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Old 06-06-2007, 12:11 PM   #2716
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Whats the difference between running tight and looser belts on the front and rear, one way or ball diff.

Thanks guys!
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Old 06-06-2007, 01:20 PM   #2717
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Originally Posted by Chris Adams View Post
Co 27 should be geared anywhere from a 5.9 ish... to a 6.5 depending on track size.
i use a co27 and gear it with a 25 pinion and 87 spur 48 pitch sorta medium sized track
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Old 06-06-2007, 01:23 PM   #2718
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Whats the difference between running tight and looser belts on the front and rear, one way or ball diff.

Thanks guys!
If your belts are too loose they will come off, I had that problem in the front with the mulitdiff, to counteract this you just move the bearing holders notch tward the rear of the chassis in the front and to the front in the back. Running your belts too tight can also cause the car to tweak.
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Old 06-06-2007, 01:48 PM   #2719
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I was going through the first few pages in this thread and came across something that teamgp was explaining before and im just a little confused about.

Are the diff rings one way only, meaning are they suppose to fit a certain way. If I remember he said there was a rough and a smoother side. Which way goes where? Im assuming that the rouch side goes on the diff balls. Also do both sides need to be rough when you rebuild the diff?

After I rebuilt my diff its smoother but has a kind of crunchy noise, does this mean I have my rings backwards?

Thanks!

Last edited by TMcKinney711; 06-06-2007 at 02:02 PM.
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Old 06-06-2007, 05:57 PM   #2720
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Originally Posted by Big B View Post
If your belts are too loose they will come off, I had that problem in the front with the mulitdiff, to counteract this you just move the bearing holders notch tward the rear of the chassis in the front and to the front in the back. Running your belts too tight can also cause the car to tweak.
The belt tension is also a tuning adjustment. On 2 belt cars like the T2, the rear end always gets driven first because it has a significantly shorter belt...this gives the car more rear traction out of a corner than it would otherwise have if the belts were of equal size or reversed. When the rear belt is shorter, the rear end pushes the front rather than the front end pulling the rear.

From a neutral setting,
-as you make the rear belt looser, the car will free up more on power
-as you make the rear belt tighter, the car will have more rear traction on power
-as you make the front belt looser, the car will steer less on power
-as you make the front belt tighter, the car will steer more on power

Obviously, you must work within a normal tension range.
These are small adjustments, but they can add up to a lot...they can make a super-dialed car that much better .
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Old 06-06-2007, 06:02 PM   #2721
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Originally Posted by TMcKinney711 View Post
I was going through the first few pages in this thread and came across something that teamgp was explaining before and im just a little confused about.

Are the diff rings one way only, meaning are they suppose to fit a certain way. If I remember he said there was a rough and a smoother side. Which way goes where? Im assuming that the rouch side goes on the diff balls. Also do both sides need to be rough when you rebuild the diff?

After I rebuilt my diff its smoother but has a kind of crunchy noise, does this mean I have my rings backwards?

Thanks!
The rough side goes against the aluminum outdrive. This keeps the ring from slipping against the outdrive when the diff operates.
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Old 06-06-2007, 06:22 PM   #2722
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Wow thanks alot man!
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Old 06-07-2007, 07:07 AM   #2723
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I did a frontal crash to a track barrier made from fiber glass..it did a damage to the front carbon fiber chassis at the bumper holder..my friend did a crash and damage the same spot. my quetion is, why the front bumper can't stay when hitting something..but it moved up and open the carbon fiber area....any tips to reinforce the bumper????
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Old 06-07-2007, 07:14 PM   #2724
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I did a frontal crash to a track barrier made from fiber glass..it did a damage to the front carbon fiber chassis at the bumper holder..my friend did a crash and damage the same spot. my quetion is, why the front bumper can't stay when hitting something..but it moved up and open the carbon fiber area....any tips to reinforce the bumper????
A pdub bumper and maybe the optional Xray graphite upper bumper brace
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Old 06-07-2007, 10:43 PM   #2725
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When everyone runs a spool, do they run the multi-diff or another aftermarket diff (TiR?)? If I was running a Birdman Black Can 27T what would you gear that at? I ran 116/34 for 19t and the car was pretty fast. I'm getting another car to run stock but would like some direction on what I should gear it at prior to showing up at the track.
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Old 06-08-2007, 04:44 AM   #2726
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When everyone runs a spool, do they run the multi-diff or another aftermarket diff (TiR?)? If I was running a Birdman Black Can 27T what would you gear that at? I ran 116/34 for 19t and the car was pretty fast. I'm getting another car to run stock but would like some direction on what I should gear it at prior to showing up at the track.
You should pick up the lightweight Xray spool (Part number: # 305181). It has a little bit of play to eliminate wheel chatter. As for stock gear you'll probably end up running the same gear as your 19T motor. Maybe 1 tooth less.


Last edited by Apex; 06-08-2007 at 05:01 AM.
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Old 06-08-2007, 05:04 AM   #2727
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Default Light Weight Spool

Where do you get the best light weight spool for the T2 from?
I want to get one for my T2 '06.
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Old 06-08-2007, 01:05 PM   #2728
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Where do you get the best light weight spool for the T2 from?
I want to get one for my T2 '06.
France have JP , but not have onsale !
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Old 06-08-2007, 07:10 PM   #2729
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Light Weight Spool for T2

Do you have a link or website i could go to so i can check them out please?

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France have JP , but not have onsale !
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Old 06-08-2007, 10:57 PM   #2730
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Originally Posted by daveb View Post
I'm getting another car to run stock but would like some direction on what I should gear it at prior to showing up at the track.
Hey Dave,

Did it show up today? I hope so.

Steve
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