Suspension and Chassis Questions about your suspension? Need chassis advice?

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Old Dec 15, 2004 | 09:16 PM
  #51  
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From: Myerstown, PA USA
A-Arms are here:

http://www.spohn.net/category.cfm?categoryid=1181

We should have the rest of the pics up by the end of the week.

Front and Rear coil over kits, pictures, etc. should be up early next week.

We're working on a K-member. I don't have an ETA to give, it's too early to tell. When it's coming along further I'll give some updates on that.

Thanks guys.

Steve

Anyone with a fourth gen, we put those up too:

http://www.spohn.net/category.cfm?categoryid=1180
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Old Dec 15, 2004 | 09:41 PM
  #52  
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Very nice stuff .....I have your rear LCAs and I was wondering why the spacer in the middle of the rod end is so much shorter than the outer spacer ?? For tension?? I have rod ended LCAs

Also could you list the weights of all the arms vs stock stuff on your sight??? just a idea
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Old Dec 15, 2004 | 10:19 PM
  #53  
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From: Myerstown, PA USA
Originally posted by Tony Walch
Very nice stuff .....I have your rear LCAs and I was wondering why the spacer in the middle of the rod end is so much shorter than the outer spacer ?? For tension?? I have rod ended LCAs

Also could you list the weights of all the arms vs stock stuff on your sight??? just a idea

Look at the bottom of each a-arm page and you will see a link to the a-arm weight chart. All the weights are on there.

Tension, correct. The outter spacer sleeves are what we want squeezed against the bracket. The i.d. sleeve is simply to bush the rod end down, we don't want that squeezed tight.

Steve
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Old Dec 15, 2004 | 10:27 PM
  #54  
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One thing about the K-membor will you be able to jack the car up on it cause i dont know if it is a good idea on some of the other aftermarket ones.
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Old Dec 15, 2004 | 10:35 PM
  #55  
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Originally posted by ebmiller88
You have an aluminum torque arm? I just don't see how that would be strong enough to serve it's purpose.



Ed
What about aluminum driveshafts?
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Old Dec 15, 2004 | 10:59 PM
  #56  
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From: forked river new jersey
Car: 1986 firebird trans am
Engine: 350
Transmission: 700r4
what is the point in coil over suspension ? can some one explain this to me. iv been trying to do research on it to see if its worth puting on the to buy list but i cant figure out the differance or performance value in it.
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Old Dec 15, 2004 | 11:06 PM
  #57  
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You can adjust the ride height.
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Old Dec 15, 2004 | 11:53 PM
  #58  
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From: forked river new jersey
Car: 1986 firebird trans am
Engine: 350
Transmission: 700r4
is that all they do? so their is no performance gain or advantage by geting them ??
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Old Dec 16, 2004 | 12:07 AM
  #59  
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From: Roscoe, IL
Car: 1991 Trans Am
Engine: LQ4
Transmission: T-56
Axle/Gears: 3.70
less unsprung weight also
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Old Dec 16, 2004 | 01:59 AM
  #60  
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Originally posted by zeek
what is the point in coil over suspension ? can some one explain this to me. iv been trying to do research on it to see if its worth puting on the to buy list but i cant figure out the differance or performance value in it.
1)The coil angle mimics the angle of the strut constantly due to it circumferencing one another. This allows for a 100% bind free operation of the coil movement throughout the travel range. There is no change of arch and rate of the top and bottom mount surfaces during travel. Conventional springs bind as suspension angles change- thus changing corner weights due to bind and resricting some freedom of movement

2)It is indeed less unsprung weight. This allows the susension to travel up and back down faster and smoother withut unsettling the chassis as much as the heavier stock setup.

3) ride height can be set at desired geometry level for best suspension angles, no more guessing game trimming coils to desired ride height and resulting in uneven side to side spring rates. coils retain proper frequencies due to retaining engineered design of coil length.

4) corner weights can be set percisely for optimal transition handling ( this is a big advantage)

5) with the rodend/coilover setup, more agressive camber and caster specs can be dialed into the alignment via rodend adjustments prior to setting the strutmounts.

This setup is going on my car ASAP. It doesn't get tricker than this. The quality of this coilover setup is unmatched by anyone on the market. PA and Profab do not come close in strength and safety. They have no fender bracing, and their kits are made specifically for lightweight drag car applications, not road racing. Again, this setup is going on my car- I would never in my life put one of the other manufacturers coilover setups on my car. Their sleeves alone are totally unsafe. They use a standard mass produced general sleeve that is manufactured for lightweight broad use and is only .065" thick before the threads are cut into them. Spohn's are custom made CNC units that are much thicker and will not break when they are strained, then adjusted futher on the thread crowns- I have heard of the other companies brand busting (first hand knowledge, not hearsay)

Last edited by vsixtoy; Dec 16, 2004 at 02:08 AM.
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Old Dec 16, 2004 | 06:36 AM
  #61  
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
What about aluminum driveshafts?
I can see why the driveshafts work..the force is rotational, not upward and the round aluminum tube can handle that. What I don't see is how aluminum and support the direction of force that a torque arm sees, the upward force of the rearend. See the difference? I'd think it would tend to bend the stuff. If it isn't a problem then why aren't tubular LCAs and other suspension parts made of aluminum? STRENGTH! And I keep hearing of guys snapping tubular torque arms during drag racing and an aluminum arm would be much worse than that...again, I just don't see it. If Dude will post a pic I'm sure a lot of us would like to see it. I've just never heard of aluminum being used on torque arms. Anyone got a link to one?


