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Volkswagen BGP/BGQ/CBTA/CCCA specs: 2.5L (151 ci) 5-cylinder, 82.5 x 92.8 mm (3.2480 x 3.6535 in) bore and stroke, 9.5:1 compression. Rated 150-170 hp.
The Volkswagen BGP/BGQ/CBTA/CCCA is undersquare — the 3.6535" stroke exceeds the 3.248" bore by 11.1% — a layout that trades peak RPM for leverage and torque low in the range. The 3.6535" stroke puts mean piston speed at 4,000 ft/min around 6,550 RPM, which is where a production bottom end is generally considered at its limit. Each of the 5 cylinders displaces 30.2 ci (495 cc).
9.5:1 is in the range that usually runs on pump premium.
It is one of 4 engines in the Volkswagen 153ci family, all of them 151 ci — the differences between them are in compression, heads and rating, not displacement. 6 factory variants share these dimensions, rated from 150 to 170 hp across 2005–2010.
| Displacement | 151 ci / 2.5 L |
|---|---|
| Bore | 3.248" |
| Stroke | 3.6535" |
| Cylinders | 5 |
| Compression ratio | 9.5:1 * |
| Bore/stroke ratio | 0.889 |
* Compression ratio from a single source; not yet cross-verified.
| Fuel type | gas |
|---|---|
| Advertised HP | 150–170 hp |
| Years | 2005–2010 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2005 | BGP/BGQ net | 150 | — | — |
| 2006 | BGP/BGQ net | 150 | — | — |
| 2007 | BGP/BGQ net | 150 | — | — |
Factory specification sheet.
| Bore/stroke character | 0.889 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,654 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 30.2 ci |
| Static compression | 9.5:1 — in the range that usually runs on pump premium |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 2005 | 150 hp | BGP/BGQ/CBTA/CCCA |
| 2006 | 150 hp | BGP/BGQ/CBTA/CCCA |
| 2007 | 150 hp | BGP/BGQ/CBTA/CCCA |
| 2008 | 170 hp | BGP/BGQ/CBTA/CCCA |
| 2009 | 170 hp | BGP/BGQ/CBTA/CCCA |
| 2010 | 170 hp | BGP/BGQ/CBTA/CCCA |
3 factory vehicles, 2005–2014. Each year opens that model's engine table.