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Old 08-10-2009, 02:52 AM   #1396
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It took me 2 days to finish reading this thread, now, my eyes really hurt!!!

I recently pick up the RC hobby again after quitting for 12 yrs and bought a RC12R5. Have been an AE 1:12 fans since the beginning of the hobby. Lastnight I had my first ride in a local track, asphalt. 12 yrs ago in Toronto, I was racing on carpet with foam tires, so I assume my foam/carpet knowledge doesn't apply on the rubber/asphalt. I am now starting off as a noob, with all the new technology, brushless, digitial servo, more adjustable car kits, and most importantly, NEW DRIVING STYLE - apply brakes, and etc.

After 3packs of test drive and changed some setting in the springs, I found out that it ran very smooth on straight (De-tweaked) but I wasn't going full throttle all the way, afterall it was my frist ride after 12yrs and I am not planning to total my R5 yet. My R5 wasn't very fast anyway due to low rollout. Anyhow, I felt that it was understeer at corner entry (i.e the 1st corner after striaght way), but steering kicks-in in a sudden and become oversteer in mid corner and corner exit when it slows down - I never fully let go the throttle, about 1/5-1/6 throttle. I know that if I let go the throttle I would spinned out. Anyway, the rear still feels a bit loose, not enough grip. But in the infield low speed corners, it was just fine.

The people there are ALL running CRC and claiming CRC is the best, but with no offence, I don't agree! I think if the car is setup properly, every car is pretty much the same, all depends on the driver!!! Anyway, no one there was able to help me with the only R5 there. I also test drive my friend's CRC, it goes anywhere I want it and I can predict how the car goes around corners, after 2-3 laps, I was already able to get closer and closer to the corners and feels more speed are needed as the CRC gave me more confident. I hope you know what I mean here.

Track info:
Low-med grip asphalt
Size: 50m X 30m
Full throttle straightway is about 40m
Infield: intermediate
Environment: Outdoor with roof shading, temperature about 28-30C, track temp unknown.


Currently, my setup:
Link setup
Camber: 1.5degree
Toe in: 1degree
Caster: the upper suspension arms mounted with the 10 degree holes and the caster spacer at 3.25 degree.
Front Spring: 0.018" with 2 shim on top
Shock Spring: Golden (No preload at all)
Side Spring: Blue
Rear Track Width: 170mm (I have 7 rear axles shim (AE Parts No. 4554) each side)
Ride Heigh: (F) 3.5mm / (R) 4mm
Damper Oil: as per manual, 20wt for side and 30wt for centre.
Diff: quite loose, I can just move the spur if I hold onto the rear tires.
Tires: (F) Jaco Purple / (R) Jaco Pink
Traction Compound: Paragon FXII / Ground Effect: (F) 1/4 tires width / (R) full tires (I tried both compound on 2 set of tires)
Motor: Brushless 10.5
Tire Size: 44mm F / 46mm R
Spur/Pinion: 64pitch - 98 /23 tooth
ESC: KO BMS VFS Ver1.5, Soft Profile
Battery: Lipo 2C 2200mah 20C
- I will be running on 1C Lipo, in fact, I have bought the SMC 1C 4900 already and waiting for the voltage booster to arrive. I was thinking if I can setup my car well enough for higher speed, I should have no problem running with the 1C.
- This cheap cheap USD12.00 2C 2200mah Lipo is about the size of 1C Lipo. Believe me, it doesn't feel as powerful as the normal size 2C for touring cars and much shorter run time.
Radio Setting: all setting at neutral, Travel: 38%.




Q1: What is a good starting setup for asphalt? I want a easy to drive car which I can predict and can drive comfortably, like my friend's CRC!!
- Springs (Front, side, shocks)?
- Tires? I prefer Jaco, since it is what available in the LHS.
- Ride Height?
- etc?


Q2: the 2 major problem I am having now are "sudden-steer-kicks-in" at high speed corners and not enough grip at the rear. Does caster setting have anything to do with it? Any suggestion on how to fix it?


Q3: Forgive my stupidity, I know that some of the Pros are running rear track width 172mm. How do they do it? By using plenty of Rear Axles Shims (AE Parts No.: 4554)? I currently have 7shims each side to make it 170mm, so I wonder how many are needed each side? is there any particular AE or other brand parts that will do the job?

Q4: How do you measure droop (front / rear) in a 1:12?

Q5: 12yrs ago, we used 14gauge wire on 1:12, so it is what I am using now and I didn't notice any probelm in the maneuverability of the rear pod. People at the track were telling me to use 16gauge, I wonder is it enough to withstand the heat? 16 or 14 guage? Any comment?


