Magnuson Supercharger Mega Thread for 16+ Tacoma - Unboxing, Install DIY, Dyno Video

Tell me more please.

 

When tunes from people like myself and you come out and available to everyone, the community will benefit without a doubt.

 

And it'll help also encourage people to supercharge their trucks knowing that alternative tuning solutions are available to them

 

At first I was holding out for a SC kit. Then it hit and I was holding out for reviews. Then they hit and I was holding out for aftermarket tunes for the aftermarket SC. When they hit, I won’t have any excuses to hold out any longer.

 

Here here *raised glass*. Man it will finally feel like some darned freedom with this 6k engine weight.

Has anyone that has said they’re ordering a smaller pulley installed it? If so what size and what’re you seeing/have you logged anything?

 

Haven't seen anything like that yet

 

I ordered the supercharger and 87 mm pulley two weeks ago and mentioned it in this thread. Will be getting baseline Dyno’s done on OV tune 2.0, URD Y pipe installed on the dyno, Magnuson tune stock pulley, and Magnuson tune smaller pulley. My guess based on feedback is that the Magnuson tune is very conservative to maximize longevity. If that’s the case, it should be able to handle the 87mm pulley right off the bat. Won’t know until someone tries, (tried OEM tunes with one step smaller pulleys on both the magnuson supercharger for the 5VZ with 7th injector and the 1GR, and had zero issues). From what I understand no one has grenaded or window’d a 2GR with the magnuson supercharger to date. Says a lot. Not saying I want to be the first but it’s probably not gonna happen running a meager 1-2 psi more than the stock 90 mm pulley.

I hope to run yotawerks @mZiggy and @tonered FI tune to dial everything in when it’s ready to go.

 

For the record, I do want to have the tune for the 90mm pulley sorted before going to smaller pulley options.

 

Of course! As the client I would want that dialed in before adding more boost. The two reasons I’m going to try the magnuson on the smaller pulley is because first it’s known to be conservative and second, the limits of stock fuel seems to be right around 400 hp. Needless to say, I will be watching AFR’s and EGT’s like a hawk on the dyno.

 

Based on what I've seen from Mat/OV's TT R&D and having owned the base TT kit myself, I believe the stock fuel system limits are reached well before 400whp. 400hp at the crank could be another story.

My own base TT kit was dyno'd during Mat's R&D on his dev truck at around 310-330whp and 350-360wtq, measured at the hubs to eliminate factors like tires, at 6-7psi.

That base TT kit is as close as you would get to a *relatively* even comparison between kits if pitted against the Magnuson supercharger.

When targeting 9-10psi with my setup, it was very strong. No doubt. But I was aware that I was pushing the limits of the stock fuel system. Even reaching up into 11-12psi when I was overboosting and dealing with those issues, I was immediately running too lean.

While targeting 9-10psi, I had certain spots in my rpm band where I could feel dips in power, no doubt instances where the ECU would need to reduce advance.

When I elected to reduce my targeted boost to 7psi, I immediately felt regained power, smoother acceleration under WOT. Which makes sense, since I was no longer pushing the stock fueling limitations as harshly.

As we (YW) develop and dial in our tune for supercharged applications for the 3GT, our priority will be addressing the two major points that most people have wanted looked at: power and shift logic.

Like with our N/A tunes for the 3GT and the 5T4R and the other vehicles we're working on in the background, our priority is not to provide tunes that sacrifice reliability and safety in that pursuit for power. The goal here is to have something available for everyone to be able to safely and confidently drive on as our baseline, while still meeting the goals for areas for improvement as requested: specifically available power and shift logic where the Magnuson supercharger is concerned.

So, what does that mean for boost pressures? There may be a point where it is apparent that with untouched stock fueling, more power will be available with the 90mm pulley than with the 87mm pulley for instance. It might not. The extra couple pounds from the smaller pulley may work out beautifully and yield excellent power. We'll address that when the time comes, but if it's the case that it doesn't, that would be when it would be appropriate for people seeking additional power to consider aftermarket fueling options. Because running a couple extra pounds of boost may not simply be worth it if you're sacrificing power for the sake of telling everyone that your setup targets an additional 1-2psi more than them.

To date, the best option for aftermarket fueling options looks like it'll be Mat/OV's fuel pump/fuel pump controller upgrade. This is not available for purchase at this time due to materials/supply shortages, and Mat needs them for his own twin turbo kit orders as well, since a lot of people ordered the powermax turbo upgrade with those aftermarket controllers to push boost in the 12-15psi range.

I have heard of some Procharger kit owners who are at higher elevations having a JMS fuel pump voltage booster installed with their kit. However when I asked Mat about that as a possible option for people like myself who were on base turbos but pushing the limits of the stock fuel system due to mods, I was told that if those people were to go down to sea level, that voltage booster would likely burn itself out due to working against itself and they'd run out of fuel. Just something to keep in mind.

 

Have you gotten a smaller belt to compensate for the smaller pulley? The standard pulley size on the 1gr is 3 inches for the Maggie. The owners who have gone to a pulley size less than 2.7 have had to get a smaller belt. If you did get a smaller belt then where did you source it? Thanks

 

Very well said. I appreciate the experience and the thoughtful response. Sounds like the stock fuel limit is 400 crank. Smaller pulley might be able to eek out 10-15whp tops. Will be interesting to see for sure.

 

Nah never needed a smaller belt in the past for the 5VZ or 1GR. The tensioner does fine keeping the belt in check with the one size down smaller pulleys. I assume it’s the same with this application. Obviously there’s not much out there so let’s see what happens.

 

I know that observations and experiences with the twin turbo kit don't just transfer perfectly/1:1 over to the supercharger, but nonetheless I had the good fortune to learn a lot from having the turbos and there's plenty there that will help when looking at the SC side.

 

It absolutely applies and the experience is appreciated. Certainly when talking about more boost and smaller pulleys! I think it’s important to keep in mind one step smaller is nothing crazy. I don’t have any plans to push more than one size smaller. I learned my lesson on 5VZ. Anything more than one step down starts to have a significant impact on longevity. Even if the fueling and the block can handle it. The knock sensor pig tails for example… nope! Can’t handle the heat generated from the supercharger being overspun.

 

Nice job looks great

 

The supplied belt is a 6pk2265. There are plenty of shorter belts that will work great, should the need arise. 6PK2260, 2255, 2240, and on and on.

 

https://www.youtube.com/watch?v=NWYF0jZPas0

I'm aiming for something between aahhhhhhhhhh and AHHHHHHHHHHHHHHHHYA

 

Personally I don’t want a smaller pulley, but I would be stoked if the rev limit would be pushed upward 500rpm or so.

that would effectively increase boost a bit at the top end of gears and probably gain more performance in the quarter mile/ 0-60 than a slightly smaller pulley would.