4LikesSpeed Passion F1 car - The SP1
09-11-2013, 03:03 PM
#526
Ok, I'm really confused about spur options for the SP1. The car comes with a 48p spur and 18 diff balls, correct? So, if I wanted to switch to a 64p spur, what are my choices? Searching through the thread, people mention going to 64p but with what brand spur? Do the kit diff balls work with those spurs? And what FDR are you guys shooting for?
09-11-2013, 03:25 PM
#529
09-11-2013, 03:25 PM
#530
Here's my SP-1 winning this past weekend 
It's the white and red car.
http://www.youtube.com/watch?feature...s7d0nb5S8#t=28
It's the white and red car.http://www.youtube.com/watch?feature...s7d0nb5S8#t=28
09-11-2013, 03:30 PM
#532
You might find this article helpful in terms of FDR. The A-Z of Gearing with Blinky ESC's for F1.
09-11-2013, 03:51 PM
#533
Kimbro spur gears will work fine. They have been probably the most widely used pan car gear for a long time. The price is nice and they work well. The downsides are they aren't perfectly round usually and they use 12 diff balls. But even like that they can make for very smooth diffs if done right and enough care is taken when meshing the teeth.
So, I may give those a try, actually. I have OCD about building ball diffs, gear mesh, etc., so if I can get something truer than Kimbrough, I'm all over it
09-11-2013, 03:55 PM
#534
You might find this article helpful in terms of FDR. The A-Z of Gearing with Blinky ESC's for F1.
09-11-2013, 04:38 PM
#535
so we saw the audi e-tron body, what are the others ?
09-12-2013, 12:40 AM
#536
So, I'm about to order some 64p spurs and pinions, but since I don't have the kit yet, I'm wondering what would be a good "middle" range in terms of motor positioning in the mount? What I mean is, I want to make sure I don't get a spur/pinion combo that will force the motor too far into either side of the mounting range. Looking over spec sheets and reading here, it seems people have run 64p spurs from 78t all the way up to 96t. So... would something in the 84-ish range be safe? I'm going for a 3.0 FDR, so 84/28 or the like. I just want to have some room for up/down adjustment.
09-12-2013, 01:18 AM
#537
I see Stormer carries the Xenon gears in 64p, example: http://www.stormerhobbies.com/cgi-bi...&pn=XENM640078
So, I may give those a try, actually. I have OCD about building ball diffs, gear mesh, etc., so if I can get something truer than Kimbrough, I'm all over it
So, I may give those a try, actually. I have OCD about building ball diffs, gear mesh, etc., so if I can get something truer than Kimbrough, I'm all over it
So, I'm about to order some 64p spurs and pinions, but since I don't have the kit yet, I'm wondering what would be a good "middle" range in terms of motor positioning in the mount? What I mean is, I want to make sure I don't get a spur/pinion combo that will force the motor too far into either side of the mounting range. Looking over spec sheets and reading here, it seems people have run 64p spurs from 78t all the way up to 96t. So... would something in the 84-ish range be safe? I'm going for a 3.0 FDR, so 84/28 or the like. I just want to have some room for up/down adjustment.
09-12-2013, 01:42 AM
#538
Front:
Tire: Pit Shimizu 574
Spring: Kit stock
Kingpin: Dry, no oil for dampening
Caster: 10* block
Camber: 1*
Toe: .5* toe out
Ackerman: 2mm spacer (will probably go to 3mm next race)
Width: 190mm arm setting
Ride Height: 4.5mm
Droop: ? Not sure. I shimmed the king pin the same as stock
Rear:
Tire: Pit Shimizu 572
Center Spring: Kit stock
Shock oil: Stock
Side springs: Kit stock
Side damper oil: Kit stock
Droop: Stock shock length with stock mounting position
Width: Axle spaced to 190mm
Ride height: 5mm
Note: I made a couple of parts swaps on the car. I did not like spacing out the rear by using spacers inside the wheel because it takes the left side wheel off of the inner hex. So I decided I wanted to space the axle out instead. The stock left side hub didn't look like it would hold well enough if I spaced out the axle so I replaced it with the Qtec left side clamping hub for the F104. I also had an issue in the previous race with the steering link that connects the servo to the bell crank, it kept popping off. So I replaced the ball cups with AE ones which snap on tighter. Since the AE cup is bigger inside I used the cotton trick to take out the slop. As you can see in the video I did tap a couple barriers and the steering link stayed on. Also on the front suspension I made all my ride height adjustments between the chassis plate and the front suspension plate and had to raise the servo mount along with it. I did not raise the servo though. I found during my initial build if I did my ride height adjustments under the suspension arm that it messed up the steering link angle to the bell crank too much. Because the suspension plate was raised but the servo was not I went up 1 hole on the servo horn.
09-12-2013, 01:45 AM
#539
The lower front pivots on the arms on mine are starting to develop a bit of slop between the pivot and the king pin...the hole the king pin goes through is getting enlarged. Will there be a metal option soon for the pivot balls? Has anyone found another brand one that might fit?
09-12-2013, 07:36 AM
#540
It figures, I get into building the kit and I'm missing a part. The front Caster block. Has any body had experience with Speed passions customer service? I'm in the US by the way.