Go Back  R/C Tech Forums > General Forums > Electric On-Road
Barracuda from Alex racing >

Barracuda from Alex racing

Like Tree1Likes

Barracuda from Alex racing

Old 12-08-2002, 10:58 PM
  #481  
fai
Regional Moderator
 
fai's Avatar
 
Join Date: Aug 2001
Location: Hong Kong
Posts: 765
Default

Dear all, I'm now running with all hex balls normally (not inverted) but with 0.75mm shims under front balls of front A-arms and 0.5mm shims under front balls of rear A-arms. When comparing this with no shims, I found that the most significant difference is the improved ability of on-power steering out of the corner. This may due to the increased caster and also rear anti-squat... Just sharing my little settings!
fai is offline  
Old 12-09-2002, 02:25 AM
  #482  
Tech Elite
iTrader: (11)
 
Diva's Avatar
 
Join Date: Aug 2001
Location: Delaware
Posts: 2,908
Trader Rating: 11 (100%+)
Default

Originally posted by fai
I read through the setting sheet of the champion of JMRCA 23T: he inverted all eight hex balls upside-down, and then placed 0.5mm shims under the front balls of front A-arms and front balls of rear A-arms!

Diva, does the expert set it in this way??
Actually I don't quite get what he explained. Too many theories behind.
Diva is offline  
Old 12-09-2002, 02:28 AM
  #483  
Tech Elite
iTrader: (11)
 
Diva's Avatar
 
Join Date: Aug 2001
Location: Delaware
Posts: 2,908
Trader Rating: 11 (100%+)
Default

Originally posted by fai
Dear all, I'm now running with all hex balls normally (not inverted) but with 0.75mm shims under front balls of front A-arms and 0.5mm shims under front balls of rear A-arms. When comparing this with no shims, I found that the most significant difference is the improved ability of on-power steering out of the corner. This may due to the increased caster and also rear anti-squat... Just sharing my little settings!
Have you tried putting shims under the rear balls of the front arms? Yes, anti-kick-up. Tamiya driver Surikarn Chaidajsuriya did that to his 414. I tried it in my BB (blue barracuda) and it works great in off-power cornering.
Diva is offline  
Old 12-09-2002, 03:59 AM
  #484  
fai
Regional Moderator
 
fai's Avatar
 
Join Date: Aug 2001
Location: Hong Kong
Posts: 765
Default

Originally posted by Diva
Have you tried putting shims under the rear balls of the front arms? Yes, anti-kick-up. Tamiya driver Surikarn Chaidajsuriya did that to his 414. I tried it in my BB (blue barracuda) and it works great in off-power cornering.
Oh, I also noticed Surikarn has done that in order to reduce kick-up of his 414M!

Yes, I tried this at the first time I put my Barracuda on track! I put 0.5mm shims...Off-power steering is great...but when you throttle, the car really didn't want to steer!!!

This may not be caused by the adding of 0.5mm shims... Maybe my car wasn't set up properly for its first run!

Diva, you run your BB at PYC?
fai is offline  
Old 12-09-2002, 06:52 AM
  #485  
Tech Champion
iTrader: (31)
 
JDM_DOHC_SiR's Avatar
 
Join Date: Aug 2002
Location: Chula Vista, CA
Posts: 9,087
Trader Rating: 31 (100%+)
Thumbs up Good info keep it coming

Now that we are all on the subject of set up's and such what all some of your set up's that you all run

And are any of you guys using sway bars.?? In Japan the norm seems to be the 1.2mm up front and 1.4 in the rear with the normal sus arms... and with the PAL arms it seems to be the 1.6mm front and 1.4~1.8 in the rear... case by case..(track conditions)

Keep the info coming
-Dave
JDM_DOHC_SiR is offline  
Old 12-09-2002, 08:02 AM
  #486  
Tech Elite
iTrader: (11)
 
Diva's Avatar
 
Join Date: Aug 2001
Location: Delaware
Posts: 2,908
Trader Rating: 11 (100%+)
Default

Yes, [email protected] Usually Sat afternoon.

Originally posted by fai
Oh, I also noticed Surikarn has done that in order to reduce kick-up of his 414M!

Yes, I tried this at the first time I put my Barracuda on track! I put 0.5mm shims...Off-power steering is great...but when you throttle, the car really didn't want to steer!!!

This may not be caused by the adding of 0.5mm shims... Maybe my car wasn't set up properly for its first run!

Diva, you run your BB at PYC?
Diva is offline  
Old 12-09-2002, 08:04 AM
  #487  
Tech Elite
iTrader: (11)
 
Diva's Avatar
 
Join Date: Aug 2001
Location: Delaware
Posts: 2,908
Trader Rating: 11 (100%+)
Default

At pyc I have no problem of on-power steering. What's your rear toe-in. Mine is only 2.

Originally posted by fai
Oh, I also noticed Surikarn has done that in order to reduce kick-up of his 414M!

Yes, I tried this at the first time I put my Barracuda on track! I put 0.5mm shims...Off-power steering is great...but when you throttle, the car really didn't want to steer!!!

This may not be caused by the adding of 0.5mm shims... Maybe my car wasn't set up properly for its first run!

