Supercharging stock 4.6 DOHC motors

[Russ Jerome]

I see these stock superchargers on e-bay all the time:
http://cgi.ebay.com/ebaymotors/03-04...Q5fAccessories

If you were to cobble this under the hood of a 1998
Lincoln Mark VIII with its aluminum 4.6 DOHC thats
rated at around 280 what can you expect to gain HP
wise? Pulley swap HP increse guess?

[STANMAN]

Thinking about doing that gives me headaches as the motor in the Lincoln is transverse mounted. I would think the HP would be about the same as a Cobra after finished though.

[Windsors 03 Cobra]

No the Mark Series is RWD, bolt it on, tune it up and get 400HP to start, its 03 Cobra junk.

I think the Marks have cast cranks, hypereutectrash slugs and powdered rods so those will be some limiting factors. Thankfully they are also equipped ith the holy grail of 4.6 performance a TEKSID block.
Pretty sure all slushbox 4.6 DOHC's are cast crank equipped.

[DurtyKurty]

Like any other 4.6, they should handle 5-7lbs of boost (similar to the 96-98 cobras) the rods are the weak points followed by the pistons. The biggest hurtle your going to face is the lower intake. All the lincolns are B heads. All those superchargers are designed around the '99 up C head. The one in that auction doesn't even include the lower intake and heat exchanger.

It could be done though. It's just time and money.

[Russ Jerome]

The lower intake was another Q, thanks on the replies.

[STANMAN]

No the Mark Series is RWD, bolt it on, tune it up and get 400HP to start, its 03 Cobra junk.

I think the Marks have cast cranks, hypereutectrash slugs and powdered rods so those will be some limiting factors. Thankfully they are also equipped ith the holy grail of 4.6 performance a TEKSID block.
Pretty sure all slushbox 4.6 DOHC's are cast crank equipped.

Yeah, I was thinking the Continental for some reason. It was early

[70 cutlass 442]

I think everyone has pretty much hit the nail on the head.... the rods will limit you, but still, 5-7 lbs will wake that motor up a bit, especially down low which is where my complaint has always been (especially on the 2V 4.6) needless to say it would be a cool project.

[Russ Jerome]

From what I can gather 450hp is a pretty fair limit for the Lincolns
cast lower end. More I read the HP gains on these setups is pretty
weak, cant believe how much HP is lost vs 7 psi from a turbo

[DurtyKurty]

...cant believe how much HP is lost vs 7 psi from a turbo

I take it you mean a turbo compared to a Heaton?

[Russ Jerome]

Ya I was reading "Street supercharging" book after I posted
the question. I know from personel experience the returns of
an exhaust driven turbine (turbo) at 7 psi but the supercharged
return at the same psi is lower obviously due to the parasitic
drag of the belt and CFM limitations.

A used factory supercharger is still cheap HP compared to me
fabbing up manifolds and plumbing for a turbo, turbos returns
are far above but with a 450hp limit not needed.

[Keyser Zosig]

I understand that you need to change the crank pulley, or modify the serpentine belts among many other things to get a stock terminator blower to work. I faintly remember reading about this a while ago in my Muscle Mustangs and Fast Fords magazine, the author of the tech article reccomended against attempting the swap over just buying an aftermarket blower.