Unique Motorsports

Tag: RSLRA

Impreza RSLRA Gets A New Race Friendly Core Support

by on Sep.19, 2009, under Installs

What is a race friendly core support anyway? Well, I’m not really sure. What I do know is if you want to run a V Mount intercooler and radiator setup then you are going to need some room. The stock bumper beam, upper core support, and lower brace just don’t allow the freedom one needs to run enough radiator or intercooler. As for the bumper, well it was only attached by the sides so we decided to make some more room, make it stronger, and add lightness.

This project actually started a few nights ago. We laid out some general plans based on what it was we were trying to achieve. Intercooler and radiator fitment allow for easy to service and maximum cooling. We also didn’t want to lose any chassis rigidity. When considering chassis mods take into account the actual forces being applied otherwise you might be adding strength and weight with no real benefit. Despite my wifes beliefs about my memory abilities, I was able to reach in and pull some helpful ques from my past.

Corolla lovers, the RWD type from the 80′s, not the newer corollas of today, are big on hanging on to that front bumper or even replacing it with something better to aid in chassis strength. Perhaps it’s an attempt to bring out the inner Takumi or delivery driver, but I just don’t think anyone would have one of these tossable cars and not drive it. They know about chassis torsional flex and do a lot to avoid it. That’s a lot of words to say, we need to keep the strength in the lower bar. To improve on it even more, I pulled a que from Lou, former host of Muscle Car. Well he too was a stickler for chassis rigidity which resulted in chassis tricks for all sorts of unibody and frame based cars. He would basically trim out enough of a factoy connection and place strong tubing or box in key flex areas. I also thought back to a Trucks episode where they shortened a frame and rather than cut it straight, they cut down then over then down again to maximize te welding area. Whoever said you can’t learn something by watching tv?

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