Learned'd VIII: Less Bewbs, Same Nonsense

[frapjap]

Friday funnies.






When you see it....


Who's your money on?

[TurboSauce]

'vette

[Razi]

Standard steering arms. The others are better for drifting, and I want more control and precision under grip.

Float, the passive steering comes from the links during suspension travel. The RLCA doesn't move for steering. It should only be moving along its coplanar axis of rotation through the inboard bushings. Their compliance does allow a shift under cornering load that throws the camber and steering curves off, but that's a side effect of the rubber compliance.

What I might do is look into designing a press in housing for a set of bearings like SPL uses if I can't find an OTS solution.

Oh I see. I was looking to buy some "drift" knuckles, so I can have quicker steering, but I'm afraid it'll be too twitchy on the highway.

If you design something for the RLCA, I'd buy some!

[Hijacker]

My money's on the old lady causing the traffic jam.

The dock worker reminds me working for UPS

[float_6969]

Float, the passive steering comes from the links during suspension travel. The RLCA doesn't move for steering. It should only be moving along its coplanar axis of rotation through the inboard bushings. Their compliance does allow a shift under cornering load that throws the camber and steering curves off, but that's a side effect of the rubber compliance.

What I might do is look into designing a press in housing for a set of bearings like SPL uses if I can't find an OTS solution.

I think we're saying the same thing?

I'm referencing this;
https://docs.google.com/file/d/0B7989T0 ... sp=sharing

[stm37s]

Just another weekend here in Iraq doing the dam thang, lol

[Hijacker]

Float, the passive steering comes from the links during suspension travel. The RLCA doesn't move for steering. It should only be moving along its coplanar axis of rotation through the inboard bushings. Their compliance does allow a shift under cornering load that throws the camber and steering curves off, but that's a side effect of the rubber compliance.

What I might do is look into designing a press in housing for a set of bearings like SPL uses if I can't find an OTS solution.

I think we're saying the same thing?

I'm referencing this;
https://docs.google.com/file/d/0B7989T0 ... sp=sharing

That's an awesome design doc.

From the looks of it, the bushing compliance is done to counteract the natural tendency for the wheel to rotate around the steering axis under deceleration. Basically, there's a lever arm between either the contact patch or the center of the driveaxle to the steering axis. The force of the change in momentum on the car pushes on that lever arm and forces the wheel to rotate around the steering axis. To counter that, the RLCA looks to be designed to slide forward and aft a little to counter act that torquing action, bringing the wheel's toe back to neutral.

That makes sense to me when the system uses factory rubber, as they all have compliance built in. The only way the wheel can rotate around the steering axis would be for the toe link bushings to comply from the torque force. Sphericals eliminate the moment of the steering axis, so the LCA will create a toe in situation under decel. Sounds like keeping the bushings consistent through out the system is necessary.

[float_6969]

Yea, I was pretty excited when I saw it on another forum!

You're right about the compliance, although with the MR bushings, there isn't much compliance there. There is VERY little rubber there, but it obviously isn't solid either. The LCA does have a lot of rubber there, so there is a lot of compliance there. It's also interesting to note that this design makes the LCA bushing directional. I was glad to have seen this article before I put the MR bushings in.

That mix-matching of bushings was my concern with your setup. If you have a compliance bushing on the LCA and sphericals everywhere else, I think you're going to end up toe change on decel. A Poly bushing SHOULD almost eliminate that though. I have seen some ppl modifying the ES bushings and LCA's so that they can be re-lubed with a normal grease gun. They say that if you do this, the stiction isn't too bad and the arm moves freely. I guess it just takes a little time with a dremel and some grease zerts to do it.... Something to consider anyway.

[Hijacker]

I'm considering trying to find a way to make press in sphericals. Shouldn't be hard to emulate SPL's setup with two press fit housings for either a QA-1 or an FK bearing. Poly bushings have a collar that fills the gap between the LCA and the mount bracket, so they would eliminate the swing axis slide, but the stiction issues would arise.

Do you have any more of that design doc? I'd love to see what other engineering things Nissan put out about the shared platform.

I'm going to work on designing some press ins, and since I still have a long time to wait before the suspension is going together, I'll have time to get these worked up and milled out.

[Hijacker]

And here's why I love working with SPL. Pat had these shipped out and in my hands in no time and I was able to reassemble my bearing assembly to go back in the knuckle. Still need to press the assembly into the knuckle, but I'm going to wait while I take some measurements and whatnot to design up something to work for an S14 RLCA bearing assembly. I'm trying to find a good solution for the misalignment spacers as it seems SPL uses a custom machined deal. Everything I've found online is in US standard and the few metrics won't work. I think I'll be making another call to SPL tomorrow and see what they did specifically to make the spacers.

[Dattebayo]

I found this today, thought it was a good read. Did anyone else hear of this?

blog.caranddriver.com/lemons-goodbad-id ... mr2corolla

[float_6969]

I'm considering trying to find a way to make press in sphericals. Shouldn't be hard to emulate SPL's setup with two press fit housings for either a QA-1 or an FK bearing. Poly bushings have a collar that fills the gap between the LCA and the mount bracket, so they would eliminate the swing axis slide, but the stiction issues would arise.

