Ok, I have an 87 Camaro with the cable speedo. I have swapped over to a 730SD ecm, to get around the expected Electric VSS signal the ecm was looking for I disabled the magnetic switch with the prom. No problem right? Well I'm wanting to go to a t56 sometime, maybe not right now but would like to do as much research as possible. Would it be easier to switch over to a 90-92 guage cluster? would it fit into my dash(I would assume that it would) or should I just go with a dakota digital setup?


Thanks,
Brendan

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1987 IROC-Z L98,SR,EB 6085's,LPE 219/219 Cam, Crane 1.6RR, EB TPI Base, 58mm TB, Stock T5, 30lb SVO, AFPR, K&N, EB TES, Catco Cat, 3" Borla Cat-Back, Accel cap,rotor,distro/other crap, Aluminum DS, 94 Disk Rear, Adjustable Prop Valve, Precision 3.73 Gears, Weld in Sub-Frame Connectors, Hotchkis LCA's, KYB Shocks/Struts, Poly Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm, Big stereo, 730SD Conversion.

To see the ROC, Check out the webpage Here

 

if you have any info on were to get a t-56 please let me know i am looking to put one in my 67 ss 396 chevelle and i would go aftermarket on those gauges

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87 IROC-Z 305tpi
still $h!ten on
rustangs

 

Just bringing up an old topic, Can anybody answer me on the can I use a 90-92 cluster in my current dash??

 

ttt

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1987 IROC-Z, engine, tranny, and other "stuff"

 

I don't believe that the '90 - '92 cluster will fit without either swapping the gauge movements or modifying the cluster. You should be using an electronic ('90 - '92) VSS in your 700R4 or a T5 to drive the VSS input of the ECM. The ECM has the VSS buffer built into it, so it outputs the 4000 pulse / mile signal for the non cable driven speedo & the 2000 pulse / mile signal for the cruise module.

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Tim

1992 Z28, 305 TPI 5 speed, 12.0 sec @ 114.8 mph

1984 Berlinetta 305 TPI Auto, 13.8 sec @ 99.7 mph

 

Tim,
So basically, what your telling me is that I could get do away with my cable driven speedo, put a electric VSS on my T5, run that to the cable speedo vss, then to the cruise control VSS wires? Would that work? If so that would be great.

Brendan



[This message has been edited by leirch (edited November 21, 2001).]

 

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Tim

1992 Z28, 305 TPI 5 speed, 12.0 sec @ 114.8 mph

1984 Berlinetta 305 TPI Auto, 13.8 sec @ 99.7 mph

 

Tim,
I thought the vss for the cable driven system was on the back of the speedo itself? Then it went to the ecm, but even if you could hook into that, the needle wouldn't be turned, correct?

 

That's absolutely correct. And, you really can't swap the gauges. They're completely different in shape, size, etc.

What you CAN do is hack the hell out of both a 90-92 cluster and your dashboard. Then you have to repin the connectors, because my 84 wiring and the 90-92 wiring share exactly ONE pin in the same location, and that's a measely ground.

If you go to http://www.camaro.dnsalias.com:8008/ and look in the "84SC" subdirectory, I've got some pics in there including a "test fit" of the gauge cluster in the dash. When it's done I'll have a write-up on it if anyone wants one.

FYI, it's probably easier just to swap the whole dash, which is what I'm planning on doing in the future.


[This message has been edited by 99Hawk120 (edited November 26, 2001).]

 

You are correct. The VSS and VSS buffer for a cable driven speedo system is located on the rear of the cluster, but you can't use the output of that VSS buffer to drive the 730 ECM. The 730 expects a signal from a magnetic pickup coil (the trans mounted VSS). Also, you are correct in that the cable driven speedo cannot be driven by the output of the 730 ECM - you will need an electronic speedo - either a '90 - 92 style, or an aftermarket speedo that may be driven from the 4000 pulse per mile output of the 730 ECM.



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Tim

1992 Z28, 305 TPI 5 speed, 12.0 sec @ 114.8 mph

1984 Berlinetta 305 TPI Auto, 13.8 sec @ 99.7 mph

 

For those who are too lazy to look for it, here's the mock-fitting of the 91 cluster in my 84: