R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 01-13-2006, 11:35 PM   #7651
OVA
Tech Champion
 
OVA's Avatar
 
Join Date: Dec 2002
Location: WASHINGTON
Posts: 8,500
Trader Rating: 67 (100%+)
Default

Quote:
Originally Posted by cody1
Race on carpet with take off 27's and car seems to be real close to being set up correctly but seems to have a bit of a on power push.Does anyone have any ideas to help me out on this problem.By the way the area I most would be interested in would be the effects that caster or kick up will have on my problem .Right now I have 4 degree blocks and .o25 kick up.Plus any other suggestions.
Sound to me is your car front end is going up during on power ,try reduce the droop ....
kick up work great for bumpy track....if the track is smooth take out the .025 ....or try with the oneway diff
__________________
I have not failed. I've just found 10,000 ways that won't work
OVA is offline   Reply With Quote
Old 01-13-2006, 11:37 PM   #7652
OVA
Tech Champion
 
OVA's Avatar
 
Join Date: Dec 2002
Location: WASHINGTON
Posts: 8,500
Trader Rating: 67 (100%+)
Default

Quote:
Originally Posted by Bob Barry
cody take all the shims out from the blocks...run the car flat. if you need more steering on power try 6 deg castor. Sounds wierd but try it. Also go to 2nd hole out for camber and no washers. That should add traction. If that doesnt work then stand the shocks up a little and try a little thinner oil with the same spring you are running. You should be somewhere near 30lb front 25lb rear for springs. around 50-70 oil in the front and 30-50 in the rear....depends on traction.

Bob
the more caster make the car coming out of the corner faster...but going in slower....
__________________
I have not failed. I've just found 10,000 ways that won't work
OVA is offline   Reply With Quote
Old 01-13-2006, 11:42 PM   #7653
OVA
Tech Champion
 
OVA's Avatar
 
Join Date: Dec 2002
Location: WASHINGTON
Posts: 8,500
Trader Rating: 67 (100%+)
Default

I think I like my BMI TC4 for now.....
__________________
I have not failed. I've just found 10,000 ways that won't work
OVA is offline   Reply With Quote
Old 01-15-2006, 11:13 AM   #7654
Tech Elite
 
Join Date: Feb 2004
Location: Maitland, FL
Posts: 2,181
Trader Rating: 17 (100%+)
Send a message via AIM to Roberto Falcon
Default

Can someone tell me how can I get more coner speed entry and out from this damn TC4 ?
__________________
Awesomatix USA - Speed Passion - Superior Hobbies
Roberto Falcon is offline   Reply With Quote
Old 01-15-2006, 03:31 PM   #7655
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,676
Trader Rating: 11 (100%+)
Default

Run a higher roll center in the Rear that you do in the front. I experimented with this over the weekend (1st time out with the car) and it made the biggest difference of all the changes I did to the car. I was running 4 tabs in the rear (f/r) and 2 tabs in the front (f/r). I was running on a medium grip HUGE asphalt track, so fast corner speeds are needed. To get good exit steering on asphalt I also believe you need either a oneway or a spool (the latter being my preference).
__________________
REFLEX RACING/ RSD/ GIZMO RACING USA/ HOBBYWING/ AXON/ QTEQ/ TEAM PRIME
CristianTabush is offline   Reply With Quote
Old 01-15-2006, 04:17 PM   #7656
Tech Elite
 
Derby Bros Racing's Avatar
 
Join Date: Nov 2003
Location: Arizona
Posts: 3,209
Trader Rating: 7 (100%+)
Default

-lower front ride height than rear (i.e. 4mm front, 5mm rear)
-tighten rear diff
-softer front springs or harder rear springs
-one way for improved getting out of the turn speed
-let of the throttle sooner
Derby Bros Racing is offline   Reply With Quote
Old 01-15-2006, 05:59 PM   #7657
Tech Regular
 
Michael Barch's Avatar
 
Join Date: Dec 2005
Location: Michigan
Posts: 261
Send a message via AIM to Michael Barch
Default

This is the servo Im going to be picking up for my TC4. Im new to racing and RC, my RTR servo went...my shop says this is good.

http://www.larrysperformancercs.com/...m=669962320412

Yay or Nah?
Michael Barch is offline   Reply With Quote
Old 01-15-2006, 06:50 PM   #7658
Tech Fanatic
 
anthony390's Avatar
 
Join Date: Apr 2005
Location: the race line to pros
Posts: 850
Send a message via AIM to anthony390
Default

Quote:
Originally Posted by Michael Barch
This is the servo Im going to be picking up for my TC4. Im new to racing and RC, my RTR servo went...my shop says this is good.

http://www.larrysperformancercs.com/...m=669962320412

Yay or Nah?

Yay or you can also get a futaba
anthony390 is offline   Reply With Quote
Old 01-15-2006, 10:23 PM   #7659
Tech Adept
 
SA_Racer's Avatar
 
Join Date: Jul 2004
Location: South Africa
Posts: 138
Unhappy

Quote:
Originally Posted by Roberto Falcon
Can someone tell me how can I get more coner speed entry and out from this damn TC4 ?
I have the same problem, I use to run foams and decided to change to rubber so had my first run on rubbers this weekend, with foams I was just as fast as anyone else through the corners but with the rubers (CS27) the car seeemed to scrub too much speed. only got 2 runs and then got rained out so didnt have much time to work on setup. I may be able to try some of the sugestions next weekend.

What made things worse is that I had so much traction on my first run that I would traction roll if I came through the turns just a little too fast. it was better on the second run but still had 2 traction rolls.

let us know how increasing the rear roll centre works out for you
SA_Racer is offline   Reply With Quote
Old 01-15-2006, 10:34 PM   #7660
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,676
Trader Rating: 11 (100%+)
Default

SA Racer:
Raising the roll center should also decrease you traction rolling.

