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Old 12-06-2003, 01:54 PM   #31
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Thanks for the offer on the belts! I just ordered 3 of em....

The LSdiff works like this: as the rear tires start spinning, say coming off a corner, the clutches in the rear diff tighten up and the diff becomes a locked rear axle. This gives the rear end more traction. I had one in the MTx2 but don't use it in the 3.
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Old 12-06-2003, 03:27 PM   #32
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no problem.
thanks a lot also.
i'll ship it as soon as possible.
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Old 12-06-2003, 04:19 PM   #33
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more 16/19 conversion belts available!

Ebay Item number: 3162890563

$6.95 each and $3.85 flat shipping to US. Order up to 10 and you still pay $3.85 shipping!

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Old 12-06-2003, 04:20 PM   #34
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Old 12-07-2003, 10:38 AM   #35
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EuroKRN: oic, thx.
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Old 12-07-2003, 06:29 PM   #36
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So with the 16/19 conversion I need my frotns tires trued to say 60mm and my rears at 64mm? What do I do for ride height? Will I need to change the droop?
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Old 12-07-2003, 11:30 PM   #37
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Which Pullies Are You Changing?

Which pullies are you actually changing? Is it the side pullies at 19/24 to 16/19? And do you need a different belt-front or middle?

One more, for the experienced MTX3 racers, what diff oil comes with the kit? What wheight?

Thanks
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Old 12-07-2003, 11:35 PM   #38
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Default Re: Which Pullies Are You Changing?

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Originally posted by Ed Delgado
Which pullies are you actually changing? Is it the side pullies at 19/24 to 16/19? And do you need a different belt-front or middle?
Indeed a new belt is needed.

Yes, you replace the 19T to 16T and 24T to 19T.
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Old 12-07-2003, 11:45 PM   #39
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Quote:
Originally posted by theRED5
Thanks for the offer on the belts! I just ordered 3 of em....

The LSdiff works like this: as the rear tires start spinning, say coming off a corner, the clutches in the rear diff tighten up and the diff becomes a locked rear axle. This gives the rear end more traction. I had one in the MTx2 but don't use it in the 3.
A locked up rear axle does not always give you more rear traction. Have you ever driven a BIG block camaro in the rain with a posi unit rear?
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Old 12-08-2003, 12:35 AM   #40
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Smile 16/19

you need this kind of belt to do the 16/19 conversion...

Ebay Item number: 3162890563
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Old 12-08-2003, 07:12 AM   #41
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Quote:
Originally posted by theRED5
Thanks for the offer on the belts! I just ordered 3 of em....

The LSdiff works like this: as the rear tires start spinning, say coming off a corner, the clutches in the rear diff tighten up and the diff becomes a locked rear axle. This gives the rear end more traction. I had one in the MTx2 but don't use it in the 3.
The tightening of the diff helps prevent the inside wheel spinning in corners. But the tighter the diff gets the more chance of on power oversteer. But this is generally not a problem in fast corners where the clutches have most effect.
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Old 12-08-2003, 12:15 PM   #42
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Thanks for the reply.

That brings me to my next question, why do you guys recommend going to a 4mm split between the front and rear wheels?

24/19 ratio is 1.263:1

19/16 ration is 1.187:1

It seems like a rather radical change in tire size. It's not like we're talking a bout a larger 1/8 foam tire.

Thanks
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Old 12-08-2003, 05:15 PM   #43
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Default 16/19 Conversion question

Quote:
Originally posted by kreidel
So with the 16/19 conversion I need my frotns tires trued to say 60mm and my rears at 64mm? What do I do for ride height? Will I need to change the droop?
Also....at what rate will the rear wear to the front....even enough so the 4mm split will stay?
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Old 12-08-2003, 07:47 PM   #44
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Quote:
Originally posted by Ed Delgado
That brings me to my next question, why do you guys recommend going to a 4mm split between the front and rear wheels?
That's the same question that has been answered actually...

A 4 mm split when using the 16/19 conversion is needed so that the car will achieve the same front and rear overdrive (overdrive = 1:1). You need to make the front tire rollout the same as the rear tire rollout which is calculated as follows;

Front tire rollout = pi x front tire diameter / front final drive ratio

Rear tire rollout = pi x rear tire diameter / rear final drive ratio

A smaller final drive ratio for the front when comapred to the rear final drive ratio, the smaller the front tire diameter and vice versa.
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Old 12-08-2003, 07:51 PM   #45
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Default Re: 16/19 Conversion question

Quote:
Originally posted by kreidel
Also....at what rate will the rear wear to the front....even enough so the 4mm split will stay?
I guess this depends on the driving style, track layout, track surface and tire shore choosen.

Many have mentioned that at the end of a long main, the split still remains about the same as previously intended. My own experience has told me that I end up with 3 mm split after a long main when I started out with 4.5 mm. So the overdrive you get at the end of the main is not as bad as if you started out with same front and rear tire diameters and with stock internal pulleys which makes the car handling not constant.
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