25 psi in a 300

[81f100]

is there anyway a ford 300 can handle 25 psi on alcohol im planning on using a mpfi system my build is all in the r&d stage right now any help will be greatly apreciated

 

[Asa]

if you have enough money, you can do anything

however, everyone is going to ask you why you want 25PSI
a HP or a torque level is what you want to shoot for, you might only need 16PSI to get there, just randomly saying you want 25PSI doesn't really say anything

 

[JGTurbo]

I would say you would need aftermarket (probably custom) rods and very strong forged pistons. Head studs would be a must as well. The crank/main bearings would be fine in my opinion.
Even with studs though, I think the head gasket would be the weak point.

Just thoughts.

 

[81f100]

i know 25 psi is just an off the shelf number but i think it might be needed to get my truck down the track at a low 10 with the good ol 4.9

 

[inline300]

Get ready to find and pay out the ass for a quality headgasket as well

 

[Does10s]

Sure it can....for how long is the question!

We've run 18lbs. just fine in a 250. But we've also destroyed two motors too.

You're going to need to make a bunch of power to get a full size trunk into the 10's with a 300.

Doable? Yes. Durable and cheap? Who knows!

But give it a try, post lots of pics and let us know how it goes!
Someone has to do it!

Later,
Will

 

[81f100]

so yall say findin a good headgasket will be hard to find but dont they make copper head gaskets for our motors and since im plannin on having two tunes one for street and one for race i think it should last once it gets tuned in right but like i said im just researching now i still need to wait till im in the corps b4 i start tryin to buy/ build something

 

[BigJake34452]

we run 18 lbs. on our 300, now we need a new head gasket. but it takes it just fine.