700r4 speed sensor
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700r4 speed sensor
Ok guys, I have aquired a 93 4runner with a sbc and t350, swapped out the t350 for a 700r4 last night. Questions begin here, it has a 2 wire speed sensor can I make that feed the factory speedometer? Also what locks the converter on the factory trans in this truck,speed or rpm. Possibly both? I want it to be dummy proof with no switches or buttons
Just turn key and go. Any help would be greatly appreciated.
Just turn key and go. Any help would be greatly appreciated.
Last edited by redneckcustoms13; 10-04-2012 at 07:27 PM.
#3
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3 wire speed sensor?
The 700R4 does not have a speed sensor in the transmission, it would be in the transfer case. I suspect you're looking at the plug for the torque converter lockup.
TC control is done by the ECU, based on speed. I have a 700r4 adapted to a toyota tcase with the stock toyota speedo cable, and the toyota speed sensor in the cluster hooked up to the GM ECU. I am not getting lockup at this point, though, so I'm not sure the calibration is correct.
The 700R4 does not have a speed sensor in the transmission, it would be in the transfer case. I suspect you're looking at the plug for the torque converter lockup.
TC control is done by the ECU, based on speed. I have a 700r4 adapted to a toyota tcase with the stock toyota speedo cable, and the toyota speed sensor in the cluster hooked up to the GM ECU. I am not getting lockup at this point, though, so I'm not sure the calibration is correct.
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Did the speedo work with the TH350? You can convert it to mechanical like the 350 had pretty easily. Otherwise everything I've ever known is that the Toyota speed sensor uses a different pulse pattern than GM sensors, so while you could probably wire it up, it wouldn't send the correct signal.
There are several aftermarket options to control lockup, here's one from TCI
http://www.jegs.com/p/TCI/TCI-200R4-...48599/10002/-1
There are several aftermarket options to control lockup, here's one from TCI
http://www.jegs.com/p/TCI/TCI-200R4-...48599/10002/-1
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No it did not work with the 350. Idk how to deal with pulse resistance, I have never had this issue before but im all about learning.
Wired the lock up on a toggle till I can order the kit above(thanks for the link by the way) dropped rpm significantly just as I wanted. Now to just get the speedometer working
Wired the lock up on a toggle till I can order the kit above(thanks for the link by the way) dropped rpm significantly just as I wanted. Now to just get the speedometer working
Last edited by redneckcustoms13; 10-04-2012 at 07:35 PM.
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the originator of this thing obviously could not use a numerical means of calculating distance between two objects. The engine sits 1" closer to drivers side. The tail shaft of the transmission is 3" off center to the driver side. He also cut a 8"x6" hole in the firewall to clear the massive hei distributor. Im guessing he had no plans of anything other than a good sounding idle with this thing because it has a holley 600cfm carburetor that starves it. And the exhaust is constructed by 10 different pieces of tubing almost all a different size along with that he used factory manifolds and they hit both torsion bars and the steering shafts hits the driver side when turning ... basically some moron half way put this thing together and I am correcting their screw ups. Well as correct as a heavy ass small block gm engine can be in a Toyota that if it ever saw a v8 should be a 1uz
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It's not a resistance thing, it's a pulse per minute/second problem. You can always cut up a gauge cluster and add in aftermarket gauges but that gets spendy in a real big hurry. And a 600 that's jetted right should be plenty for a stock headed 350.
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Not changing the gauge cluster. I know its possible to make it work just haven't yet understood how. The carburetor may be enough for someone else i'll gladly sell it. I have a 750 going on it.
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