers have been on sale lately for around $3600 iirc. You can easily be in 370-380 rwhp with 460+ rwtq. Not my favorite blower but with some upgrades like long tubes, true duals, efans, and 10psi you can get 410-420 rwhp out of her. With the Whipple you can expect 15-20 additional rwhp over the Roush at low boost levels like 8-10psi. This amount grows considerably as you head north with the boost. With a fuel system upgrade you can take the twinscrew to 12psi and make 460+rwhp.

With the 33" tires what gear is your rear end?