speedometer cable to electronic sensor what do i need?

[gtsfirefighter]

The elbow off the tranny keeps breaking on my car. Those bitches aren't cheap either. That last brand new one I put in lasted 91 miles before it broke and I installed all new cables with it also. I suspect the heat off the downpipe from the gt35r is killing it.

 

[Orion ZyGarian]

I'm wondering about a solution for this as well. All said and done, an MPH reading shouldnt be too hard to set up, but I'd really like to still have a working odometer, and really dont want to destroy a perfectly good cluster to make space for stuff like this.

I'm tempted to just start something from scratch with a series of gauges. Again, I'd like a working odometer though, preferably a working trip odometer as well. I'm not scared of a fancy setup like an iQ3, but I dont care for how it looks personally.

How does the digidash keep track of that stuff? I'd love an all digital dash (minus a digital tach), but not crazy about converting a rare RHD piece over with the "wrong" gauge placement comparatively.

 

[Enraged]

if you are cooking them with heat from the downpipe, maybe you should consider using some sort of heat protection. You can get "cool tube" in various sizes to cover the speedo cable, or you could wrap your downpipe with a variety of materials. Not sure why you would continually replace the speedo cable rather that fix the cause...

 

[gtsfirefighter]

Replaced the first elbow with a used one and it lasted a couple of days. Was told if both cable were bad it could be putting too much tension on the cable inside the elbow. That's when I replaced everything, both cables and the elbow and wrapped that section of the downpipe and cable with a heat wrap. That elbow lasted 91 miles. I have not since bought another and will not until I resolve the heat issue so I'm not continuously buying parts.

 

[1986.5supra_kid]

I have wrapped my down pipe twice and I have used the dei heat sleeve too. Next one will be ran across the transmission,I hope its long enough.

 

[Enraged]

I wonder if making a heat shield would help? Make one from aluminum or something?

 

[1986.5supra_kid]

Ran the new speedometer cable a different way. So far it works

 

[super51fan]

Did you replace with new parts or 20 year old used stuff? If you you did not buy new stuff that is probably the problem.

 

[1986.5supra_kid]

Well it was all used. They felt good too. No needle bounce. But when they were removed and the plastic housing is melted and drooping its obvious that it was heat problem not worn out. The long part was getting cooked by the down pipe and then it would lock up and the short one would try twisting it and tear up.

Now it is routed down the intake side,by the slave,then over the transmission by the shifter to the tail housing.

 

[supraguy@aol]

Was there enough cable length to route it that way without it stretching too tight?

 

[1986.5supra_kid]

Its pretty darn slack right now its drooping down past the slave for the r154. A automatic trans cable would probably fit too

 

[destrux]

There's a really simple solution to this.... get the marlin crawler electronic adapter that fits the trans to give the ECU a speed signal. Then buy an Autometer GPS speedometer and fit it into the stock cluster. They're pretty cool. Gearing and tire changes won't screw up your speed calibration anymore, since it actually uses satellites to read your speed.

 

[Poodles]

Then your odometer doesn't work...

 

[1986.5supra_kid]

Problem is solved. Just ran it on the opposite side of firewall and over the trans. Its been fine for weeks now

 

[Orion ZyGarian]

Then your odometer doesn't work...

This is what I've been trying to figure out as well. I've decided "Eff it" and I'm just going to find some aftermarket speedo/odo I can use

 

[Backlash2032]

Can you post up some pictures of how you routed it? I'm interested to see how you did it without kinking the cable too much...

 

[1986.5supra_kid]

Its would be hard to get picture s of but the best I can explain it that it runs down the firewall on the intake side of the engine/trans then over the trans in the middle and into the trans. Its not kinked. After 3 speedocables that's the least of things I want to work on again

 

[Backlash2032]

The only places I'd be worried about would be where it comes out of thr firewall, and then where it goes into the trans. I'm honestly thinking of routing it down the transmission side of the exhaust, since I've only had issues with the short cable melting..

Sent from my HTC Droid DNA

 

[1986.5supra_kid]

the factory way goes to the exhaust side and has a clip to hold it flat then it drops down the wall to follow the frame rail and into the trans.