Thanks for this. I didn't even know Lotus published software.

 

Have you used the Valve Train design software? Been looking at it but not sure the cost.

 

I did an engine simulation for a Ural-sidecar motorcycle. I am interested in how to increase the power of the engine with a different intake and exhaust system, with other intake and exhaust pipes. A year ago I made (calculated and made) a homemade air box with bells according to Gordon Blair's book "Design and Simulation of for-strore Engines". Mass air flow increased, I had to raise the needles on the carburetors. But the motorcycle began to consume less gasoline. Increased volumetric efficiency. For engine simulation I use empirical coefficients from Gordon Blair's book. I have an old-style engine, 666cc, bore/stroke 79/68. I also have a new 750cc engine bore/stroke 78/78 engine. I want to design a 2-in-1 exhaust manifold for a sidecar and make my own stainless steel manifold. I have a tig-welder and I can weld metal.You need to take a graph of valve lift / crankshaft angle yourself. 2 micrometric indicators on the valves and graduated (angular degrees) cardboard disk on the clutch flywheel. Turn the flywheel 2 turns (720 angular degrees) and record the readings of the micrometric indicators (intake and exhaust valve lift). But this new 750cc engine needs to be assembled, it is completely disassembled. This is not a problem for me, I am an excellent motorcycle mechanic.

 

Anyone built a file mimicking the Lotus 910 for this software yet?

 

Lotus engineering's engine simulation software, previously limited to a single cylinder engine, is now freeware for multiple cylinders.

Engineering Software - Lotus Cars

Computer simulation is a key part of the automotive development process. Lotus Engineering Software has been developed by automotive engineers, using them on

www.lotuscars.com

This is a dead link but the software can be found on this page. https://www.lotusengineering.com/engineering-software/

 

Old thread but does anyone have the install files for the various Lotus software? Noticed that the latest link is dead aswell.

Bjarne Cox

 

If you put the link Catsailr27 provided into the wayback machine and go back to 2021 it will let you download the last version they released

 

I'd also be really interested in getting hold of the files to have a play with this. I used it for a short period professionally about 20 years ago.

 

put the link into the wayback machine and it will let you download it. worked for me a few days ago

 

Is there some way we could get a hold of the source files? Some features like user defined subroutines are not available if we do not have the source files to modify and compile.

 

I would say no. This was posted in link above Following a detailed review and changes within Lotus Cars, from 01/11/2023 we will no longer offer sale and support of the Lotus Engineering Software products.