Do not use Bilstiens shocks for drag racing !
- Thread starter TrentNell
- Start date
If I did limiting straps I would get the adjusters listed in Johnny's first link, that way you can get it dialed in on length.
Next time I talk to Buck or Jess I'll see what I can find out about the coil overs.
Next time I talk to Buck or Jess I'll see what I can find out about the coil overs.
Ya I saw those adjustable mounts . Very cool , just dont know exactly where you would put them . At first I was looking at just getting the right length and drilling holes to mount . But the adjustable mounts would let you go to the pits and shorten some or lengthen . Or even adjust one different to compensate for body twist on launch .
Could be pretty cool actually and still easily removed after racing for drive home . I think the key here is that many trucks are daily drivers and not on trailers . So having something easy to add at track and remove would be sweet .
just got off the phone with QA1 and they have a set of shocks that will fit, indapendant adjustmant of rebound and compression , they say many trucks of our weight are using them , and claim to have enough adjustment to almost hydrolock the shock if you wanted to . part # DTC1538P might go this route but not for the week hearted @$ 289.00 ea.
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Here is another link to a top shop local here . Kartek
http://www.kartek.com/Product/Fabrication/Straps.html
http://www.kartek.com/Product/Fabrication/Straps.html
nice... that should controll it very well... QA1 is goos shit....
BTW possible want to get rid of the biliestiens?
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Trent, I think the chain stops are well intended, but not a great idea. Anytime the suspension stops abruptly, bad things happen. I mean anything from inconsistent ET's to broken parts. Smoooooooth is key. I'd put the stockers back on (which I didn't think were to bad for my power level) before I solid linked it.
I think you're on the right track with the adjustable QA1's, but I'd ask 'em what the rebound and compression dampening values are (pounds per inches/sec, or whatever units they use). On another thread on here or at DP, Nick gave the dampening values for some 5100's for comparison.
I think you're on the right track with the adjustable QA1's, but I'd ask 'em what the rebound and compression dampening values are (pounds per inches/sec, or whatever units they use). On another thread on here or at DP, Nick gave the dampening values for some 5100's for comparison.
Just for grins, here's a graph of a shock dyno test on a single adjustable shock. You can see how the dampening values change with shaft speed at the different valving adjustments.
You need to compare the dampening values of different shocks before making arbitrary changes.
You need to compare the dampening values of different shocks before making arbitrary changes.
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I agree completely , but as far as the valving i dont think you can get a spec because its so adjustable , my concern was not being able to get enough valving and there shock tech told me as i stated it will go stiff enough to almost hydolock the shock if you really wanted it , this is off of QA1's site about these shocks
"Double Adjustable Stock Mount Shocks
Truly Independent Compression and Rebound Adjustment.
576 Valving Options
Includes 24 positions of compression adjustment on one knob, and 24 positions of rebound adjustment on the other knob. Each knob is clearly labeled with an R for rebound or a "C" for compression, as well as plus and minus symbols for ease of adjustment. "
i would think there would be enough adjustment ?
I think we're on the same page. From the "Casper's Suspension" thread, Nick said the 5100's were valved at 2750 Newtons Rebound/780 Newtons compression at .52 m/s. (Or for the English unit types, 899 pounds rebound/225 pounds compression at 20.4 in/sec)
The only thing I was saying, if the Bilsteins are too light in rebound, check the range of the QA1's to make sure their valving range is "tighter" than the Bilsteins (I'm sure they are).
BTW, I'm still curious about the Bilstein 6243's (4000/1000 valving).
The only thing I was saying, if the Bilsteins are too light in rebound, check the range of the QA1's to make sure their valving range is "tighter" than the Bilsteins (I'm sure they are).
BTW, I'm still curious about the Bilstein 6243's (4000/1000 valving).
i run skyjacker hydro shocks and they seem to be decent. not to $$$ and my 60's got better from stockers. My front does lift up about 2" but even with the stock centerlink everything stays straight.
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ya pm me what they are worth to you keep in mind just because i didnt like them doesnt mean i will give them away
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ya pm me what they are worth to you keep in mind just because i didnt like them doesnt mean i will give them away
POS shocks are free right? :rofl:
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trent, you have stock keys in just no bolts?
I have the 3" lowering keys, and 3 turns off of fully cranked. my cv's sit 2" higher on the spindle side than the diff side, so when i launch, the cv's are level. I cant really find anywhere to strap the front end down, so i got the drop keys, and fully cranked them. I also run the silver bilsteins, and was cutting low 1.7 60's.
I have the 3" lowering keys, and 3 turns off of fully cranked. my cv's sit 2" higher on the spindle side than the diff side, so when i launch, the cv's are level. I cant really find anywhere to strap the front end down, so i got the drop keys, and fully cranked them. I also run the silver bilsteins, and was cutting low 1.7 60's.
I had no issues last year running Bilsteins, cutting mid 1.7 60-ft's. I am not sure if I can do much better than that without stiffer shocks. I too think running a stiffer shock at the track would be advantageous for us.
Trent,
Do you have a picture of the right side while you are launching?
I have bilsteins and I will admit that they are not designed to be a drag racing shock. I used them for an entire season and had many pictures of the truck launching and never noticed the towing that you are getting in the first picture. I only have Cognito's as well.
I'm thinking that the problem might be body roll more than front end rise. You stated that you take the key bolts completely out. I always left the bolts in, 1/2 crank up on the driver side and 3 cranks up on the passenger side. This was done to help prevent body roll off the line. Just a thought. But then again, this was my experience with clamped stock rear springs. Even though, the rear end is not squatting it might be transferring more energy forward and causing the front of the truck to come up.
I believe that if anyone is going to do hard core drag racing than the QA1's are the way to go. Sure they are expensive but cheaper than broken parts. Straps would be okay but I think I would just go right to the big time with the racing shocks before cutting or welding on the front end.
Do you have a picture of the right side while you are launching?
I have bilsteins and I will admit that they are not designed to be a drag racing shock. I used them for an entire season and had many pictures of the truck launching and never noticed the towing that you are getting in the first picture. I only have Cognito's as well.
I'm thinking that the problem might be body roll more than front end rise. You stated that you take the key bolts completely out. I always left the bolts in, 1/2 crank up on the driver side and 3 cranks up on the passenger side. This was done to help prevent body roll off the line. Just a thought. But then again, this was my experience with clamped stock rear springs. Even though, the rear end is not squatting it might be transferring more energy forward and causing the front of the truck to come up.
I believe that if anyone is going to do hard core drag racing than the QA1's are the way to go. Sure they are expensive but cheaper than broken parts. Straps would be okay but I think I would just go right to the big time with the racing shocks before cutting or welding on the front end.
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Comon now we can go one peg lower. Duct Tape!!!
But anyways trentnell just got to say you have a very sharp looking truck.
Good to hear from someone that tried the straps .
But did it help is what Im wondering ?
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