New Race engine build
Posted: Thu May 16, 2019 11:12 am
The engine I swapped out a year ago has finally made it onto the engine stand for a rebuild. I always love pulling the sump off a race engine - nice steel caps, Carrillo rods and Datsun crank
Bottom end will be a bearing check and replacement if needed and replacement of the front timing chain cover which has a crack in it plus routine replacement of seals and check of other components
Need to decide whether I clean up the current head or swap the head for the spare McCoy conversion race head shown sitting on my bench . I will be rebuilding for using 98 Octane premium unleaded the same as the current race engine in the car versus Avgas that this engine was previously built for. i will use the head which gives me the needed 11 to 11.5 comp ratio the easiest, current head and pistons in this engine give me around 12.5 to 1
End result will be like the current engine in the Elan at around !80 hp at 7500 to 8500 rpm. Always nice to have a spare ready to swap in if needed. Hopefully I will not need it for a few years yet as I aim for 4+ years from a race engine and current engine has only been in the car for 1 1/2 years
cheers
Rohan
Bottom end will be a bearing check and replacement if needed and replacement of the front timing chain cover which has a crack in it plus routine replacement of seals and check of other components
Need to decide whether I clean up the current head or swap the head for the spare McCoy conversion race head shown sitting on my bench . I will be rebuilding for using 98 Octane premium unleaded the same as the current race engine in the car versus Avgas that this engine was previously built for. i will use the head which gives me the needed 11 to 11.5 comp ratio the easiest, current head and pistons in this engine give me around 12.5 to 1
End result will be like the current engine in the Elan at around !80 hp at 7500 to 8500 rpm. Always nice to have a spare ready to swap in if needed. Hopefully I will not need it for a few years yet as I aim for 4+ years from a race engine and current engine has only been in the car for 1 1/2 years
cheers
Rohan