Indy DH plate

[partninjas]

Originally Posted by Petary791

By the way, that completely defeats the purpose of these. If you're going to wedge these why not just run stock Indy plates?



And that just makes no sense to me. If you can turn quicker you can whip out a slide easier. If it turns slower it's got less "flicking" motion if you will. Oh well.

These plates are a 17* dewedge. If you used wedges risers you can only get 10*. Not to mention these are lower than a stock indy even with wedges. Plus they're CNC sexyness !

[CarlTheSmokingCrab]

AND They're drilled for old school. No more drilling into my boards!

[Petary791]

Or you can drill into your trucks! Cool stuff though, I fixed my bite problem and my front truck is crazy awesome.

[Sandwich]

I came in early this morning and made some 5, 10, and 15 degree Indy base plates.
Here they are from left to right, among all the other crap on my desk, four 15 degree plates, four 10 degree plates, and four 5 degree plates, for all your Indy needs.


These are the four 15 degree plates.


Prices are the same as the 0 degree plates.
Thanks
Dave

[gabriel[abc]]

does anyone know what angle is a regular indy baseplate?

[Petary791]

I thought I heard 17º, which is equivalent to about 60º.

[Shift]

Originally Posted by gabriel[abc]

does anyone know what angle is a regular indy baseplate?

~17 degrees

[enemy combatant]

Originally Posted by Petary791

I thought I heard 17º, which is equivalent to about 60º.

The kingpin angle has nothing to do with the pivot angle of the truck. The pivot angle is defined by the point in the middle of the pivot pin hole and the point where the centerline of the kingpin intersects the plane of the hanger's bushing face. The line running through these two points is the pivot axis and the degree to which this line deviates from the horizontal is the truck's pivot angle.

Please note that this line is the pivot axis irrespective of the angle at which the pivot pin enters the pivot hole or what angle the hanger face is in relation to the pivot axis.

Also note that while all Chicago geometry trucks have the hanger face perpendicular to the kingpin many "conventional" trucks of this type (most notably Bennetts and Indys) do not have a pivot pin that aligns with the pivot axis but most Randal style "reverse kingpin" trucks do. What are often called "offset" trucks take this alignment one step further by having the centerline of the rear axles intersect the above mentioned hanger/kingpin pivot point.

If the pivot angle of an Indy is indeed 60 degrees (which I am not at all certain that it is) then changing the kingpin angle 17 degrees in order to make it vertical would result in a pivot angle of 43 degrees.

[streetheap]

Originally Posted by Sandwich

I came in early this morning and made some 5, 10, and 15 degree Indy base plates.
Here they are from left to right, among all the other crap on my desk, four 15 degree plates, four 10 degree plates, and four 5 degree plates, for all your Indy needs.



Thanks
Dave

Uh....those are Kooky hangers(?)
PM'd about some plates.

Originally Posted by enemy combatant

The kingpin angle has nothing to do with the pivot angle of the truck. The pivot angle is defined by the point in the middle of the pivot pin hole and the point where the centerline of the kingpin intersects the plane of the hanger's bushing face. The line running through these two points is the pivot axis and the degree to which this line deviates from the horizontal is the truck's pivot angle.

Please note that this line is the pivot axis irrespective of the angle at which the pivot pin enters the pivot hole or what angle the hanger face is in relation to the pivot axis.

Also note that while all Chicago geometry trucks have the hanger face perpendicular to the kingpin many "conventional" trucks of this type (most notably Bennetts and Indys) do not have a pivot pin that aligns with the pivot axis but most Randal style "reverse kingpin" trucks do. What are often called "offset" trucks take this alignment one step further by having the centerline of the rear axles intersect the above mentioned hanger/kingpin pivot point.

If the pivot angle of an Indy is indeed 60 degrees (which I am not at all certain that it is) then changing the kingpin angle 17 degrees in order to make it vertical would result in a pivot angle of 47 degrees.

