more HP

Topic: more HP (Read 2879 times) previous topic - next topic

Reply #15 – January 18, 2006, 05:25:56 PM

It's not the supercharger...it's the engine! More specifically...the cylinder heads.

more HP

Reply #16 – January 19, 2006, 11:32:25 PM

If you want bang for your buck and seat of the pants feel. Change gears and then add a little shot of NOS.
Just my 2 cents. The head swap is not worth the $$. THe later model engine swap would be better

more HP

Reply #17 – January 20, 2006, 08:13:39 AM

I love the way your car sits 5.8 fastcat!

If you were to do a motor swap on a car with a mod motor anyway why not search out a 4.6 DOHC or perhaps go bigger and hunt down a 5.4?

more HP

Reply #18 – January 20, 2006, 10:11:51 PM

I have some pic's of a guy from TN. he put a '96 cobra(4valve) engine in a '96 T-bird.
He had it running on the stock 2V computer when he brought it to us. We burned him a chip an got alot more power out of it.

Thanks Paul, I love my AirRide suspion.

more HP

Reply #19 – January 23, 2006, 10:39:40 PM

Quote from: Paul Flockhart

I love the way your car sits 5.8 fastcat!

If you were to do a motor swap on a car with a mod motor anyway why not search out a 4.6 DOHC or perhaps go bigger and hunt down a 5.4?

Because, a 5.4 wont fit under the hood of an MN12 properly. You have to add a taller hood, and rig spacer plates to adapt the 4.6 intake manifold.

more HP

Reply #20 – January 24, 2006, 09:18:01 AM

Quote

a 5.4 wont fit under the hood of an MN12 properly

Now you're getting picky:rollin:

more HP

Reply #21 – January 24, 2006, 05:29:22 PM

I know, but if you want to keep it a sleeper, ther is no way in hell you are going to put a truck intake under that low hood. I have a 94 Bird, I am not even sure everything would fit right with the manifold adapters, becuase they add about an inch to the height of the intake.
Why does everyone think the 4.6 has no torque. That engine has just under 300 ft/lbs at the crank. All you need is a set of 3.73s like I put in mine, and let it all hang out after that!!

more HP

Reply #22 – January 24, 2006, 08:48:47 PM

I'm pretty sure that a 5.4 will fit in a mn12 aslong as you put the 99 or newer 4.6 van intake on it and aslong as you get the fuel rails needed.

more HP

Reply #23 – January 25, 2006, 07:23:13 AM

Impossible. A 5.4 has a taller deck height, therefore it is about an inch wider where the intake mounts to the head.

more HP

Reply #24 – January 25, 2006, 08:30:17 AM

Quote

That engine has just under 300 ft/lbs at the crank.

It's not that it doesn't have torque. It's that the torque high up in it's RPM range.

more HP

Reply #25 – January 25, 2006, 08:48:56 AM

Quote from: 5.8fastcat

If you want bang for your buck and seat of the pants feel. Change gears and then add a little shot of NOS.
Just my 2 cents. The head swap is not worth the $$. THe later model engine swap would be better

I have to disagree on this, my friend and I did the PI swap on his mustang and the difference was like night and day. I'm sure if you asked him he would not hesitate to do it again on any non-PI 4.6.

Of course then he put the Kenne Belle on there and the car changed again :)

more HP

Reply #26 – January 25, 2006, 12:13:07 PM

I seen a 351 cougar locally, around 96, with the stock hood. Dunno about motor mounts or anything, but its not impossible.

more HP

Reply #27 – January 25, 2006, 01:14:22 PM

Quote from: Haystack

I seen a 351 cougar locally, around 96, with the stock hood. Dunno about motor mounts or anything, but its not impossible.

He's talking about the 5.4 SOHC, not the 351.

Anyway I have two points to make here.

First, I have an issue of MM&FF where they swapped a 5.4 into a '99+ Mustang and kept the truck intake on it, and it fits albeit under a cowl hood.

Second, I also have a couple issues where they had project "Frightning" where they put the supercharged 5.4 into an '86 Mustang. The engine fits in the bay, but the supercharger setup is so tall that they had to cut a hole in the 4" cowl hood they had on the car.

So, it seems to me that a 5.4 would fit as long as you had a cowl hood on the car.

more HP

Reply #28 – January 25, 2006, 09:43:39 PM

Ok after researching and calling a guy, I've found that the 5.4 will fit, it just needs some greasing. The 5.4 van intake will fit under the stock hood of the 96-up mn12's along with the a machined cobra intake. I guess the cobra intake width differences can be taken care of at the machine shop without altering it drastically. The shock towers are the main problem. Can't be massaged out too well, and it isn't something that can just be cut out. Also, the lower K member has to be taken in to consideration for an exhaust. Out of the 3 guys who have done it, most say it was well worth it, but very hard and more involved than it seems. It would in all actually be easier to drop 351 in it, slap a blower on it, and strap in. Another thing about the 5.4 swap is that the valve covers can't be taken off until the engine is pulled.

more HP

Reply #29 – January 25, 2006, 11:20:00 PM

Quote from: Red_LX

He's talking about the 5.4 SOHC, not the 351.

Anyway I have two points to make here.

First, I have an issue of MM&FF where they swapped a 5.4 into a '99+ Mustang and kept the truck intake on it, and it fits albeit under a cowl hood.

Second, I also have a couple issues where they had project "Frightning" where they put the supercharged 5.4 into an '86 Mustang. The engine fits in the bay, but the supercharger setup is so tall that they had to cut a hole in the 4" cowl hood they had on the car.

So, it seems to me that a 5.4 would fit as long as you had a cowl hood on the car.

I have seen that article, and agree that it can be done, on a Mustang. Mustangs have much more hood clearence than an MN12 does. I have an intake tube that I made for my 94 out of a 7.3 Powerstroke intercooler tube, and I still had to flatten part of it to fit under the hood right.