Diva, you run your BB at PYC?
Diva is offline  
Old 12-09-2002, 10:16 AM
  #488  
Tech Champion
iTrader: (31)
 
JDM_DOHC_SiR's Avatar
 
Join Date: Aug 2002
Location: Chula Vista, CA
Posts: 9,087
Trader Rating: 31 (100%+)
Thumbs up My set up for'CUDA'with PAL short arms

Front shocks 2nd from outside on top/ lower outboard on the bottom. 30 weight & HPI Pink spring. (59mm shock lenght)


Rear Shocks 3rd position from outside/ lower outboard on the bottom. 30 weight & HPI Pink spring. (62mm shock length)

1 deg toe out front with 1.5 deg camber. (5 deg caster)

2 deg toe in rear with 1 deg camber.

4.5mm front ride height with with 2mm droop

5mm rear ride height with 2mm droop

1.2 mm sway bars front & 1.6 mm rear

Sorex 32 tires with HPI red inserts

front double one way with center drive shaft one way.

and 25 grams of weight added to motor side.

this set up is for a very tight small track with a straight of 130m

-Dave

http://improve.cool.ne.jp/image/CourseD.jpg
JDM_DOHC_SiR is offline  
Old 12-09-2002, 01:32 PM
  #489  
Tech Addict
 
LeoChan's Avatar
 
Join Date: Nov 2002
Posts: 568
Default Barracuda setup

but your camber too big will in turn apex more traction will can not faster
and how many your F & R kick up & anti squat ?
LeoChan is offline  
Old 12-09-2002, 04:57 PM
  #490  
Tech Regular
 
Join Date: May 2002
Location: TrAsH_CaN
Posts: 469
Default Qns on Building Shocks

could anyone describe in details the correct way to build the "Yokomo" type shocks???i never had to build a shock which need to be filled from the bottom??does the shock needs a lil bit of rebound after building it??
thanks
fReShJiVe is offline  
Old 12-09-2002, 11:02 PM
  #491  
fai
Regional Moderator
 
fai's Avatar
 
Join Date: Aug 2001
Location: Hong Kong
Posts: 765
Default

Dear all, oops! I made a mistake yesterday: JMRCA 23T champion setting should be all hex balls upside-down and then all with 0.5mm shims under. This acts as the basic set-up. Then add shims to front balls of front a-arms in order to have a total 1 degree kick-up!
fai is offline  
Old 12-09-2002, 11:03 PM
  #492  
fai
Regional Moderator
 
fai's Avatar
 
Join Date: Aug 2001
Location: Hong Kong
Posts: 765
Default

Originally posted by Diva
At pyc I have no problem of on-power steering. What's your rear toe-in. Mine is only 2.
Oh! Mine is >=3 degree!
fai is offline  
Old 12-09-2002, 11:07 PM
  #493  
fai
Regional Moderator
 
fai's Avatar
 
Join Date: Aug 2001
Location: Hong Kong
Posts: 765
Default Re: My set up for'CUDA'with PAL short arms

Originally posted by JDM_DOHC_SiR
Front shocks 2nd from outside on top/ lower outboard on the bottom. 30 weight & HPI Pink spring. (59mm shock lenght)


Rear Shocks 3rd position from outside/ lower outboard on the bottom. 30 weight & HPI Pink spring. (62mm shock length)

1 deg toe out front with 1.5 deg camber. (5 deg caster)

2 deg toe in rear with 1 deg camber.

4.5mm front ride height with with 2mm droop

5mm rear ride height with 2mm droop

1.2 mm sway bars front & 1.6 mm rear

Sorex 32 tires with HPI red inserts

front double one way with center drive shaft one way.

and 25 grams of weight added to motor side.

this set up is for a very tight small track with a straight of 130m

-Dave

http://improve.cool.ne.jp/image/CourseD.jpg
JDM: I always run with 1.2mm sway bar front/rear! For camber, I used 0.5 degree front/rear as this gives more even tire wear!
fai is offline  
Old 12-09-2002, 11:21 PM
  #494  
fai
Regional Moderator
 
fai's Avatar
 
Join Date: Aug 2001
Location: Hong Kong
Posts: 765
Default Re: Qns on Building Shocks

Originally posted by fReShJiVe
could anyone describe in details the correct way to build the "Yokomo" type shocks???i never had to build a shock which need to be filled from the bottom??does the shock needs a lil bit of rebound after building it??
thanks
I'm also new to this type of dampers before having a Barracuda! However being advised by my local track expert, and doing tests/trials myself, I think I can share my little tips:

Pour oil from the top just like ordinary dampers until the oil "pops-up" a little bit. Then fill the cap half-way with oil. Now, you are ready to screw the cap onto the body. Your action should be fast. (Be careful not to strip the cap coz of your "fast" action!
) Now, the outlook is like a finished damper but you found you cannot press the shaft in. So, you must unsrew the cap nearly a turn and press the shaft in, in order to leak some excess oil out! This should be repeated for a few times until you got your desired rebound!

For rebound, he set my dampers as this way:
The front damper rebounds faster than the rear one. Approx. you saying the word "one" and the shaft be completely pushed out! For the rear, it should have the timing "one, two"!

Hope this help... Any kindly comments?
fai is offline  
Old 12-10-2002, 01:21 AM
  #495  
Tech Regular
 
Join Date: May 2002
Location: TrAsH_CaN
Posts: 469
Default

fai-thank you for the detail explaanation...i will try that when i rebuilt the shock

i ran the car today and stripped spur gear as if im changing battery packs....why is that so???should i get the one piece motor mount???does anyone use the motor mount set from "Square"??

verdict:-
stock setting desperately need more off power steering will do some setup changes when i solve the spur problems.....noticable torque steer...will add weight on motor side...

by the way any recommendation on one piece motor mount??one flag seems to be way on the high side of pricing
fReShJiVe is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.