5LikesSC10 4x4 Thread
04-05-2012 | 11:48 AM
Ok guys and gals.. Here are my results after getting the FT on some scales...I used 4 of the 1000g eBay jewelry scales. Definitely NOT what I expected to see...
Mine is equipped with Spektrum servo and receiver w cap,RX8,Tenshock 411 4600,Reedy saddles.. I measured it on my wooden kitchen table and moved the scales around from corner to corner to make sure I didn't have a bad scale. For anyone wanting to verify the accuracy of a scale a nickel weighs 5 grams.. But I digress.. On to the numbers....
LF 21.39g RF 18.19g
LR 23.66g RR 26.05g
Totally shocked the motor/esc side is 2.4g lighter than the receiver side. Only thing I can figure is the belt assembly/slipper is all offset to the right.
Also pretty wild how light the front end is!!!! Now thinking all my weight is going to end up around the servo.
Mine is equipped with Spektrum servo and receiver w cap,RX8,Tenshock 411 4600,Reedy saddles.. I measured it on my wooden kitchen table and moved the scales around from corner to corner to make sure I didn't have a bad scale. For anyone wanting to verify the accuracy of a scale a nickel weighs 5 grams.. But I digress.. On to the numbers....
LF 21.39g RF 18.19g
LR 23.66g RR 26.05g
Totally shocked the motor/esc side is 2.4g lighter than the receiver side. Only thing I can figure is the belt assembly/slipper is all offset to the right.
Also pretty wild how light the front end is!!!! Now thinking all my weight is going to end up around the servo.
Input the numbers on that site
04-05-2012 | 11:50 AM
04-05-2012 | 11:52 AM
So p[lugging it in the calculator the left and right is pretty even but you have a huge wedge.
Read here:
http://grassrootsmotorsports.com/art...orner-weights/
Read here:
http://grassrootsmotorsports.com/art...orner-weights/
04-05-2012 | 11:54 AM
Left Front weight: 647.5 Right Front weight: 640.2
Left Rear weight: 751.3 Right Rear weight: 750.4
Cross Weight = 1391.5 49.9% (50% is optimal)
I got those numbers after doing the saddle mod with 4800 Gens Ace need to recalculate since now I have the 6000's
Left Rear weight: 751.3 Right Rear weight: 750.4
Cross Weight = 1391.5 49.9% (50% is optimal)
I got those numbers after doing the saddle mod with 4800 Gens Ace need to recalculate since now I have the 6000's
04-05-2012 | 12:03 PM
Tech Rookie
Joined: Apr 2012
Posts: 2
From: Ringgold,Ga
Tire help-
That is normal since RC tires aren't belted so at high rpms with no load on the tires, the centrifugal force pulls the tire away from the rim. You don't need to "fix it". All you need to do is a quick blip to make sure the drive train is free and functioning properly, but never just gas it hard while the car is off the ground for an extended period of time or else you get the pizza cutter look you are referring too.
Can try strapping a piece of tape on the inside of the tire before gluing ..
The tires can only stretch if they are spinning with no grip , if they had traction the tire speed would not be strong enough to do otherwise ....
Ok I have to say thanks for the imput from each of you. It's good to know that I havent some how created a real big problem for myself with this up grade. and the tape idea might just work out some to help keep the tire from deforming slightly. and I wil for sure remember not to let it free rev. It just looked so I odd when I noticed the tires deforming and it had me worried. So thanks for the help and anyone else has any other ideas than please let me know what you think.
04-05-2012 | 12:22 PM
04-05-2012 | 12:42 PM
Ok guys and gals.. Here are my results after getting the FT on some scales...I used 4 of the 1000g eBay jewelry scales. Definitely NOT what I expected to see...
Mine is equipped with Spektrum servo and receiver w cap,RX8,Tenshock 411 4600,Reedy saddles.. I measured it on my wooden kitchen table and moved the scales around from corner to corner to make sure I didn't have a bad scale. For anyone wanting to verify the accuracy of a scale a nickel weighs 5 grams.. But I digress.. On to the numbers....
