I am the engine modder yes..... I also know Robin well, we talk from time to time........ The Nova's are nice engines, but they are far too smooth for my tastes... None of them have anywhere near enough bottom end for me.... I am more into engine that have some bite to them, and to date I have not seen a stock Nova that I would even raise an eyebrow over in terms of power.... Yes they are a quality well built engine, however I could care less if the engine is boring and flat......... The Werk's engine has fantastic build quality, fit and finish...it has a very punchy powerband and is extremely easy to tune, likely the easiest to tune race engine I have ever run....Its actually unbelievable how good the engine tunes...Even modded up to make big HP the engine is so simple to tune a caveman can do it......... IMHO the Nova's seem to be tuned more towards big open sweeping tracks with low grip as they do have great top end for the most part, but really lack that low end punch that I am used to.... on a high grip track with big short run up jumps a Nova would be the last engine I would look at.....On a big open Euro track they would be great, but for me they are way too soft for our style of tracks....... If your an expert driver that can carry high corner speeds you wont notice the soft bottom much, but if your like me , you need to have a strong bottom end punch to clear the jumps as I don't have the driving skill to carry corner speed like the pro's....The Werk's will clear any jump any time with next to zero run up, it has such a strong crisp low end that it allows you to slow down and square up a jump without the fear of landing short, in fact with this engine your more then likely to overshoot if anything..... Slow down and square up a big jump with a soft bottom end and you will have zero chance of clearing the jump...... A pro can make a soft engine look amazing on the track, however the average Joe is just going to come up short with a soft engine