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Street Jam SJF01 Formula 1. Niiiiiiiiice!

Old 04-05-2015, 06:41 PM
  #421  
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Originally Posted by Dan View Post
Yes, check the left motor pod plate, opposite of the motor mount plate.

It is not designed that well and the aluminum used is not that strong, so it could bend in a crash. I was wondering too when I had the links equal but my pod was tweaked to one side. I found out the left side pod plate was bent, moving the upper link mounting plate more forward on one side. Even a slight bend will throw off your pod. Check it out and let us know. I replaced the pod plate with a new one and now its perfect. I also carry a spare just in case.
I checked the motor mount and you are right. There are no obvious signs that it is bent but the right side post on the motor mount seems to be slightly bent further back when compared to the left side. Or maybe its the left side that's bent. I built the car but haven't raced it yet. I have only taken the car out for some practice laps around the track and haven't crashed it yet. I think it was already bent right out of the box so maybe its a manufacturing defect.
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Old 04-12-2015, 07:36 PM
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Ok, latest update.

I have installed the STJ bladder front shocks on the IFS front end,
Initial thoughts were it was fantastic, well it was in practice anyway.

As soon as the sun went down and track went cold I just couldn't get any front bite out of the tyres, it would just understeer. This was with soft fronts, and the hardest springs. I dropped down a spring rate for the final but was worse.

2 days later and different track and a little heat during a day race the car was back to being great and on the pace.

I don't normally heat the Shimizu F1 tyres but I think I am going to have to start during winter

Ill see if its any better with warmers this Friday night.
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Old 08-15-2015, 09:49 AM
  #423  
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Originally Posted by jdawg81 View Post
I think it was already bent right out of the box so maybe its a manufacturing defect.
Mine came pre-tweaked as well. It's not a well-designed part. Basically they took the original Speedpassion part and added a boss for the lower ball connector for the shock. I put it in a vise and bent it back to something approximating square. I ordered a couple more from RC-Art, and hopefully those are not defective as well.
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Old 08-16-2015, 08:53 PM
  #424  
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Originally Posted by funked1 View Post
Mine came pre-tweaked as well. It's not a well-designed part. Basically they took the original Speedpassion part and added a boss for the lower ball connector for the shock. I put it in a vise and bent it back to something approximating square. I ordered a couple more from RC-Art, and hopefully those are not defective as well.
It seems to get tweaked easily as I noticed my rear pod was noticeably tweaked to one side after what seemed like a light tap along the wall. I just adjust the rear links until it looks even.
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Old 10-01-2015, 08:33 AM
  #425  
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great car, moving on to focus more on 1/12. listed my sjf01 in the for sale section if interested
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Old 10-14-2015, 12:19 PM
  #426  
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Default Carpet setup

Hi all,

Indoor season is here and I will be running on carpet.

Is there anybody who has a good base setup for carpet? Can you share it?

I addition to that I was wondering why almost everybody is locating the battery back. One of my main struggle with this car has been to have turn in (Ride is our controlled tires). My idea is that having the battery forward will help to have appropriate turn in, even thought the mid-end steering would be less (but I guess it can be compensate with the rear links?)

Thank you in advance!
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Old 10-15-2015, 06:51 AM
  #427  
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Originally Posted by fmm View Post
Hi all,

Indoor season is here and I will be running on carpet.

Is there anybody who has a good base setup for carpet? Can you share it?

I addition to that I was wondering why almost everybody is locating the battery back. One of my main struggle with this car has been to have turn in (Ride is our controlled tires). My idea is that having the battery forward will help to have appropriate turn in, even thought the mid-end steering would be less (but I guess it can be compensate with the rear links?)

Thank you in advance!
Are you using the stock front suspension?
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Old 10-16-2015, 12:37 AM
  #428  
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Originally Posted by CFRacing View Post
Are you using the stock front suspension?
Yes, I am.

I have also the exotek front suspension if needed but for the moment I prefer to stick to the stock front suspension due to local rules.

I have all the Ride springs for the front suspension, as week.

Thank you!
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Old 10-16-2015, 05:43 AM
  #429  
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Originally Posted by fmm View Post
Yes, I am.

