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Author Topic: Dodge Dakota C/BMMP  (Read 38567 times)
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manta22
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« Reply #90 on: March 12, 2015, 10:51:31 AM »

Nice work-- but with the top a-arms that short, you're going to have lots of camber gain-- is that what you wanted?

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
Brickster
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« Reply #91 on: March 12, 2015, 07:42:06 PM »

Nice work-- but with the top a-arms that short, you're going to have lots of camber gain-- is that what you wanted?

Regards, Neil  Tucson, AZ

I don't think I want much camber gain. I set up the car at a 2" ride height although I plan to set the air dam closer than that. With the limited suspension travel how much (%) camber gain is too much?

I plan to measure the change. What should I look for?
« Last Edit: March 12, 2015, 07:44:16 PM by Brickster » Logged

1995 dodge Dakota, C/BMMP
tauruck
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« Reply #92 on: March 12, 2015, 08:06:47 PM »

If the travel is going to be short and the front end stiff will it matter?.
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Brickster
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« Reply #93 on: March 12, 2015, 08:23:38 PM »

Just measured it and it will be <2% through the total range of travel. What do you think?
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1995 dodge Dakota, C/BMMP
manta22
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« Reply #94 on: March 12, 2015, 09:42:19 PM »

Just measured it and it will be <2% through the total range of travel. What do you think?

How much is that in degrees?

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
Brickster
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« Reply #95 on: March 12, 2015, 10:04:48 PM »

Apparently I don't now the difference between % and the degrees symbol that I don't know how to type in on my iPad. Yea that was degrees, I'm just not that smart.
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1995 dodge Dakota, C/BMMP
manta22
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« Reply #96 on: March 13, 2015, 10:57:22 AM »

I can't figure out how to type symbols on my Android phone either.

If you have a very high wheel rate so that aerodynamic downforce (hopefully it'd down, not up) does not deflect your front suspension much in bump travel you should be OK. If you do get much bump travel, it will be a different story. Check your bump steer, too. Again, if there won't be much suspension deflection, it won't matter much, but getting bump steer as small as possible means that you'll not have any problem from that source if things are not as they were assumed to be.

Regards, Neil  Tucson, AZ
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« Reply #97 on: March 13, 2015, 04:46:29 PM »

Thats looking pretty slick Brickster
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Brickster
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« Reply #98 on: March 13, 2015, 07:58:15 PM »

I can't figure out how to type symbols on my Android phone either.

If you have a very high wheel rate so that aerodynamic downforce (hopefully it'd down, not up) does not deflect your front suspension much in bump travel you should be OK. If you do get much bump travel, it will be a different story. Check your bump steer, too. Again, if there won't be much suspension deflection, it won't matter much, but getting bump steer as small as possible means that you'll not have any problem from that source if things are not as they were assumed to be.

Regards, Neil  Tucson, AZ

What is wheel rate?
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1995 dodge Dakota, C/BMMP
manta22
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« Reply #99 on: March 13, 2015, 09:10:01 PM »

It's like spring rate but its the lbs/inch rate measured at the wheel-- where it contacts the road. All the complicated geometry is bypassed by measuring the rate this way and wheel rate is what actually counts, anyway.

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
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« Reply #100 on: March 13, 2015, 10:33:12 PM »

Looked it up and it looks like I'll need to have my coil-overs mounted to calculate it.
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manta22
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« Reply #101 on: March 13, 2015, 11:17:14 PM »

You can measure it directly-- put 200 lbs on the nose over the axle and measure how far the chassis drops down. No math required.

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
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« Reply #102 on: March 13, 2015, 11:25:37 PM »

http://eibach.com/america/en/motorsport/products/suspension-worksheet

This is where I was reading about it.

I can't put weight on the nose yet because the frame stub is not attached to the frame yet
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1995 dodge Dakota, C/BMMP
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« Reply #103 on: March 17, 2015, 09:16:24 AM »

 As for aero on that thing, it will pick up the nose at speed. It won't push down. We have photos of our Sonoma at the mile with the air dam 4" in the air when we leave the line with 1".
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« Reply #104 on: March 17, 2015, 09:21:23 AM »

You were supposed to run the wheelie bars like I told you!!!!! grin evil
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