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Old 08-27-2007, 03:20 PM   #7591
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hi im new to the bd (and racing) and am planning to run 27turns on asphalt. and i dont know what gear ratio i should start with.. i currently have 6.55 but havent tried it yet on the tracks. that ratio do you think would be best on the track? my motor is a 27 turn epic. thanks
Hi,

For an Epic base 27T motor your starting gear ratio is a good starting point without causing damage. Without seeing the track it makes it hard to give you a closer ratio but if you ask one of the top runners at your local club they should be able to get you closer to the sweet spot.
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Old 08-28-2007, 04:38 PM   #7592
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Hi John,

Any chance of getting a photo of this? (front hub assembly)

Cheers,
JJC
Working on it
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Old 08-28-2007, 04:43 PM   #7593
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Hi John,

Do you have any setups for rubber tyres on carpet using the modified steering? Perhaps a set up Chris used at Carpet wars?

Would be much appreciated, oh and thanks for coming on here and giving us some good advice as Chris's official spokesperson
Ah yes, dreaded carpet racing. We havent run the car yet with 5 cells on carpet yet, first meeting is in October. The car we are running is quite a bit different from last year so I would expect the carpet setup may differ from last years.

We were running the cgm steering conversion last year, well I was anyway, can't remember if chris was or not.
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Old 08-28-2007, 04:52 PM   #7594
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I'm wondering if using the rear front arm mounts with a front sweep will actually give the car more steering lock when using the cgm steering conversion.
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Old 08-28-2007, 10:04 PM   #7595
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first of what is the drive ratio for the car? and does anyone know where i can find a front belt??

shoot me an email when you get a chance [email protected]

thanks
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Old 08-28-2007, 11:34 PM   #7596
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Hi All I have abit of a problem that I hope someone can help me with on my Chris Grainger BD

i have noticed that the front wheels come off the ground at different heights.

i have checked the shocks and they are all the same length i did have a bent shock screw in the shock tower but i replaced all of them thinking it would solve the problem.

i have taken the shocks off and measured the droop and they are all same.
The only problem i did find is that when i measured the distance between the bottom shock mounting hole to the top mounting hole from left side to right side the distance is different and its by a good 3mm difference.
Is this a common thing with the chris grainer front arms ?? What can i do about this problem ??

Thanks ALL
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Old 08-29-2007, 12:10 AM   #7597
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E-clip, have you checked that the shock tower is not tilting towards one side.
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Old 08-29-2007, 04:10 AM   #7598
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Quote:
Originally Posted by E-clip View Post
Hi All I have abit of a problem that I hope someone can help me with on my Chris Grainger BD

i have noticed that the front wheels come off the ground at different heights.

i have checked the shocks and they are all the same length i did have a bent shock screw in the shock tower but i replaced all of them thinking it would solve the problem.

i have taken the shocks off and measured the droop and they are all same.
The only problem i did find is that when i measured the distance between the bottom shock mounting hole to the top mounting hole from left side to right side the distance is different and its by a good 3mm difference.
Is this a common thing with the chris grainer front arms ?? What can i do about this problem ??

Thanks ALL
Doesn't that just mean the car isn't balanced left to right. If your electronics side is lifting up first, then your battery side is heavier. And if you dont have a battery in the car when testing this, then thats why.
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Old 08-29-2007, 10:03 AM   #7599
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Quote:
Originally Posted by E-clip View Post
Hi All I have abit of a problem that I hope someone can help me with on my Chris Grainger BD

i have noticed that the front wheels come off the ground at different heights.

i have checked the shocks and they are all the same length i did have a bent shock screw in the shock tower but i replaced all of them thinking it would solve the problem.

i have taken the shocks off and measured the droop and they are all same.
The only problem i did find is that when i measured the distance between the bottom shock mounting hole to the top mounting hole from left side to right side the distance is different and its by a good 3mm difference.
Is this a common thing with the chris grainer front arms ?? What can i do about this problem ??

Thanks ALL


im guessing you car is tweaked... as suggested by coons88, one side is heavier than the other... or, there's a problem with either your top deck, or shock towers...
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Old 08-29-2007, 10:22 AM   #7600
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guys, am kinda confused and i need some help... when it says to decrease your kickup, where do you put the shimms??? and also when it says to increase your anti-squat, where do you put the shimms??? on what suspension mounts will you install those shimms on... thanks in advance...

highwayman: will we be seeing you this coming weekend at JP raceway???
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Old 08-29-2007, 03:23 PM   #7601
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Originally Posted by coons88 View Post
Doesn't that just mean the car isn't balanced left to right. If your electronics side is lifting up first, then your battery side is heavier. And if you dont have a battery in the car when testing this, then thats why.
I wish it was that simple but its the battery side lifting first, I will have to check the top and bottom plates and the shock towers.

Thanks for everyones help
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Old 08-29-2007, 06:12 PM   #7602
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I wish it was that simple but its the battery side lifting first, I will have to check the top and bottom plates and the shock towers.

Thanks for everyones help

I could just be the droop screw that are off. check that too!
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Old 08-29-2007, 09:20 PM   #7603
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droop screws are out
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Old 08-29-2007, 10:04 PM   #7604
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Originally Posted by tantalus007 View Post
guys, am kinda confused and i need some help... when it says to decrease your kickup, where do you put the shimms??? and also when it says to increase your anti-squat, where do you put the shimms??? on what suspension mounts will you install those shimms on... thanks in advance...

highwayman: will we be seeing you this coming weekend at JP raceway???


the stock set-up of the BD is flat, no kick-up, no anti-squat, etc...

kick-up and anti-dive refers to the front arms only... so if you run with a kick-up, the shims are under the front (near the bumper) arm holder, you can either add shims to the rear arm holder or reduce the shims under the front arm holder to decrease kick-up.


im trying to get my TC5 ready for this weekend, equiped with a GTB and 3.5, hehe, not sure if i'll finish, if i do, i'll be there...
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Old 08-29-2007, 10:08 PM   #7605
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Originally Posted by E-clip View Post
I wish it was that simple but its the battery side lifting first, I will have to check the top and bottom plates and the shock towers.

Thanks for everyones help

did u check for binding? bent shock shaft, hinge pin?
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