Any suggestion is welcome. Thank you very much.

Alan

Last edited by awth; 08-10-2009 at 03:05 AM.
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Old 08-10-2009, 12:04 PM   #1397
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Quote:
Originally Posted by awth View Post
It took me 2 days to finish reading this thread, now, my eyes really hurt!!!

I recently pick up the RC hobby again after quitting for 12 yrs and bought a RC12R5. Have been an AE 1:12 fans since the beginning of the hobby. Lastnight I had my first ride in a local track, asphalt. 12 yrs ago in Toronto, I was racing on carpet with foam tires, so I assume my foam/carpet knowledge doesn't apply on the rubber/asphalt. I am now starting off as a noob, with all the new technology, brushless, digitial servo, more adjustable car kits, and most importantly, NEW DRIVING STYLE - apply brakes, and etc.

After 3packs of test drive and changed some setting in the springs, I found out that it ran very smooth on straight (De-tweaked) but I wasn't going full throttle all the way, afterall it was my frist ride after 12yrs and I am not planning to total my R5 yet. My R5 wasn't very fast anyway due to low rollout. Anyhow, I felt that it was understeer at corner entry (i.e the 1st corner after striaght way), but steering kicks-in in a sudden and become oversteer in mid corner and corner exit when it slows down - I never fully let go the throttle, about 1/5-1/6 throttle. I know that if I let go the throttle I would spinned out. Anyway, the rear still feels a bit loose, not enough grip. But in the infield low speed corners, it was just fine.

The people there are ALL running CRC and claiming CRC is the best, but with no offence, I don't agree! I think if the car is setup properly, every car is pretty much the same, all depends on the driver!!! Anyway, no one there was able to help me with the only R5 there. I also test drive my friend's CRC, it goes anywhere I want it and I can predict how the car goes around corners, after 2-3 laps, I was already able to get closer and closer to the corners and feels more speed are needed as the CRC gave me more confident. I hope you know what I mean here.

Track info:
Low-med grip asphalt
Size: 50m X 30m
Full throttle straightway is about 40m
Infield: intermediate
Environment: Outdoor with roof shading, temperature about 28-30C, track temp unknown.


Currently, my setup:
Link setup
Camber: 1.5degree
Toe in: 1degree
Caster: the upper suspension arms mounted with the 10 degree holes and the caster spacer at 3.25 degree.
Front Spring: 0.018" with 2 shim on top
Shock Spring: Golden (No preload at all)
Side Spring: Blue
Rear Track Width: 170mm (I have 7 rear axles shim (AE Parts No. 4554) each side)
Ride Heigh: (F) 3.5mm / (R) 4mm
Damper Oil: as per manual, 20wt for side and 30wt for centre.
Diff: quite loose, I can just move the spur if I hold onto the rear tires.
Tires: (F) Jaco Purple / (R) Jaco Pink
Traction Compound: Paragon FXII / Ground Effect: (F) 1/4 tires width / (R) full tires (I tried both compound on 2 set of tires)
Motor: Brushless 10.5
Tire Size: 44mm F / 46mm R
Spur/Pinion: 64pitch - 98 /23 tooth
ESC: KO BMS VFS Ver1.5, Soft Profile
Battery: Lipo 2C 2200mah 20C
- I will be running on 1C Lipo, in fact, I have bought the SMC 1C 4900 already and waiting for the voltage booster to arrive. I was thinking if I can setup my car well enough for higher speed, I should have no problem running with the 1C.
- This cheap cheap USD12.00 2C 2200mah Lipo is about the size of 1C Lipo. Believe me, it doesn't feel as powerful as the normal size 2C for touring cars and much shorter run time.
Radio Setting: all setting at neutral, Travel: 38%.




Q1: What is a good starting setup for asphalt? I want a easy to drive car which I can predict and can drive comfortably, like my friend's CRC!!
- Springs (Front, side, shocks)?
- Tires? I prefer Jaco, since it is what available in the LHS.
- Ride Height?
- etc?


Q2: the 2 major problem I am having now are "sudden-steer-kicks-in" at high speed corners and not enough grip at the rear. Does caster setting have anything to do with it? Any suggestion on how to fix it?


Q3: Forgive my stupidity, I know that some of the Pros are running rear track width 172mm. How do they do it? By using plenty of Rear Axles Shims (AE Parts No.: 4554)? I currently have 7shims each side to make it 170mm, so I wonder how many are needed each side? is there any particular AE or other brand parts that will do the job?

Q4: How do you measure droop (front / rear) in a 1:12?

