PSM F&R Lower Control Arms (To be released soon it seems)

[Otto347]

Im not a fan of PBM but I will admit I bought some of their subframe risers. Then again I think its real hard to screw something like that up.

I have a similar design im working on but cash flow is killing me right now

[Def]

I have nothing against the company, and I think it's cool they're bringing out so many products, but Jesus H Christ on a popsickle stick! Please put some damn effort into making things not suck in some big way. People on ZILVIA for crying out loud started bashing them for rod ends in bending the first time they posted up a prototype pic, and they STILL went ahead and built it with a "maybe we'll change it later."

Maybe I should tell them I'll do engineering consultation for them for a nominal fee.

[CodyAce]

You're killing me man! I used to live in Newburg (between Bethlehem and Nazareth) and I'd go buy Weyerbacher's right down at the brewery in Easton. I took the Yuengling tour in Pottsville twice but that's not so painful since I can buy "Black & Tan" in Georgia now, but the memory of Weyerbacher's just plain hurts.

Hehe I remember talking about how 'small world' it was that you were literally in my neck of the woods at one point hehe. Oh man, we goto Weyerbacher WAY too often...and what makes it worse, is that I've pretty much had every beer out there (well you know what I mean) yet I still come back to the locally made WB...

Ya know, I may open a bottle of Riserva here shortly now that we talk about it! hehe

and they STILL went ahead and built it with a "maybe we'll change it later."

Maybe I should tell them I'll do engineering consultation for them for a nominal fee.

To think that they'd probably stand to gain more sales with some directon and insight...it may not be a bad idea to offer!


PS: Sweetwater 420 is very good....it's a 'west coast' ipa for sure...which is odd being out of GA. If you ever want weyerbacher, I could um....well send some your way I wonder what you can get in texas that I can't get here....

[Def]

There aren't too many "good" local microbrews that are too small that they don't distribute around here. Saint Arnolds in Houston is pretty good - fairly tasty.

As for PSM/PBM - I seriously doubt they'd even listen to someone giving them lots of good advice when they won't even listen to free good advice on a forum. Some people are just ate up with stupid...

[AceInHole]

You'd think a COM bearing on the outside would be cheaper... surprising they put heims where it makes the least amount of sense. Having threads on the outer end of the arm just sucks. The ones on the chinaspeed arms get loose and pound themselves to a slop fit.

[Def]

You'd think a COM bearing on the outside would be cheaper... surprising they put heims where it makes the least amount of sense. Having threads on the outer end of the arm just sucks. The ones on the chinaspeed arms get loose and pound themselves to a slop fit.

I've had problems keeping my chinaspeed arms tight on the inboard rod end connection. I can't imagine how hard it'd be on be where the stresses are much higher.

[SoSideways]

Argh... I'm telling you guys, if my arms start doing that, I'm just gonna have a buddy of mine weld me up a pair of arms.

DOM tubing + a nut welded on for the inboard rod end to thread into, then a bearing cup made for QA1 YBP12T bearings welded on the outboard edge with less than the stock angle on it for lowered cars.

Done and done.

[Def]

Yea, I thought about that. Lots more fab work than you think getting all that crap to work and be at the right place though.

[AceInHole]

The fronts seem simple enough. I wonder if a machined aluminum arm would be worth doing for weight and strength. I don't see the need for adjustability on the arm, so I'd just do pressed bearings on both ends to simplify it.

It'd definitely be easier and more cost effective to just make a jig from my current arms and weld something together, though.

[cazman]

Here are some old pictures of the arms I make. Only cheap if you DIY them, lol
Id rather sell just the machined items, and let people buy their own fasteners and bearings.

They use a greased COM bearing for the inner (think along the lines of EVO3-9 rear lower bearings)
No additional pics atm

[Def]

The fronts seem simple enough. I wonder if a machined aluminum arm would be worth doing for weight and strength. I don't see the need for adjustability on the arm, so I'd just do pressed bearings on both ends to simplify it.

It'd definitely be easier and more cost effective to just make a jig from my current arms and weld something together, though.

There probably is a few lbs of weight to be saved with aluminum, nothing crazy(unless a few lbs is crazy to you).

[cazman]

Have you ever weighed each of your unsprung components def?
Since seeing the brake kit im eager to see what the most you can drop.

[Def]

Have you ever weighed each of your unsprung components def?
Since seeing the brake kit im eager to see what the most you can drop.

Have no weighed the Chinaspeed arms I'm currently running. Have some stock arms I could weigh.

I actually go by the weights reported in CATIA for the stuff I design - it's very accurate once you specify the metal/alloy, and saves me the trouble of weighing the stuff.

[SoSideways]

Yea, I thought about that. Lots more fab work than you think getting all that crap to work and be at the right place though.

Well that's just it.

I can use my current modified GS arm as a template, as far as length and angle of the outter bearing should be at goes.

Also, if I made my own lower arm, I'd be able to move the tension rod inboard more by moving the mounting point.

The only downside to that is, I can't weld since I don't have a welder nor the skill to do it, and I would have to get the bearing cups made up by a machine shop, which will end up costing more in the end hahahaha

But it would be done right, with no REIB!

[Equinox]

Cazman could post you some of the bearing cups he's made up.