CLASS RACER FORUM - stock classification

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Re: stock classification

Dwight-- Yes how viable is that combo??? FED387

Re: stock classification

It wouldn't be one of my choices. It has small valves (1.72 & 1.5), pushrods and blueprinted compression is only around 8.5 to 1. Out of all the 151 combinations, it seems to have the best specs. Is it a multi-port injection? I'm not all that familiar with those engines, but a power to displacement ratio of close to .8 (120/151) requires that it be a stellar performer. That alone would make it hard to perform against other possibilities in those classes.

Re: stock classification

OK using the same 82 Camaro what other competitive classes are there maybe a v-6???

Re: stock classification

Quote:

Originally Posted by Dwight Southerland (Post 129284)

What it seems is confusing you is the additional 170 lbs. added in for the driver. Here is how that works:

For classification purposes only, the shipping weight of the car as supplied by the manufacturer (in this case 2770 lbs) is divided by the power factor (120) to get the power to weight factor (23.04). The power to weight factor and, in this case the engine type (4 cyl), determines the classification. Since there is no 23 lb/hp class, you can adjust weight to make either V (22 lb/hp) or W (24 lb/hp) .

For actual race weight, the tech guys will calculate the class factor for V (22) or W (24) times the power factor (120) to get the minimum weight for the class. 22 x 120 = 2640 for V, or 24 x 120 = 2880 for W. Then they will add 170 for the driver and the total is the amount the car must weigh when it goes across the scales with the driver in it . For a V car, 2640 + 170 = 2810 lbs; for a W car, 2880 + 170 = 3050 lbs. It does not matter that the driver actually weighs 170 lbs, just that the scale weight is correct with the driver in the car.

I am assuming you are looking at a 1982 Camaro with the 151 4-cylinder factory rated at 90 hp and NHRA factored at 120.

so, i'm MY case the car itself can be 50#s light?
l weigh in at 230, uh, ish.....

Re: stock classification

Quote:

Originally Posted by FED 387 (Post 129352)

OK using the same 82 Camaro what other competitive classes are there maybe a v-6???

The V-6 combo holds the current V/SA record. Still I'd rather have a 231 buick 2 bbl @130 hp or a 2300 Ford Turbo.
The 151 in the Camaro is TBI......... Hp is too high . Wouldn't you rather have a 196 (3.0) Buick V 6 at 115 hp in a Monza?

Re: stock classification

Quote:

Originally Posted by tomslik (Post 129355)

so, i'm MY case the car itself can be 50#s light?
l weigh in at 230, uh, ish.....

Are you sure you can fit in that Rambler??

Re: stock classification

Dwight/Alan----I understand now and then you go to the technical area to find out what head/intake/carb etc is allowed correct??? Thanx fed387

Re: stock classification

Quote:

Originally Posted by FED 387 (Post 129434)

Dwight/Alan----I understand now and then you go to the technical area to find out what head/intake/carb etc is allowed correct??? Thanx fed387

That is in the Engine Blueprint Guide. Cam lift and valve sizes are there as well. There is also a piston guide and a connecting rod guide.

Re: stock classification

Dwight/Alan--- OK I understand the whole thing now--Now I have a clean 1982 Camaro Factory 4 cylinder /auto trans car----PLAIN JANE kinda car no air/windows etc... Decent shape in/out gotta be light I'm sure--I understand you can change these around to different years by changing front fascia/grill and taillights---with a V-6 OR 305 4bbl carb motor what class do I want to run with what factored engine and what year---not looking to set the record but dont want to look like a complete a--hole out there either---want to run a bit under the index first time out-then will work on the combo to be quicker-thanx fed387