S/C SB or N/A BB?
Thread Starter
Melting Slicks
Joined: Feb 2002
Posts: 2,298
Likes: 1
From: Sodertalje/Sweden
S/C SB or N/A BB?
How about it? I`m building a new engine from scratch and come to think about supercharging :thumbs: .A healthy Mouse with a nice Procharger and a nice cam or a mildly tweaked Rat.
The power output should be around 550 Hp and as much torque i can get.I dont not race my car at the strip,i just like to cruise around those twisties outside town and just "drive" the car.
Any ideas on this? :cheers:
The power output should be around 550 Hp and as much torque i can get.I dont not race my car at the strip,i just like to cruise around those twisties outside town and just "drive" the car.
Any ideas on this? :cheers:
Racer
Joined: Feb 2002
Posts: 322
Likes: 0
From: Alexandria VA
Re: S/C SB or N/A BB? (BB wowbagger)
My choice would be the super chargerd SB. I don't know alot about them, or big blocks, but I would assume the BB is going to have more torque and less gas efficency. And S/C's are just so cool.
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Re: S/C SB or N/A BB? (BB wowbagger)
A supercharged sb 383 or 396 would be sweet, I am in process of buying parts for a supercharged EFI 383. I am hoping for about the same numbers as you ( maybe just a little more ;)) plus knock down 20+ mph on the e-way.
Thread Starter
Melting Slicks
Joined: Feb 2002
Posts: 2,298
Likes: 1
From: Sodertalje/Sweden
Re: S/C SB or N/A BB? (Fevre)
What i`m looking for is driveability,much bottom end.500-550 Hp and 550Ft/lbs should not be a problem to muscle out of a s/c mouse.Mpg is not much of a issue. :cheers:
All my friends think i`m crazy going from a Rat to a Mouse.
If you compare the costs for the two,who will come out on top? :cheers:
All my friends think i`m crazy going from a Rat to a Mouse.
If you compare the costs for the two,who will come out on top? :cheers:
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Re: S/C SB or N/A BB? (BB wowbagger)
What i`m looking for is driveability,much bottom end.500-550 Hp and 550Ft/lbs should not be a problem to muscle out of a s/c mouse.Mpg is not much of a issue. :cheers:
All my friends think i`m crazy going from a Rat to a Mouse.
If you compare the costs for the two,who will come out on top? :cheers:
All my friends think i`m crazy going from a Rat to a Mouse.
If you compare the costs for the two,who will come out on top? :cheers:
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Le Mans Master
Joined: Jan 2000
Posts: 8,721
Likes: 108
From: Canada
Re: S/C SB or N/A BB? (BB wowbagger)
I 100% concur with the above, go s/c sb route to meet your req'ts on those twisties. I love bb but would not put one in my vette. I am very happy with my 383 it performs great and returns @ 19 mpg at cruise.
Safety Car
Joined: Aug 2000
Posts: 3,909
Likes: 26
From: Clymer PA
Re: S/C SB or N/A BB? (Fevre)
A mild big block should be able to satisfy the 500-550 horsepower goal....and you'll have change left over! Price around for a supercharger plus whatever motor parts you want to use for the small block. Dollar for Dollar the naturally aspirated big block will be cheaper. Not to mention you already have the radiator, brackets etc... for it.
OR
Why not go with a supercharged big block :D....that's what I'm doing.
OR
Why not go with a supercharged big block :D....that's what I'm doing.
Thread Starter
Melting Slicks
Joined: Feb 2002
Posts: 2,298
Likes: 1
From: Sodertalje/Sweden
Re: S/C SB or N/A BB? (bence13_33)
Why not go with a supercharged big block :D....that's what I'm doing.
Safety Car
Joined: Oct 2000
Posts: 4,080
Likes: 565
From: Allen TX
Re: S/C SB or N/A BB? (BB wowbagger)
As many have said, either combo can be setup to easily produce your goal of 500-550hp.
Actually a blown SB that only produces that is weak in my book. I had a SBF (331cubes) that put out 675+hp (chassis dyno'd at 615 at the wheels). Got 22mpg on the highway with a 5-speed OD trans. I used a Vortech blower, but the ATI Prochargers have come a long way and are very good. This car was not a daily driver by the time I had reached this power level, but was very, very streetable. I even had catalytic converters on it since it was a late model, smog car.
