Recent content by William@Davis

Also curious to know other sources for tuning an OBD I ECU if you say that Brian Harris is not competent?

Well I’ll keep all of that in mind but I’m still keeping a Duramax conversion on the table. So you’re suggesting that I swap to a newer model 454 Vortec ? I’m a little fuzzy on your suggestion for fuel injection. Isn’t the newer model 454 vortec motors multipoint injection? Also wouldn’t such...

I can understand that completely. I have no interest in purchasing a new truck in today’s economy. My commuter is a 2017 Colorado 2.8 diesel and in that year that truck cost me around 38 thousand, I cannot fathom what one would cost now although they discontinued the sales of the babymax here in...

Currently it’s still stock with a 7:1 compression and factory TBI which with the NV4500 and 4:10 gearing yields anywhere from 9-10 mpg. I did invest in a rebuilt port matched TBI/ INTAKE manifold combination but then started considering a diesel conversion idea instead. From HarrisTuning website...

Well said, of all your input it sounds like I’d be better off keeping the 7.4 and simply applying the finances I would have put into a swap into the fuel tank instead. It is worth pondering over especially since this is not nor will it ever be a daily driven vehicle. I’m going to ponder over...

Understood, I did look at the optimizer but cannot cannot in good conscious spend that kind of money on a project. Now if I got a used motor installed and everything works as intended then purchasing the optimizer for the longevity would make sense. In all honesty I'm still debating on which...

how would my budget have anything to do with the questions stated above?

Greetings all, I was referred to this page by the owner of 65turbogarage. I'm not a newbie to diesel engines as I've owned both Dodge Rams 24 valve cummins and currently own a 2017 Colorado 2.8 diesel and also I was formally an engine machinist prior to moving into CNC production machining...

I read that warning label on the outside of the transmission but was unable to find Castrol Syntorq. I called my Amsoil rep and he cross referenced fluid compatibilities and suggested their GL-4 as a substitute

Greetings, does anyone on here know if there is a difference between the 6.5 NV4500 and the 7.4 liter gas NV4500. Someone else on another forum mentioned that the bell housings are identical . Mark Hinkle suggested I ask in here as he isn’t sure if there might be a difference in input shaft...