TOPIC: More helpful mods for a 2000 5.3L Silverado

David Senger is a future repeated customer, and a future Gadgetman aswell! Im encouraging him to join the forum to learn more, so watch for him and be sure to give a big welcome!
Here are a few videos from my youtube channel of additional mods, and things we found along the way that helped his 2000 5.3L Silverado increase even more power! (mileage updates soon)

How is the vehicle doing? With all the mods I am very interested on his mpg.

Michael, thanks for showing these mods. That is nice clean work you did on that Chevy!

It would be nice to get and have before/after OBD data numbers for the O2 sensor voltages, and the MAP sensor pressure readings.
Takes planning and extra time to get those, obviously. Of course, if the customer sees better economy, that's good overall.

Using a combination of mods like this is good practice. BTW, was the exhaust wrap you used expensive?

Outstanding work, Michael!

Tracy G

Tracy ofcourse! And thanks so much for the encouragement and positivity. It feels good to do clean work for customer's engines!
My torque pro app bluetooth connects to my obd reader (kiwi 3) and has about too many available readouts to count! It tells you sooooo much that your dash doesn't show! I'll find the map sensor pressure guage for the future. I may try the pipe insulation soon, but i went with exhaust wrap this time. $13 for 50 feet. Comes with stainless ties. I've attached pictures below. Got it from Amazon. It holds well. You first wet it, then apply to pipe. When the exhaust heats up, it dries hard in place like a cast.

Thanks for checking in Claudio.
First, Dave's Silverado has a major leak somewhere, as he says his mileage has dropped 100 miles per tank. Also, a few small vaccum leaks I'm sure of. Like in the fuel pressure regulator hose coming directly off the intake manifold, but he is fixing that. Unfortunately, this intake manifold is notorious for being weak in design, and likely to have areas along the gasket where leaks are present yet undetected. His post-cat 02 sensors are original, so I'll be checking those readouts from my app, and also from his map sensor this Sunday.

Michael, could you get temp readings on this Chevy's exhaust w/ an infrared thermometer? It would be useful to know how much the temp difference is with that wrap. Really simple, point at the wrap get the reading, then on the unwrapped pipe next to the wrap. in several places. Just before/after the cat in the video is a good place for this. Even better would be in a video- you can do this, Brother! This info will help us all, and aid ongoing work for Ron too! Thanks again!

Tracy G

I'd love to! I assume ill see atleast 100*F more or higher on the wrap. Yes VIDEOS! I can't guarantee it will be on Davids truck, but i think our ram van 5.9L V8 would work as an example. They have the same exhaust layout. Now I've wrapped a portion of the exhaust pre-cat, ill see if i can get a reading on that soon, then ill finish wrapping and get another temp.

Yes, Michael. idea is to get readings before and after the wrap install. To see how temp changes, at wrap locations, at the cat, and esp in areas of O2's. Ideally would be good to see if O2 voltage readings change as well, since that's the main idea.

Tracy G

Thanks Tracy G!
That's just what ill do

Hey Michael, do you have any updates for this Chevy?

Thanks for checking up on the results! Keep doing that and YOU WILL LEARN ALOT!
Claudio you da man!
As for the Chevy, the original PLASTIC intake manifold from 2000 turned out to be full of flaws and leaked so bad, it took 5 mpgs off what it used to be. So the last email i recieved from him stated he ordered a new manifold and gasket, and would have it replaced soon, but he's busy and traveling around the states for work, so he has been slow to update me. You'll know when i do brother! If it responds like other Chevy 5.3 Vortecs, he'll recieve atleast 30% better mpgs once the vaccum is properly restored. While he waits for that, he is still enjoying the BIG POWER GAINS that he says lifts the front end up and goes like a jet plane, and ofcourse clean exhaust. My favorite! Keep up the good work Claudio.

I'm trying to keep with you bro! I am hoping that i will have some good results and posts soon. You keep on and you are doing all of us in gadgetman land a big favor with the good content. Much appreciated!