I have found that this car is most sensitive to roll center changes rather than spring tuning. I could not personally tell much change in corner speed changing to stiffer front springs or softer. The car was still very "locked in" It seems like the rear generates a lot more traction than the front. THerefore by decreasing rear grip when raising the rear roll center, it allowed the car to rotate better in 180 degree corners after highspeed short shoots (which at my local track means 60-80 feet).

By going to a softer front spring you might get more initial steering, but not increased corner speed, you also tend to lose exit steering by doing this, which might translate into equal or less corner speed.
__________________
REFLEX RACING/ RSD/ GIZMO RACING USA/ HOBBYWING/ AXON/ QTEQ/ TEAM PRIME
CristianTabush is offline   Reply With Quote
Old 01-15-2006, 11:29 PM   #7661
Tech Adept
 
beerbarron's Avatar
 
Join Date: Sep 2005
Location: Michigan
Posts: 218
Default

Hello, I am not a perfect driver by any means but I have spent a lot of time with the car lately and I can offer my experience. I have been racing on carpet but I think it will apply. I have been back and forth between rubber and foam on this car, and I have had traction rolling problems with each setup. The tracks I have been racing at get very grippy by the end of the day.

1. Don't put traction compund on the outside front of foam tires. Clean them and start over if grip is too high. On rubber I have seen, but not tried, the sidewalls have super glue applied to them. It wont stay on long but it seemed to work.

2. Reduce the camber up front.

3. Raise the roll center. Rubber needs weight transfer to work right but if you're traction rolling you have enough grip. IMO.

4. Try a harder compound tire.






Quote:
Originally Posted by SA_Racer
I have the same problem, I use to run foams and decided to change to rubber so had my first run on rubbers this weekend, with foams I was just as fast as anyone else through the corners but with the rubers (CS27) the car seeemed to scrub too much speed. only got 2 runs and then got rained out so didnt have much time to work on setup. I may be able to try some of the sugestions next weekend.

What made things worse is that I had so much traction on my first run that I would traction roll if I came through the turns just a little too fast. it was better on the second run but still had 2 traction rolls.

let us know how increasing the rear roll centre works out for you
beerbarron is offline   Reply With Quote
Old 01-16-2006, 12:06 AM   #7662
Tech Adept
 
SA_Racer's Avatar
 
Join Date: Jul 2004
Location: South Africa
Posts: 138
Default

Cristian

Thanks for the info, ill let you guys know the outcome, what do you guys prefer on asphalt, foam or rubber?

also does anyone here have a good base setup for medium size, medium grip asphalt using rubber.

Thanks
Peter
SA_Racer is offline   Reply With Quote
Old 01-16-2006, 12:11 AM   #7663
Tech Addict
 
bummy's Avatar
 
Join Date: Sep 2005
Location: bathurst nsw
Posts: 525
Send a message via MSN to bummy
Default

you guys might not agree but i really like the pro-line v-rage tyres. for carpet , i find them the best comprimise between foam and slicks
and the foam i used was fast tyres and slicks were take-offs 27s
just my 2 cent worth
bummy is offline   Reply With Quote
Old 01-16-2006, 01:03 AM   #7664
Tech Adept
 
SA_Racer's Avatar
 
Join Date: Jul 2004
Location: South Africa
Posts: 138
Default

Quote:
Originally Posted by beerbarron
Hello, I am not a perfect driver by any means but I have spent a lot of time with the car lately and I can offer my experience. I have been racing on carpet but I think it will apply. I have been back and forth between rubber and foam on this car, and I have had traction rolling problems with each setup. The tracks I have been racing at get very grippy by the end of the day.

1. Don't put traction compund on the outside front of foam tires. Clean them and start over if grip is too high. On rubber I have seen, but not tried, the sidewalls have super glue applied to them. It wont stay on long but it seemed to work.

2. Reduce the camber up front.

3. Raise the roll center. Rubber needs weight transfer to work right but if you're traction rolling you have enough grip. IMO.

4. Try a harder compound tire.

Thanks BeerBaron, I did find reducing camber helped a bit, im on 1deg al the way round. raising the rollcenter is what ill be trying next.
SA_Racer is offline   Reply With Quote
Old 01-16-2006, 04:11 AM   #7665
Tech Addict
 
bummy's Avatar
 
Join Date: Sep 2005
Location: bathurst nsw
Posts: 525
Send a message via MSN to bummy
Default

not sure which Schottky Diode to buy? as in specs? if anyone can help me that would be great thanks
bummy is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Team Losi XXXS G+ with parts!! Team Orion V2 Hitec 5625 cola R/C Items: For Sale/Trade 9 06-18-2008 08:11 PM
BATTERIES - Team Orion 4200 SHO Team Cells (6 cell) packs................... For Sale 2-Bad Australia For Sale/Trade 0 03-21-2008 02:16 AM
New Items for Sale Tamiya F103gt Chassis Kit, Team Much More CTX-D, Novak, Team Orion Tsquare R/C Items: For Sale/Trade 14 04-17-2007 08:29 PM
>>> BRAND STINKING NEW NEVER RAN TEAM JAMMIN FACTORY TEAM FTE RACING BUGGY <<<< mach51 R/C Items: For Sale/Trade 5 01-25-2007 09:13 PM
F/S Team Associated Factory Team RC18T with Mamba Comp X Brushless and Extras ZeroCool101 R/C Items: For Sale/Trade 7 01-07-2006 01:54 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 10:48 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0