eyeballing new block. . . what compression?

[MadCow]

If I were to shoot for 900rwhp what parts should I get?

Sportsman block or aluminator?

Mahle pistons with arp studs?

Stock crank ok?

Manley how beam rods?

Anything else to look for?

Stock crank is supposedly as strong as the 4.6 cobra cranks which have seen over 2000hp.

As for 900whp, you are pretty close as is at 700whp. Your supercharger is probably sucking up 100whp or so at that power level. Maybe switch to a turbo setup? But if you don't wanna spend the money, I say just turn the boost up on you stock motor, run good fuel and keep the rpm low. May get lucky

Saving money and racing are rarely ever mentioned in the same sentence. With a relatively new platform parts are expensive. You are never going to do anything significant without spending a lot of money.

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[doodguy]

Stock crank is supposedly as strong as the 4.6 cobra cranks which have seen over 2000hp.

As for 900whp, you are pretty close as is at 700whp. Your supercharger is probably sucking up 100whp or so at that power level. Maybe switch to a turbo setup? But if you don't wanna spend the money, I say just turn the boost up on you stock motor, run good fuel and keep the rpm low. May get lucky

Saving money and racing are rarely ever mentioned in the same sentence. With a relatively new platform parts are expensive. You are never going to do anything significant without spending a lot of money.

You think the cost of motors etc will go down over time? If so, I only run the higher boost e85 etc at the track a couple times a year.

I don't really know the trend in performance parts whether they go down in time stay same go up?

 

[Kellys69z]

You think the cost of motors etc will go down over time? If so, I only run the higher boost e85 etc at the track a couple times a year.

I don't really know the trend in performance parts whether they go down in time stay same go up?

I doubt it will go down. My previous 32v motors were just as expensive to build.
Read through this thread on modular fords it's got a lot of useful info on rods, and I agree with a lot of it. When you start pushing those levels it's a roll of the dice it will work, but for how long? And when it goes it won't be a cheap fix. I'm not trying to discourage, but just inform. I've been there before. http://www.modularfords.com/threads/245777-Cobra-Manley-H-Beam-Snapped-in-Half

 

[MadCow]

You think the cost of motors etc will go down over time? If so, I only run the higher boost e85 etc at the track a couple times a year.

I don't really know the trend in performance parts whether they go down in time stay same go up?

The price of the major parts will absolutely go down as they get older and more available and cars start getting wrecked and and junked. Then when they get rare (and desirable) they get expensive again. The 4.6 was brand new once upon a time and a replacement motor was expensive. Now between trucks, crown vics, lincolns, mustangs, and whatever else I literally see dozens every time I walk thru a junkyard and they will let you have one for a couple hundred bucks.

Think of if this way, John Mihovetz ran B cylinder heads into the 6's in a 1/4 mile for years before he switched to GT supercar heads. You would be hard pressed to get $100 for a set. I know this personally. Even C heads can be had for cheap. Teksid blocks have been proven beyond 2000hp without sleeving or block filling and can be had for less than $300. Now back in 93 how much do you think these parts cost from Lincoln or from a wreck? And imagine that adjusted for inflation. Now you can buy a running driving Mark VIII for <$1000 with those parts and then some.

Hot rod parts cost what they cost. But as the platform becomes more available and cheaper the parts get cheaper. Then when it gets really popular parts start coming from China and it becomes cheaper still.

So what I am saying is rotating assemblies, valve/springs, cams, intakes, oil pumps, after market parts, etc, will be the same mostly when buying new. But the factory parts are definitely cheaper as the platform ages.

Here's my advice. Leave your car alone. Go grab a 4.6 for a couple hundred dollars and build it in your free time and have fun. And find a nice cheap mustang to put it in before the Chevy boys drive the price up even higher.

 

[bklynpanman]

Is it the angle or do those sleeves look horribly wrong

 

[Kellys69z]

Is it the angle or do those sleeves look horribly wrong

It's tooling marks from roughing them in. I still have to measure the deck height and than cut the deck.

 

[doodguy]

The price of the major parts will absolutely go down as they get older and more available and cars start getting wrecked and and junked. Then when they get rare (and desirable) they get expensive again. The 4.6 was brand new once upon a time and a replacement motor was expensive. Now between trucks, crown vics, lincolns, mustangs, and whatever else I literally see dozens every time I walk thru a junkyard and they will let you have one for a couple hundred bucks.

Think of if this way, John Mihovetz ran B cylinder heads into the 6's in a 1/4 mile for years before he switched to GT supercar heads. You would be hard pressed to get $100 for a set. I know this personally. Even C heads can be had for cheap. Teksid blocks have been proven beyond 2000hp without sleeving or block filling and can be had for less than $300. Now back in 93 how much do you think these parts cost from Lincoln or from a wreck? And imagine that adjusted for inflation. Now you can buy a running driving Mark VIII for <$1000 with those parts and then some.

