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Author Topic:   90/10 shocks?
showtime13
Dirt Full Roller

Total posts: 60
posted January 16, 2005 12:17 PM  
On a dry smooth track, has any of you guys taken the 90/10 shock off?.....and has anyone ever try just putting a 50/50 valve shock in place of the 90/10??

I run a 4 link car

donslink1
Dirt Freak

Total posts: 318
posted January 16, 2005 01:34 PM  
If I would ever take the 90-10 shock off It wouldnt be when it gets dry it would be when It is tacky. To free the car up coming in.

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted January 16, 2005 04:31 PM  
it won't make much difference on a tacky track as you are in the gas a lot more... It'll Shock the suspention and let the car turn... its a crutch but works really well

showtime13
Dirt Full Roller

Total posts: 60
posted January 16, 2005 07:16 PM  
I tried a 3 valve shock and it realy helped me come off the coners smoother and the car didnt have that little snap coming out anymore and. I was able to drive the car off the coners straighter.

[This message has been edited by showtime13 (edited January 17, 2005).]

Dman
Dirt Freak

Total posts: 270
posted January 17, 2005 12:37 PM  
Running without the 90/10 on a hooked up track will break the pull bar on entry when you set the car with the brakes or even just emergency braking could cause it.Without the shock to dampen the braking force it will snap down hard on the braking biscuit shocking the whole pull bar, bending it or breaking it.Been there, done that(twice).There is nothing uglier on the rear of a car than breaking a pull bar or torque arm.Some guys may get away with it (like Xtreme12x.He's the luckiest guy I know!).It may be easier on the short pull bar to do this but I couldn't get a long bar to survive it.

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted January 17, 2005 01:05 PM  
All of our cars run without them. I guess we just have good luck...

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted January 17, 2005 01:29 PM  
I wonder about using a brake/torque arm without the 90/10. That should save the pullbar I would think.

donslink1
Dirt Freak

Total posts: 318
posted January 17, 2005 02:42 PM  
I have never taken the 90-10 shock off, I was just saying if I did I dont think it would be a dry track. taking it off would loosen the car up and most people tighten there car on corner entry when it gets dry.
thats all I was saying, I could see were it would be hard on a pullbar.
I was talking to Tim Donlinger one time, he was running a Hoffman car and said it was so tight on entry he took it off. So I know it has been done like xtreme12x said

showtime13
Dirt Full Roller

Total posts: 60
posted January 17, 2005 03:51 PM  
Ok....I guess I should have mentioned that also I run a lift bar that has a 250lb. spring,4 valve shock and a return spring with a chain. My thought is.. if I put the same valve shock on the rear end thats on the lift bar. Would I be making a mistake doing so? I thought that it might make the car react smoother on acceleration.

[This message has been edited by showtime13 (edited January 17, 2005).]

RACE18
Dirt Roller

Total posts: 9
posted January 17, 2005 07:15 PM  
Well said DMAN I was going to say the same thing. Things move way to hard and fast. Been there done that.

sdracer12
Dirt Maniac

Total posts: 180
posted January 17, 2005 10:46 PM  
I run without the 90/10 shock all the time. I have never broken the pullbar on braking, or anytime else. We run Hoosiers at Wissota shows, and taking off the 90/10 helps free up the car into the corner when the track is tacky and hooked up. I run an Afco Spring Bar, or a Biscuit bar on a 4bar car with a 36" pullbar.

You need the 90/10 when the track is dryslick to help with corner entry. Many many cars in my area never run a 90/10 shock at all with the Hoosiers. The Specialty Fab. J-cars use the Allstar Biscuit Bar about 20" long with no 90/10 shock. I can't think of anyone I know who has broken a pullbar during braking...now, rubbing and racin' is a different story...lol

You shouldn't use the same shock on top of the housing as your using on the liftbar. The motion ratio and the purpose of the shock is different between the 2 systems, and the pivot arm length is much shorter at the top of the housing than it is on the liftbar.


FlyNLoIMCA17
Dirt Forum Champ
Total posts: 753
posted January 17, 2005 11:08 PM  
I've seen racers pull off the 90/10 and not break anything, but I've never even taken mine off. Not that brave, my luck it would tear up everything.

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