[Sway Bars]

Hey TrboDslHD,

 

Nice bars, but I see a potential problem that a few manufacturers do - the bolts are too short.  What I mean by too short is that the bolt shank (not the bolt threads) should make full contact with the supports.  Even if you need to install a few washers, the threaded part of the bolt should stick out beyond the bar-link connection and the link-connector connection.  If not, over time, the threads will flatten out, and the connection will get sloppy.  Also, once the connection get loose, the holes tend to become oval.  This does not happen over night, so not to worry, but it only takes a few bucks to fix.

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Pics please!!

[Big Brakes]

Jesse James is a genius.

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Plus, he got Sandra!

[The Challenger is Back!]

Drool...

[FS: 1996 Impala ss]

That's a great price for a great car!!

[1969 Lincoln Continental - A true Pimpmobile!]

Do you have any pics of the real car?

[Big Brakes]

One of the biggest problem with the truck we are talking about, is..the weight! When weight is added to the problem of stopping, a big brake is needed! Even Jesse James states, when adding big wheels, you must add big brakes also! The Mov'it kit is the best out there and it has a design to be maintained for the life of the brake kit, unlike others.

[Brake Problem]

I would just change them to Hawk HPS pads. A much better product, and only $75 per axle, not much to get rid of the noise.

[Sway Bars]

Les Brown,

 

Is there any chance of a GP on Swaybars with your company? I tried to use your website but looks like you are still constructing that.

 

I would like either a Hotchkis or Fredirico set up but alway looking to save $.

 

 

 

Thanks feel free to PM me back on that matter.

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I have no problem offering a GP. However I have tried to contact the Admin/Moderators for permission and have not recieved a reply. I do not want to have them upset with us at Speed Inn.

 

We have 2 sets in stock ready to ship so feel free to contact us.

 

If the moderators read this and will approve a GP please send us a PM and we will post it ASAP.

 

Les Brown

Speed Inn

510-259-1464

[Sway Bars]

Our take on the Hollow vs. Solid discussion

 

Hollow vs. solid

 

Based on SAE roll stiffness calculations, a hollow sway bar is approximately 10% “softer” than a solid sway bar of comparable diameter and geometry due to increased bending in the arms which lowers its rate. The hollow sway bar can be made in a larger diameter to compensate for the bending in the arms and has a definite weight advantage over the solid bar. However, the solid bar has an advantage in that it can be heat treated while the hollow sway bar cannot.

 

Why Heat treated material?

 

The tensile strength and fatigue strength of heat treated 4140 Chrome Moly Steel is 72% stronger than a cold drawn 1045 steel. (see below) This is important because aftermarket sway bars are significantly larger than a stock bar but have to fit in the same package constraints as the stock bar resulting in higher stresses. Using a high quality material allows the sway bar to be worked at its limits without durability concerns. Frederico manufactures sway bars for off road applications (such as the U.S. Border Patrol) where the customer fatigues and breaks a non-heat treated sway bar. Using heat treated steel eliminates the breakage issue because of its higher fatigue strength. Anywhere the limits of the suspension are repeatedly tested (such as in autocross, racing, off-road, and on-road performance pickups, lifted, and lowered applications) requires the use of a high quality material to avoid fatigue failure.

 

 

4140 with 1550 deg Quench 1000 deg Temper

Tensile Strength, Ultimate 1075 MPa

156000 psi

Tensile Strength, Yield 986 MPa

143000 psi

Elongation at Break 15.5 %

15.5 % in 50 mm

Reduction of Area 56.9 %

56.9 %

Modulus of Elasticity 205 GPa

29700 ksi

 

 

 

1045 Cold Drawn

 

Tensile Strength, Ultimate 625 MPa

90600 psi

Tensile Strength, Yield 530 MPa

76900 psi

Elongation at Break 12 %

12 % In 50 mm

Reduction of Area 35 %

35 %

Modulus of Elasticity 205 GPa

29700 ksi

 

Les Brown

Speed Inn owner

510-259-1464