D1SC with 3.2 pulley, what boost at 3000 rpm and 4000 rpm?
#1
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D1SC with 3.2 pulley, what boost at 3000 rpm and 4000 rpm?
Hi,
I got D1SC with LQ9 6.0L heads, 224/228 581/588 114 lsa cam, and 4.10 gear.
What boost at 3000 rpm and 4000 rpm since those are the range I cruising around town?
Thanks so much in advance!
-Mike
I got D1SC with LQ9 6.0L heads, 224/228 581/588 114 lsa cam, and 4.10 gear.
What boost at 3000 rpm and 4000 rpm since those are the range I cruising around town?
Thanks so much in advance!
-Mike
#3
I don't know if this will help, but I have a 7.65 crank and a 3.2 BP on my LTX setup and I start making boost at 2400rpms.
Judging by that I am spinning the blower at 23.5 thousand rpms. So I am assume thats when a D1SC starts making boost, or on my setup anyways.
Judging by that I am spinning the blower at 23.5 thousand rpms. So I am assume thats when a D1SC starts making boost, or on my setup anyways.
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-Mike
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Is the Cubic make any diffrent with boost .. if the have supercharger D1SC with 350ci and its making 10 PSI and i change to 408ci it should make more boost or less boost or the same boost if am using the same pullys .
#12
The boost will go down, Jassim. The reason is you have more volume to fill. Bob
#13
How much boost the blower can produce depends on many variables.
* Cubic inch. The larger the engine the less boost it will make with a D-1SC.
* Headers and exhaust. A better flowing system will produce less boost, requires a smaller pulley to regain the loss in boost. Ultimately though, more power will be gained.
* Camshaft and heads. A camshaft with some overlap will leak out some boost through the valves. Better flowing heads react a lot like a better flowing exhaust system.
* Altitude. Elevation plays a big part in how much boost is produced. Those people living in the higher elevations have to spin the blower harder to see boost.
* Condition of engine. An engine with real good sealing rings will ultimately produce more boost than one with worn rings.
* Rpm. An engine that is spun up higher in the rpm range will normally produce more boost. Bob
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I have an opportunity to pick up a 418 9:1 motor, will that be too big for my D1SC? If I can get it to run as well or a little stronger as my cam only 346 did at 7psi I'll be happy.
#18
I have an opportunity to pick up a 418 9:1 motor, will that be too big for my D1SC? If I can get it to run as well or a little stronger as my cam only 346 did at 7psi I'll be happy.
I'd take a motor that made 10lbs=700hp, then one that did 20lbs=700hp.
#20