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Brian Tooley Racing Camshaft - LS - Twin Turbo Stage 3 - 33143155 cam: specs, price & owner results
231/243 .618"/.617" 115+5
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| Spec | Value |
|---|---|
| Part number | BTR-33143155R1 |
| Engine | Gen III/Gen IV LS |
| Application | TWIN TURBOCHARGED |
| Style | HYDRAULIC ROLLER |
| Cam bolt | THREE BOLT |
| Duration @ .050 (int/exh) | 231 / 243 |
| Lift (int/exh) | .618 / .617 |
| LSA | 115.0 |
| Advance | 5.0 |
| Turbo/boost | 58-65mm turbo |
| Price | $249 (Brian Tooley Racing, 2026-09-29) |
| Status | Discontinued |
Check current price at Brian Tooley Racing
Tuning checklist
- Tune: Aftermarket cams need idle, fuel, spark and torque-model changes.
- Cam gear: Three bolt
What owners report with this cam
Owner-reported numbers from public forum threads — exploratory, not verified. Dynos, heads, supporting mods and tunes differ; use these as a rough range, not a promise.
1reports
| Engine | Heads | HP | TQ | Measured at | Adder | Confidence | Thread |
|---|---|---|---|---|---|---|---|
| LS 408ci (LQ9 block, K1 crank/rods, Arias pistons, ARP mains, CA625 head studs, LS9 gaskets, ATI balancer, C5R chain, Melling pump; built by BTR) | Trick Flow 220 (Fast As Cast) | 1000 | Wheel | twin turbo (VSR 73G42 ball bearing 73mm; later Precision Gen2 7675 ball bearing) | High | forabodiesonly.com |
Sources
- DOD, AFM, And DFM Deletes: A Q&A With Michigan Motorsports — LSX Magazine