Q5: 12yrs ago, we used 14gauge wire on 1:12, so it is what I am using now and I didn't notice any probelm in the maneuverability of the rear pod. People at the track were telling me to use 16gauge, I wonder is it enough to withstand the heat? 16 or 14 guage? Any comment?


Any suggestion is welcome. Thank you very much.

Alan
Maybe start out using one of the setups from this page http://67.199.85.166/racing/setups.php
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Old 08-10-2009, 01:07 PM   #1398
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Quote:
Originally Posted by Apex View Post
Maybe start out using one of the setups from this page

I did start with Levanen's RCS Thailand setup, where I think we have similar weather and temp. Played around with the springs and ended up with my current setup as listed above.
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Old 08-10-2009, 01:09 PM   #1399
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you might get rid of some of that front toe in
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Old 08-10-2009, 06:23 PM   #1400
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Looks like an updated 12R5 with some new parts for the pod...

http://www.redrc.net/2009/08/associa...51/#more-21550
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Old 08-10-2009, 06:42 PM   #1401
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So what are the new part numbers to convert a 12R5 to a 12R5.1? Looks like it's a whole new rear pod, right?
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Old 08-10-2009, 06:45 PM   #1402
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Looks like an entire new rear pod to me. I like the looks of it. I probably will just order me an entire new kit and sell the current one just for the fun of building a new kit.
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Old 08-10-2009, 06:53 PM   #1403
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It looks like it has a hint of the BMI DB12rr look to it with the cross brace.
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Old 08-11-2009, 01:57 AM   #1404
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That is the 10r5 oval rear pod with a new top plate. They were running these at snowbirds.
So you would need the 10r5 bottom plate, top plate, side bulkheads and the connecting tube.
Attached is a photo from snowbirds
Attached Thumbnails
Associated RC12R5-12r5-oval-pod.jpg  
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Old 08-11-2009, 11:43 AM   #1405
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Yes new 12R5.1 had manual or parts no. upgrade ?
12R5 $168 now !
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Old 08-11-2009, 12:02 PM   #1406
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Default 1S lipo set up updated

I have given an updated set up sheet to the webmaster at AE.
Not a lot of changes but some little things I found to be better than the first set up I posted.
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Old 08-11-2009, 12:26 PM   #1407
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Quote:
Originally Posted by Sean Cochran View Post
I have given an updated set up sheet to the webmaster at AE.
Not a lot of changes but some little things I found to be better than the first set up I posted.
have link ?
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Old 08-11-2009, 12:41 PM   #1408
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This is the response that I just received from Associated concerning the new 12R5.1:

Response:

Ok the only difference is that the rear pod is optimized for brushless motors. Just like you have already done.



Bill Martinez

Customer Support Specialist

Associated Electrics, Inc

Tel: +1 (949) 544-7500 Ext: 2115

Fax: +1 (949) 544-7501

Email: [email protected]




From: UltraM[email protected] [mailto:[email protected]]
Sent: Monday, August 10, 2009 7:34 PM
To: AE CustomerService
Subject: Kit Service



Hello,



I just purchased a 12R5 kit last week from Amain Hobbies and just got in the mail. I also ordered all the parts from the 10R5 to make it a centered rear pod chassis. Now I just read on your home page that Associated is releasing the 12R5.1 kit... what is the main difference in the 2 kits. Will there be an upgrade conversion kit available or will I need to buy a whole new kit?



Please let me know what the part numbers are so I can put them on order at my local hobby shop if my 12r5 can be converted to the new 12R5.1 version.



Thank you!!



Marvin Brannon
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Old 08-11-2009, 12:55 PM   #1409
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Quote:
Originally Posted by HaraR40 View Post
What rollout should i aim for?

i have a 10.5t purple roche brushless motor and will be getting a GTB 4-cell speedy running 4cell nimh batteries. Spur gear is a 72t and will be using Jaco Prisms.
We are going to be playing around with track designs on a twin tenis court size area. i guess that would make it a medium size track?
i hope this is enough info, if someone can please help?

Thanks
Alex
Did you end up working anything out with your car alex?
Im new to 12th scale and only ran my 12r5 for the first time last weekend. From what i can tell tyres are most important thing to start with and your best bet is pink rears purple fronts. Double pink fronts will give you more steering but will wear faster.

I think standard kit setup might be ok, but a few people seem to be using a stiffer blue spring on the center shock. As for rollout i think you need something big like around 58mm but dont quote me on that. Its also going to be dependent on how you setup your speedie and timing on the motor although i think the prince has fixed timing
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Old 08-11-2009, 01:23 PM   #1410
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Quote:
Originally Posted by RC MARKET View Post
have link ?
The set up is not on the site yet but will be later today or tommorow.
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