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Tamiya F104 Pro!

Old 06-16-2009, 12:24 AM
  #166  
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Hey einix,

Thanks for the reply!

So am I correct to say that putting the old F103 motor mount to the F104 is safe and of the same setup?

Those spacers will act as fine-tuning parts to get it to speed, so it's not so important to me. I run at stock setup for my F103.

I'm waiting for my F104 to come. It's agonising to be waiting for so long.
Thanks again in advance!
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Originally Posted by einix View Post
You may ignore the height difference if using standard setting.The F103 motor mount have a shorter post but it has a 3mm spacer under the friction plate. so the actual height are same as the F104 motor mount.

If you really wanna reduce the height of the friction plate to fine tune the car, there is still a solution. You may use the F103 C1 and using the F104 C2,C3 and C4 to build the motor mount
Originally Posted by einix View Post
The ride height is same as the F103, it even use the same S parts from the F103 to adjust the 5 different ride height.
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Old 06-16-2009, 12:31 AM
  #167  
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I think it's more like your tire setup that you aren't used to.

Regarding the high speed twitchiness, it could be your caster on the steering knuckles. Hope they can come with the hopups on kunckles too. By the way, are the knuckles the same as the F103's?

I run my F103 at my local track, with a similar F103R setup. It handles like it was on rubber tires, but with tons of speed that I am never afraid of giving it the hard cornering and accelerating. It never spins out, except for hard braking in attempt to avoid some collisions. That is all.

The F104 being longer than the F103, it should handle real smooth on the straight. It's funny how it is the opposite. IMHO, it should be the tires.
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Originally Posted by einix View Post
Sorry, i was busy to prepare for the TCS race last weekend, so didn't update here.

I did run the F104 on 1 of the qualify and here is the result (while it is an outdoor track, traction are different from time to time, so i will post the 2nd place driver who run F103R on all Qualify and main as a reference)
me:
Q1 27/5:01 -F103R
Q2 27/5:07 -F104Pro
Q3 29/5:07 -F103R TQ
main 29/5:02 -F103R A-Main 1st

reference:
Q1 28/5:08
Q2 28/5:03
Q3 28/5:00
main 29/5:09 A-Main 2nd

So i assume if I ran the F103R on the second Qualify, the result should be around 28/5:00 to 28/5:06, so currently F104 still a lap slower than the F103R on my hand and still need some work on setup.

I had talk to another driver who also drove a F104Pro
we both agreed on the following
- F104 are more stable at the in-field and easier to pass thru the traffic at the in-field. The reason is the rear is always stick to the ground, it won't spin out even you have a big movement on the steering or change the direction suddently.
- On the stright, it is a different story, it is too sensitive to our steering input, and the full throttle point before the stright are later than the F103R.
- And a funny thing we found on the F104 is, you can brake anywhere you want (an exteme example is full brake, full steering at the end of stright, the car won't spin out like F103)

And both of us think we could have a faster lap if we can true our tires, the F104 tire and wheel is sold out, so we can't try this yet.

i don't have much time to spend on the F104 last weekend, i guess if I put a harder spring at the front, I may able to get a faster lap too
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Old 06-16-2009, 07:59 AM
  #168  
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Originally Posted by robk View Post
It probably wont steer as well as the 103, but it will probably be twitchy.
Hmm....
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Old 06-16-2009, 08:15 AM
  #169  
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Default F104 Pro or F103 Anniversary

I am getting out of TC and want to get into F1 exclusively. Appears to be a lot more fun, and not as intense. My question is, would it be better to start with the F103 anniversary or jump right into the F104 Pro? Reading some of the posts here lead me to believe that the F104 could have problems in the beginning and may be a little hard to control until hopups are available. My driving skill is a little rusty and will be returning at a Novice/Intermediate level. With a little track time I will be able to run Intermediate level with confidence. Is the F103 Anniversary a more stable car out of the box?
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Old 06-16-2009, 02:48 PM
  #170  
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Originally Posted by einix View Post
Sorry, i was busy to prepare for the TCS race last weekend, so didn't update here.

I did run the F104 on 1 of the qualify and here is the result (while it is an outdoor track, traction are different from time to time, so i will post the 2nd place driver who run F103R on all Qualify and main as a reference)
me:
Q1 27/5:01 -F103R
Q2 27/5:07 -F104Pro
Q3 29/5:07 -F103R TQ
main 29/5:02 -F103R A-Main 1st

reference:
Q1 28/5:08
Q2 28/5:03
Q3 28/5:00
main 29/5:09 A-Main 2nd

So i assume if I ran the F103R on the second Qualify, the result should be around 28/5:00 to 28/5:06, so currently F104 still a lap slower than the F103R on my hand and still need some work on setup.

