There r a few A series experts here, Simon especially in boosted A series, record holder at some tracks along with another 2 Finns that have world records with A series turbo engines, but as far as the help you are going to get to do it right for a very reasonable price you cant go wrong with his wisdom and enthusiasm.

Ive had ideas & problems that Simon has just clarified/solved instantly when put to him & cannot thank him enough for his tweaks on my projects. There arent many people that do that these days he is methodical & honest.

Nothing new about an LZET, Andrew Morrow, Ryan Dickson and others run them with FCW L cranks At the time I was after no pollution, easy 5 speeds, low height & crossflow head for a little more room side to side. Nothing too out of the ordinary I thought. HOWEVER as soon as Simon stepped up proving an A12 can be an incredible force when done properly (few have done proper turbo A series turbos) as he has but keeping most of it stock my LZet plans went totally south, I felt like the answer was staring at me the whole time... cheap, light, reliable and powerful. I was even considering a twin cam A series after seen his side project but what he managed from a stocker blew most of us away even surely himself must have been a little chuffed on how well it performed, there where disbelievers at that stage but I remember lifting the lil A12 into his bay & witnessing the build before going in. Cheap and stock inside but externally purposeful he calculated most of it with lots of research and plenty of sweat.

The A12 efi turbo is a better bet in costs and weight while the LZet will be heavier needs new mounts crossmember mods along with time spent lining it all up which is no mean feat unless you get mates rates which Simon charges anyway yet still alot of work and messing around to get it all right.

For 150hp atw for under 5k efi A12 turbo is the winner no questions about it. Replace the stock A12 for another donk like the L series, CA or SR its another ball game & unless you can do some yourself will cost more than 5 grand.

DatsunBloke why sheepishly bleat your try hard big port 4age stereotype spasm? Your backdoor effort ended up for sale un-engineered. Good intended Clubs want less of that butch short sighted mentality just decent car enthusiasts.