Ecotec 510

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icehouse
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Location: Everett Wa

Re: Ecotec 510

Postby icehouse » 04 Mar 2017 23:29

Bad ass rear control arm!! Do you at all worry about the heim joints breaking? Since they are designed to be in tension or compression and you are side loading them when cornering force is applied? Also what does one of them weigh?
"People don't like it when shit doesn't match their rule of thumb." Sam

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ecotec510
Posts: 66
Joined: 16 Dec 2009 19:12
Location: Oxford,AL

Re: Ecotec 510

Postby ecotec510 » 05 Mar 2017 06:45

Steinny wrote:Just read through this build. Amazing job man. One quick question, do you have any pictures of what you did to the rear upper shock mount? Looks like your coilover has a spherical bearing on the top hat as well and was curious. Keep up the great work!


Just a simple clevis mount with room to offset the shock outboard of the oem hole. This gives me clearance on the inner wheelwell, and packages the shock high enough that I can use all the travel.

rearcoilover (Small).jpg
rearcoilover (Small).jpg (103.56 KiB) Viewed 790 times
shockclevis (Small).jpeg
shockclevis (Small).jpeg (54.57 KiB) Viewed 790 times


icehouse wrote:Bad ass rear control arm!! Do you at all worry about the heim joints breaking? Since they are designed to be in tension or compression and you are side loading them when cornering force is applied? Also what does one of them weigh?


The rear arm heims are monsters! Alloy 4340 3/4 shank/ 5/8 bore something like 25k lbs rating. Overkill so I don't have to worry about wearing them out or breaking one. They're not really being side loaded, it's more of a moment force. The outboard is mounted horizontally, it is adjustable up and down to tweak roll center height.

reararm (Small).jpg
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ecotec510
Posts: 66
Joined: 16 Dec 2009 19:12
Location: Oxford,AL

Re: Ecotec 510

Postby ecotec510 » 04 Apr 2017 18:29

Redesigned my front uprights. Minor improvements from my previous version, mainly these are much lighter (4lbs/side) and cnc machined from one piece. Using the same 370Z hubs, howe racing ball joints and Bilstein universal motorsport 46mm struts. Managed to reduce the scrub radius even more, allowing clearance for wider wheels without rubbing. Working on extending the a-arms and steering links to make up for moving the ball joints outward.

cncupright.jpg
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ftsusp2.jpg
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two_68_510s
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Re: Ecotec 510

Postby two_68_510s » 05 Apr 2017 07:26

Wow!
Joel

2 '68 510 2 door sedans
'95 240SX
74 Jensen Healey

“We will either find a way, or make one.” – Hannibal

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510wizard
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Location: Reno, Nevada

Re: Ecotec 510

Postby 510wizard » 05 Apr 2017 08:29

Very nice!

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Doraemon
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Location: The Netherlands

Re: Ecotec 510

Postby Doraemon » 09 Apr 2017 12:10

Fantastic ! Think every everyone would like to have the knowledge and skills to do something amazing !

Oh by the way the coilover doesn't have to be in a straight line to the lower knuckle at all ?

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Mattndew76
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Re: Ecotec 510

Postby Mattndew76 » 11 Apr 2017 16:03

I wonder how well your items would hold up to some off-road use? I am considering redesigning a front spindle setup for my 1200 Coupe and was considering aluminium for the job.

Have you done an FEA on your items?
An Idea doesn't work unless you do.

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ecotec510
Posts: 66
Joined: 16 Dec 2009 19:12
Location: Oxford,AL

Re: Ecotec 510

Postby ecotec510 » 12 Apr 2017 09:40

Mattndew76 wrote:I wonder how well your items would hold up to some off-road use? I am considering redesigning a front spindle setup for my 1200 Coupe and was considering aluminium for the job.

Have you done an FEA on your items?


I did some crude FEA on them, didn't model the wheel bearings, which stiffen the knuckles up. I didn't go crazy on trying to make the lightest part possible, to do that I'd definitely need to use FEA. I think the best bet is to use 7075/7050 aluminum to engineer in some overkill. I'm not sure if off-road loads would be any worse than grippy tire lateral loads from autox/track.

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Mattndew76
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Re: Ecotec 510

Postby Mattndew76 » 12 Apr 2017 10:43

I think 7075 would be overkill with how much material mass is there. 6061 would hold up as long as the object wasn't thin wall.
An Idea doesn't work unless you do.


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