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Tamiya F104 Pro!

Old 10-20-2009, 08:49 PM
  #1381  
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What shock springs are those? They look nice and skinny...
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Old 10-20-2009, 10:04 PM
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Originally Posted by MaxSp97 View Post
These are some modifications of my F104.
Top plate been cut for more flex (change the chassis flex by the top screws)
5000 Thunder power battery.
Front and Rear width is 181mm.
The car is handling so much better.
I like the up-grades. Here's what I'm gonna try @ the track next time out. I've been reading about 103 front ends switching over to our 104s. Wala, here's a 3Racing hop-up 103 front susp. on my 104. I couldn't use the susp. pins from 104, too tall for 103 front wheels. The good thing is my 104 foams still fit bearing wise. The body mod was no big. I think it looks only O.K. Notice my front end wheel base has increased substantially. Have to get the calipers out! We'll see how she performs???Tamiya F104 Pro!-new-32-001.jpg

Tamiya F104 Pro!-new-32-003.jpg

Tamiya F104 Pro!-new-32-004.jpg
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Old 10-20-2009, 10:29 PM
  #1383  
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Originally Posted by veecee View Post
What shock springs are those? They look nice and skinny...
The spring is from my old Yokomo shock.
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Old 10-20-2009, 10:37 PM
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Originally Posted by zpmhinojosa View Post
I like the up-grades. Here's what I'm gonna try @ the track next time out. I've been reading about 103 front ends switching over to our 104s. Wala, here's a 3Racing hop-up 103 front susp. on my 104. I couldn't use the susp. pins from 104, too tall for 103 front wheels. The good thing is my 104 foams still fit bearing wise. The body mod was no big. I think it looks only O.K. Notice my front end wheel base has increased substantially. Have to get the calipers out! We'll see how she performs???Attachment 511975

Attachment 511976

Attachment 511977
You have some major ackerman going on there. May not be all that good with that much.
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Old 10-21-2009, 09:18 AM
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the major 104 issues, squareing corners mid corner push, can't be solved by making the front WIDER....that takes away steering
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Old 10-21-2009, 12:53 PM
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You really need to run f103 rear tires to get the rear width to be close to the front.

Ackerman looks fine, looks like most 1/12 cars out there
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Old 10-21-2009, 01:06 PM
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Just wondering has anyone played around with the steering exponential to make the car less sensitive around center? I have a feeling if the steering is linear that you're inherently going to get a squaring of turns with the design of the F104...
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Old 10-21-2009, 02:42 PM
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Looking to get an F104. But I want the F60 Bodyset.

Do I go with the F104 PRO or the F104 with the F60 bodyset?
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Old 10-21-2009, 05:01 PM
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Informal Poll about the F104

http://www.rctech.net/forum/electric...t-ferrari.html


Thanks
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Old 10-21-2009, 05:05 PM
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Originally Posted by robk View Post
You really need to run f103 rear tires to get the rear width to be close to the front.

Ackerman looks fine, looks like most 1/12 cars out there
O.K. here's what happened when I just test ran her,
But first, my tire combo: In the rear = Tamiya F103 rubbers (B), Up front = Tamiya F103 foams.

Now, I started by triming, once trimed I gunned it straight. I then turned to the right real sharp. It handled the turn, except instead of being straight once letting go of my steering, it turned to the left on it's own. My trim somehow reversed. So I re-trimed so that I was straight again. Gunned it straight again, except I turned real sharp to the left. Again, should be straight after the release, but instead it turned to the left, on it's own.

Any suggestions????:flam ing:

Last edited by zpmhinojosa; 10-21-2009 at 11:23 PM.
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Old 10-21-2009, 05:08 PM
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Bad servo, servo not centering...
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Old 10-21-2009, 05:28 PM
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Any one else? Gotta figure this out before I get called out.
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Old 10-21-2009, 05:33 PM
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Originally Posted by zpmhinojosa View Post
Any one else? Gotta figure this out before I get called out.
I agree that a bad servo is the most likely cause, however it would be worth the time to verify that the t-bar is pivoting freely with the battery in place, as well as checking the kingpins to make sure they aren't binding. Pan cars are sensitive creatures!
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Old 10-21-2009, 08:28 PM
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I just got this servo. I'm a hopeful, I'm gonna do the hand work and switch back the the original 104 front, because this didn't happen hours before I made the switch. Man, I have alot to learn!
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Old 10-21-2009, 08:47 PM
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Originally Posted by Apex View Post
Just wondering has anyone played around with the steering exponential to make the car less sensitive around center? I have a feeling if the steering is linear that you're inherently going to get a squaring of turns with the design of the F104...
I think I posted about this a while back. Playing with the radio is 80% of what changed my 104 from turd to dialed. My servo speed is reduced and the negative exponential took the twitch out of it. HUGE difference from transmitter adjustments.

Type B fronts, black front springs, and no rear spring rounded out the package. I'm pretty happy with how it handles now.
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