Yep, as I'd presume...

Nice, can I ask why you went with URD instead of Magnuson?

For me in CA, I'd likely have to go with the CARB approved Maggie but am interested in your research and choice here. Thank you.

WFO9.....

Hey thanks for sharing your experience and "opinions".

I for one REALLY appreciate a non-sponsored "opinion".

I'm a big boy and can read the various threads and "opinions" and make up my OWN MIND. I'm really shocked that ANYONE here would advocate for "STFU if you aren't sponsored". Sponsored kinda equates to biased sometimes. Sounds like someone doesn't like to hear opinions they don't share....."Oh my ears!!!!"

So carry on trying to help for the sake of helping. If some twit can't make up their own mind and filter out the nonsense and decide stuff for them selves ....that's THEIR problem.

My eyes are still stinging from my visit to the Magnuson page.....

Quite proud of their little toy. I guess supply and demand are at work.

Any ideas if there are more competitors getting into the 5th gen SC market.

I know.....not likely.

https://www.urdusa.com/urd-whipple-s...er-v6-stage-1/

Whipple is a much better blower than the root-type in the Magnuson. If you aren't in California and don't need CARB approval, this is the kit I would be looking at. It comes with fuel management, injectors, and a more efficient twin screw supercharger.

I have to second this. Not from a bias, but a 1 of 1 comparison the choice should be easy. However, if some poor soul needs a CARB sticker, right now I believe the Magnuson is the only game in town.

No doubt the TS can make more power.. it's bigger... and more efficient for race applications... . I just question the piggyback and the overall reliability of a one off setup with a box in the middle. Plus for this application.. it seems a bit large. I hope the glitches are fixed and parts finally show up and they start becoming a thing people can see.


I also hope people don't think the mag setup is the same as the old TRD one for the FJ..The new TVS one is quite a bit better. Works pretty darn well. More power than I need. Still something a little quirky with first gear torque management... but I have no need to roast tires anyway. So far.. so good with no real issues to speak of. A good hot summer is needed to be 100% sure.. but so far seems well worth it to me.

Just to clarify, twin screws are more efficient... period. Not just for race applications or just for the drag strip. They are just more efficient. Across the board, they are the better designed supercharger. To say they are more efficient for race applications is cutting them short. They produce more boost per revolution, produce less heat per PSI of boost produced, and don't fall flat on their face in higher RPMs. All in all, they are the better blower.

I'm in California and plan to keep my 4Runner for a long while, hence I need a CARB approved supercharger. That's the only reason I chose the Magnuson over the whipple.

You misunderstood my comment. Yes, as I said a twin screw compressor is more efficient . Although the TVS is a big step forward over the old 60* rotor packs and the gap has narrowed quite a bit, there is still an inherit power advantage to a true compressor. Plus the URD unit is just bigger displacement with quite a bit more power potential (which the motor with stock internals could never handle). But at the same time, there is way more at play than just the compressor and power output potential (especially in this application).


If I'm buying a blower for a daily driver SUV trying to get a nice reliable bump in power..(~30-40%) I'm going to look at other things like overall complexity and how many units are out in the wild trouble free. Replacement parts availability, rebuild interval. How many OEM vehicles use the same basic unit.... If I'm buying a unit for racing... totally different mindset.

I love the idea that URD is releasing a Whipple TS kit. It's super cool and opens up interesting opportunities in the future for extreme builds . I just think it would be inaccurate to say it is better for most people. The idea of a piggyback is very spooky to me (it's either at the mercy of the factory quirks or in complete control and unable to use some of the refinements of the factory like knock managment...) . I like the idea of a bigger fuel pump and injectors, but I know from doing this on many vehicles that there are often big reliability problems as you move away from factory equipment. At the same time, I also question if the stock stuff can keep up. In summary, it is complicated and not black and white. Most of it depends on your use case.

As more time passes.. I think the picture will clear up. I try to stick with actual experience vs speculation, but I do tend to speculate myself as it is human nature and sort of fun.

If someone wants my honest first hand experience.. I'll be happy to give it. I hope the same will happen when someone actually installs the URD kit. There is still quite a few mysteries to solve about this engine and what it is capable of in a reliable fashion under varying conditions. I'm just glad we finally have some options to make it quite a bit more fun to drive.

i need to replace my rotors and pads... knowing that a SC will be installed at the end of summer, how would that influencing your brake buying?

@wfo9

I see you're from Tx, anywhere near Houston?

I was talking with a guy who added a Magnason SC to his Chevy SS (My brother has the same kit) and he originally used the canned tune from Magnason and had some kind of off site support that they got the car running with. Turns out his car made 9 extra HP after taking it to a tuner who knew how to tune. His car was running way too lean (He lives in CA and needs the CARB deal).

I mention this because originally he used factory support and found the tune was horrible for his car, after his tune he gained 150HP. If you have issues with the way they run, Id spend the $$ and have a tuner and a dyno tune done to make sure the factory canned tune isnt hurting your car.

Magnason makes a great product but for the Holden/Chevy guys its lacking in a good tune for what ever reason.

I hate when this thread comes back up. I have no self control. I can't look away and remind myself that I don't need it. I was a naysayer initially. But I was totally wrong about the output the new 4.0 could make with this S/C. It's a lot more compelling than I had ever thought it would be. Now I want one.

On the other hand, I'm still heavily conflicted about this upgrade. There's been a lot of reports of heat issues (read:overheating) from the 4Runner supercharger. And as a result Magnuson has de-tuned the supercharger to help with that.

For those of us who tow a lot, heat, trans temps, and more importantly the skyrocketing gas prices, are making this a really tough decision. It's tough because on an emotional, purely testosterone, level more power sounds great. But I'm also a realist who knows it'll never be a sports car level ride, and logically it's also the LAST thing I could really do to my 4Runner short of 4-linking the rear suspension.

That said, factoring in the time, cost, and downsides, it's just...it's just a really hard sell. Like maybe the URD Y-pipe and MAF recalibration might be enough just to kind of add a tiny bit more pep back in its step.

Also I finally got to drive a 4Runner with one of these, but it was mostly stock, and not nearly as built as my vehicle. It felt peppier for sure, but I think given what I'm spinning as far as wheels/tires, and armor, the benefits start getting tamped down.

Again, it's a very conflicting choice.

I did URD Y-pipe, Mk3 exhaust, aFe CAI, & MAF calibrator thinking it would be enough. It does make it peppier, quicker to rev and go, with better throttle response. However it didn't feel like it added power below ~2700rpm. The power was certainly better between 2700-4000rpm, though it really kicked in above 4000rpm.
All the power it added below 3500rpm seemed to evaporate when I was above 2000ft elevation in the mountains a few weeks back. Although below 3500rpm the truck didn't seem to bog down and lose speed as badly as it had in the past.
So in the end all that made an improvement for sure. There just not enough power where I wanted below 4000rpm so I ordered a SC. I really wish Toyota hadn't dropped the V8 from the 4Runner.

I have not heard any of these "reports" or de-tuning. Where are they coming from?

I have also not experienced any heat issues, but this will be my first summer with it.

I have definitely not had a chance to put it through any really hard work yet. Just driving on trails and hwy... but it is not 100*+ out YET.

There is no doubt there are some pros and cons to installing one of these... The canned tune now seems decent, but it is still not what it could be.. It ups the fun factor and general driving experience quite a bit, but at the same time..there is more complexity. I don't think I could ever go back to stock power now.. but I could have lived with it if I had left it alone.

Anyway, hopefully more people who have them will actually report here at some point. That is the only way problems get fixed if they exist.