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1.21 sixty foot slo-mo video, Hey Monte and Al...

Posted By: cudabin

1.21 sixty foot slo-mo video, Hey Monte and Al... - 09/05/16 03:10 AM

Tightened up the shocks so the front was 1.5 turns (Santhuff) from full stiff on extension, and the rears (Strange) were 2 clicks from full stiff. Check out the slo-mo video, and let me know what you would try next...

https://youtu.be/gVIvybq1gCM

Ran 5.47 at 124.6mph with a 1.21 sixty foot. Tires were at 10.25psi

With the front shocks at 2 turns out earlier, it went 1.32 60 foot on the rear tires...
Posted By: sgcuda

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/05/16 04:22 AM

Lower your wheelie bars.
Posted By: OUTLAWSSAA

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/05/16 05:29 PM

Looks good to me. If you loosen the frt shocks more the car will just go up higher, which is what you found out already.
Posted By: Monte_Smith

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/05/16 06:25 PM

Couple things...........One it needs some "real" wheelie bars, probably longer and set lower. Two, the rear shocks still look too soft on extension to me
Posted By: cudabin

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/05/16 10:21 PM

Monte, If I stiffen the extension on the rear 2 more clicks to be full stiff, should I leave the compression the same as it was, at 3 clicks away from full stiff, or tighten that too?

In the video, it is interesting to see that the Santhuffs in the front are still keeping the extension slow once the front is in the air. I was not using travel limiters, just a stiff extension setting...
Posted By: Al_Alguire

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/06/16 07:42 AM

Looks way better to me. I agree it looks like the rear is still to stiff. I would try tightening them up more. It is possible there is not enough extension in them and they may need to be revalved, hard to believe for a Santhuff shock really but certainly possible. I might also try a tad less air in the back. As for the front, still a fair amount of travel there that I don't think your car needs frankly..Keep chipping away.
Posted By: Monte_Smith

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/06/16 08:05 AM

Stranges on the back Al.......probably still going to be soft with them on full tight.........usually are with standard valving
Posted By: Al_Alguire

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/06/16 08:07 AM

Guess I missed that along the way. In that case I agree completely they are likely not gonna be tight enough without getting revalved or a different shock with stiffer valving.
Posted By: gregsdart

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/06/16 12:39 PM

Arnie, what is your weights, front/rear? That is the best slomo vid I have seen on here!
Posted By: cudabin

Re: 1,21 sixty foot slo-mo video, Hey Monte and Al... - 09/14/16 04:02 AM

Greg, we previously Scaled the car and after leveling everything and adjusting the torsion bars to equalize as much as posible, we ended up adding 1 flat of preload to the RR ladderbar. This gave us the following corner weights:

LF= 854 RF=740

LR= 596 RR= 589

Total wieght with 190# driver = 2,779#'s

total front = 1,594 or 57%

Total rear = 1,185 or 43%

41.2% of left side weight on LR, and 44.3% of right side weight on RR
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