coil over cross member with NEW spline sway bar

[tech@scottshotrods]

Here it is guys... let us know what you think

[N2TRUX]

Thats some sexy pics your posting there.

[tech@scottshotrods]

Thanks Ken!

[jmedero]

Nice work guys!!! Turning it up a notch huh?
Posted via Mobile Device

[Scottshotrods]

Originally Posted by jmedero

Nice work guys!!! Turning it up a notch huh?
Posted via Mobile Device

We got some more stuff coming.

1.We will have our bolt-in rear 4-bar for c-10 with a rear step notch coming
shortly.

2.We have more stuff coming but cannot tell you guys what it is yet.lol

Justin

[DollaBill]

what kind of technical specs does this kit produce? camber curve, bumpsteer, scrub radius, roll center, etc.?

[Scottshotrods]

Specs will be posted soon today or wed.
Thankyou,
Justin

[Scottshotrods]

Here are some specs of our bolt in coil-over ifs for c-10 trucks.Keep in mind that are airbag version is differnt on the specs.This will also change on your tire dia as well.General specs and keep in mind all of our frontends are differnt in many ways.

1.The track we build these to is 62 1/2

2.Camber curve 1.750 this is at ride height to full compresed total suspension gets 6 inches of travel.

3.Bump steer 2 -2 1/2 degrees through travel of suspension

4.Scrub radius 2 1/16 at ride height

5.Roll center changes 1 13/16 this was all tested on a 28' tall tire.

[DollaBill]

Originally Posted by Scottshotrods

Here are some specs of our bolt in coil-over ifs for c-10 trucks.Keep in mind that are airbag version is differnt on the specs.This will also change on your tire dia as well.General specs and keep in mind all of our frontends are differnt in many ways.

1.The track we build these to is 62 1/2

2.Camber curve 1.750 this is at ride height to full compresed total suspension gets 6 inches of travel.

3.Bump steer 2 -2 1/2 degrees through travel of suspension

4.Scrub radius 2 1/16 at ride height

5.Roll center changes 1 13/16 this was all tested on a 28' tall tire.

couple more questions what is the caster? and what height of roll center does kit get? does steering toe in or out during bumpsteer? TIA

[lakeroadster]

Cool... Sprint Car Inspired Sway bar. Have you done any load testing on the arms? Are you concerned about them bending or twisting axially under load due to the bend?

[tech@scottshotrods]

Originally Posted by lakeroadster

Cool... Sprint Car Inspired Sway bar. Have you done any load testing on the arms? Are you concerned about them bending or twisting axially under load due to the bend?

This sway bar is engineered and made by speedway engineering. They've been making this sway bar for many years with alot of success in the winston cup nascar serries with holding 200mph plus speeds. I think this sway bar will hold up to any thing your C-10 can throw at it!

[Scottshotrods]

To add to the sway-bar post here.Speedway eng has been making sway-bars for over
35 years and they have been proven over and over by many race teams and many and
I would say all Companies who sell a spline bar by them from Speedway and the arms
that are in question are made out of 3/4 thick 4130 steel cnc machined precision broached and timed.Hopefully this helps

[lakeroadster]

So are you saying the arms on your set-up are heat treated steel arms like those used on the cup cars?

Only reason I ask is the bend bend lines on the arms in the photos you posted above don't look like heat treated steel based on the steel displacement at the bends? (Arms shown below are from Speedway International)

Thanks,

John

[Scottshotrods]

Originally Posted by DollaBill

couple more questions what is the caster? and what height of roll center does kit get? does steering toe in or out during bumpsteer? TIA

Our caster in our coil-over set up was at 1 degree of caster at ride hieght
and increased to just 1 3/4 degrees of caster at full compression.

Roll center was tested at ride height to full compressed

Toe goes out not in during bump steer

[Scottshotrods]

Originally Posted by lakeroadster

So are you saying the arms on your set-up are heat treated steel arms like those used on the cup cars?

Only reason I ask is the bend bend lines on the arms in the photos you posted above don't look like heat treated steel based on the steel displacement at the bends? (Arms shown below are from Speedway International)

Thanks,

John

The arms we buy from speedway they come in straight and they are not heat treated.We do bend them here in house and NEVER had one break or fail.I have had many meetings with Kenny from Speedway eng and I will say he has been making these parts for some time now and never have had any failures at all.

I would say it will take alot of force to break these arms and I will say there are not to many trucks or cars that really take the abuse of the race car that is used for racing only.

