Fps Or Ball Diff
#1
Fps Or Ball Diff
Wanna change the rear diff for my impulse due to worn gears but dom't know which is a better choice Ball diff or FPS?CAn anyone help ?Thanks.
#2
Tech Regular
Re: Fps Or Ball Diff
Originally posted by xax
Wanna change the rear diff for my impulse due to worn gears but dom't know which is a better choice Ball diff or FPS?CAn anyone help ?Thanks.
Wanna change the rear diff for my impulse due to worn gears but dom't know which is a better choice Ball diff or FPS?CAn anyone help ?Thanks.
If you worried about slight increase in weight on your car, then get the Ball Diff.
If u want to save some money, then just replace the worn out gears.
#3
I have the reg. ball diff (the one with the spring steel outdrives)in my impulse and love it. I have never owned the FPS diff, but i know it is better. I'm pretty sure it has a slipper in it. So, if the diff begins to slip, it will not hurt the balls at all. Kind of like the nitro tc3 diff, but much, much, much beefier. I'm pretty sure the FPS diff only comes with the 47 tooth pulley, so you will have to purchase the 46 tooth pulley seperately.
The ball diffs are so easy to adjust, even while the car is running. All you have to do is slip a hex key in one outdrive ank turn the right wheel.
Try Winner's Circle for the diffs at gasrccar.com or 1-866-NITRORC. Lee Muse has a great thing going for serpent parts.
The ball diffs are so easy to adjust, even while the car is running. All you have to do is slip a hex key in one outdrive ank turn the right wheel.
Try Winner's Circle for the diffs at gasrccar.com or 1-866-NITRORC. Lee Muse has a great thing going for serpent parts.
#4
Tech Regular
Originally posted by Proficar403
I have the reg. ball diff (the one with the spring steel outdrives)in my impulse and love it. I have never owned the FPS diff, but i know it is better. I'm pretty sure it has a slipper in it. So, if the diff begins to slip, it will not hurt the balls at all. Kind of like the nitro tc3 diff, but much, much, much beefier. I'm pretty sure the FPS diff only comes with the 47 tooth pulley, so you will have to purchase the 46 tooth pulley seperately.
The ball diffs are so easy to adjust, even while the car is running. All you have to do is slip a hex key in one outdrive ank turn the right wheel.
Try Winner's Circle for the diffs at gasrccar.com or 1-866-NITRORC. Lee Muse has a great thing going for serpent parts.
I have the reg. ball diff (the one with the spring steel outdrives)in my impulse and love it. I have never owned the FPS diff, but i know it is better. I'm pretty sure it has a slipper in it. So, if the diff begins to slip, it will not hurt the balls at all. Kind of like the nitro tc3 diff, but much, much, much beefier. I'm pretty sure the FPS diff only comes with the 47 tooth pulley, so you will have to purchase the 46 tooth pulley seperately.
The ball diffs are so easy to adjust, even while the car is running. All you have to do is slip a hex key in one outdrive ank turn the right wheel.
Try Winner's Circle for the diffs at gasrccar.com or 1-866-NITRORC. Lee Muse has a great thing going for serpent parts.
#5
Originally posted by nizee
The FPS doesn't come with any pulley at all, sold separately. I've still not taking it out for re-built from the last 3 months. Unlike my ball, i've to re-built due to sand easily get into the ball and the plate.
The FPS doesn't come with any pulley at all, sold separately. I've still not taking it out for re-built from the last 3 months. Unlike my ball, i've to re-built due to sand easily get into the ball and the plate.
Yes, the ball diff is lighter. Proficar mentioned that you can adjust it "externally" but still you need to take out the left rear dog bone... You need to dismantle the rear left shock and detach the upper left rear arm to the left rear knuckles to pop out the dogbone.
Unlike the FPS diff, the diff action in the ball diff will somewhat be inconsistant in a long main when the bearings start to wear out (if they wear out). The FPS diff provides constant diff action throughout the entire race as there is actually no wearing parts. It's also easy and fast if you need to adjust the rear diff settings.
With the FPS, you just need to loosen the grub screw that locks the nut and unscrew or tighten this nut to provide less or more friction for diff action. You can see in the picture attached that the diff action is somewhat provided by 2 pieces of rubber pads externally. So there is actually no wearing of parts like the bearings or thrust plates and such on the normal ball diff.
Last edited by InitialD; 06-17-2003 at 10:25 AM.
#6
Tech Regular
Originally posted by InitialD
Yup, I have not rebuilt my FPS diff in my Impulse either. It is impossible for sand to enter the FPS unlike the regular ball diff.
Yes, the ball diff is lighter. Proficar mentioned that you can adjust it "externally" but still you need to take out the left rear dog bone... You need to dismantle the rear left shock and detach the upper left rear arm to the left rear knuckles to pop out the dogbone.
Unlike the normal ball diff, the diff action will somewhat be inconsistant in a long main when the bearings start to wear out (if they wear out). The FPS diff provides constant diff action throughout the entire race as there is actually no wearing parts. It's also easy and fast if you need to adjust th rear diff settings.
