I have a TB45 in my GQ. I've thrown lots of dollars at the engine and the results aren't as good as I would expect.
Rebuilt head with all new components and ported. Compression increased. Bottom end balanced and lightened. Straight gas with XF throttle body and Impco 425. Lots of other good gear also.
It goes nearly as well as my mates GU TB48. Still heaps better than the standard TB42 tho and no risk of a cracked head.
If I had my time again I would have used a BA falcon 6 or a turbo on the TB45.
Rebuilt head with all new components and ported. Compression increased. Bottom end balanced and lightened. Straight gas with XF throttle body and Impco 425. Lots of other good gear also.
It goes nearly as well as my mates GU TB48. Still heaps better than the standard TB42 tho and no risk of a cracked head.
If I had my time again I would have used a BA falcon 6 or a turbo on the TB45.
