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Old 04-06-2010, 10:45 AM   #21
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Please accept this as "constructive" criticism. I think its very hard putting together a dual purpose track car and daily driver. You have to accept that it will be a compromise at best.

For example, brakes that work well on the track are rarely very good for the street. Hawk HP's are decent for lapping (I would want something much better for all out racing)but their initial bite on a cool morning on the way to work can be flat out scary in a panic stop. Trying to find a performance brake with a really wide temperature operating range (very low/very high) would be the ideal, but admittedly is hard to come by although not impossible and will be expensive when you do find them.

Regarding suspension, we all know that stiffer springs are the key to a good track car. Its not unusual to see 500 to 700 lb/in springs and sometimes more on a serious track based car. You also need some serious shocks to dampen them like Penske's, Koni race series, etc. Naturally these spring rates and shocks would be unacceptable for a DD. So once again a compromise is necessary. The downside to the FRPP springs as I see it is that no one knows the spring rates, or if they do, it's not shared with us mortals. If you're into Spec Focus racing then that's fine as it's more or less an equal playing field. In reality, I bet they are too soft. For a dual purpose car, Koni Sports and H&R race springs may be a better compromise. The adjustable shock in this case can go a long ways in improving the dual purpose being sought.

As for dumb as it sounds, it makes far more economic sense to have a set for the street and another set for the track. Full tread depth street tires will eventually rip themselves to pieces (chunk) on the track. That makes the tire unusable for the street and track. A "shaved" tire will actually last much longer on a track, but then again, it makes a lousy alternative for the street. I believe a set of used race tires is actually better than using a set of really expensive full depth street tires from both an economic and performance standpoint. In summary, there really isn't any cheap way of having a "good" track "and" street car. If it were me, I'd allocate my budget on tires first, brakes second, and suspension third.
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