Sounds like a good target to me. if you can keep up with the winners, you're doing good..
Sounds like a good target to me. if you can keep up with the winners, you're doing good..
Houston Region
STU Nissan 240SX
EProd RX7
my napkin math has it at 9-10#/hp. supposedly they are using "power numbers" in STO - something like HP*Tq/2. maybe the same in STU, so classifications might see more hp/# in the lower displacements and less in the higher. as it is, they need time for the class to developed and then for data to be collected. it's kind of a big "?"
build one. I am.
Since STU is an engine-centric class, there's not a direct horsepower-to-weight target, it's a displacement-to-weight target. The target range in STU - just a target, mind you, not an end-all, be-all guaranteed goal - is 120hp/liter.
Since the STCS-published minimum weight is 1.1 pounds per cc displacement, one can thus infer:
120hp/liter x 1 liter/1000cc x cc/1.1# = .109 hp/#, or 9.17 #/hp
PLEASE NOTE: "Target range". Not a guaranteed end result.
Also don't forget that the RealTime-prepped WC car now has to add 5% to its weight.
GA
With the new rules, my car will be running very close to 9.9 lbs per whp. If that is the target the additional 5% really is working and I don't need to loose as much weight this winter, .
The buzz seems to have died down, so the new rules must be close to acceptable for everyone. Great job!
Eric
I still have no idea why we would create such a list of "off the chart exceptions" in STU. Why would a 3.2 liter BMW built to STU specs only weigh 3200 lbs. A 3 liter "ANYTHING ELSE" would weigh 3300lbs. I wont even begin to address the inconsistency suggested by the ridiculously low Detroit Iron weights listed.
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