[68 short step]

looks great, and look forward to seeing what all you guys are going to offer..really top notch guys
the only 'improvement' id do, is round the corners of the sway bar arms, at the links to the control arm..that make sence?

[lakeroadster]

The Speedway Engineering catalog states “bend them yourself and have them heat-treated locally”. Do you heat treat them after bending them?

With the drastic bends you show in the photos above I would be concerned with the arms bending or rolling over during loading, not breaking.

From an engineering perspective, wouldn’t the fact that our trucks are considerably heavier than a cup car, and the roads we drive on have defects, speed bumps – pot holes - etc. (they aren’t “speedway smooth”), mean that our street truck applications for a sway bar would be much more severe?

Thanks,

John

[Scottshotrods]

Originally Posted by 68 short step

looks great, and look forward to seeing what all you guys are going to offer..really top notch guys
the only 'improvement' id do, is round the corners of the sway bar arms, at the links to the control arm..that make sence?

Good idea and we discussed this the other day on rounding the ends will look even better.

[DollaBill]

Originally Posted by Scottshotrods

Our caster in our coil-over set up was at 1 degree of caster at ride hieght
and increased to just 1 3/4 degrees of caster at full compression.

Roll center was tested at ride height to full compressed

Toe goes out not in during bump steer

thanks justin. wanted to know the roll center height not the ride height it was tested at please clarify. how does this front end handle? is this your performance version? Is the bag option the same specs but with bags our is it different? Sorry for all the questions. TIA
Posted via Mobile Device

[Scottshotrods]

Originally Posted by DollaBill

thanks justin. wanted to know the roll center height not the ride height it was tested at please clarify. how does this front end handle? is this your performance version? Is the bag option the same specs but with bags our is it different? Sorry for all the questions. TIA
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Our airbag set up is a little different and we can also build our frontends
to customers specs as well if somebody wants something differnt.For the
handling on this frontend our customers who have this set up now our
very happy with the ride quality.We are building a shop truck in the shop
now that will be our truck to take out and abuse and we will have this at many shows this year where customers will be able to take it out and drive
to see how it feels and handle.Maybe we will be able to meet up this year at
a show we will give you the keys to go out and drive and you can be the judge on how it handles and then you can let us know.We are doing around
20 shows this years all around the country.

[zwhb02]

and the price is ?????

[Scottshotrods]

Originally Posted by zwhb02

and the price is ?????

P/m sent
Justin

[Captainfab]

I would have to agree with you on this John.

Myself being a fabricator, I am concerned that those arms would fail at those bend points. The material is severely displaced at the one brake line. This has drastically stretched the metal beyond it's acceptable limits. To form .750, A36 mild steel a 8" vee die and a punch with a 1.312" radius is the correct tooling. It appears that this tooling was not used.

I'm not just trying to bust your balls Scotts Hotrods, but I feel a responsibility to point out as what I see as a failure point on that sway bar arm. I would hate to see you end up in trouble over something like that on an otherwise nice front suspension.

Originally Posted by lakeroadster

The Speedway Engineering catalog states “bend them yourself and have them heat-treated locally”. Do you heat treat them after bending them?

With the drastic bends you show in the photos above I would be concerned with the arms bending or rolling over during loading, not breaking.


From an engineering perspective, wouldn’t the fact that our trucks are considerably heavier than a cup car, and the roads we drive on have defects, speed bumps – pot holes - etc. (they aren’t “speedway smooth”), mean that our street truck applications for a sway bar would be much more severe?

Thanks,

John

[Scottshotrods]

Originally Posted by Captainfab

I would have to agree with you on this John.

Myself being a fabricator, I am concerned that those arms would fail at those bend points. The material is severely displaced at the one brake line. This has drastically stretched the metal beyond it's acceptable limits. To form .750, A36 mild steel a 8" vee die and a punch with a 1.312" radius is the correct tooling. It appears that this tooling was not used.

I'm not just trying to bust your balls Scotts Hotrods, but I feel a responsibility to point out as what I see as a failure point on that sway bar arm. I would hate to see you end up in trouble over something like that on an otherwise nice front suspension.

On thursday we will post some pictures of our arms and you guys can see the bends are fine and smooth as well.The pictures showing above were done as a mock up purpose only never USED on any truck AT ALL.They are HEAT TREATED after they are bent as well.Thankyou very much for all the comments and people being concerned as well.
Justin

[tech@scottshotrods]

here are pictures of the production arms as you can see we do heat treat them






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