Post exact weights of weight reduction you have done!
Feb 16, 2013, 11:07 PM
#1700
Lol damn you guys I have spent so many late nights pulling weight out as much as possible but I think in the end itll definately be worth it. So far im down to 2770 ish with full interior which will be retained being its still a street car. Does anybody know if you can buy a rear brake kit directly from wilwood or do I need to go thru somebody?
Feb 16, 2013, 11:11 PM
#1701
Lol damn you guys I have spent so many late nights pulling weight out as much as possible but I think in the end itll definately be worth it. So far im down to 2770 ish with full interior which will be retained being its still a street car. Does anybody know if you can buy a rear brake kit directly from wilwood or do I need to go thru somebody?
get the girodisc ultra lite rotors or add the same WTB i have in your sig
Feb 17, 2013, 08:14 AM
#1703
I explained the EXACT issue. Doesn't matter if that scale is calibrated daily if you are below the usable range. There are PHYSICAL limitations to load cells and limitations of the electrical components measuring the load cell at low levels due to electrical noise. If you are below 10% of the full scale reading, the reading will not be accurate. There are ways to try and improve low end measurements, but it's all estimates at that point and will not be a certifiable value.
I agree with corner scales being much more likely to be accurate though simply because of the range they are designed to work in. Load cells are typically rated as a % of full scale when it comes to accuracy. If the cell can only handle 1500 pounds, then 1% is +/- 15 pounds. 1% is a fairly inaccurate load cell. A quality one will be in the 0.05% range. 0.05% on 100,000 pound truck scale though is still +/- 50 lb and below 10,000 lb can't be trusted anyway.
Then again, all the load cells I've calibrated and messed with required you to cycle them full scale before using them anyway or the measurement could easily be wrong. I'm talking high end load cells here too...
I agree with corner scales being much more likely to be accurate though simply because of the range they are designed to work in. Load cells are typically rated as a % of full scale when it comes to accuracy. If the cell can only handle 1500 pounds, then 1% is +/- 15 pounds. 1% is a fairly inaccurate load cell. A quality one will be in the 0.05% range. 0.05% on 100,000 pound truck scale though is still +/- 50 lb and below 10,000 lb can't be trusted anyway.
Then again, all the load cells I've calibrated and messed with required you to cycle them full scale before using them anyway or the measurement could easily be wrong. I'm talking high end load cells here too...
Yeah I have a set of 1500 dollar scales and they give me the same weight as the truck scales... of course.. the truck scales have a 20 pound resolution.
So great that the load cell isn't that accurate, but it's spot on.
My point... it works just fine. I wouldn't bet a SCCA National Championship trip on it... but it works for the intended purpose of most people
Feb 17, 2013, 09:37 AM
#1705
We have a rear brake drag kit custom fit on Tyler's Drag Evo that retains the stock rear calipers. If you can get enough people together for a group buy we can start offering the kit to the public. You can run the standard or scalloped rotors from the front brake kit. Hydraulic e-brake kit required.
-Jamie
-Jamie
Last edited by Dynotech Tuning; Feb 17, 2013 at 12:28 PM.
Feb 17, 2013, 11:28 AM
#1707
We have a rear brake drag kit custom fit on Tyler's Drag Evo that retains the stock rear calipers. If you can get enough people together for a group buy we can start offering the kit to the public. You can run the standard it scalloped rotors from the front brake kit. Hydraulic e-brake kit required.
-Jamie
-Jamie
DUDE. lets go. give me some details. what is the rotor weight? in the round version not the wavey type rotor
Feb 17, 2013, 12:31 PM
#1708
This is primarily a drag racing kit. This is not intended for constant, on/off braking as in road-racing or auto-crossing.
Stock rear rotor= 14.45lbs
Baer rear rotor= 11.75lbs (retains OEM rear e-brake assembly)
Our conversion kit allows use of these front rotors in the rear as well with the stock rear calipers:
Wilwood standard rotor= 9.25lbs (requires hydraulic e-brake conversion)
Wilwood scalloped rotor= 6.55lbs (requires hydraulic e-brake conversion)
Stock rear rotor= 14.45lbs
Baer rear rotor= 11.75lbs (retains OEM rear e-brake assembly)
Our conversion kit allows use of these front rotors in the rear as well with the stock rear calipers:
Wilwood standard rotor= 9.25lbs (requires hydraulic e-brake conversion)
Wilwood scalloped rotor= 6.55lbs (requires hydraulic e-brake conversion)
Last edited by Dynotech Tuning; Feb 17, 2013 at 02:25 PM.