Lightest engine and gearbox options

[deezee]

Originally Posted by Bimbleuk

The MR2 mk1 had the 1.6 16V 4AGZE which was supercharded and iron/ally. Don't bother its old tech and very heavy.......

However you will still be hard pressed to beat the Rover K series engines for lightness.

I can appreciate that its not the most advanced engine out there, but half the "engineering" on new engines is for emissions, which hardly matters to home made sports cars. Also, like I've mentioned before, surely bhp/tonne is the figure that important here and the 4AGZE is well over 50 bhp/tonne better than the K series

Besides, don't you have a Toyota engine in your car

[Bimbleuk]

Originally Posted by deezee

Besides, don't you have a Toyota engine in your car

Yes have I been busted? I'm a Toyota fanatic I suppose and bought a 4GZE for the short block recently as the bottom end is stronger. I was just looking at it at the weekend (trying to get inspired to pull it apart) and all bracketry is thick cast iron and thankfully most of it holding on the power steering, aircon etc so can be junked.

To be fair you can simply slap on a bigger crank pulley to the 4AGZE to increase it to 180BHP with decent torque.