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-   -   speedo adapters (https://forums.maxperformanceinc.com/forums/showthread.php?t=853636)

unruhjonny 10-01-2021 01:01 PM

speedo adapters
 
1 Attachment(s)
I have these two adapters here;
There are not the more common (at least more common type I have seen) which are the compact rectangular ones which seems to have a built in cable(?);
I am guessing that these ones require a speedo cable which is longer than the cable housing - is this correct?

https://forums.maxperformanceinc.com...1&d=1633107775

It's either that, or I need something else to connect the speedo cable from my car to the gear in my transmission.

Can anyone confirm what I need to do to use these?

I am incline to use the longer of the two at a later point, because it would allow me to run all the factory stuff for my (3.55:1 geared) car, but run a 3.90:1 gear set;
At least that's how my math works out.

3.90 x 0.909 = 3.55

This one (the longer of the two) has the following stamped on one of the circular end faces:
6476884
1:0.909
005 (upside down and small "M") 2

The other one has the following stamped on BOTH of the flat circular end faces:
1565210
1:0.866
043C1

Thanks in advance for helping me out!!

unruhjonny 10-02-2021 09:07 PM

1 Attachment(s)
Is this what I'm missing?

https://forums.maxperformanceinc.com...1&d=1633223176

This shows a "key" being used for the adapter;
is there a part number, or way I can order one?

Goatracer1 10-02-2021 11:37 PM

I think you are looking at it backwards. The key should be in the adapter already right above the section with the gear. With the gear in the transmission your cable will thread on the other end that has the fine threads.

unruhjonny 10-03-2021 03:01 PM

1 Attachment(s)
Quote:

Originally Posted by Goatracer1 (Post 6284228)
I think you are looking at it backwards. ...

When I take the speedo gear housing off, this is what I see:

https://forums.maxperformanceinc.com...1&d=1633287581

I have suspected I have been missing something to make these function;
How am I looking at this "backwards"?

NeighborsComplaint 10-03-2021 04:51 PM

You're missing the key that goes between the driven gear housing and the adaptor in place of the cable.

unruhjonny 10-03-2021 05:03 PM

that's what it's now looking like to me;
Can anyone help me positively id the correct key(s) I need?

Half-Inch Stud 10-03-2021 07:24 PM

....i have a couple of the 90* 1:1 ratio sitting nice, will never use.

Goatracer1 10-03-2021 11:42 PM

Sorry I didn’t know you had disassembled them. If you can’t find the missing keys I would think you could make them without too much trouble.

Goatracer1 10-09-2021 12:52 AM

SpeedometerCablesUSA has those keys in a bunch of different sizes.

unruhjonny 10-09-2021 10:46 AM

Thanks for the tip!
I will look them up.


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