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-   -   Team Associated B4.2 Thread (https://www.rctech.net/forum/electric-off-road/694124-team-associated-b4-2-thread.html)

Waflet 07-15-2013 09:57 PM


Originally Posted by Wildcat1971 (Post 12351990)
I once shattered a rotor when I swapped out an esc that was giving me issues and forgot the spare esc was boosted. So my reedy with 40 deg on the motor and 30 deg of boost on the esc didnt like it at all.

Hideeho
I tried that exact setup this weekend with great results. What ESC were you using & what did you have geared? I'm currently borrowing an MMP geared 72/30 & I am pleasantly surprised with how smooth it is. I will be getting an RSG2 in the near future.

I did have a problem with a faulty sensor wire that made it impossible to drive in the main, so I retired (swapping from sensored w/ 30* timing to sensor less w/ no timing & back mid corner is problematic). It was an odd main, only 5 cars started (1 didn't make the start & a low turnout) & all 5 came off the track with some problem during the 10 minute race. Only 3 finished, 3rd place was not one of the cars to finish:weird:.

Kuya_Kimo 07-15-2013 10:09 PM


Originally Posted by millhouse420 (Post 12351594)
The B4.2 is an outstanding buggy. I have had now for two months and let me just say that it is awesome..... I just won my first B main event in Saturday and it felt awesome.

Grats! Do you have any video?

iterator 07-15-2013 11:09 PM

Ryan Maifield's awesome 2wd Modified Buggy run from the JConcept's Summer Indoor Nats this last weekend in Chico California. His B4.2 looked super planted, Steven Hartson was able to reel him in and make it a two horse race.
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.

millhouse420 07-16-2013 12:02 AM


Originally Posted by Skillz_B (Post 12351872)
Sounds like you guys dont run a blinky 17.5 class

You know we don't. It's a really small hole in the wall hobby shop buts it was fun. I do want to run blinky though!

millhouse420 07-16-2013 12:04 AM


Originally Posted by Kuya_Kimo (Post 12352379)
Grats! Do you have any video?

kuya, thanks bro. I have video, I've watched a grip of times you were right! I saw so many things that are helping me on my game :batman:

Skillz_B 07-16-2013 02:36 AM


Originally Posted by iterator (Post 12352485)
Ryan Maifield's awesome 2wd Modified Buggy run from the JConcept's Summer Indoor Nats this last weekend in Chico California. His B4.2 looked super planted, Steven Hartson was able to reel him in and make it a two horse race.
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.

Did you get a look at his setup?

It will be interesting to see what direction the AE guys go for Worlds.

Matt Trimmings 07-16-2013 05:30 AM


Originally Posted by Skillz_B (Post 12352707)
It will be interesting to see what direction the AE guys go for Worlds.

I would say the direction of a C4.2

Grasschopper 07-16-2013 05:44 AM

Ok this may have been covered and maybe it just comes down to personal preference but I was working on my car post race day and my motor mount is a little tweeked. Honestly it doesn't seem to be affecting performance much but I want to make sure I don't mess anything up and I'm doing a fairly complete rebuild so why not.

I've seen some prior discussions of the topic and it seems like a part that is commonly replaced due to bending. I'm not going to stop crashing any time soon and race on a track that is more set up for 1/8 buggies so the jumps are not optimal for a 1/10 buggy. So I guess the real question is: Is it worth it to get one of the milled motor plates and is one stronger than the others? And if there is a significant strength increase with the non milled plate? Looking at the design the plate isn't bending where the milling is so my guess is that the milling has no affect on the strength of the part in regards to the bending.

So AE has the non milled plate for ~$7 and their milled plate for ~$14 (going by AMain pricing)
Avid has a milled plate for $17
STRC has a milled plate for $13

So does the milled plate make any performance benefit that would make it worth 2X the cost? I'm certainly not a pro, just a club racer but I do like having nice stuff.

Matt Trimmings 07-16-2013 05:47 AM

If you are bending them I would go with the standard non-milled plate. The Avid plate is very strong from what I have seen as well. I would stay away from STRC stuff personally. All the AVID stuff is top notch.

57TURBO 07-16-2013 06:12 AM


Originally Posted by Grasschopper (Post 12352964)
Ok this may have been covered and maybe it just comes down to personal preference but I was working on my car post race day and my motor mount is a little tweeked. Honestly it doesn't seem to be affecting performance much but I want to make sure I don't mess anything up and I'm doing a fairly complete rebuild so why not.

