[brharris777]

The engine in my 98 cobra has 135000 miles on it. I am planning on a new engine or having this one rebuilt. ive heard things about 98 cobra blocks being an amazing place to start but i may be mistaken. Im looking at somthing from livernois, either a rotating assembly or whole motor and my end goal is to make anywhere between 500 and 600 horse. Im looking at going compund boost and still want the car to be streetable. Anyone with any info please help me out.

[Mach Boy]

You have a teksid aluminum block. They are as strong as they come from the factory.

[brharris777]

thats what i had read here and there but i didnt wanna go spouting off. capabilities?

[Doc8224]

They will hold over a thousand. I also don't think it's really worth wasting the money for compound boost if you are just going for 500-600. You can get that on a good motor with either a blower or turbo's no need for both. If you can afford the down time then just build using your block it's much lighter than the Iron block and it will hold it all.

[brharris777]

Originally Posted by Doc8224 They will hold over a thousand. I also don't think it's really worth wasting the money for compound boost if you are just going for 500-600. You can get that on a good motor with either a blower or turbo's no need for both. If you can afford the down time then just build using your block it's much lighter than the Iron block and it will hold it all.

well i actually am aiming for the 600-700 but i didnt wanna over do my numbers and seem like an ass. I would prefer to stick with a supercharger but to get to those numbers i am concerned about having to push a supercharger to hard to get to it. so all that said what would be a good rotating assembly, obviously low compression is a must but would a stroker kit or big bore kit be more sufficable to reach those numbers. Also am i going to have to go with a full blown race cam that is completely unstreetable?

[Mach Boy]

If you're going to get a new rotating assembly get a stroker kit. It will help you reach your numbers better than compound boost. Compound boost isn't efficient. It's just got a wow factor to it and tells other people that you've got money. You can make more power on a turbo setup. The supercharger holds the turbos back.

I don't know why you couldn't reach your goals with stock cams and a stroker with a big enough supercharger.

[brharris777]

REALLY!!!!!!!!!!!! wow here i was thinking id have to do somthing crazy and make this a very unstreetable car and spend alot of money on heads and cams. obviously it would all help but wow that would be great if i could get my numbers with a new rotating assembly and a blower. which blower do ya spose would be the best for me?

[DickH]

You should get rods and pistons, maybe look into C heads and throw your cams in them.

[brharris777]

im looking at livernois' stroker rotating assembly. their stage 3 heads are 330 intake and 275 exhaust. how does the c head compare.

[Mach Boy]

Just about every supercharger except the Cobra Eaton is capable of the numbers you want. The supercharger isn't the hurdle. It's building a motor that can hold the power you want to throw at it. Don't forget that you'll have to upgrade other things to hold that power other than the engine.

[rk_2000_Z/28]

Plenty of street driven cars making 700 to the wheels. Also, compound boost is something I wouldn't really worry about for your goal.

A twin turbo kit would help you make that power.

As far as superchargers, the first place I would look is at a F1-A. Those bastards make some BIG power. But a large Kenne Bell will get you close to your goal also.

[Cricket]

Lol if you can get the Mammoth on your block then you can def make the power.

Depends on how you want the boost to be made too.

Do you want it down low or more up high?

Also the supercharger you choose does make a difference

Whipples can make great power, but put the stress on the engine

Kenne Bell can make great power, but puts the stress on the blower

Centrifigal superchargers can also make great power, but won't have the torque down low like a whipple or kenne bell.

[majorownage]

Originally Posted by brharris777 im looking at livernois' stroker rotating assembly. their stage 3 heads are 330 intake and 275 exhaust. how does the c head compare.

Not to piss anyone off, but strokers are really a waste of time and money, especially if you are doing a poweradder.

All you really need are some manley rods and pistons. You should be able to get some used 2003-04 cobra h beams for pretty cheap. Add some manley pistons, and you are off!

If you are going with a centrifigual blower, keep the compression ratio high (9.5 to 10.5)

For a screw/roots or a turbo you need a lower compression ratio.

Your b heads are just fine. No use in purchasing C heads...the difference (stock of course) is less than 15 hp n/a

[brharris777]

i'm liking kenne bell as far as superchargers go. i want a good flat torque band thats fairly neutral in the hi to low spectrum.

[CammedMysticCobra]

Originally Posted by brharris777 i'm liking kenne bell as far as superchargers go. i want a good flat torque band thats fairly neutral in the hi to low spectrum.

Whats up bro I see your getting put in the right direction towards what you will be building and what you want.

Heres my link of a very similar question from a memeber who was building 2004 Mach and was wondering what would be better for his build concerning what type of set up to go with to get the best efficency and all the questions you were asking.

Looks like I'm going with a Large Twin Screw.

And heres a link on the history and explation to the Teksid block which is the best block ever sold by Ford ever.

Lincoln Mark VIII

[brharris777]

hey thank you.

[brharris777]

ok so block, check.

rotating assembly, I need a new rotating assembly anyway or at least pistons and rods so wouldnt a stroker kit be the best way to go?

heads and bumpsticks, comps XE-R 106400 cams seem like they would be good for my application, as far as heads im still clueless.

and according to kenne bell if my engine is as strong as an 03-04 i can use the mammoth and make 700 easy.
'03-'04 Cobra 4.6 4V 2.8L Competition Supercharger

[Dirtyd0g]

Tip, MarkVIII blocks are the same if not better and easier to get.
Do yourself a favor and use the Mahle pistons, for one they don't have to run the high clearance so they don't knock when they are cold, for 2 they are the best deal out there for forged pistons.
I also prefer the Teksid block crank because it is nodular and lighter. Using 03/04 cobra rods with that setup will make an easy to balance setup. Tungsten is expensive if you have to buy it for heavy pistons or rods to balance out.
Alan

[brharris777]

Originally Posted by Dirtyd0g Tip, MarkVIII blocks are the same if not better and easier to get. Do yourself a favor and use the Mahle pistons, for one they don't have to run the high clearance so they don't knock when they are cold, for 2 they are the best deal out there for forged pistons. I also prefer the Teksid block crank because it is nodular and lighter. Using 03/04 cobra rods with that setup will make an easy to balance setup. Tungsten is expensive if you have to buy it for heavy pistons or rods to balance out. Alan

Ok thank you. duely noted.


Um any reason i cant use the mammoth kit for the terminator?

[Dirtyd0g]

Originally Posted by brharris777 Ok thank you. duely noted. Um any reason i cant use the mammoth kit for the terminator?

I don't know what the mammoth kit is,but I will check it out