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Author Topic:   70 impala
TBROOKS
Dirt Roller

Total posts: 14
posted July 31, 2005 10:04 PM  
any one out thre ever ran a big car like a 1970 impala? i ran modified fours for 7 years, and super late models for 2 yrs. then had major cancer and have been out of racing for ten yrs. now my son wants to race so we are building this impala. any help on setups?we run a 1/3 mile high bank at atomic speedway in tennessee. im lost on these type cars.

[This message has been edited by TBROOKS (edited July 31, 2005).]

WesternAuto17
Dirt Forum Champ
Total posts: 569
posted August 01, 2005 08:36 AM  
I think I'd sell that '70 Impala to one of those nut ball demo-derby drivers (I can say that, I am one). You'd be able to pick up 2 metric cars with cash left over for what you could get for a derby car like that.

Parts for cars that old are getting harder to find every day, but the Monte/Regal/Cutlass parts are everywhere.

hotrodenford
Dirt Full Roller

Total posts: 60
posted August 01, 2005 09:57 AM  
We run a '77 t-bird. pritty close to the same size. Just make shure to move the driver and cage as back as far as posable. its already a heavy car so you don't want to have to add weight. The best part is that those little metrics that we run with can't push us around. If rules alow, be shure to run a 400 for the torque to move that big of a car. I would stay different and keep the impala.

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If it has wheels or a skirt, you can't afford it! But they shure are fun...

teamstertom
Dirt Maniac

Total posts: 149
posted August 01, 2005 07:38 PM  
I ran Impalas for years. Big Car,but done right work very well. Front springs were 900#lf and 1100rf....rear springs 200/225. I ran a 355 small block with a Turbo 350 in second gear with 4:10 gears. The 10 bolt is a weak area,but with a posi track,fresh bearings and seals,it will last the season. I did overfill it a bit to ensure gear lube got over on the right side.
A couple of buddies ran Big Blocks with the Turbo 350 in second gear with 3:90 gears.

Heavy car,but with the rules for the class,you will be able to see areas to reduce the weight. Scaling the car when complete will ensure your weight is where you need it.

I would suggest looking for a 78 or newer Impala...these rides are ideal race cars.
But......My street stock is a 73 Monte...yet to be finished because of time.....big fan of the Big Cars......

teamstertom
Dirt Maniac

Total posts: 149
posted August 01, 2005 07:57 PM  

 
Here is the Impala I ran a few years back.

powerglides
Dirt Freak

Total posts: 374
posted August 02, 2005 09:17 AM  
Take a GOOD look at your rules and build accordingly. If you are allowed 108 wheelbase shorten it to 108. etc. etc. etc.

TBROOKS
Dirt Roller

Total posts: 14
posted August 02, 2005 12:41 PM  
thats a nice car, thanks for the input we may go ahead with it as planned, my only real worry is my son has never been on a track before. but he wants to be like his ol man i guess. (god help him) ha-ha


teamstertom
Dirt Maniac

Total posts: 149
posted August 02, 2005 08:57 PM  

 
One problem area foe these older Impalas and Montes are the rear control arms (upper and lower where they come into the frame. Look at this area very well,repair and strengthen where needed. I have seen many lower cntrol arms pull out the mounting braket......when that happens....it's a mess to repair. Here's picture of my last Monte.....another in the race shop......just gotta love'em.

Adamant
Dirt Newbie

Total posts: 1
posted August 03, 2005 05:15 PM  
quote:
Originally posted by teamstertom:
Here is the Impala I ran a few years back.

That is a good looking car. How did it fare against smaller cars (Nova, Monte Carlo, etc.)?

teamstertom
Dirt Maniac

Total posts: 149
posted August 03, 2005 05:48 PM  
This class had rules based on the long wheelbase cars.....Cars that ran in the class were the Impalas,Grand Prix's,Big Caddys,Delta 88's and so on. Many ran Big Blocks as the Olds had 455's,which were major torque motors,or the 454's in the Chevy's.

The class orginally started out to be a low dollar entry level street stock class and it got way out of hand at the end with a person's own understanding of the rules. That's when I called it quits.....until now. I have a big Monte under construction in the shop to run a street stock class with defined rules that also allow the metrics to run along,which rule the class. That Silver Impala finished 3rd that year in points with a 355 small block....the two above had Big Blocks,the 3 below had Big Blocks.............

    

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