I've seen some prior discussions of the topic and it seems like a part that is commonly replaced due to bending. I'm not going to stop crashing any time soon and race on a track that is more set up for 1/8 buggies so the jumps are not optimal for a 1/10 buggy. So I guess the real question is: Is it worth it to get one of the milled motor plates and is one stronger than the others? And if there is a significant strength increase with the non milled plate? Looking at the design the plate isn't bending where the milling is so my guess is that the milling has no affect on the strength of the part in regards to the bending.

So AE has the non milled plate for ~$7 and their milled plate for ~$14 (going by AMain pricing)
Avid has a milled plate for $17
STRC has a milled plate for $13

So does the milled plate make any performance benefit that would make it worth 2X the cost? I'm certainly not a pro, just a club racer but I do like having nice stuff.

I have been taking the non milled plate and milling the top half only. once you mill into the area of where the can is mounted it seems to make a week spot and once it generates a bend line it is hard to stop it from reocurring. It worked for my sons car.

Wildcat1971 07-16-2013 06:14 AM

Get the non milled plate. Or the avid one. I have bent the avid also, so yeah. It still bends

Grasschopper 07-16-2013 06:14 AM


Originally Posted by Matt Trimmings (Post 12352967)
If you are bending them I would go with the standard non-milled plate. The Avid plate is very strong from what I have seen as well. I would stay away from STRC stuff personally. All the AVID stuff is top notch.

Yea I like Avid stuff in general...I run the Triad slipper, their Bellcrank and the 2+2 pistons on my B4. Ugh...I just placed an order from them yesterday in fact for a boatload of bearings and some more pistons...wish I had seen the bent plate before ordering.

So why avoid one brand over another? CNC milled AL is pretty much all the same, I assume they are all using 6061 and getting them anodized. That said in looking at the AE plate they just take the stamped stock plate and the mill out the back side. In talking to our machinist he mentioned that doing it like AE (and STRC) is doing it is going to give the part a tendency to bend in the direction it wants to bent anyway as they are only removing material from one side of the part. Avid's design does have the benefit that it is relieving equal stress from both sides of the part. They also do not machine down nearly as close to the motor as AE. Hmm, it really is a better design.

Matt Trimmings 07-16-2013 06:22 AM

I have read of issues that some were having with STRC's aluminum parts. I couldnt tell you what parts they were...I have read good and bad though. Personally though I would stick with an AE or Avid part on my car. JConcepts is working on a new motor plate, I believe its called the honeycomb or something like that. It takes into account what you stated about only milling the plate in one direction.

Grasschopper 07-16-2013 06:43 AM


Originally Posted by Matt Trimmings (Post 12353052)
I have read of issues that some were having with STRC's aluminum parts. I couldnt tell you what parts they were...I have read good and bad though. Personally though I would stick with an AE or Avid part on my car. JConcepts is working on a new motor plate, I believe its called the honeycomb or something like that. It takes into account what you stated about only milling the plate in one direction.

I have used STRC parts on both my son's xxx-sct and my own and never had an issue with any of their parts. Only a small sample but I have had positive results.

I think I'm going to go with Wildcat1971's suggestion and get the stock plate for now...probably order a couple of them. And actually I'm going to see what it would cost to get a bunch of motor plates CNCed and see if it makes any sense to sell them. Hope would be to beat the STRC price with a high quality part and make not a lot of money. :lol:

mingoglia 07-16-2013 06:49 AM


Originally Posted by Matt Trimmings (Post 12353052)
I have read of issues that some were having with STRC's aluminum parts. I couldnt tell you what parts they were...I have read good and bad though. Personally though I would stick with an AE or Avid part on my car. JConcepts is working on a new motor plate, I believe its called the honeycomb or something like that. It takes into account what you stated about only milling the plate in one direction.

Do these motor plates bend frequently? I've heard of a few, but haven't experienced this as a "problem" myself. I got my 8yo into racing last September with one and he was bashing into everything, particularly since we started him out in 13.5 because at the time our 17.5 program was non-existent at the time. He couldn't go 10' without running into a wall. In addition we've crashed pretty damn hard in recent months with our T4.1 FT with a 7.5 on a medium sized track and over the past year have yet to bend one. I think we've broken everything else on the car other than the motor mount and front/rear shock towers. I realize though there's some (bad) luck involved and some people just tend to crash in ways that break different parts. I realize I just jinxed myself here. :lol:


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