[enemy combatant]

Originally Posted by streetheap

Don't worry street. All that means is that I'm gonna try out a 215 rear dewedged with the 15 degree wedges from my Khiro wedge kit before I bust out for the Cindrich plates!

[streetheap]

Originally Posted by enemy combatant

Don't worry street. All that means is that I'm gonna try out a 215 rear dewedged with the 15 degree wedges from my Khiro wedge kit before I bust out for the Cindrich plates!

Haha. Gotcha. How tall are the 15* wedges at the heel? I've always wondered the ratio....

[rodgon]

wait....

so the 0 degree plates are roughly what a 35* plate would be? as in DH status?

or what would be the euivalent to the 50* 42* and 35* ( a rough estimation... i know they arent the same style trucks.) just trying to establish the stability issue. ^_^

[streetheap]

Originally Posted by rodgon

wait....

so the 0 degree plates are roughly what a 35* plate would be? as in DH status?

or what would be the euivalent to the 50* 42* and 35* ( a rough estimation... i know they arent the same style trucks.) just trying to establish the stability issue. ^_^

I've run a stock front and 0* rear a lot in my Voodoo XL. You are right in thinking they're quite different from Randals, etc.
Stability-wise, it reminded me most of a 52/28 (Caften- 35/28 ) Randal setup that I've used quite a bit. A bit of a comparison-stretch though.

[enemy combatant]

Originally Posted by rodgon

so the 0 degree plates are roughly what a 35* plate would be? as in DH status?

I've never tried to precisely measure the pivot angle of a stock Indy but I'm guessing they are closer to 45 degrees than they are to 60 so that would put the 0 degree kingpin plate more in the 28 degree range.

Originally Posted by streetheap

You are right in thinking they're quite different from Randals, etc.
Stability-wise, it reminded me most of a 52/28 (Caften- 35/28 ) Randal setup that I've used quite a bit. A bit of a comparison-stretch though.

Indy hangers don't so much rotate about the pivot axis as they "fall over" it. The hanger face rotates about the bushing at a weird angle before it binds and the pivot pin tries to pull itself out of the socket.

They have a great initial action though, one with a lot of lean. It helps if your ankles are real loose when you ride. Indy trucks are very compliant to the skating surface. I like them.

[Gary in VA]

Dave, is that a manifold in the top left corner of the pic?

[Sandwich]

Originally Posted by Gary in VA

Dave, is that a manifold in the top left corner of the pic?

Ya
Its a prototype intake for a old GTO Ferrari engine.

[streetheap]

Originally Posted by enemy combatant

I've never tried to precisely measure the pivot angle of a stock Indy but I'm guessing they are closer to 45 degrees than they are to 60 so that would put the 0 degree kingpin plate more in the 28 degree range.




Indy hangers don't so much rotate about the pivot axis as they "fall over" it. The hanger face rotates about the bushing at a weird angle before it binds and the pivot pin tries to pull itself out of the socket.

They have a great initial action though, one with a lot of lean. It helps if your ankles are real loose when you ride. Indy trucks are very compliant to the skating surface. I like them.

Good knowledge there.
Great post.

[Gary in VA]

Originally Posted by Sandwich

Ya
Its a prototype intake for a old GTO Ferrari engine.

Cool, at first I thought it was for a dual port VW and then I saw the ports at the bottom were too far apart. Dual Webers fit on that or a stock carb?

[anatharc]

ok. i was thinking...
what if you dewedged the O* plate so it had a negative degree, and then flipped them 180* so that the KP was on the outside. basically running the plate backwards, but with the negative wedging would make it turn the correct way once turned backards.

or is that wrong? due to the hanger pivot angle?

just wondering. anyone wanna try it?

[Petary791]

You can actually run the kingpin negative on an Indy and still turn the correct way.

I've been GAS'ing for a 0º and 10º.... hard. I may just try dewedging my rear Indy over 7º then dewedging the front 7º to see how it feels and if I should shell out the $90.