Thread: Lt4 blower swap
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Old 01-19-2020, 02:42 PM   #32

Drives: SS 6 speed of course
Join Date: Jan 2016
Location: austin
Posts: 3,436
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.
2016 to 2017 Stage 1, FBO, ported MSD, 103 TB, E85

2018 Stage 2, P1C, 4.0 pulley, Pray ported heads, Pray stage 1 blower cam, TxSpeed valvetrain, Katech ported 87mm TB, ported MSD, 1 and 7/8 headers

2019 stage 3: Forged short block 11.5 CR, huge duration sub .600 lift Cam Motion cam, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, 2 BOVs, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0, CA-offroad pipe, 60609 Borla, Lingenfelter injectors, ZL1 driveshaft and half shafts, Katech ported TB,MSD intake, BTR valvetrain.

Last edited by oldman; 01-19-2020 at 03:19 PM.
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