Welcome to the site Nick,

I'm am not aware of any Eaton or Screw type supercharger kit that is avalible at this time for the 98 & early DOHC engines.(<-EDIT:doh:They do, thanks A Bill and PGreenSVT for clearing that up) These motors use what is called the B head with a seperate primary and secondary port, one is a rectangle and the other is round and only one of the ports has the injector (not sure which is what and where).

Kenne Bell makes a kit to put their blower on a 99-01 engine.

If it's a 03+ DOHC motor then you have the option of installing the 03/04 Cobra lower intake and running a Eaton or a twinscrew (Kenne Bell or Whipple).

If you can get us a pic of the motor you have that would help alot in trying to figure out what you have and all your options. The other problem with installing a blower on any of the lincoln motors is that they have weak pistons and rods. Check out these two threads, kinda in the same situation that you are as far as bottem end strength being an issue:
http://www.modularfords.com/showthread.php?t=25507
http://www.modularfords.com/showthread.php?t=25381

Again, welcome to ModularFords and feel free to ask as many questions that you may have.

-Mike-

 

4.6

thanks mike not what i wanted to hear the motor is in the car and the headers were made for them already. like i said before it is a protype, so i cant just put a set of headers on. if i change the motor to the cobra motor will the headers fit? or am i just better of buying a new 302 or 351 from ford? the car is rear engine so i need something that is the same size. if i do change it with one of the new motor would they be the same size? they cant be any longer.

thanks for all the help mike

nickl

 

Kenne Bell stopped making superchargers for the 96-98 Cobras? The 93-98 Lincoln MK VIII motor is basically the same as the 96-98 Cobra. Just use Cobra junk from those years and have at it.

As to headers, that depends on the car body. Cobra headers don't fit the MK VIII on the drivers side without modification. Kooks makes headers for the MK VIII, sorta

 

Screamn03 must have forgotten that Kenne Bell has had a 1.7L twin screw out for the 96-98 Cobra forever. It is not intercooled and somewhat limited because of this but it is out there and available for the "B" headed motors. Reichart Racing is also working on a kit to use the KB 2.2/2.4 on the "B" heads. You could also swap heads to the "C" heads and use the KB kit for the 99-01 Cobra. You can keep the same headers.

 

I'm replying here instead of PM so that I can be corrected if wrong. Also it may answer questions non posters may have.

The 93-98 Lincoln MK VIII engine is basically the same as the 96-98 Mustang Cobra engine. That's where the Cobra got it's engine from. The differences in the engines are the exhaust cams (fuzz different for smoother idle in Lincoln, no power loss), the intake design and the forged crank used in the Cobra. The reason for the power difference is the intake manifold and the exhaust manifolds. The intake for the MK VIII was designed for torque on the bottom end for the automatic transmission while the intake for the Cobra was designed for higher RPM use with a manual transmission. The exhaust manifolds on the Lincoln have the converters mounted right up on the passenger side and the converter is part of the drivers side manifold. That kills top end dramatically which hurt the HP rating. But it makes the car quieter and lights off the converters faster for better emissions. Plus, there really isn't that much room under a MK VIII. It's weird, the car is huge but almost every available space is occupied by something.

http://www.kennebell.net/superchargers/ford/mustang-cobra46/mustangcobra46.htm

The Kenne Bell website can answer the supercharger questions better than I can.

The truly weak point on the Lincoln motor is the same as on the Cobra motor, ring package too high on piston. Cast or forged crank is of no importance on these street pieces except for bench racing points. Next weak point would be the rods.

Also, since the KB unit is not intercooled and the inlet path is convoluted, you can't make as much power as with a newer motor. You never stated which car you're using but the Lincoln uses vacuum controlled IMRCs while the Cobra uses electrically controlled IMRCs. You'll need to use the Cobra control with a window switch. Lonnie can give you more info, he's usually on TCCOA forums.

For fuel, 255L pump in the tank, 42# injectors and a Cobra air inlet/filter assembly. Computer must be chipped, SCT is what I'm using. Tranny should be rebuilt to 'Jerry' specs and running a cooler. Radiator is OK stock but should be upgraded if you plan on actually using the supercharger. (There are a lot of show cars out there, you know the ones).

