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Old 07-01-2009, 06:08 AM
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Default 75-79 X- Body -[9C1 police handling pkg]- questions

I’m thinking about another dirt-cheap to build autocross project car. I have the idea of duplicating a 9C1 police Nova handling package for a 75-79 GM X-body and possibly making some additional improvements as well. I read where it would corner with .89 Gs and stop with just over 1 G.

From what I have read, some of the 9C1 pkg was simply stock Z28 Camaro parts – as in: Steering box (– or steering gears in the Nova box), Z28 front sway bar.

Were the brakes from the Impala?
Was it a 5 on 5 or a 5 on 4 ¾ bolt pattern?
Was it a 10 bolt or 12 bolt rear end?
What was the gear ratio?
What were the front springs from?
Does anyone know the complete parts list (and donor vehicles)?
What about front and rear sway bar diameter and spring rates?
Did the shocks have a 50/50 ratio?
Was this pkg available for order on a 2 door model?
What radiator was used in the heavy duty cooling?

Has anyone worked out a better salvage yard swap suspension upgrade for the Nova?

I understand that better balanced components may be available from the aftermarket- but this would be a zero budget salvage yard build. The only thing I would want from the aftermarket would be shocks and bushings.

Who has 50/50 ratio sport shocks for it? ~ KYB Maybe?

I prefer 5 on 4 ¾ bolt pattern, but could live with the 5 on 5 if that is the only way to go 12” or bigger on the brakes. I would be more open to a compatible brake swap than a spindle swap because I do not want to throw the geometry out anymore than it will by lowering the car 1” or 2” Can a C3, C4, or C5 brake setup be swapped onto the Nova spindle?
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The Cadinator: 82 Eldorado, Caddy 472 (535 Lbs. Torque @ 3000 RPM) Autocross suspension, 95 Trans Am wheels.

Battlecar Cadillactica: 70 Eldorado w/stock Caddy 500(550 lbs. torque @ 3200 RPM) Known for beating Trans Ams, Camaros & Mustangs in 1985/86 Fayetteville Arkansas SCCA autocross

CadVetteStang: 72 Fastback Mustang w/500 Caddy engine, TH400, 12” disc brakes & 9” rear end. Was in storage awaiting a C4 Corvette front suspension when sold by [former] friend.

Last edited by CadVetteStang; 07-01-2009 at 06:30 AM. Reason: adding info
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