TRD/ Magnuson 4.0 Supercharger Tips, Tricks, and Mods

Great idea.

I'm fine with my tires, I was just genuinely surprised I broke them loose! No weight in the back at the time except my spare.

 

Hold down the nanny off button and it's hard not to spin tires in every turn.

 

Turns are no problem with traction control turned off. It's just the straight acceleration. I also have +400lbs constant in the rear from the upgraded leaf springs, aluminum camper, fridge, bedrug, maxtrax, toolbox, etc.

 

I'm still not thrilled with the shroud setup either. I feel that it's weak and one bolt holding onto the entire inside of the actual fan assembly for each of the three 3D printed supports is piss poor.

 

Regarding your question about tapping into the O2 sensor...The O2s on our trucks are just narrow band so AFR gauge will def give you more resolution than a stock O2. For me personally, I've been using my Ultragauge to monitor my fuel trims and MAF flow. It def helps in a pinch and averts me from nuking my setup. It also gives me error codes when something just isnt right. I have an AEM AFR gauge powered up, however I don't have the sensor live yet as I'm needing to install my custom Y-pipe from Subzero Fabrications (shout out to @906taco) Highly recommend you check'em out when you're ready to start doing some exhaust mods to let that baddie breathe!

 

The primary O2's are actually wide ratio sensors. The ECU limits its reporting to 11.97:1; however, it can read much lower.

 

Can HPtuners change what the stock ecu will report AFR? As in a wider range.

 

Unfortunately no. There is a patch in the works that would allow the full wideband range of the sensor to log. That patch, however, is not complete.

 

I can chirp.. my gears...

 

Same.. on my 2nd 4.56 3rd member.

Boost + valve body + upgrades + 35s.. can definitely chirp going into 2nd, no problem.. but does not like hard abuse while wheeling..

#1 Ring gear bolt backed out..

#2 Broken ring gear tooth..

 

I 3rd…… that. Went through a few as well.

 

The nanny button you say... that the ahhh anti slip control thing?

 

Maybe this is a dumb question but - why not have the bottom of the fan shroud able to clear the fan, so you dont have to pull both at the same time. It's such a pain in the ass. I genuinely thought about chopping a portion of the bottom off, I didn't because I don't really know how badly that will affect cooling performance. I assume to some degree. There's always going to be a few royal PITA parts to deal with on any engine layout but that one drove me a little bananas while installing the charger.

 

What do you mean pull both at the same time? Are you talking about pulling the fan so you can mess with the tensioner assembly for belt swaps?

 

When you remove the fan you have to physically remove it at the same time as the shroud making the whole job very awkward. I'm thinking a 2 piece shroud that has a slot the top drops into, or just chopping the bottom off so you can remove the shroud entirely, then have adequate room to get at the fan. Or just see the front of the motor for diagnosing things. I know I'm getting into the weeds away from the supercharger here, I was thinking of writing up a little first timer install advice post. But yeah there would be access to deal with belts nicely that way too. Just thinking out loud on how to make things easier to deal with in there.

 

Oh yeah I can't stand how the shroud and the fan are designed so that they need to come out together. All of that shroud and all that stupid giant, heavy fan just so the guys with these trucks can't even get a properly functioning AC when it's above 88 degrees fahrenheit out. it's like a spit in the face to us from Toyota.

 

I dont even mind the lift so much as the access to the 4 nuts to get the fan off. A 2 piece shroud that has a slot to register the pieces together would be perfect. It's just plastic honestly. I know this seems like a silly nitpick but to unclip the top half and pull it would be so nice for maintenance and just visibility. Anyhow... I'm off to pick up an add a fuse I can stick under the dash and get my boost gauge lit up.

 

The traction control button. 3sec hold and you'll have Trac off and traction control off.

 

only up to 15 or 30 mph I think it is.

ABS/Grey wire killswitch mod completely turns it off.

 

Well, I'm feeling slightly more confident now....