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Old 06-20-2007, 08:55 PM   #20311
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Originally Posted by Darkseid View Post
I plan on trying a diff in the front of the car for our outdoor asphalt race this weekend. I've been really happy with the PW set up I've been using. But I have to give the diff a try. If I can get it to work close to the spool set up, without the worry of breaking universals, then I'll be really happy. I've heard that running the front diff really tight, will give similar feel to the spool without the wear and tear, anyone tried this?

Any tips about alterations I may need to make to the PW set up? Or any other tips from anyone who has tried the car with a front diff, would be appreciated.

as AWD said, I have been running the REALLY tight diff with alot of success. We run on really low traction, and when i was at another track - the spool worked best there.

my diff is super tight - it just gives a little if needed. when you hand turn the front wheels, it actually turns all 4 wheels just like a spool....this really helped calm the front end down.

For those running carpet rubber on low bite - I am basically running Chris Ashton's carpet setup but I have added the stock sway bar in the rear, thin sway bar up front, added the diff, and stood the rear shocks up one hole - and my car is DIALED - i am loving it.

I am actually looking now for a little more off power initial steering, but just a smidge - any suggestions?
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Old 06-20-2007, 11:19 PM   #20312
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*cough*

more rear droop . . .
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Old 06-20-2007, 11:26 PM   #20313
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no, go down to 35wt oil.
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Old 06-21-2007, 05:31 AM   #20314
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hey guys how much lighter is the mi3 over the ec?
also how u like the new sphere tc version? any one thermall yet?
cheers, josh P

I don't believe it is any lighter at all, possibly slightly heavier.

I saw quite a few people running the Nosram version of the sphere TC, the one with the fan on top and didn't see anyone having any obvious troubles. I also have one but have only used it with brushed motors so far, didn't even start to get warm.
The fan on it is very fast and noisy so I shouldn't think heat will be a problem.

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Old 06-21-2007, 06:53 AM   #20315
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I am actually looking now for a little more off power initial steering, but just a smidge - any suggestions?
i'm a foam guy, but i like a shorter front link here. 2mm ought to do the trick. the car will react quicker, AND have more steering, primarily off power when the suspension is compressed the most.
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Old 06-21-2007, 07:03 AM   #20316
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i'm a foam guy, but i like a shorter front link here. 2mm ought to do the trick. the car will react quicker, AND have more steering, primarily off power when the suspension is compressed the most.
thanks Mr. Ball.....i will give it a try next time out....
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Old 06-21-2007, 07:19 AM   #20317
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i have been going round my local track and seem to be getting no where, i have tried jon kerr's setup, a different wing. but the next time i will try tightening the diff at the back to see if that does anything.

any ideas?
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Old 06-21-2007, 07:24 AM   #20318
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Originally Posted by [email protected] View Post
i have been going round my local track and seem to be getting no where, i have tried jon kerr's setup, a different wing. but the next time i will try tightening the diff at the back to see if that does anything.

any ideas?
On which car? EC or Mi3?
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Old 06-21-2007, 07:38 AM   #20319
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Mi3 sorry
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Old 06-21-2007, 07:39 AM   #20320
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i have been going round my local track and seem to be getting no where, i have tried jon kerr's setup, a different wing. but the next time i will try tightening the diff at the back to see if that does anything.

any ideas?
What's the problem? What's the car doing and what kind of surface/tires are you running?
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Old 06-21-2007, 07:43 AM   #20321
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i am running rubber on tarmac. and there is no rear traction any where
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Old 06-21-2007, 07:50 AM   #20322
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And your setup is identical down to the last shim as my Reedy Race setup? That's odd because the only thing I thought my car could have used at Reedy was to have the rear end a touch more free. What changes have you tried?
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Old 06-21-2007, 07:52 AM   #20323
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the only thing that isn't the same is the 2mm on the vertical turnbuckle, i have 1mm on that which i think would not make much difference to the rear traction.
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Old 06-21-2007, 08:02 AM   #20324
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The front vertical camber link you have at 1mm instead of 2mm? That could have a little to do just because it's going to give you more steering and more grip with the front end. And if conditions make for a loose race car, that will accentuate it. Is the rear end loose going into the corner, coming out, or everywhere? Does it have kind of a "pushy loose" feeling like the front end slides to a point and then the rear whips around?
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Old 06-21-2007, 08:03 AM   #20325
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the only thing that isn't the same is the 2mm on the vertical turnbuckle, i have 1mm on that which i think would not make much difference to the rear traction.
Detach your rear shocks swaybars, and check for binding on the suspension. Lift the rear arms up and let them drop...they should drop down by themselves instantly, without any binding or need for your assistance...if they dont drop down or require that you push them slightly for them to drop all the way, then they are binding. Check your quick clips and see that they are not too tight, or check your hinge pins and the rear a-arm holes and check if they are tight or smooth when you put them in...

Check your rear shocks- open them up, and check if you have air/bubbles in them. If so, you need to rebuild them...if not check for smoothness. They should be really smooth and shouldnt feel binding or roughness on the shock rod.
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