Car classification ?

SStockDart · 06-14-2011, 01:51 PM

Hold on a second. OK, here is the senerio. You want to put a 1970 - 383 in a 1968 lightweight body. In the classification guide, the "lightweight" body is a Dart 2 door coupe. Not a 270, GT, or a GTS. Therefore, per the classification guide, the heaviest gasoline engine in the "2 door coupe" is the Race Hemi. The weight is 3,020 pounds. So, the 1970 383 is 304 HP. So, the factor is 9.93. That puts the car in GT/D. The minimum weight with the driver (to get to the bottom of the class), is then 3,058, rounded down to 3,055.

The shipping weight can be adusted up to 250 pounds to fit in a class. Using this senerio, the weight adjustment to fit in the class is 132 pounds, and perfectly legal. You could not get this combination into GT/C because that would be a 284 pound adjustment and over the 250 pound limit. This car could move down to GT/E. That is only a 20 pound adjustment.

Regarding lightweight components. The rules state: "Aluminum or other lightweight material may not be used to replace heavier items on car." No mention of replacing lightweight material with something heavier. Therefore, the literal interpretation is that is is legal to claim a 'lightweight' 1968 without having fiberglass fender, acid dipped doors and bumpers, and lightweight glass.

From a realistic perspective, if you want to run this car at the bottom of the class, you will probably need all of the lightweight "stuff". Hope this clears it up.

06-14-2011, 01:51 PM	#21
SStockDart VIP Member Join Date: Dec 2007 Location: Arizona, Texan forever Posts: 1,178 Likes: 880 Liked 574 Times in 212 Posts	Re: Car classification ? Hold on a second. OK, here is the senerio. You want to put a 1970 - 383 in a 1968 lightweight body. In the classification guide, the "lightweight" body is a Dart 2 door coupe. Not a 270, GT, or a GTS. Therefore, per the classification guide, the heaviest gasoline engine in the "2 door coupe" is the Race Hemi. The weight is 3,020 pounds. So, the 1970 383 is 304 HP. So, the factor is 9.93. That puts the car in GT/D. The minimum weight with the driver (to get to the bottom of the class), is then 3,058, rounded down to 3,055. The shipping weight can be adusted up to 250 pounds to fit in a class. Using this senerio, the weight adjustment to fit in the class is 132 pounds, and perfectly legal. You could not get this combination into GT/C because that would be a 284 pound adjustment and over the 250 pound limit. This car could move down to GT/E. That is only a 20 pound adjustment. Regarding lightweight components. The rules state: "Aluminum or other lightweight material may not be used to replace heavier items on car." No mention of replacing lightweight material with something heavier. Therefore, the literal interpretation is that is is legal to claim a 'lightweight' 1968 without having fiberglass fender, acid dipped doors and bumpers, and lightweight glass. From a realistic perspective, if you want to run this car at the bottom of the class, you will probably need all of the lightweight "stuff". Hope this clears it up.