OVTune 3.5L Tacoma Supercharger and Twin Turbo Systems

Start reading from page 1 and come back when you hit page 200. Ovtune already took the engine apart before deciding if they can boost it.

 

I need some twin turbo goodness

 

But it exists already at Lexus factory manufactoring and they are putting them in Lexus sedan cars. Just because it's a twin doesn't means you need to run lots of boost.

Heres the link.

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

 

I’m interested as to how SC is different to Turbo(s) to an engine “not designed for boost”, Specifically how 6psi from a SC is different from 6psi from a Turbo?

 

GOT EM’

 

It isn't. 6psi is 6psi. A supercharged engine doesn't really feel "boosted". It just feels like a larger displacement engine. A turbocharged engine tends to feel a surge of power when it comes on boost. Ultimately, twin turbos will definetly provide more total power than a supercharger. But in a truck (towing, off road, low traction situations, etc.) application, I'd prefer the supercharger. Then again, if I had a 2wd street truck, I'd be all about the turbos. Imagine a twin turbo 2wd Tacoma in SR work truck trim. It would be a hell of a sleeper.

 

Would be what a xRunner wishes it was lol.

 

Agreed. I have been tossing around the idea of buying a 2016/17 2wd 3rd gen and doing just this. I'm going to wait and see what happens with the twins first, but if all goes well..

 

Sorry but that’s not accurate at all. Turbo Diesels for the last ~40 years are all about low end torque. Turbo is simply about the size and where you want full boost, most gas turbos these days are more inline with old diesel turbo design, ie spool up fast and at low rpm, than the old “kick you in the back after 30sec of lag” turbos of the 80s. you don’t really have that kinda tuning / sizing options with SC.

I respect personal preference, and there is nothing wrong with preferring SC over Turbo, but at least base it on accurate information if your going to post about the “why” on a forum.

But that wasn’t the question I asked to hopper89 anway.

 

I could be wrong, but I think you may be misinterpreting what @msapers was trying to convey. I'm assuming he meant 6psi is 6psi in the sense that the engine isnt going to look at it any differently in terms of reliability. With that said, 6psi and holding from 1800rpm all the way through redline is way different in terms of delivered power than 1psi at 1800rpm and 6psi at redline.

 

Yup, my guess is that at any fixed rpm and psi, the engine doesn’t care how it’s generated (though the SC is a bit parasitic). But the psi vs rpm curve will impact feel and overall performance.

Interestingly, it seems that electric superchargers are now the thing. Land Rover is putting 48V superchargers in their engines to help with low end power and overall performance. No real gain in mpg since they had to add a battery pack at the cost of a few hundred pounds.

 

Psi as a number by itself is irrelevant.
Cubic feet per minute of air is what generates power.

 

We have 3.5 Eco Boost F150's at work. Lots of power and great fun unloaded, but put a heavy trailer behind them in the rain and they are pigs...right up until the boost kicks in and the tires start spinning. Back off to let the tires grip and it's a pig again. The same trailer in the same conditions behind our older F150 with a 5.4 V8 is no problem. I've been pulling trailers and training others to do so behind everything from passenger cars to semis for 30 years. That's the only tow vehicle I've ever had that problem with.

To each their own. I have a friend who is into Mini Coopers. I have driven both his supercharged 2003 and his turbocharged 2008. The turbo car was way faster, the supercharged car was much more linear. It's not about which one is "best", it's about which one best suits a particular person for a particular application.

 

That's very untrue, later on I'll put in a link to some videos from Australia, they put a SC on one miata then Turboed the other, under same boost turbo made more HP and after 2nd gear was faster in all areas.

 

Again, I wasn't talking about power output. The question was: "I’m interested as to how SC is different to Turbo(s) to an engine “not designed for boost”, Specifically how 6psi from a SC is different from 6psi from a Turbo?" My answer was that as far as engine internals are concerned, 6psi is 6psi. Neither system at a given amount of boost will be harder on engine internals than the other. I apologize if I wasn't clear.

 

Question is, how HEAVY is the trailer?

 

Must've not noticed that part, but in that regard 6 is 6 yes. But the deliverd should be worlds apart

 

That's not what I was talking about at all. 5-6 is probably fine but 10+ would be different. Ford trucks get away with it because the engine was designed around it. The tacoma wasn't.

I had a supercharged tacoma years ago and loved it, that's why I say I'd prefer that to an aftermarket turbo.

Either option if something goes wrong you'd be screwed on warranty so you have to think about that as well.

 

But another one of Magnusson’s selling points is they offer a power train warranty with their superchargers