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Old 07-17-2018, 07:58 AM
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drag shocks

67 impala 496, drag shocks in front or not, street/strip car

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Old 07-17-2018, 09:46 AM
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I never tried it but they are called "Drag Shocks" for a reason.


454 RATTLER
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Old 07-17-2018, 12:31 PM
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As Rattler said, they used to be called 90-10 shocks also, which means the have 10% resistance going up, allowing for better weight transfer. Then 90% resistance coming down which holds the nose in the air till you're through the 1/4 mile. Not designed for the street in any way.
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Old 07-17-2018, 02:06 PM
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Might think about some 7/3's for street manners.
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Old 08-07-2018, 06:07 PM
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Competition Engineering has 3-way adjustable shocks in 90/10, 70,30 and 50/50. Part numbers are rear C2720 and front C2710 for your vehicle.
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Old 08-07-2018, 06:28 PM
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I've run 90/10 on the street for years, along with no front sway bar. Mid 11 second 1/4 mile street/strip car.

Car leans over like an ocean liner during cornering, but if you're more of a strip guy that a plain cruiser it doesn't really corner any worse, just feels like it is really going to lean over until the door handle scrapes
This was more the result of removing the front sway bar than it was the shocks valving.

This was with 3.5" wide front wheels, I was never trying to corner like I was racing Mario Andretti so it really wasn't a big issue. Never felt squirrelly or slipped or skid or even howled.

The 90/10's help keep the front end up for the first 60-100 feet, not the entire 1/4 mile like has been posted.
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Old 08-09-2018, 09:42 AM
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Quote:
Originally Posted by ericnova72 View Post
I've run 90/10 on the street for years, along with no front sway bar. Mid 11 second 1/4 mile street/strip car.

Car leans over like an ocean liner during cornering, but if you're more of a strip guy that a plain cruiser it doesn't really corner any worse, just feels like it is really going to lean over until the door handle scrapes
This was more the result of removing the front sway bar than it was the shocks valving.

This was with 3.5" wide front wheels, I was never trying to corner like I was racing Mario Andretti so it really wasn't a big issue. Never felt squirrelly or slipped or skid or even howled.

The 90/10's help keep the front end up for the first 60-100 feet, not the entire 1/4 mile like has been posted.
Depends on how soft of springs you have. I have the Moroso trick springs listed for my front end weight, and the Comp Engineering adjustable shocks set to 90:10. Sits normal to slightly low front height at rest, but you can raise the front end up against the stops if you foot brake even a little against the engine. Leaving from 1500 rpm, front end comes up and hits the stops, rear dead hooks, front wheels come off the ground for a bit, and front end stays up against the stops through the 1/4 mile. Front comes back down when I let off. I am careful to let it come back down before starting to brake. Definitely not for the street, but it was the springs that made the big difference. The 90:10 shocks didn't do much with the original springs.


My wife like to tell the story about my first 1/4 mile pass after installing the springs. I came back all excited and said "That was ******* dangerous!" So she said "Now what? - go home?" I told her "naw, Go again!" I got used to it.

Last edited by 2001Blazer4x4; 08-09-2018 at 09:52 AM.
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Old 08-09-2018, 02:58 PM
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Quote:
Originally Posted by 2001Blazer4x4 View Post
Depends on how soft of springs you have. I have the Moroso trick springs listed for my front end weight, and the Comp Engineering adjustable shocks set to 90:10. Sits normal to slightly low front height at rest, but you can raise the front end up against the stops if you foot brake even a little against the engine. Leaving from 1500 rpm, front end comes up and hits the stops, rear dead hooks, front wheels come off the ground for a bit, and front end stays up against the stops through the 1/4 mile. Front comes back down when I let off. I am careful to let it come back down before starting to brake. Definitely not for the street, but it was the springs that made the big difference. The 90:10 shocks didn't do much with the original springs.


My wife like to tell the story about my first 1/4 mile pass after installing the springs. I came back all excited and said "That was ******* dangerous!" So she said "Now what? - go home?" I told her "naw, Go again!" I got used to it.
A lot of my experience was similar. Foot braking lifts the front a touch, foot to floor launch pulls front up against the upper stops, which have been trimmed to 1/2 their original height for more front lift travel. Car hooks, lifts the front tires tires a couple of inches....but by the time I'm midway through second gear the front was back down to just a little above normal ride height, with just the twist of acceleration keeping the front lifted a slight amount.
I am using the stock 45 year old front small block springs however, and not the Moroso Trick springs.
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Old 08-09-2018, 04:28 PM
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I have competition engineering 90-10s front and rear of my 68 Camaro. I also have big block front springs under a aluminum heads small block and 5 leaf rears.
I see a little rise in the front, but there is enough to keep the 50 series tires from spinning when I go through the gears
I have no problem driving the car on a mountain road with plenty of turns
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