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View Full Version : 90/10 shock on the rear



dchamp3
03-04-2012, 08:56 PM
I was just wondering how many degrees the 90/10 shock on top of a rear should be uphill at ride hgt ?

andy16
03-04-2012, 09:23 PM
not many people run em any more. middle hole should be safe ???? somethin about delays the hook? plus you got one shock on the 5th coil thats pretty much controlling axle wrap up. iv ran one and not ran one couldn tella difference so left it off

dchamp3
03-05-2012, 09:54 PM
nobody know anything about this come on.

sj valley dave
03-06-2012, 12:22 PM
Don't run them anymore ...Took the bracket off the QC on our GRT years ago...

hall99
03-06-2012, 12:51 PM
Should be level at ride height.

keeks
03-06-2012, 01:10 PM
Why have you guys stopped running the 90-10??

k

keeks
03-06-2012, 01:13 PM
Oops. I read it wrong. I was thinking the left rear front shock.

k

rubbinsracin
03-06-2012, 03:44 PM
I think that its older technology. We have not ran one in many years. We did try to run a dummy shock up there one time "just to see" and I felt no difference. So we took the brackets off and have never Looked back.

keeks
03-06-2012, 08:45 PM
I think it is not necessary if you are running the 5th and 6th coils. The 90-10 can limit the rear steer, from what I understand.

dchamp3
03-06-2012, 09:46 PM
Well i know they work we ran on a 09 Smackdown car and it really helped plus the driver liked it, he said it tightend the car up alot ,I just couldn't remember if it was supposed to be level or uphill 5 to 10 degrees.

sj valley dave
03-07-2012, 01:28 AM
When we did have a 90/10 on top of quick change it was up hill at 12* at ride height...Seemed like it slowed down forward drive and perhaps rear steer

MasterSbilt_Racer
03-07-2012, 07:10 AM
They can still work. It is just a tuning tool that has been tossed aside for years. I think the last time I ran one or helped someone with one on a 4 link was maybe 1999. You can tune the angle. I would stay level to uphill 10 degrees.

hall99
03-07-2012, 08:39 AM
Well i know they work we ran on a 09 Smackdown car and it really helped plus the driver liked it, he said it tightend the car up alot ,I just couldn't remember if it was supposed to be level or uphill 5 to 10 degrees.

I ran one alot on our smackdown cars as well. We don't on the Gen X stuff but its a completely different beast.

dchamp3
03-07-2012, 09:41 PM
Thanks for getting back on this subject, the only time we want run this is when its super slick.

GRTLRBITE
03-08-2012, 07:46 PM
some are running 90/10's now but have 250 psi gas pressure to give more traction

jrkracing54
03-09-2012, 11:09 AM
I know of a very well known chassis builder/racer who's cars are supposed to be very secretive that runs one all the time.

Egoracing
03-09-2012, 12:17 PM
I know of a very well known chassis builder/racer who's cars are supposed to be very secretive that runs one all the time.

It may be easy to say he has one on it, IT is REALLY tough to say WHAT he has on it. If it is the person I am thinking of he used to have a mount to put it on that made it look like it was hooked to the rear even when it was not. He is the KING of "look at this" while you miss 10 other things.

hpmaster
03-09-2012, 04:37 PM
I used one back in the tailout, right front brake shut off, 60%+ rear weight and drive it with the right foot days. Now with rear steer, car under you, centralized weight, new shocks and all the other gizmos I dont miss it. Really am not going alot faster just going fast more consistantly.

powerslide
03-11-2012, 08:37 PM
its been 3-4years since i worked on a late model. Has everyone really stopped using the RF shut off?

sj valley dave
03-11-2012, 10:12 PM
We have one, he hasn't used it in 2 years..LOL

MasterSbilt_Racer
03-12-2012, 07:47 AM
I know of a very well known chassis builder/racer who's cars are supposed to be very secretive that runs one all the time.

Is it a car where everything is black underneath so that you can't really make anything out? but for some reason that "9010" is chrome?

jrkracing54
03-12-2012, 05:11 PM
Is it a car where everything is black underneath so that you can't really make anything out? but for some reason that "9010" is chrome?

Are Ohlin's chrome? If so then yes.

MasterSbilt_Racer
03-12-2012, 05:33 PM
Are Ohlin's chrome? If so then yes.

No. But I am told the shock on the rear is?

jrkracing54
03-14-2012, 12:30 PM
My knowledge is not from his personal car but a customers. Whoever "He" is. lol

Graff Spee
03-29-2012, 09:34 PM
A 90/10 will hold car up delaying traction throughout turn. Yes you can use one and yes they work. Do not exceed 10 degree upward angle toward the front. Just that somewhat annoying delayed traction deal. You can always run a 10/90 shock on the rear end facing towards the back. It works well as long as you don't let it top out. You can also just follow the current trend, and never get any faster but always be spending money. lol

dchamp3
03-30-2012, 09:17 PM
We had it on practice day two weeks ago and it was 3 tenths faster than anything there and the track was extremely slick with no problem getting traction the driver was happy , we shall see tomorrow night.

bullittwrench
03-31-2012, 08:42 AM
With an oil 90/10, I could see a traction delay. With a gas 9/0 and rod pressure, I would think there would be very minimal delay and the advantage of being able to run more bite and stay tight in. JMO

dchamp3
03-31-2012, 10:01 PM
It was a gas 90/10 and doesn't hurt traction,just like you said.

ENVY Suspension
05-09-2012, 08:19 AM
A "GAS" 90/10 can be a good tool for some tracks and track conditions. The older style 90/10s are really a traction robbing device, but the "GAS" versions can aid in traction...