Ed

Last edited by ebmiller88; Dec 16, 2004 at 06:39 AM.
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Old Dec 16, 2004 | 09:02 PM
  #62  
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From: MN
Car: 85 SC, 86 Berlinetta
Engine: V6, V8
Transmission: 700r4, 700r4
I have a question for vsixtoy:

"4) corner weights can be set percisely for optimal transition handling ( this is a big advantage) "

What are corner weights and how do they affect transition performance?

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Old Dec 16, 2004 | 11:26 PM
  #63  
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Scorp,

A car with conventional springs can not be adjusted when the springs are installed into the car. Therefore, On any given car you can and usually always do have the corner weights jigher on one side than the other- thus making the car able to turn better in one direction that the other. By being able to set your corner weights, you can now control the amount of weight percentage that transfer diagonally when braking and entering a left corner or a right corner. You can set them equal (which is favorable for street driving) or you can set them favorable to lefthand corners in an example such as a road course that has 12 lefthanders and 7 righthanders whith a majority of the lap time focused on the straights and lefthanders. The car may run slightly slower in the righthanders than the competition, however it can make up and dominate the time spent in the greater # of lefthanders thus yeilding faster times.

Little stuff like this is why I dominate anything I have ever raced. Don't just learn to drive- learn to setup also. "The great Mark Donahue"

As a side note, This can be accomplished with comventional springs with the use of shims, but it is a real pain in the but to get everything correct and at the proper ride height without having varing spring rates.

Last edited by vsixtoy; Dec 16, 2004 at 11:31 PM.
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Old Dec 17, 2004 | 12:15 AM
  #64  
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From: Kansas City MO
Car: 84 Z..err 92 now
Engine: 402 LS1 Procharged-14 psi-629 hp!
Transmission: T56
vsixtoy- Why did you choose coilover vs airride? I have been looking at the Air Ride Struts for the camaro. And I have been reading some reviews about how well it handles compared to the stock suspension. I am guessing weight will be your answer,but fill me in. I am looking for something that will handle awesome and also ride better then stock. The air ride seems to be the answer but I am not sure about a noisy compressor or having to mount a air tank. I was also looking at the E-ride. But I am not looking for getting the slammed look like KandiedZ. My intentions are all performance and comfort.
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Old Dec 17, 2004 | 02:37 AM
  #65  
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From: Rutland MA
Car: 1 68 bird, 2 87 birds, a 92 bird...
Engine: carb'ed 305 in the 87, yuck...
Transmission: 700R4, for now....
Originally posted by Tony Walch
car is lowered a bit too 1.75 fr 1.5 rear...

Ive been down the 2am thing and it sucks
Aah, gotcha, ours is stock height

And if you think the 2am thing sucks, try the I just slept in the hammock behind the garage thing...

P.S. Hello to a fellow old pontiac man. Notice the screen name. That's my real baby
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Old Dec 17, 2004 | 07:42 AM
  #66  
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Originally posted by ebmiller88
If it isn't a problem then why aren't tubular LCAs and other suspension parts made of aluminum? STRENGTH!
Actually, think I remember someone made some LCAs out of aluminum on a website. I've seen both tubular and a set made out of a solid chunk.
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Old Dec 17, 2004 | 09:54 AM
  #67  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Originally posted by bottledbird68
Aah, gotcha, ours is stock height

And if you think the 2am thing sucks, try the I just slept in the hammock behind the garage thing...

P.S. Hello to a fellow old pontiac man. Notice the screen name. That's my real baby
Hello back at you ...

I have slept in the bed of a 70 ELcamino in a paint booth 3 guys and 3-4 days stripped primed painted and on the road to CarCraft Nats AH the good ol days ....total sleep for the deal wasn't more than 6 hrs
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Old Dec 17, 2004 | 10:15 AM
  #68  
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Originally posted by cdh67
vsixtoy- Why did you choose coilover vs airride? I have been looking at the Air Ride Struts for the camaro. And I have been reading some reviews about how well it handles compared to the stock suspension. I am guessing weight will be your answer,but fill me in. I am looking for something that will handle awesome and also ride better then stock. The air ride seems to be the answer but I am not sure about a noisy compressor or having to mount a air tank. I was also looking at the E-ride. But I am not looking for getting the slammed look like KandiedZ. My intentions are all performance and comfort.
All I can warn you is don't fall into that AirRide is a great ride crap. I have an air ride suspension on my work truck and it rides like crap when I inflate them. The truck handles much better when they are completely inactive. I have had two different setups on that truck now and have had Airride capabilities for about 10years with it. Its not for comfort or handling, it is for load assist. The only reason it is offere is so you can "show" lowrider your car if your into that kind of thing- I drive my cars hard.

Matter of fact, I just sidelined my worktruck for about a week until I can fix it. I just spun a wheelbearing on it and picked up a vibration, and my Detroit Lokcer is acting up making funny noises- it has a Currie 9" in it. Another holiday week project.

Last edited by vsixtoy; Dec 17, 2004 at 10:19 AM.
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Old Dec 17, 2004 | 07:09 PM
  #69  
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From: Kansas City MO
Car: 84 Z..err 92 now
Engine: 402 LS1 Procharged-14 psi-629 hp!
Transmission: T56
vsixtoy-Thanks for you opinion. I know Kandied had said that it rode better then anything he had tried. At work we install airride on custom trucks. And we have had nothing but trouble out of Airride products. I can get everything for cost, but I am gonna guess and say it would still be more money then the Spohn coilover setup.
Spohn- Will the coilovers interfear with tire and wheel sizes?
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