Back in the 60's, (when I was very young), we used to read about racing mini-coopers in the UK. They all had the same engine, but some guys were getting more out of them with "tuning". Turns out the winning drivers were cutting the tranny grease volume in half, and using lighter weight lube, plus they reduced the crankcase lube quantity by 50%. Gave them enough more HP that they won races After all, the engine only has to last one race!
I've got an acquaintance who races a VW Golf in the SCCA seniors circuit. He has two engines, swaps them out between races, and does a complete teardown after each race. I've seen him do this in an afternoon, changing out the camshaft with a high-lift version to shift the torque curve for a particular track. And that's a low-budget, one man "team".
The competitive edge in Indy Car racing has gotten so small due to regulation, that the difference between first and second place may be little more than a few milliseconds.
It absolutely amazes me as to the technological extremes that are available today. I also wonder how much of it still takes human instinct and where the lines are drawn. I remember watching Space Cowboys and Clint Eastwood's team was in the shuttle simulator. The young pups in the simulator with them always flew by computer control and told the old experienced pilot that there was no way he could manually land the shuttle in the current simulation they were running. Of course the old guy flipped over from auto-pilot to manual and proved them wrong. On the other hand, the importance of simulation came through loud and clear in Apollo 13 when they were trying to solve a power consumption problem that Apollo 13 was facing as it approached re-entry. It is really interesting what is available to these Indy teams and speaks of humanity's determination to progress and not be limited by finite human ability.
What I find amazing is the technical equivalency of these cars. One tiny difference here and there in the performance of the Indy cars can mean the difference of a handful of seconds in the progress through 500 miles. And that's all the driver needs, just a few seconds of advantage. Amazing.
Beth, I was wondering that as well. My experience, though, is that it takes time and effeort to set up the simulations, even with a very good package. I have run into organizations that still use their own in-house developed simulations. They have confidence in them and have used them for a long time. It seems there would be great risk in this, but they are unwilling to move to the established tools.
In racing, it takes time to model both the track and the vehicle. Think of all the modeling one would have to do make this work. So, I can see how the teams use the machines they do. They can get high fidelity results very quickly. Thcy can also make "real" changes quickly. This hybrid approach seems to work better in the tight deadline world of racing.
Amazing that tweaking lubricants or modifying a damper can have such a huge impact on performance. It struck me that the teams use actual hardware machines to do some of the track simulation given that I live in a world where everyone talks about virtual simulation. Any sense of whether CAE is employed in any of their mechanical finetuning?
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