THe NAC Lots-O-BFG KO2 Thread

[billyjp2]

Re: THe NAC Lots-O-Post Thread

boxed in stock short arms FTW

ya, why the F would you 3 link a line mountain beater?

 

[foxwar71]

Re: THe NAC Lots-O-Post Thread

ya, why the F would you 3 link a line mountain beater?

my point exactly.



Hell, I bet Pat's jeep with the lift stuff he has would be perfect. Strip it down and add a simple cage. GO RACING!!!

 

[foxwar71]

Re: THe NAC Lots-O-Post Thread

I didnt wanna get into the IRO thread, but I jsut had to drop the bomb in it

 

[ROBZ95Xj]

Re: THe NAC Lots-O-Post Thread

i so hope to win a la kit at nac fest, then ill install it there do a frt dig and implode dat iro shit

 

[billyjp2]

Re: THe NAC Lots-O-Post Thread

i want to buy one and thrash on it.

 

[ROBZ95Xj]

Re: THe NAC Lots-O-Post Thread

i want to buy one and thrash on it.

how the **** you gonna run that with leafs?

 

[foxwar71]

Re: THe NAC Lots-O-Post Thread

how the **** you gonna run that with leafs?

use the arm as a traction bar

 

[ROBZ95Xj]

Re: THe NAC Lots-O-Post Thread

use the arm as a wheelie bar

WICKID!

 

[ktm racer 419]

Re: THe NAC Lots-O-Post Thread

There was a used set for sale around here about a month ago. Was tempted to buy it just so i could break it.

 

[CTeunuch]

Re: THe NAC Lots-O-Post Thread

Question for colin/ people that have put motors in shit.

Should I bring the chassis mounts closer to the motor, or the motor mounts closer to the chassis? Does it even matter?

I think the mounts closer to the chassis would be nice because there will be more room to wrassle stuff around and work on stuff when removed, and less stress on the chassis. But with the mounts closer to the motor would seem to put less leverage on the block bolts.

Am I thinking about this too much?

(Talking about the actual bushing in relation to the block and chassis)

They had an article in the most recent Peterson's about engine swaps, and they recommend keeping the bushings as close to the block as possible, because like you said, it reduces the leverage the engine can apply to the mounts/bushings. Basically useless info now, as everyone already said that, but I wanted to feel wicked smaht.

I can't wait to go wheelin next weekend.

Same here brah, I'm going out to work on the ZJ again right.......NOW....

The only thread on ifsja's offroad section that is actually a build is some guy with one link rear and 1/4 ellipticals out back on a bobbed waggy. I should be envious, that's totally my style, except I hate it. Everyone on ifsja is mind blown by it.

Link?

 

[cmelo]

Re: THe NAC Lots-O-Post Thread

http://www.ifsja.org/forums/vb/showthread.php?t=162763

 

[kastein]

Re: THe NAC Lots-O-Post Thread

They had an article in the most recent Peterson's about engine swaps, and they recommend keeping the bushings as close to the block as possible, because like you said, it reduces the leverage the engine can apply to the mounts/bushings. Basically useless info now, as everyone already said that, but I wanted to feel wicked smaht.

I think that reduces leverage on the mount bolts/bosses... but it certainly increases it on the bushings themselves.

Think about it this way... obviously you can't actually do this, but put one bushing right at the center of the engine, on the crankshaft. Obviously you're going to be able to twist the motor every which way.

Now put two bushings, ten feet apart, with the motor centered between them. It's gonna take a hell of a lot of torque to even slightly deflect the bushings 5 feet out.

Neither of these is a real world case, but considering both extremes will usually lead to understanding which way will improve things and which will make them worse.

I completely agree that shorter block to bushing mounts = less leverage on the mounting bolts, though. That's probably more helpful, since the bolts are in a set pattern and of a set size that you can't really change, you can always change your setup to run a beefier bushing.

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

Sat with a guy on the chairlift today who's an anaesthesiologist...he was gonna be a urologist until he found out how hard it was. (chuckle)

He had a most interesting story that began with an old dude with a prostate problem, and ended with a cop puking after a high-speed chase to the hospital with the uruological surgeon being the culprit.