LF 21.39 oz RF 18.19 oz
LR 23.66 oz RR 26.05 oz
Totally shocked the motor/esc side is 2.4oz lighter than the receiver side. Only thing I can figure is the belt assembly/slipper is all offset to the right.
Also pretty wild how light the front end is!!!! Now thinking all my weight is going to end up around the servo.
Mine is equipped with Spektrum servo and receiver w cap,RX8,Tenshock 411 4600,Reedy saddles.. I measured it on my wooden kitchen table and moved the scales around from corner to corner to make sure I didn't have a bad scale. For anyone wanting to verify the accuracy of a scale a nickel weighs 5 grams.. But I digress.. On to the numbers....
LF 21.39 oz RF 18.19 oz
LR 23.66 oz RR 26.05 oz
Totally shocked the motor/esc side is 2.4oz lighter than the receiver side. Only thing I can figure is the belt assembly/slipper is all offset to the right.
Also pretty wild how light the front end is!!!! Now thinking all my weight is going to end up around the servo.
After you do that, verify that your ride height is exactly the same on both sides. I usually set at 24mm to start, and check in in four corners.
Then, you need to verify that the preload is the same in all four shocks. If you have one shock that has more preload (than another on the same axle) you need to start looking for something bent (like a warped A arm).
Once you do all these steps, then you put it on the scales.
Assuming that you did all these steps, I'd be inclined to take a half turn out of the RR and add half a turn to the RF to start.
04-05-2012 | 01:06 PM
You need to make sure the surface the scales are on is perfectly flat and level. If it is not, one corner will read light and another will read heavy.
After you do that, verify that your ride height is exactly the same on both sides. I usually set at 24mm to start, and check in in four corners.
Then, you need to verify that the preload is the same in all four shocks. If you have one shock that has more preload (than another on the same axle) you need to start looking for something bent (like a warped A arm).
Once you do all these steps, then you put it on the scales.
Assuming that you did all these steps, I'd be inclined to take a half turn out of the RR and add half a turn to the RF to start.
After you do that, verify that your ride height is exactly the same on both sides. I usually set at 24mm to start, and check in in four corners.
Then, you need to verify that the preload is the same in all four shocks. If you have one shock that has more preload (than another on the same axle) you need to start looking for something bent (like a warped A arm).
Once you do all these steps, then you put it on the scales.
Assuming that you did all these steps, I'd be inclined to take a half turn out of the RR and add half a turn to the RF to start.
I still need to add my transponder, so I have some ability to change the bias with where I locate that. Also plan on adding the fan to the RX8 and that will change things as well.
I'm going to add those, and measure again on the absolute flatest surface I have available.... A big huge thick piece of glass
04-05-2012 | 01:14 PM
Followed all of that using a digital caliper to verify prior to weighing. I don't have much control over that particular surface, it's a large wooden kitchen table that seats six. Probably some warp to the wood. Truck is a fresh build and has only been run up and down the street for about a minute.
I still need to add my transponder, so I have some ability to change the bias with where I locate that. Also plan on adding the fan to the RX8 and that will change things as well.
I'm going to add those, and measure again on the absolute flatest surface I have available.... A big huge thick piece of glass
I still need to add my transponder, so I have some ability to change the bias with where I locate that. Also plan on adding the fan to the RX8 and that will change things as well.
I'm going to add those, and measure again on the absolute flatest surface I have available.... A big huge thick piece of glass
Looks like this one:
http://www.lefthander-rc.com/catalog...oducts_id=1638
Moving weight around has less change than you'd think. Not to be a jerk, but if your chassis is as fresh as you say it is, I suspect you aren't doing as good a job measuring your ride height as you think you are.
04-05-2012 | 01:19 PM
If you're using saddles, the weight should be almost dead perfect right off the trailer.