I can't think of anything else offhand. I'm sure I've missed some stuff. My KB unit is still collecting dust in the basement. I've upgraded the brakes, chassis, computer and some other junk but keep procrastinating on the blower.

 

4.6

thanks bill that helped a lot one more thing, would you know if a 302-351 is longer then the 4.6? if i cant get the power from the 4.6 i will change the motor.

thanks again bill

 

I'm guessing you mean the Windsor motors and not the Clevelands.

4.6L DOHC - length 28" * width 30" * height 29 7/8"
351W - length 27 1/2" * width 21" * height 23 3/4"

 

4.6

bill that is a lot smaller, am i better to go with a 351? can i get more power from the 351 easier, it seems like there is a lot more stuff made for the older motors.
the motor is going into a prototype so what ever i get, all the stuff will have to be made. bill will a procharger work on any motor? if i buy one i would just have to make the plumbing. thanks bill its nice to speak to someone that knows what he is talking about.

 

It all depends on what YOU are looking for in a motor and what YOU like. Personally, I don't like the 351 Windsor or the generic 302 engines. Does that mean they're bad? No, it just means they don't suit ME. I like the 4.6L modular motor but don't like the 5.4L modular motor, again, it's just personal preference. I do happen to like the 351C and Boss 302 engines. Does that mean they're good? No, that just means I like them. It all depends on what you're planning on doing with the thing and what YOU like.

Any centrifugal supercharger will work on any motor as long as you have the bracketry and space under the hood.

For myself, the 4.6L modular motor with a KB suits me at this time. Strong street performance with good fuel economy.

 

4.6

thanks bill i understand what your saying. i dont care what motor either, but i am trying to get 500+ hp out of it and i dont know if the 4.6 can give that. That is what i ment by what is better, can the stock 4.6 with the kb and headers come close to that or would the other motors work better?

 

You'll have to go intercooled to get that out of the 93-98 4.6L DOHC. You'd be better off getting the '03-'04 heads and intake to get that kind of power safely.

The Windsor motor can make that power but it won't be all that streetable without a supercharger. The emissions type 302 is right out of the question unless you turn it into a 347 stroker. The Cleveland engine can do it no problem but it's going to suck fuel and the Boss 302 can do it but it won't have any bottom end power.

For a long living NA street motor making that kind of power I'd have to give a good hard look at a 429 or a 460. If fuel economy is important, which it is to me, then the 4.6L engine with the '03-'04 heads and intake with a KB can do it easily. The non intercooled KB on the '93-'98 4.6L engine is really only good for about 450 HP and you'll still need upgraded internals (pistons and rods). Yeah, the 5.4L engine can be boosted to that kind of power rather easily but I don't like the motor (sucks fuel) and it takes up a lot of space.

Be sure you get other peoples opinions and use them to help formulate your own opinion. What works for me might not work for you. I'm sure you've seen that before.

 

4.6

thats what i needed to know. i am not worried about the fuel, if i use it 10 times a year it will be a lot. the car is for show and driving once a in a while. if i go with the better heads and intake, and no intercooler do you think i can still get some good power out of it? the is rear engine and i only have a little room. if i want the better heads and intake where can i get them? thanks again bill for all the help

 

You never said what car this is going into. Non intercooled supercharged applications aren't going to make as much power as easily and safely as intercooled. If you want to run the big numbers you have to use the big hardware. If you're going non intercooled then you might as well stick with the existing DOHC parts you have on hand. The newer stuff makes more power but the expense isn't worth it unless you need every HP you can get.

Heads and intakes can be picked up at Ford dealers or parts yards. Some of the vendors that sponsor this website can probably help out too.

Now this is just me, but when I'm building up a car, I don't shoot for a specific HP number. Dyno numbers are only good for bench racing and comparative analysis. I set up stuff more along the lines of, this thing needs to fly or this thing needs torque But, I'm primarily interested in street legal performance. With race cars I just go with what I can afford and work it from there.