But I would definitely price it out first. A blown SB is not going to be that cheap. If its going to handle the real power potential of the Procharger, then you will want a forged bottom-end and a 4-bolt block. Run the CR ~8.75:1-9.0:1 with aluminum heads and you could run 12-14psi on pump gas all day long. Do NOT spend all this $$ to run a 5-6psi blower. That is a waste, IMHO.
Good luck.
Actually a blown SB that only produces that is weak in my book. I had a SBF (331cubes) that put out 675+hp (chassis dyno'd at 615 at the wheels). Got 22mpg on the highway with a 5-speed OD trans. I used a Vortech blower, but the ATI Prochargers have come a long way and are very good. This car was not a daily driver by the time I had reached this power level, but was very, very streetable. I even had catalytic converters on it since it was a late model, smog car.
But I would definitely price it out first. A blown SB is not going to be that cheap. If its going to handle the real power potential of the Procharger, then you will want a forged bottom-end and a 4-bolt block. Run the CR ~8.75:1-9.0:1 with aluminum heads and you could run 12-14psi on pump gas all day long. Do NOT spend all this $$ to run a 5-6psi blower. That is a waste, IMHO.
Good luck.
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: S/C SB or N/A BB? (BB wowbagger)
Vettes are top end cars. Go with a high winding SB. In street trim and tires, its hard to put all that BB tq to the ground. Thats why the hopped up SB's usually run right with the BB's
Team Owner
Joined: Feb 1999
Posts: 34,454
Likes: 665
From: Republic of Texas
Re: S/C SB or N/A BB? (Jvette73)
I'd go with the Big Block, nothing like lifting the hood and seeing a massive motor. :reddevil
And for those who doubt the fact that BB can handle, Chevy didn't race Small Blocks at LeMans, it was the 427 L88. And it won..... :D
And for those who doubt the fact that BB can handle, Chevy didn't race Small Blocks at LeMans, it was the 427 L88. And it won..... :D
Melting Slicks
Joined: May 2002
Posts: 2,508
Likes: 0
From: Wisconsin
Re: S/C SB or N/A BB? (BB wowbagger)
I remember reading an article about a comparison between a 400 small block and a 400 big block. In the end the big block made more power, but it cost more. The small block made less power, but with the cost savings a supercharger could have been bought and more power could be made then the big block. I think small blocks are better for pretty much any situation. I really can't think of one where a big block would be better. Small blocks can make just as much power. A supercharged small block is the absolute best way to go. Don't forgot to look into a screw supercharger too, they are more efficient and provide better power throughout the curve over a centrifugal, but centrifugals can feed more air in at the higher RPMs, but it really depends on how large of a screw blower you get.
Team Owner
Joined: Feb 1999
Posts: 34,454
Likes: 665
From: Republic of Texas
Re: S/C SB or N/A BB? (Schmucker)
I think small blocks are better for pretty much any situation. I really can't think of one where a big block would be better. Small blocks can make just as much power. A supercharged small block is the absolute best way to go.
I will say that each has their place, but to say a Big Block is absolete is just well.......wrong.
Safety Car
Joined: Nov 2001
Posts: 3,728
Likes: 1
From: Maple
Re: S/C SB or N/A BB? (BB wowbagger)
are you talking the HP at the wheels or at the crank?
if it is at the motor then would a small block with supercharger be more cash then a mildly built BB?
if you want to spend the cash on a small block and have a s/c for the sake of saying it is s/c'd..then sure...but if you just want those numbers i would go BB..a mild one will give you those numbers no problem....throw a s/c on a BB if you want.. :thumbs:
i have plenty of torque i think, and have no problems putting it to the pavement...just ask anyone that's been in my car...
[Modified by 1bad69, 7:04 PM 7/1/2003]
if it is at the motor then would a small block with supercharger be more cash then a mildly built BB?
if you want to spend the cash on a small block and have a s/c for the sake of saying it is s/c'd..then sure...but if you just want those numbers i would go BB..a mild one will give you those numbers no problem....throw a s/c on a BB if you want.. :thumbs:
i have plenty of torque i think, and have no problems putting it to the pavement...just ask anyone that's been in my car...
[Modified by 1bad69, 7:04 PM 7/1/2003]