Depends. Maybe 8 or 9 fr, 6 or 7 rr. But as they got more shot, I increased the clicks to compensate. Don't depend on me anyway. I have never been any good at feeling when shocks are "just right." Way too loose, I know. Way too tight, I know. In between, not so much.

 

Too late for now. Already putting more coin into a QA1 rebuild.

If those fail, I'm thinking some cab-adjustable Rancho RS9000s. They might be off road shocks, but that's better than broken road racing shocks. And cab-adjustable might be good for helping improve my shock butt dyno. We'll see.

 

Hate to bring this aspect to the surface (haven't read the entire post, but), .......... do any of the shock manufacturers in question claim to handle a 4800lb vehicle effectively in a race capacity?

Tim you have a reputation for pushing the limit..................!?

Call me crazy, but hey the shocks you are discussing typically handle much lighter vehicles as in cars not trucks?

Is there an aftermarket mftr that specifically designs performance shocks for the "Lightning"?

D-Day

 

[QUOTE=Dan_03Lightning]Hate to bring this aspect to the surface (haven't read the entire post, but), .......... do any of the shock manufacturers in question claim to handle a 4800lb vehicle effectively in a race capacity?

Tim you have a reputation for pushing the limit..................!?

Call me crazy, but hey the shocks you are discussing typically handle much lighter vehicles as in cars not trucks?

Is there an aftermarket mftr that specifically designs performance shocks for the "Lightning"?


Yes bilstein with the Hotchkis version which has a sportier valving but they aren't adjustable.

QA-1 started to list the Lightning only after people started buying their universal spec shocks. So zero development done there. When I saw their application list, I don't remember seeing any vehicle over 4000lbs.

Like I mentioned before, in order to last, one should keep the spring rate below 800lbs and at 7 click or below. Like Tim as also confirmed, 1000+lb spring rate at 8-9 will kill them.

I am getting pretty good results on the road course with the stiffest sway bars possible, relatively low spring rate with spring rubbers and
QA-1's at 7 front and 6 in the back. Too stiff isn't good because it makes to weight transfer more difficult unless you are building a drift car. Nice added benefit is a vehicle which is more pleasant to ride on the street.

TB

 

[QUOTE=TrackBeast]
Yes... (this is not meant to be advertisment for a non-SV, only for informational purposes only)

http://secure-order-area.net/paulshp...=8206555_24647

 

Are these drag valved? If not, why no fronts?

 

[QUOTE=l-menace]That wasn't my question, I was trying to quote Dan 3 Light. PHP's shocks are for the rear only and are manufactured by Penske. The are valved for drag racing.

TB

 

[QUOTE=TrackBeast]They had better be more than revalved if they are to last any time at all.

I have the stockers in front. They are limp noodles after maybe 5K miles.

Weight and spring rate is no excuse for the QA1s to be failing. My rear spring rate is not that high. The weight distribution is 57/43. That leaves a relatively lightly sprung 2,000 lbs over the rear shocks. That's about what a 3,500 lb front-engined car with the same weight distribution puts over the front shocks. AFAIK, the front and rear QA1s are the same internally. And both of my rears are shot.

 

[QUOTE=Tim Skelton]Tim,
You are absolutely right. I can understand the front but the rears shouldn't fall apart like that.

I was looking over a race vehicle last Friday. It had Penske shocks. You should have seen the bore size on them. Very well built. If my Q's give me any more issues, that might be the way to go. Screwing around with frail parts costs money too. I don't mind spending more for something that is really worth it.

TB

 

LOL..... First of all that was not my quote bwtf.

And second of all I want to know what exactly are you doing in the rear to cause shock failure?

In all seriousness - this is a great ? especially for those of us who want to hit the track (like me) and we need to know what to expect.



D-Day

 

Something has gone awry with quotes in the software changeover. Everyone's quotes are one message back.

At any rate, remember that I could be a fault here if I am topping or bottoming out the shocks. But as previously stated, I can't see that as a possibility both front and rear. Denny at D&D should have mine open by the end of the week. I will report his findings.

 

Looks ok here - must have been temp issue

 

Check out messages 37-39.

 

I saw them, but couldnt reproduce the issue

I know Steve is working out a few small bugs - Have to assume it was a temporary problem and is resolved now

 

How much is this costing you? I just got a set from RUSlow, and if this is an issue, I need to know what I can do to get satisfaction.