With the FPS, you just need to loosen the grub screw that locks the nut and unscrew or tighten this nut to provide less or more friction for diff action. You can see in the picture attached that the diff action is somewhat provided by 2 pieces of rubber pads externally. So there is actually no wearing of parts like the bearings or thrust plates and such on the normal ball diff.
Yup, I have not rebuilt my FPS diff in my Impulse either. It is impossible for sand to enter the FPS unlike the regular ball diff.
Yes, the ball diff is lighter. Proficar mentioned that you can adjust it "externally" but still you need to take out the left rear dog bone... You need to dismantle the rear left shock and detach the upper left rear arm to the left rear knuckles to pop out the dogbone.
Unlike the normal ball diff, the diff action will somewhat be inconsistant in a long main when the bearings start to wear out (if they wear out). The FPS diff provides constant diff action throughout the entire race as there is actually no wearing parts. It's also easy and fast if you need to adjust th rear diff settings.
With the FPS, you just need to loosen the grub screw that locks the nut and unscrew or tighten this nut to provide less or more friction for diff action. You can see in the picture attached that the diff action is somewhat provided by 2 pieces of rubber pads externally. So there is actually no wearing of parts like the bearings or thrust plates and such on the normal ball diff.
Waiting for Modeller on the new set of frame... then my car looks new..
#7
Originally posted by nizee
Your frame kinda looks like mine....
Waiting for Modeller on the new set of frame... then my car looks new..
Your frame kinda looks like mine....
Waiting for Modeller on the new set of frame... then my car looks new..
I took a second look at the pic and the digicam really captured all the scratches
Well, the pic you see is actually the chassis from the Wolfpack for the Impulse PRO as the FPS is still in that car.
#8
Tech Addict
New Ball Diff?
Hey guys,
Question- I believe I was reading somewhere in MYTSN,
Serpent was going to redesign there balldiff and
make it externally adjustable, without disassembly
of one side of the car.
Can anyone else concur with this......
Question- I believe I was reading somewhere in MYTSN,
Serpent was going to redesign there balldiff and
make it externally adjustable, without disassembly
of one side of the car.
Can anyone else concur with this......
#9
Re: New Ball Diff?
Originally posted by BSYDOR
Hey guys,
Question- I believe I was reading somewhere in MYTSN,
Serpent was going to redesign there balldiff and
make it externally adjustable, without disassembly
of one side of the car.
Can anyone else concur with this......
Hey guys,
Question- I believe I was reading somewhere in MYTSN,
Serpent was going to redesign there balldiff and
make it externally adjustable, without disassembly
of one side of the car.
Can anyone else concur with this......
#10
I think you all are mistaken. The reg ball diff is externally adjustable. If you look at a pic of it, it has a hole in the left outdrive that can be accessed by a hex key. This locks the diff adjustment screw, so all you have to do is turn the right wheel to tighten or loosen the diff. See the pic in the link.
http://www.mytsn.com/products/desc.asp?prid=2227
http://www.mytsn.com/products/desc.asp?prid=2227
#12
Originally posted by Proficar403
I think you all are mistaken. The reg ball diff is externally adjustable. If you look at a pic of it, it has a hole in the left outdrive that can be accessed by a hex key. This locks the diff adjustment screw, so all you have to do is turn the right wheel to tighten or loosen the diff. See the pic in the link.
http://www.mytsn.com/products/desc.asp?prid=2227
I think you all are mistaken. The reg ball diff is externally adjustable. If you look at a pic of it, it has a hole in the left outdrive that can be accessed by a hex key. This locks the diff adjustment screw, so all you have to do is turn the right wheel to tighten or loosen the diff. See the pic in the link.
http://www.mytsn.com/products/desc.asp?prid=2227
#13
Tech Regular
Originally posted by Proficar403
I think you all are mistaken. The reg ball diff is externally adjustable. If you look at a pic of it, it has a hole in the left outdrive that can be accessed by a hex key. This locks the diff adjustment screw, so all you have to do is turn the right wheel to tighten or loosen the diff. See the pic in the link.
http://www.mytsn.com/products/desc.asp?prid=2227
I think you all are mistaken. The reg ball diff is externally adjustable. If you look at a pic of it, it has a hole in the left outdrive that can be accessed by a hex key. This locks the diff adjustment screw, so all you have to do is turn the right wheel to tighten or loosen the diff. See the pic in the link.
http://www.mytsn.com/products/desc.asp?prid=2227
#14
Thanks guys you have been a great help.But can you guy elaborate the function of diff i.e what will happen to the car wif a tight diff and a loose diff?Is there a standard setting or set it according to indivvidual driving style?Thanks
#15
You need to set it according to your driving style and preference. A tight rear diff will give you less off power steering but more on power steering. You will want to use a loose rear diff when there isn't enough traction on the track. A loose diff will enable you to turn faster into a corner but somewhat slower out of a corner. Vice versa for a tight rear diff i.e. slow in fast out.