Do you have any more of that design doc? I'd love to see what other engineering things Nissan put out about the shared platform.

I'm going to work on designing some press ins, and since I still have a long time to wait before the suspension is going together, I'll have time to get these worked up and milled out.

Does that arm move in any other direction? Does it need to be able to be mis-aligned? I would think a traditional bearing would work? What about modifying the arm to take a normal threaded endlink?

No more of the document. I contacted the guy that uploaded it, and that was all of it he could find.

[float_6969]

I found this today, thought it was a good read. Did anyone else hear of this?

blog.caranddriver.com/lemons-goodbad-id ... mr2corolla

I hadn't heard of it, but I think it's pretty cool!

[frapjap]

Morning fellas.

Hope ya'll had a good weekend.
We did, right up until we learned that the house we're moving into has fleas. Moved some boxes in early and I looked down to see more than a dozen of the f*** on my legs. Murphy's Law says that the dog had to be in the house, too.
Spent the last hours of my weekend bombing the house and cleaning the dog. Goddamned dog still has fleas this morning
She has her frontline, but I'm not sure how the stuff works and I hope another application will get rid of the remaining fleas.

I'll also bomb the house 1-2 more times in a 6 day period. How's that sound?

Other suggestions openly accepted.

[Hijacker]

Does that arm move in any other direction? Does it need to be able to be mis-aligned? I would think a traditional bearing would work? What about modifying the arm to take a normal threaded endlink?

No more of the document. I contacted the guy that uploaded it, and that was all of it he could find.

It only rotates on the swing axis, so it can't rotate on any other axis. I guess tossing a standard bearing in would be fine. I've been focusing on spherical just because I have one in hand.

I considered modifying the arm for a threaded endlink, but if I go that far, I might as well just fab up a custom arm. I'm avoiding threaded links a little to ensure I maintain factory geometry. It's easier to plan my setup if I can eliminate variables.

[sx moneypit]

[WDRacing]

Go Bruins!

[MinisterofDOOM]

Have I mentioned that I love my V8 lately?


230 miles of mountainous terrain. Never exceeded 2800rpm except when passing. I love the steeper hills because all the econoboxes go whizzing past me for fear of losing momentum and having to dump 2 gears and rev to high heaven just to keep moving. LS8 stays in overdrive and devours the mountains like candy. Completely effortless.

Seventeen bajillion gears are great when the road is straight and flat and there's no traffic to flow with. Usable torque is great all the time.

And yeah, my check engine light is on. I have an EGR problem that I don't care about. I love the smell of unburned hydrocarbons in the morning!

Oh, also, this is proof that EPA estimates are full of s***:
http://www.fueleconomy.gov/feg/Find.do? ... s&id=20899

[Hijacker]

[float_6969]

Morning fellas.

Hope ya'll had a good weekend.
We did, right up until we learned that the house we're moving into has fleas. Moved some boxes in early and I looked down to see more than a dozen of the f***ers on my legs. Murphy's Law says that the dog had to be in the house, too.
Spent the last hours of my weekend bombing the house and cleaning the dog. Goddamned dog still has fleas this morning
She has her frontline, but I'm not sure how the stuff works and I hope another application will get rid of the remaining fleas.

I'll also b0mb the house 1-2 more times in a 6 day period. How's that sound?

Other suggestions openly accepted.

That sucks! Fleas are a b****. I need to ask my wife (she's a vet tech) but here's what I remember;

Frontline only works on adult fleas. It does nothing for the larva/eggs/pupa. We use Sentinel. It's a pill that the dogs take that prevents the eggs from ever hatching. IIRC you can use Frontline and Sentinel at the same time.

Flea baths don't work very well. They're only going to deal with the adult's, and your frontline is doing that for you already.

Don't bother with a flea collar either. They're a joke. What they ARE good for is to place in the bag/canister of the vacuum cleaner. When you vacuum the house (make sure you vac the couch!) it sucks up all the stages of the flea's and the flea collar is good at killing all of those stages in the confined area of the bag/canister.

Flea bombs work. They kill all stages of the flea. YOU HAVE TO USE ONE IN EACH ROOM! My wife used to talk about people complaining that they had flea bombed the house a dozen times, only to find out that they bought ONE bomb, and put it in the middle of the house. Also remember that the bombs put poison all over the house. So make sure you clean the countertops/tables really well.

I hope that helps!

[float_6969]

Does that arm move in any other direction? Does it need to be able to be mis-aligned? I would think a traditional bearing would work? What about modifying the arm to take a normal threaded endlink?

No more of the document. I contacted the guy that uploaded it, and that was all of it he could find.

It only rotates on the swing axis, so it can't rotate on any other axis. I guess tossing a standard bearing in would be fine. I've been focusing on spherical just because I have one in hand.

