Thread: Lt4 blower swap
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Old 01-19-2020, 01:42 PM   #32
oldman


 
Drives: SS 6 speed of course
Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,137
Intake duration directly increases power period 189 duration is just TOO small. exhaust duration indirectly increases power by reducing pumping losses.

Look at the smallest cam Cam Motion makes for the PD: 220 /236
"to be used in completely stock vehicles"
That is an intake change of 31 degrees and an exhaust change of 13.

Somebody has Camdoctor and can give a figure on how much a LT1 cam add in HP or not. IMO the LT1 cam produces more HP i.e. the ingestion of more intake charge. Would be interesting to find out...

Since there is so little here on either cam, I consider this angles dancing on pins. I am NOT saying the LT1 is an optimal supercharger cam, obviously it is a NA cam.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

Last edited by oldman; 01-19-2020 at 02:19 PM.
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