Remember this install? The Nagisa auto brace:
While I was able to feel a difference immediately, I assumed that this type of brace was used only on older cars that were probably designed before automakers had access to supercomputers and hence could be improved upon with a simple bolt on. But look at this, which I recently found in a current model year catalog for the Lexus GS cars:
Yes that’s right – an almost identical brace, in the same location! Presumably, supercomputers also agree that an efficient way to improve body rigidity even in today’s cars is by way of this type of bolt on brace. Amazing.
Going even further back – I had installed these underfloor aerodynamic devices
Daytona Ground Effectors. As I recall the car felt slightly more planted with them installed. Unfortunately with the addition of some underfloor Nismo bracing, these Effectors had to be removed as they used the same mounting points, but I continued to wonder what could be done to help airflow under the car.
Looking at this photo – taken from the same Lexus catalog as the photo above – shows that modern cars also use under chassis aerodynamic tweaks in order to improve airflow. Interesting. I’m sure that Toyota spent lots of money and lots of wind tunnel time to perfect these under chassis bits, making them minimally intrusive while maximally effective. As I obviously I can’t replicate this on my car (unless someone wants to lend me a wind tunnel and a computer or two), I think the Ground Effectors may be the most cost effective way to go. So, I may have to rethink about their placement under my car.
Finally, I’m happy to report that I was finally able to take the car out for a full blast run, including a quick high speed run on the expressway, to test out the full breadth of the Okada Plasma Directs.
In a word, awesome. There is definitely a difference in how the car accelerates. Yes there is more power off the line, and also the engine revs up more smoothly and there seems to be more torque throughout the entire RPM range. Not only could I tell there was a difference, it was enough of a difference that the new found acceleration was addicting, I was lucky not to get a speeding ticket that night. Of course, part of the difference in engine performance might have come from the Tomei exhaust (which I uncorked) as well as the colder than usual air, but this would explain only part of the difference in response I think. So as I said before, a worthwhile addition, however get all of the other engine mods done first!
So what's next? Stay tuned...