Can you post a few pictures of how you fabbed up the LR TB cam? I definitely need to do this.



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Yeah for sure. I’m away right now but will do Monday

 

Here are some pics as promised. Of note I met a guy with a 6.0 and a stock throttle body and his works correctly. So this issue may be with the aftermarket throttle body.

 

Nice. Thanks. Yea I have a 102mm aftermarket TB. This gives me a good idea of what needs to be done. I think I'm gonna tig weld mine on.

 

yeah so same prob on yours. Cam is steel and TB cam is aluminum. I guess you could tig it to the shaft. I wanted to be sure of placement. I stuck it on with self tappers to test everything. Then tapped the holes and used machine screws.

 

Also I built a circuit using a relay that tells the GM ECU that the ac is on so it kicks the fans up and raises the idle. May not be an issue with a stock cam, but the Truck Norris cam is choppy

 

Would love to do this on my build! Can you provide some detailed instructions on how to set the circuit up?
Also curious if anyone has figured out how to program the GM ECU to turn the fans off after a certain highway speed is reached.
I've tried searching for that and couldn't find a solution. Seems like the only way to control the fans is related to the coolant temp.
Nothing around the speed that the car is travelling. I assume that the head-on force of air coming in through the grill would be quite strong and the fans would struggle against it?

 

I've been searching on Google on how to do for a long time. Do you mind sharing?

​​​​​For now I've played with the timing a bit where I've reached a happy medium so it doesn't stall 90 percent of the time but I'd definitely would like to bump the rpm up to around 1000. I have the chuck Norris cam as well.

 

OK it’s pretty easy actually. What you do is you take the green and black wire that goes to the rover AC compressor as your trigger wire so you tap into that and feed it to one side of the relay with the ground on the other side of it, so it latches the relay. Then you take the three wires that went out of the GM harness to the AC pressure transducer and you take the gray wire which is 5 V and put that in one side on the other side is the trigger wire that goes back to the ECU that’s red with a black stripe on the red with a black stripe side you put in a resistor that is somewhere between 80 kg ohms in 85 kg ohms which then results in a feed of about 2 V to the ECU when the AC compressor is functioning. This will turn on the fans and raise the idle in the ECU. Every time the air conditioning is on. The only downside is it turns the fans on regardless of the temperature but that’s a small price to pay.

 

KOhms. Sorry. Voice to text actually did a pretty decent job. The third wire in the gm harness is black and you don’t use it.