Boost for D1 procharger
Thread Starter
Racer
Joined: Feb 2007
Posts: 460
Likes: 0
From: Calgary AB
Boost for D1 procharger
Is there a chart that will give you a guide line of how much boost you will make with what size pulley?
next question:
what is the smallest pulley you can put on the D1 keeping it under the max flow of 1400cfm?
Thanks
next question:
what is the smallest pulley you can put on the D1 keeping it under the max flow of 1400cfm?
Thanks
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
I am sure some of the guys on here can come up with something for you. But boost is not soley based on pulley size. Boost is a measurement of restriction. The better your motor flows less boost is required to make the same power as a worse flowing motor. Your cam makes a big difference on the amount of boost you make. So to get you a straight forward answer of a 3.8" pulley will give you 10psi is just not going to be accurate. There are ball park figures that the vendors or a bunch of the guys on here can toss your way but dont expect them to be dead on when you install the system.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
It's not the CFM you should worry about, it's the max RPM. The Max impeller RPM for a D1SC is 65,000 RPM and it has a 4.44:1 step up so the pulley can't be spinning faster than 14,640 RPM (minus a little less for safety's sake). The crank pulley is 7.37" in diameter. With a 6500 redline I get 3.33" minimum pulley diameter.
I did find this: http://www.exoticperformanceplus.com...html?item=1077
I did find this: http://www.exoticperformanceplus.com...html?item=1077
Thread Starter
Racer
Joined: Feb 2007
Posts: 460
Likes: 0
From: Calgary AB
It's not the CFM you should worry about, it's the max RPM. The Max impeller RPM for a D1SC is 65,000 RPM and it has a 4.44:1 step up so the pulley can't be spinning faster than 14,640 RPM (minus a little less for safety's sake). The crank pulley is 7.37" in diameter. With a 6500 redline I get 3.33" minimum pulley diameter.
I did find this: http://www.exoticperformanceplus.com...html?item=1077
I did find this: http://www.exoticperformanceplus.com...html?item=1077
thanks
Former Vendor
Joined: May 2006
Posts: 402
Likes: 2
From: Houston TX
It's not the CFM you should worry about, it's the max RPM. The Max impeller RPM for a D1SC is 65,000 RPM and it has a 4.44:1 step up so the pulley can't be spinning faster than 14,640 RPM (minus a little less for safety's sake). The crank pulley is 7.37" in diameter. With a 6500 redline I get 3.33" minimum pulley diameter.
I did find this: http://www.exoticperformanceplus.com...html?item=1077
I did find this: http://www.exoticperformanceplus.com...html?item=1077
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