Howdy y'all I saw some old threads about the 3.3L engine swap I did some research and I can get this engine from hyundai sonata 2006 and I have a Hyundai Tiburon 2007 is it true that's it's a direct drop in ?
No, a 3.3/3.5/3.8 Lambda will not be a drop in swap. Where did you hear that from? There is no direct drop in swap for our cars. However, there are some engines that will bolt up to our V6 6 Speed transmissions but need fabrication to fit and a tuning solution due to some differences. For example, the following engines will bolt up to our trans:
Hyundai Sigma 3.0/3.5L (AKA Mitsubishi 6G74)
Mitsubishi 3.8L 6G75 (Taller deck, stroked version of the 6G74 with MIVEC)
The engine mounts need fabrication. The passenger side axles need fabrication. You need a tuning solution because the crank angle sensor is mounted at a different angle than the Delta 2.7L so it will throw your ignition timing way off unless you can compensate for that by modifying your ECM's ignition tables. No open source tuning solution exists yet for our OEM ECM so that's already a challenge in of itself. The aftermarket support is just as bad on the Sigma motor as it is for the Delta motor so many would argue it's not a worthy swap for the added weight and minimal HP gains.
Back to the Lambda motors... They do not bolt up to our transmissions. It is rumored that the Lambda motor was swapped using the automatic transmission from a minivan into a Tiburon in South Korea. Requires a lot of fabrication and no information exists in English so it's not recommended. Also I believe all the Lambda motors are direct injected which adds another tuning challenge to your swap.