Hot rod parts cost what they cost. But as the platform becomes more available and cheaper the parts get cheaper. Then when it gets really popular parts start coming from China and it becomes cheaper still.

So what I am saying is rotating assemblies, valve/springs, cams, intakes, oil pumps, after market parts, etc, will be the same mostly when buying new. But the factory parts are definitely cheaper as the platform ages.

Here's my advice. Leave your car alone. Go grab a 4.6 for a couple hundred dollars and build it in your free time and have fun. And find a nice cheap mustang to put it in before the Chevy boys drive the price up even higher.

This is some fantastic advice!

I will soon be between 800 and 850rwhp. I think I'll sit there for a while. My worry is will stock block handle that for long or should I get another block and sell my stock block?

 

[MadCow]

This is some fantastic advice!

I will soon be between 800 and 850rwhp. I think I'll sit there for a while. My worry is will stock block handle that for long or should I get another block and sell my stock block?

At that power level nothing is for certain so don't count on a stock motor to last. Some get lucky and maybe you will, but maybe you won't. And remember, a supercharger takes power to make power. At 850whp the motor is seeing 950whp worth of stress and the supercharger is taking 100 or so.

 

[doodguy]

At that power level nothing is for certain so don't count on a stock motor to last. Some get lucky and maybe you will, but maybe you won't. And remember, a supercharger takes power to make power. At 850whp the motor is seeing 950whp worth of stress and the supercharger is taking 100 or so.

Thats something I never really understood. My Roush supercharger is pretty easy to turn by hand. I'm sure I don't have the turning power of 100 horses in my hand. Where does all the power loss come from?

Also as you go down in pulley size the supercharger spins faster, and potentially easier so it would take less power to spin it doesn't it?

I know there aren't any guarantees. I'm just trying to figure out what makes sense. I want to make some serious power. I see guys running 6 second 1/4 miles and wonder why not me?

I'm trying to get into 9's and I think I'll be fine there. Just trying to figure out how and how to afford it lol.

 

[doodguy]

At that power level nothing is for certain so don't count on a stock motor to last. Some get lucky and maybe you will, but maybe you won't. And remember, a supercharger takes power to make power. At 850whp the motor is seeing 950whp worth of stress and the supercharger is taking 100 or so.

I've been eyeing the livernoise block for $5500 or the MMR block for $4900. They are both stronger than what I have now, just the question is are they strong enough?

 

[turbo50]

Thats something I never really understood. My Roush supercharger is pretty easy to turn by hand. I'm sure I don't have the turning power of 100 horses in my hand. Where does all the power loss come from?

Also as you go down in pulley size the supercharger spins faster, and potentially easier so it would take less power to spin it doesn't it?

I know there aren't any guarantees. I'm just trying to figure out what makes sense. I want to make some serious power. I see guys running 6 second 1/4 miles and wonder why not me?

I'm trying to get into 9's and I think I'll be fine there. Just trying to figure out how and how to afford it lol.

Turing it by hand vs spinning it 7500rpm under boost is completely different

 

[MadCow]

Thats something I never really understood. My Roush supercharger is pretty easy to turn by hand. I'm sure I don't have the turning power of 100 horses in my hand. Where does all the power loss come from?

Also as you go down in pulley size the supercharger spins faster, and potentially easier so it would take less power to spin it doesn't it?

I know there aren't any guarantees. I'm just trying to figure out what makes sense. I want to make some serious power. I see guys running 6 second 1/4 miles and wonder why not me?

I'm trying to get into 9's and I think I'll be fine there. Just trying to figure out how and how to afford it lol.

What TURBO50 said.

Plus you got it backwards on the pulley. You ever ride a 10 speed bicycle? When you put the wheel gear all the way down to the smallest gear you can go faster but its extremely hard to pedal because every rotation of your pedal equals 2 or 3 wheel rotations. Smaller drive gear makes a reduction. Larger drive gear makes an overdrive. The bigger the blower and the faster you spin it the more power it takes. A top fuel supercharger takes around 800ish HP to turn at those power levels.

 

[doodguy]

What TURBO50 said.

Plus you got it backwards on the pulley. You ever ride a 10 speed bicycle? When you put the wheel gear all the way down to the smallest gear you can go faster but its extremely hard to pedal because every rotation of your pedal equals 2 or 3 wheel rotations. Smaller drive gear makes a reduction. Larger drive gear makes an overdrive. The bigger the blower and the faster you spin it the more power it takes. A top fuel supercharger takes around 800ish HP to turn at those power levels.

Awesome explanation! Thank you

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