Low C1500

Does anyhave have an example of how to mount a TPS on a carb. I have an Edelbrock. I am trying to think of a way to mount it on the secondary blades (my secondarys open at approx 65% throttle). This would allow me to unlock the TCC when the secondarys open. And the TCC would be locked when only the primarys are fueling. Of course there would be rpm limits to the TCC.

Stock 747 code.

Any pictures or ideas would really help.

BMmonteSS

might want to look into a TPI or GN sensor I believe both of them have an arm that sticks out of the TPS. TBI just has a socket and would be hard to do anything with.

Low C1500

I didn't know this, I'll have have to do some searhing.

Tibo

iTrader: (15)

I am confused, are you running a carb, TBI or MPFI? I want to more about this, please.

Low C1500

I was running a TBI setup, then I bolted on a carburator, and kept the computer to run everything, but fuel (ie: spark, and TCC).

Most people who convert from TBI to a carburator, pull the computer right out and just use an old style HEI distrubutor. And if they want TCC lockup (700r-4) they usually mount a toggle switch on the dash.

I didn't want this, as I like have total control over the spark tables.

But the TPS is my only problem right now, and don't have control over the TCC, execpt for forced lockup @ 100km/h.

JPrevost

The TPS on my Holley TBI has a lever arm swiper. With a mounting bracket it would be possible to use. Another idea is a linear pot. It would be a lot easier to install but the more robust designs are $$. Other than that, what about having a microswitch that disables the lockup and lower the vss manditory lockup to something like 38mph?

Low C1500

I like the switch idea. I'm going to grab a level style TPS from the wreckers today, and see if I can fab something up.

dyeager535

Earlier trucks with the 700 (perhaps TH350C too?) used an entirely standalone TCC setup.

One vacuum switch, the brake pedal switch, think that prety much covers it.

I don't have any complaints about how mine operated.

Would seemingly be a much easier/less complicated than rigging a TPS up to a carb not designed for it.

Low C1500

That is sort of what I was origanlly going to do. But instead of a vaccum swith, I was just going to run my map sensor output into my ECM tps input. And when the map went above say 80kpa, the TCC would unlock. But I think this way would cause a high tps code to apear.