I considered modifying the arm for a threaded endlink, but if I go that far, I might as well just fab up a custom arm. I'm avoiding threaded links a little to ensure I maintain factory geometry. It's easier to plan my setup if I can eliminate variables.

I don't know that anyone has done it that way, but machining up a sleeve to slide inside the arm that will house a couple of off-the-shelf sealed bearings should be easy.

[Hijacker]

I was doing a lot of googling on the subject and it seems SPL used to offer press ins (still need to call and confirm), but they were expensive as sh1t. I can mock something up in sketch up and have a buddy who's a professional CAD programmer clean it up and make it ready for CNC. Then all I need is to find a shop that can mill it and see what the minimum order is. I'd need 8 sleeve halves, so if it becomes an issue of needing a min order like 40, I'd probably just sell the rest off to make my money back. QA1 and FK both have identical spacial specs for their bearings. The only piece that's turning into a PITA to find are the misalignment spacers. All the off the shelf ones reduce the .5" ID of the bearing to about a 10mm and they're not long enough to fill in the 40mm space of the bracket. I have a feeling SPL has theirs machined special, so I need to ask them where they get theirs.

[sx moneypit]

Mornin' folks!

[Hijacker]

Morning Ben!

[frapjap]

Morning fellas.

Hope ya'll had a good weekend.
We did, right up until we learned that the house we're moving into has fleas. Moved some boxes in early and I looked down to see more than a dozen of the f***ers on my legs. Murphy's Law says that the dog had to be in the house, too.
Spent the last hours of my weekend bombing the house and cleaning the dog. Goddamned dog still has fleas this morning
She has her frontline, but I'm not sure how the stuff works and I hope another application will get rid of the remaining fleas.

I'll also b0mb the house 1-2 more times in a 6 day period. How's that sound?

Other suggestions openly accepted.

That sucks! Fleas are a b****. I need to ask my wife (she's a vet tech) but here's what I remember;

Frontline only works on adult fleas. It does nothing for the larva/eggs/pupa. We use Sentinel. It's a pill that the dogs take that prevents the eggs from ever hatching. IIRC you can use Frontline and Sentinel at the same time.

Flea baths don't work very well. They're only going to deal with the adult's, and your frontline is doing that for you already.

Don't bother with a flea collar either. They're a joke. What they ARE good for is to place in the bag/canister of the vacuum cleaner. When you vacuum the house (make sure you vac the couch!) it sucks up all the stages of the flea's and the flea collar is good at killing all of those stages in the confined area of the bag/canister.

Flea bombs work. They kill all stages of the flea. YOU HAVE TO USE ONE IN EACH ROOM! My wife used to talk about people complaining that they had flea bombed the house a dozen times, only to find out that they bought ONE b0mb, and put it in the middle of the house. Also remember that the bombs put poison all over the house. So make sure you clean the countertops/tables really well.

I hope that helps!

WOW Thanks for all of that info! It confirmed from a first hand professional what my research was turning up.
We did bomb every room (seemed logical) and went back yesterday. Still fleas. Those bastards SUCK. My land lord is going to have a professional exterminator service come to wipe them out and they said to vacuum every day after. I'll take the advice on the flea collar in the vacuum cleaner. Even after the exterminator has come, I will probably bomb the house one more time before we move in with beds, couches, etc for good measure. And maybe Borax the floor.

The lady found more fleas in the dogs ear last night so she is going to the vet this morning to get Sentinel since its a prescription that only the vet can write. No more effing around.

I tell ya man, fleas are stressful s***. The only positive of this whole situation is that the house doesn't have our belongings in it yet. However, I'm sure they're at Lindseys house now... She'll have to bomb her home, too. Especially after the vet visit.

[danshaz82]

Go Bruins!

[Hijacker]

f*** me sideways. I did not sleep as well as I should have. 3 hours of sleep? I can handle my calc 2 test today no problem!

[float_6969]

f*** that. I'd call in and say you have gonorrhea and can't come because you're pissing blood.

[float_6969]

WOW Thanks for all of that info! It confirmed from a first hand professional what my research was turning up.
We did b0mb every room (seemed logical) and went back yesterday. Still fleas. Those bastards SUCK. My land lord is going to have a professional exterminator service come to wipe them out and they said to vacuum every day after. I'll take the advice on the flea collar in the vacuum cleaner. Even after the exterminator has come, I will probably b0mb the house one more time before we move in with beds, couches, etc for good measure. And maybe Borax the floor.

The lady found more fleas in the dogs ear last night so she is going to the vet this morning to get Sentinel since its a prescription that only the vet can write. No more effing around.

I tell ya man, fleas are stressful s***. The only positive of this whole situation is that the house doesn't have our belongings in it yet. However, I'm sure they're at Lindseys house now... She'll have to b0mb her home, too. Especially after the vet visit.

Glad to help. I know it's a b****, but just keep at it man. The Frontline + Sentinel is a heck of a combo and will definitely rid the dog of fleas in a few days.

[Dittoz7]

Ladies please....contain your orgasams.