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Old 08-04-2004, 02:16 AM   #931
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Default Finally built it!

EVO3 ball diff in the front, Yoko black soft springs, Yoko battery bar (why do Tamiya supply that flimsy plastic P.O.S.?), Hitec 625MG steering, Novak XRS speedo, Matrix V10 motor. 1432g all up with Sanyo 3000HV pack
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Old 08-04-2004, 02:23 AM   #932
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Quote:
Originally posted by JDM_DOHC_SiR
The Squat Golds that I have on the EVO4 are the most free spinnig bearings I have ever had..even better than my Ceramics on my Pro4
but I can only use them every were on the car..but in the hubs because Squate does not make the 950 size in the Gold bearing..
pretty much these Gold bearings need "NO PREP"
-Dave
I found the only bearings that gave a problem were the ones in the hubs. All the rest seemed free. I ran it in with a sacrificial motor at 4V for about half an hour and it all seems reasonably OK now.

Incidentally, forgot to mention. I found a 0.3 shim in addition to the 0.1 on the short side of the diff worked fine.
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Old 08-04-2004, 02:24 AM   #933
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Default Re: test results

Quote:
Originally posted by madjack
If the lap times are any indicator, the EVO4 should be a very competitive car. D Jun turned laps in the high 12's at Tamiya America last Saturday.

Clearly the car has great corner speed with the new suspension arms...I would be very surprised if Tamiya did not sell a bunch of the arm converstion kits to 415 & EVO3 owners.
For a comparison...What is typial to expect at Tamiya Raceway (laptimes)

Does the new suspension conversion come with the new, smaller bearings that go in the knuckles?

For getting Tech Racing stuff, Is there a place where I can actually look at a picture of what I'm shopping for & see a price right away? I don't like the interface of Rainbow Ten's website.
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Old 08-04-2004, 02:45 AM   #934
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Smile What to Watch.

Quote:
Originally posted by V12
Iīm still watching F1. What else could you watch as a fan of motorsports? Even LeMans racing isnīt the same as before.
Hi, im new to rctech, this is my first post. Why not try the Motors TV channel, they usually have a good range of worldwide motorsport every day.
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Old 08-04-2004, 02:56 AM   #935
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Exclamation EVO IV 2-way diff.

Quote:
Originally posted by FW05R
now when you say "but a little more time with the EVO4 and it should be right up there" do you mean as time goes by and you use the car more the drivetrain will get looser OR are you planning on upgrading the bearings
I just got my EVO IV, and i know what ure taling about. When the car is first built, you'll find that the 2- way diff is really stiff. To cure this, if you have an LRP Pulsar peak charger or something with a motor run-in option, connect the charger to the motor and leave it running at about 4v for 15 to 20 minutes. This should loosen them up a bit.
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Old 08-04-2004, 03:25 AM   #936
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Default Re: EVO IV 2-way diff.

Quote:
Originally posted by EVO4man
I just got my EVO IV, and i know what ure taling about. When the car is first built, you'll find that the 2- way diff is really stiff. To cure this, if you have an LRP Pulsar peak charger or something with a motor run-in option, connect the charger to the motor and leave it running at about 4v for 15 to 20 minutes. This should loosen them up a bit.
who are you?
i also have an evo4 and i only know one other person in london whos got one.
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Old 08-04-2004, 03:27 AM   #937
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Default Re: EVO IV 2-way diff.

Quote:
Originally posted by EVO4man
I just got my EVO IV, and i know what ure taling about. When the car is first built, you'll find that the 2- way diff is really stiff. To cure this, if you have an LRP Pulsar peak charger or something with a motor run-in option, connect the charger to the motor and leave it running at about 4v for 15 to 20 minutes. This should loosen them up a bit.
also what is a 2 way diff?
do you mean a normal front diff or 1 way diff?
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Old 08-04-2004, 03:30 AM   #938
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what compound are the tamiya tyres that come with the evo4?
are they type a's?they seem very soft apart from the inserts.
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Old 08-04-2004, 04:59 AM   #939
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Default Re: Re: EVO IV 2-way diff.

Quote:
Originally posted by trf racer
also what is a 2 way diff?
do you mean a normal front diff or 1 way diff?
Peter, it is Alex.

A two-way diff is a standard ball diff
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Old 08-04-2004, 07:24 AM   #940
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Quote:
Originally posted by rc-zombies
Is that right... so I can use my LW delrin outdrives from my F201 for the Evo-IV? lmk before I sell my F201
i dont think that quite works... the F201 has different spacing, as i recall.

on a side note... anyone using the diff covers? i am electing to leave them off. just got the driveline built last night, and try to finish up ths eve...
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Old 08-04-2004, 09:26 AM   #941
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Default Re: Re: test results

Quote:
Originally posted by The Black Kat
For a comparison...What is typial to expect at Tamiya Raceway (laptimes)
The best lap I've ever done is 13.15. I think Reinhard and Hara did 12.8somethings at this year's Reedy Race. Typically a good laptime is somewhere in the low 13 to mid-high 13's. Usually they're in the mid-high 13's to low 14's. Of course, this is with a mod motor. Evidently DJ just raised the bar a bit.

19T fastest lap is a 13.9 and it's only been done a handfull of times. Typically they're in the low 14's to high 14's.

This is with an open layout. Don't know what are good laps with a stock motor or 23T...

Quote:
Originally posted by tamiyadriver
on a side note... anyone using the diff covers? i am electing to leave them off. just got the driveline built last night, and try to finish up ths eve...
Use the diff covers. There will be less dirt getting in and less diff rebuilding. Besides, the diff covers do not affect the free-ness of the drivetrain as they don't ride anywhere near the bearings.
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Old 08-04-2004, 09:50 AM   #942
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Quote:
Originally posted by tamiyadriver
i dont think that quite works... the F201 has different spacing, as i recall.

on a side note... anyone using the diff covers? i am electing to leave them off. just got the driveline built last night, and try to finish up ths eve...
Up to you if you leave them off, but I wouldn't, IMHO. Any rubbish whatever allowed in will slowly eat your diff(s)
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Old 08-04-2004, 09:53 AM   #943
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Default

Quote:
Originally posted by EVOtech
Up to you if you leave them off, but I wouldn't, IMHO. Any rubbish whatever allowed in will slowly eat your diff(s)
When I had my Alex 'Cuda with open diffs... I never had any problems with dirt or rocks getting in or abnormal diff wear.
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Old 08-04-2004, 09:54 AM   #944
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Default Re: Re: EVO IV 2-way diff.

Quote:
Originally posted by trf racer
who are you?
i also have an evo4 and i only know one other person in london whos got one.
Anyway, are yiou talking about me as being the only other one......?
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Old 08-04-2004, 09:56 AM   #945
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Quote:
Originally posted by rc-zombies
When I had my Alex 'Cuda with open diffs... I never had any problems with dirt or rocks getting in or abnormal diff wear.
thats kinda what i was thinking... my Cuda's have never suffered any probs with being open. prolly depends on the surface. parking lot might be safer with 'em.
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