I shall retell this story later, it figures that I'd end up sitting next to someone like that. :laugh:

Off to walk down to the lakefront and visit the local microbrewery here...then find dinner somewhere and get ready for rock n roll karaoke tonight. And blackjack.

 

[ROBZ95Xj]

Re: THe NAC Lots-O-Post Thread

imma thinkin i should go to the garage and attempt to pick up and organize the mess thats in there, im pretty sure you guys call them tools, only issue is im to lazy to walk out to the garage

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

This microbrewery kicks ass.

Sat down next to some other random dude from Chicago and it turns out we've been to a lot of the same steel mills in that area for various reasons. Had a good time trading work stories and I'll probably find him on the casino floor later...

Having one more spectacular pale ale here then back to the hotel to probably take a nap before seeing what happens tonight...I'd like to get an early start tomorrow and rip the shit out of some fresh groomers before they get all slushy and chopped up. Only made it to 62 MPH today but logged 23 miles of trails, not a bad day.

 

[cmelo]

Re: THe NAC Lots-O-Post Thread

I think that reduces leverage on the mount bolts/bosses... but it certainly increases it on the bushings themselves.

Think about it this way... obviously you can't actually do this, but put one bushing right at the center of the engine, on the crankshaft. Obviously you're going to be able to twist the motor every which way.

Now put two bushings, ten feet apart, with the motor centered between them. It's gonna take a hell of a lot of torque to even slightly deflect the bushings 5 feet out.

Neither of these is a real world case, but considering both extremes will usually lead to understanding which way will improve things and which will make them worse.

I completely agree that shorter block to bushing mounts = less leverage on the mounting bolts, though. That's probably more helpful, since the bolts are in a set pattern and of a set size that you can't really change, you can always change your setup to run a beefier bushing.

You might want to do your experiment and get back to us. Also, not sure why you're trying to compare no moment arm to a moment arm. Of course it would act completely differently. Stop messing with people's minds Ken.

 

[kastein]

Re: THe NAC Lots-O-Post Thread

wow you use fancy words! WTF is this moment arm crap?

alright, put the motor mounts 3" from center instead of on the center. Almost the same result, same logic.

 

[cmelo]

Re: THe NAC Lots-O-Post Thread

wow you use fancy words! WTF is this moment arm crap?

alright, put the motor mounts 3" from center instead of on the center. Almost the same result, same logic.

:doh:

I'm not sure how you get your results. The longer the arm the more force the bushing sees. The force is applied by the engine so the more leverage you give the engine the more force the bushing will see. How this could mean the engine would will move less is beyond me. I tend to think the more force you put into a bushing the more it will move, I dunno, maybe I'm crazy.

 

[kastein]

Re: THe NAC Lots-O-Post Thread

You're looking at it wrong, I think.

Torque = radius * force

so say the engine is capable of producing 300 foot pounds. That means it'll produce a force of 300 pounds perpendicular to a 1 foot long arm on the crankshaft.

Or, it means it'll produce a force of 600 pounds perpendicular to a 6" arm. Or 1200 pounds perpendicular to a 3" arm. Or if you go the other way and make the arm longer (the bushing further from the centerline of the crankshaft) the force seen by the bushing decreases, say the arm is now 2 feet, 300 foot pounds would result in a force of 150 pounds at 2 feet.

It's foot*pounds, not pound/feet or foot/pounds.

Hell, another example - a breaker bar... the further away from the axis of rotation (the crankshaft) you are, the less force is required to produce the same torque on the nut. Looking at it the other way, the same torque at the nut results in less and less force applied the further you get from the axis of rotation.

 

[mini=man]

THe NAC Lots-O-Post Thread

any opinions on ryobi li-ion drills? i use one for work and like it, but i havent been using it for a long time. thinking about picking up the 18v li-ion ryobi impact driver and cordless drill set from home depot.. on sale for $150.

Gross i hated my ryobi drill. I got my dewalt lithium 20v impact driver and drill for 149 at lowes. MUCH better. In use mine at work everyday all day. The battery kicks serious dick.