Slowest Magnuson Install Ever - Done!

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Over the past holidays my son, who has never expressed much interest in cars, modifications or hotrodding in general, decided he wanted to do a car project. Although I know the overall long term reliability would take a hit we decided on a supercharger install. You get to learn about pretty much everything doing one of these. It's probably the last big project he and I take on before he leaves for college next year so I decided the reliability vs. time with my kid was well worth the tradeoff.

After reading most all of the huge Tundra forum Supercharger thread I went with a Magnuson because it offers both a tune and upgraded injectors. I have some experience with fuel injection tuning from when I converted the 2FE stroker in my FJ-62 from the flapper door AFM to a programmable MAF. So a tune and injectors was a must for me. Also OTT supports the Magnuson which was an added bonus.

I wanted to make this a really positive experience, so we took our time (very busy with Junior year of high school, SATs, and a high AP workload). There was the required amount of cursing but overall we figured everything out. I'd give the kit an A- simply because I didn't like some of the hose routing and a few other component placements (added some additional hose and wiring wrap, etc.). However, overall it went very smoothly, with the biggest hassles being disconnecting and reconnecting all of the constant tension hose clamps and getting the fuel tank out.

So far it has started, run and been up to temp to bleed the cooling system. Idles great, revs smoothly to 3000rpm parked, cooling never went above half way despite the 95 degree heat and bleeding process. Unfortunately, I'm not going to be able to drive it for a couple of days. But after a few shake out drives I'm going to have a local performance shop do a basic A/F evaluation (hopefully beyond what OBD Fusion reports via A/F and short/long term trims). There isn't a dyno in town. I want a basic validation before driving it a few hours to do a more comprehensive evaluation.

I'll update as I get through the shake out process.
 
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Could be the start of a new father and son business😁
 
Snuck out and got a quick 15 min drive done. Took it super easy but even at low throttle you can tell it wants to pull. Might be able to get in a longer drive with a little more throttle later tonight.
 
Snuck out and got a quick 15 min drive done. Took it super easy but even at low throttle you can tell it wants to pull. Might be able to get in a longer drive with a little more throttle later tonight.
Your patience is impressive… I’d likely been cited for speeding already.
 
So far everything seems great. Very smooth, wants to pull. No leaks. Temp is stable at the middle of the dash gauge. Can't hear any detonation.

I've been monitoring short and long term fuel trim. Short term at idle barely moves from 0, just flicks slightly positive and negative. Hard to watch this one while driving, I'll get a passenger to watch it. For long term what are reasonable values? I'm currently seeing 10.9 bank 1 and 11.7 bank 2 after ~20 miles of light to medium throttle. Thoughts?
 
With a little more seat time I see my LTFT fluctuating between 7 and 11 (sometimes as low as 5 but just for brief periods). Idle and low throttle appear to push it closer to 10-11. KCLV is pretty steady at just over 18. I've also been watching all 10 of the Toyota specific PIDs for A/F Ratio Learn Values (both banks, idle/low/middle1/middle2/high load). These range from 5 to 10 which seem to align with LTFT (I don't know if these are actually correlated...).

These all seem fairly acceptable based on my reading so far. That said, I do wish that it didn't need to add fuel. I'd rather see it work rich to lean. I've reached out to an OTT vendor and will probably install their tune before I dyno.
 
Well, OTT asked for some data logs before they engage with any tuning. I saw some short but significant negative KFV during medium efforts (not WOT). Idle and cruise looked fine from a knock perspective. I'm going to wait on any additional testing until OTT to gets back to me with their analysis of the log.
 
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