I had talk to another driver who also drove a F104Pro
we both agreed on the following
- F104 are more stable at the in-field and easier to pass thru the traffic at the in-field. The reason is the rear is always stick to the ground, it won't spin out even you have a big movement on the steering or change the direction suddently.
- On the stright, it is a different story, it is too sensitive to our steering input, and the full throttle point before the stright are later than the F103R.
- And a funny thing we found on the F104 is, you can brake anywhere you want (an exteme example is full brake, full steering at the end of stright, the car won't spin out like F103)

And both of us think we could have a faster lap if we can true our tires, the F104 tire and wheel is sold out, so we can't try this yet.

i don't have much time to spend on the F104 last weekend, i guess if I put a harder spring at the front, I may able to get a faster lap too
that's what I like to hear... the rest I can work on
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Old 06-16-2009, 07:35 PM
  #171  
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Originally Posted by svines1972 View Post
I am getting out of TC and want to get into F1 exclusively. Appears to be a lot more fun, and not as intense. My question is, would it be better to start with the F103 anniversary or jump right into the F104 Pro? Reading some of the posts here lead me to believe that the F104 could have problems in the beginning and may be a little hard to control until hopups are available. My driving skill is a little rusty and will be returning at a Novice/Intermediate level. With a little track time I will be able to run Intermediate level with confidence. Is the F103 Anniversary a more stable car out of the box?
What you are seeing is a lot of speculation combined with minimal running of the chassis. I think the 104 is going to be the chassis to have. I have a fleet of 103's that will go into retirement after the Nats, if I go to the Nats this year. Im a bit confused how a chassis can lack steering and be twitchy at the same time. I need to get with my hobby shop and get a 104 on order, being out of work at the moment isnt helping my ability to make big purchases either.
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Old 06-17-2009, 12:54 AM
  #172  
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Whats the most popular servo to run in these things?
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Old 06-17-2009, 01:06 AM
  #173  
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today release !
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Old 06-17-2009, 04:50 AM
  #174  
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so looks like you can place an order for this kit at towerhobbies.com as of this morning ....

any one know if a ferrari body will come out for the f104 pro kit? since this one is the mclaren
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Old 06-17-2009, 05:24 AM
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Originally Posted by BP SHADOW View Post
What you are seeing is a lot of speculation combined with minimal running of the chassis. I think the 104 is going to be the chassis to have. I have a fleet of 103's that will go into retirement after the Nats, if I go to the Nats this year. Im a bit confused how a chassis can lack steering and be twitchy at the same time. I need to get with my hobby shop and get a 104 on order, being out of work at the moment isnt helping my ability to make big purchases either.
A car that's narrower and longer with the weight centered is going to want to change directions faster, initially. That doesn't mean it will rotate hard or finish the corner well.

Obviously, things can be worked out, but the differences in general layout will produce a tendency toward a certain way of handling.
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Old 06-17-2009, 07:44 AM
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Originally Posted by robk View Post
A car that's narrower and longer with the weight centered is going to want to change directions faster, initially. That doesn't mean it will rotate hard or finish the corner well.

Obviously, things can be worked out, but the differences in general layout will produce a tendency toward a certain way of handling.
I dont totally disagree, but I think some of the problems they are seeing with the initial running are setup related, not layout related. Im thinking that experimenting with negative camber might take some of the straight line twitchtiness out of the car, as well as giving a bit more turn in
All speculation though, I wont know for sure till I build one and run it
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Old 06-17-2009, 07:58 AM
  #177  
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Ride hight CAN be adjusted .
Needs to be available with the Tamiya BL system.
Kit tires MANDITORY.
It does look very sweet ! I want one....
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Old 06-17-2009, 08:15 AM
  #178  
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Probably related, anyone noticed this yet?
Okay, apparently I have to post more to be allowed to put URL's in my posts. Goto TamiyaUSA, search "Formula-Tuned" to see the Formula-Tuned motor, with specs.
Tower Hobbies shows it as "coming soon". Seems odd to me; a high wind low RPM motor for a direct drive car?
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Old 06-17-2009, 08:35 AM
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Originally Posted by Zaurusman View Post
Probably related, anyone noticed this yet?
Okay, apparently I have to post more to be allowed to put URL's in my posts. Goto TamiyaUSA, search "Formula-Tuned" to see the Formula-Tuned motor, with specs.
Tower Hobbies shows it as "coming soon". Seems odd to me; a high wind low RPM motor for a direct drive car?
MORE GEAR!
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Old 06-17-2009, 08:37 AM
  #180  
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Toe out in the front always seems to settle my car on the straight.
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