Thinking about some different options, what do you guys think?
01-24-2014, 03:24 PM
#1
AKA "The CLOWN"
Thread Starter
Member Since: Feb 2010
Location: Chicago South Suburbs
Posts: 6,261
Likes: 0
Received 12 Likes
on
12 Posts
Thinking about some different options, what do you guys think?
Here are a few options I was thinking about.
Option 1. 3.50 pulley no restrictor plate, 14lbs boost = 650hp (example purposes)
Option 2. 3.25 pulley with a restrictor plate, 14lbs boost = 650hp
Option 3. 3.0 pulley with a bigger restrictor, 14lbs boost = 650hp
All of these option will net approximately the same top end hp give or take a few, but the power under the curve would be very different. The question I'm asking is what would be the pros and cons of these different choices?
Option 1. 3.50 pulley no restrictor plate, 14lbs boost = 650hp (example purposes)
Option 2. 3.25 pulley with a restrictor plate, 14lbs boost = 650hp
Option 3. 3.0 pulley with a bigger restrictor, 14lbs boost = 650hp
All of these option will net approximately the same top end hp give or take a few, but the power under the curve would be very different. The question I'm asking is what would be the pros and cons of these different choices?
01-24-2014, 04:04 PM
#2
Melting Slicks
Good Ideas!
Option 3 gives you most room to grow with pulley size etc plus should make power sooner as long as your belt/drive system wont slip.
Easier/cheaper to change a restrictor plate than a pulley
Why not option 3?
Option 3 gives you most room to grow with pulley size etc plus should make power sooner as long as your belt/drive system wont slip.
Easier/cheaper to change a restrictor plate than a pulley
Why not option 3?
01-24-2014, 04:31 PM
#3
ISIS SUCKS FAT CHOAD
The smaller pulley will always increase blower speed at the same relative engine speed given the larger pulley.
So assuming your numbers in your options are correct, I'd go with option 3 since it will yield more power more quickly.
The real question is how much more restrictive will the restrictor plate be in option 3 vs option 2?
So assuming your numbers in your options are correct, I'd go with option 3 since it will yield more power more quickly.
The real question is how much more restrictive will the restrictor plate be in option 3 vs option 2?
Last edited by MVP'S ZO6; 01-24-2014 at 04:33 PM.
01-24-2014, 04:42 PM
#4
AKA "The CLOWN"
Thread Starter
Member Since: Feb 2010
Location: Chicago South Suburbs
Posts: 6,261
Likes: 0
Received 12 Likes
on
12 Posts
The smaller pulley will always increase blower speed at the same relative engine speed given the larger pulley.
So assuming your numbers in your options are correct, I'd go with option 3 since it will yield more power more quickly.
The real question is how much more restrictive will the restrictor plate be in option 3 vs option 2?
So assuming your numbers in your options are correct, I'd go with option 3 since it will yield more power more quickly.
The real question is how much more restrictive will the restrictor plate be in option 3 vs option 2?
It's like putting an F2 on your car and using a restrictor plate!
Reason I bring this up is ECS has been successful for years using restrictor plates and A&A uses pulleys to reach desired boost levels. Both work very well, but both go about it in different ways!
Last edited by Blitzkrieg; 01-24-2014 at 04:54 PM.
01-24-2014, 04:59 PM
#5
ISIS SUCKS FAT CHOAD
That's what im kinda thinking too. That's why I asked about plate size
honestly bro you could test it and just keep a close eye on your IAT's.
Gotta have a way to monitor them though.
honestly bro you could test it and just keep a close eye on your IAT's.
Gotta have a way to monitor them though.
01-24-2014, 05:48 PM
#8
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
Posts: 28,846
Received 1,762 Likes
on
1,529 Posts
Don't mess with something that has work good for you for some time. The car runs dam good Brain, don't do something that you may hate. Robert
01-24-2014, 07:36 PM
#15
AKA "The CLOWN"
Thread Starter
Member Since: Feb 2010
Location: Chicago South Suburbs
Posts: 6,261
Likes: 0
Received 12 Likes
on
12 Posts
My plan is still to go with the 3.25 and 80lb injectors! I need a retune as I changed to 1 7/8 headers and my AF is a tad lean up top, also gained 1-2 lbs of boost when I put a Direct drive in! Chicago 1/2 mile should be fun this year!
01-24-2014, 09:20 PM
#18
Melting Slicks
I don't know your setup that well but...I know you have had it for a long time and it's been reliable. With that said, I'm with the other guys that said you should just leave it alone and drive it.
Save that money and get a shortblock built like you wanted to.
Save that money and get a shortblock built like you wanted to.