I have also the exotek front suspension if needed but for the moment I prefer to stick to the stock front suspension due to local rules.

I have all the Ride springs for the front suspension, as week.

Thank you!
I'm running exotek upper arms with tamiya pins' and steering blocks on the stock lower arms,soft springs,7*caster,2*camber,3.5mm spacer on rear upper arm mount. That worked great for me.(med high bite carpet).
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Old 10-16-2015, 08:09 AM
  #430  
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Originally Posted by CFRacing View Post
I'm running exotek upper arms with tamiya pins' and steering blocks on the stock lower arms,soft springs,7*caster,2*camber,3.5mm spacer on rear upper arm mount. That worked great for me.(med high bite carpet).
Thank you very much!

Actually, I was thinking in also using the exotek upper arms with tamiya pins and steering blocks!

It would be great if you can give some more details about the whole setup . For instance:

Ride height (front and rear)
Ride height inserts
Upper link (high or low and length)
Rear shocks (oil and springs)
Battery position (forward, middle or back)

I am new on carpet, so I would really appreciate your input!

Thank you in advance!
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Old 10-16-2015, 01:15 PM
  #431  
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Originally Posted by fmm View Post
Thank you very much!

Actually, I was thinking in also using the exotek upper arms with tamiya pins and steering blocks!

It would be great if you can give some more details about the whole setup . For instance:

Ride height (front and rear)
Ride height inserts
Upper link (high or low and length)
Rear shocks (oil and springs)
Battery position (forward, middle or back)

I am new on carpet, so I would really appreciate your input!

Thank you in advance!
Ride height f4.5 R 5.0
2.0 inserts spacer in the upper pos.
Upper link 27mm upper position 1mm spacer rear ball
700 oil v2 shocks w 4 hole pistons medium shock end
Battery front esc rear batt conectors to the front
Exotek servo extension.
Hope this helps.
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Old 10-17-2015, 01:08 AM
  #432  
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Originally Posted by CFRacing View Post
Ride height f4.5 R 5.0
2.0 inserts spacer in the upper pos.
Upper link 27mm upper position 1mm spacer rear ball
700 oil v2 shocks w 4 hole pistons medium shock end
Battery front esc rear batt conectors to the front
Exotek servo extension.
Hope this helps.
Thank you!!

It helps a lot!
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Old 10-22-2015, 02:41 PM
  #433  
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Originally Posted by CFRacing View Post
I'm running exotek upper arms with tamiya pins' and steering blocks on the stock lower arms,soft springs,7*caster,2*camber,3.5mm spacer on rear upper arm mount. That worked great for me.(med high bite carpet).
Hi again!

Could you post a photo or give me some more details around how did you installed the exotek upper arms and the tamiya pins and steering block? In concrete I after how many spacers do I need to put below and above the steering uprigth

Thank you
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Old 10-23-2015, 06:37 AM
  #434  
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Originally Posted by fmm View Post
Hi again!

Could you post a photo or give me some more details around how did you installed the exotek upper arms and the tamiya pins and steering block? In concrete I after how many spacers do I need to put below and above the steering uprigth

Thank you
We run 4.5mm ride height,for that I use 2.5mm above the upright (which controls ride height) and 3mm below the upright (which controls droop).
That plus the lower arms mounted as per instructions on the car, except do not
Put the 1mm shims' between the chassis and suspension plate. I think that's about it. Hope that helps .
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Old 10-23-2015, 06:51 AM
  #435  
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Originally Posted by CFRacing View Post
We run 4.5mm ride height,for that I use 2.5mm above the upright (which controls ride height) and 3mm below the upright (which controls droop).
That plus the lower arms mounted as per instructions on the car, except do not
Put the 1mm shims' between the chassis and suspension plate. I think that's about it. Hope that helps .
Thank you very much!
What tamiya pins are you using? I using tamiya 54160 and I use 3mm under the uprigth, but I need to add 6mm above the uprigth. Am I doing something wrong? Or is it because you add 3.5 mm above the exotek arms to compete the length of the pin?

Thanks a lot
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