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

You might not get much benefit from it. Take this with a grain of salt but after I installed my SC, I had it dyno'ed to get the actual power numbers from my truck. On the last pull, for the heck of it, I cut out the carbon filter and disconnected the air box lid so the air was coming straight into the air tube and it didn't change the HP numbers at all. Possibly the air tube is the restriction but it definitely isn't the airbox.

My next focus, after YotaWerx releases the 87mm tune, is to see if changing the dump tubes and Y pipe will have an affect. I am thinking of trying the high flow secondary cats. Though I am a bit hesitant to install the high flow primary cats since I have read that people were having issues with CEL.

 

Appreciate your input! I don't need another piece of window dressing that makes it look pretty but doesn't have any real gains! lol

 

The throttle body is probably the first restriction on the intake side that needs to be dealt with.

https://www.tacomaworld.com/threads/throttle-body-70mm-to-76mm-thoughts.715891/

 

During recent testing, we're still seeing a lot of leaning out on the 87mm pulley tune with the additional air, so somewhat soon a decision may need to be made to withhold release of the 87mm pulley tune for applications without supplemental fueling mods.

The frustrating bit is that we'll run a test tune at WOT however many times for one or two days/nights and all will look fine, and then make some revisions, and then later on revisit those other tunes and all of a sudden they're quite lean.

Given how far we pushed the tune on the 90mm pulley, I am not entirely surprised that we seem to be hitting a fuel wall.

This is likely also why Magnuson does not provide a 87mm pulley tune, and from what I understand, nor do they officially recommend running the 87mm pulley.

Still working on this, but we'll have to see where we end up.

The plan is still to work with @JamesT and tester(s) on dialing in an aftermarket fuel rail system to try to better address the fueling. If successful, it would benefit the 90mm pulley tune application as well.

I still have my Doug Thorley catless y-pipe with resonators available for sale, been in my garage since August and no one's bought it. Ran it on my twin turbo Tacoma.

When I had my TT Tacoma, I had the high flow catted dump tubes included in the kit and had issues with CEL. Eventually I turned them off in the tune because I was annoyed that I couldn't use cruise control, but I did also later find success with Fabspeed Motorsport O2 sensor spacers with mini-cats. This may be a nice solution for individuals with stricter emissions controls/inspections.

Other than that, I spent a lot of time trying to correct (and I eventually did) exhaust leaks where my dump tubes and y-pipe met up. I eventually did away with Toyota's donut gaskets (including fresh ones I'd tried) and found success with Remflex gaskets at that DT-YP connection.

 

@mZiggy

Thank you for the response. Originally I was holding off on the tune to save $50 but now I am thinking I might as well just buy the 90mm tune. Maybe upgrade to the 87mm at some later date.

Thanks for the heads up on the y-pipe.

 

Just some clarification on this, there was never any savings of $50 available by purchasing *only* the 87mm tune and not the 90mm tune. If that's what you mean? The 90mm tune is included in every purchase, for everyone, because it's the default pulley size for the Magnuson supercharger.

So if there's anyone out there who's been hanging out in the woodline, intending to only purchase the 87mm pulley tune and not the 90mm tune and save some money that way, just a heads up that that is not an available option. The 87mm tune for stock fueling, if released, is/was only ever intended as an additional add-on purchase, not a completely separate option in place of the 90

 

I believe I just put myself on a list for a new fuel rail system on here. This statement goes to show you that I have ADHD and can't remember what the heck I've been spending money on! lol

This is also something I've been wondering about. If I simply slam on the gas pedal, I get up up fast and then the engine goes into limp mode or something where the RPMs drop back to almost idle. I have no idea, but this seems to be my own internal gremlin.

 

Regarding leaning with the 87mm pulley tune, our higher elevation testers don't need to worry about the tunes they've been testing/running. Their elevation with less air available helps them maintain safe AFRs at high load

 

@mZiggy

Oh that was my misunderstanding. I was under the impression it was $700 for the 90mm tune and when the 87mm was released one would have to pay another $50 to get that one.

 

@JamesT is coordinating the production and shipping to testers for the fuel rails, so you'll have to been in contact with him at some point if you are getting a fuel rail system.

Sounds like you're hitting the fuel cut limiter. When you do so, the ECU cuts throttle until your rpm's fall a predetermined amount and then restores control to the driver after that point. I'm assuming this is what's happening for you? The rpm's fall and then it restores control?


I'd reduced max speed for the upshifts for the ATs so that this would be avoided, the math checked out based on the rpm limit set, but I can take another look at this if needed. Note, if you're in gearlock on a GL file, it'll definitely let you bang it off the limiter, that's intentional since it's how gearlock functions. Same for regular S-mode

 

Yes that's correct. So correct me if I'm wrong, but I interpreted your statement to mean that you were under the impression that you could save $50 and pay for only the 87mm pulley tune for $700, without the 90mm tune.

 

Yes, I'm on the list with james!
And yes, I believe that's exactly what's happening with the fuel limiter. I'm on stryker (no gear lock), but I just updated it this weekend. I'll let it learn for a while and see how that works out!

 

If you were running the test tune from way back when all this time and banging off the limiter, that makes sense actually.

Another tester had brought the issue to my attention and I worked with him to ensure that the adjusted max speeds set prevented hitting the limiter. This adjustment was included in the released version of the tune.

Please keep me updated and let me know if it still occurs on the published version of the tune.

 

Will do! I had stryker+ GL for the past month and just this past Friday updated it to the regular stryker GL. I'll continue to run for a while and let the computer learn. If I have any issues I'll contact you. PS. Just spent $95 in gas and felt like I should treat myself to a donut too! why not! At least it's not $200 like some of those big gas guzzlers.

 

Filling my Tundra from a quarter tank with premium usually runs me $130-150 lol

 

Correct.

 

Right. That is not an available option.

the 90mm pulley is the default for magnuson's kit, and so it is the default for the YotaWerx tune; any purchase of the Stryker tune pack automatically is for the 90mm pulley; the additional $50 cost for the 87mm pulley is just that: additional.

We won't be selling the 87mm pulley tune solely on its own, without the 90mm pulley tune. The 90mm pulley tune is the required minimum purchase due to it being the required minimum for the supercharger kit.

 

Curious to know more details about this. I'm in California but will be moving to Colorado in a few months. It looks like at this point the 87mm pulley tune release is TBD for vehicles without supplemental fueling mods. It sounds like if you're at high elevation, the 87mm pulley tune wouldn't be a concern without fueling mods but that tune wouldn't get released and limited to people depending on their location, correct?

 

Yeah it's one of those things where from a liability perspective, it's potentially a can of worms not worth opening even with the possibility of an additional waiver demonstrating an understanding of the situation.

Remains to be seen, nothing's finalized yet, still working on the tune, but figured you guys deserved an update.

EDIT: It's also entirely possible that the additional controls coming for the Tacoma with EROM 1.2 from VFTuner will help.

 

I am sure most or all of those here in Colorado will not agree with me - I have the stock 90mm and see no reason to run the 87mm. The power produced as-is exceeds my needs for towing and day-to-day driving. I'm not saying the 87mm would not and does not out preform the 90mm - I just find the current setup is perfection for my simple needs. I'd recommend you stick with the 90mm when you get here and make your decision after giving it some time.