PD Supercharger Cam
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Teching In
Joined: Feb 2025
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PD Supercharger Cam Hello, I have stock bottom LS1, LS6 heads, a MP112 supercharger (Magnacharger), intake/headers/etc, a Lingenfelter GT12 cam. I am replacing the crank pulley, so I wanted to check if it made sense to upgrade the cam without removing the heads (spring upgrade but not porting). I was wondering if anyone knew how the BTR below compare but am also open to other suggestions. I should be at ~600whp/~550wtq so I wanted to see if I could gain >20whp, to make it worth the cost/effort, or if the GT12 was "good enough". Thanks!
Lingenfelter GT12 (baseline)
227/235 @ 0.05 lift, 0.614/0.621 lift, 115 LSA
BTR PDS Stage 3
226/25x @ 0.05 lift, 0.636/0.636 lift, 112.5 LSA
BTR PDS Stage 4
229/25x @ 0.05 lift, 0.636/0.636 lift, 116 LSA
Lingenfelter GT12 (baseline)
227/235 @ 0.05 lift, 0.614/0.621 lift, 115 LSA
BTR PDS Stage 3
226/25x @ 0.05 lift, 0.636/0.636 lift, 112.5 LSA
BTR PDS Stage 4
229/25x @ 0.05 lift, 0.636/0.636 lift, 116 LSA
I currently run the BTR Stage 2 PDS cam on my stock headed LS1 with a TVS2300 and a 103TB. I feel like it's a lot of cam for that engine IMO. I actually had to fly cut my pistons because the PTV was very tight. If I could do it over I would have went with the stage 1 PDS.
Thread Starter
Teching In
Joined: Feb 2025
Posts: 2
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I am surprised that the PDS stage 2 is that tight, because looking at the stat line I thought it looked pretty similar to the LPE GT12. If a mild step up from the GT12 to the PDS2 requires fly cutting, then I will probably just leave the cam as is for now. Thanks for the input.
BTR PDS Stage 2
221/24x, 0.619/0.617, 113LSA
BTR PDS Stage 2
221/24x, 0.619/0.617, 113LSA
I am surprised that the PDS stage 2 is that tight, because looking at the stat line I thought it looked pretty similar to the LPE GT12. If a mild step up from the GT12 to the PDS2 requires fly cutting, then I will probably just leave the cam as is for now. Thanks for the input.
BTR PDS Stage 2
221/24x, 0.619/0.617, 113LSA
BTR PDS Stage 2
221/24x, 0.619/0.617, 113LSA
