Performance Tuner

Looking to try and increase power and fuel mileage, any recommendations on tuners, Thanks

 

None exist.

Programming is locked and the only way you can change tuning is by running a full stand-alone.

If you want increased mileage, maybe lightening the load (including lighter wheels/tires), as well as proper tire pressure and up to date maintenance including but not limited to; air filter, spark plugs gapped correctly, fuel filter, and anything else that comes to mind.

If you want power, say bye to mileage, and get yourself a supercharger.

Otherwise, enjoy what you've got.

 

Correct.

Tuners are a waste of money and even if they did anything it's going to be at the expense of fuel mileage. Engineers with millions of dollars of R&D behind them have tuned these cars for the best mileage and power possible. Tuners, if they do anything at all, do it at the expense of mileage and usually make the engine run out of spec for the ECU and bad things happen down the road.

That goes for Cold Air Intakes and specialty filters. They just screw with the normal running of the engine. If TOYOTA engineers thought those would work, they would have done it.

That being said, one thing not mentioned is a throttle body cleaning, that can help a good deal. I replaced the entire TB on my car and it came with a brand new TPS and IAC and mileage improved significantly. Vacuum leaks too can help cause bad mileage. You should look at all the hoses on the top of the engine. If any are cracked or rock hard, replace them.

 

Well…….there is this.
https://kdmaxtuning.com/

 

wrong vehicle.

 

Did you skip the part about the vehicle's computer being locked with no way around it other than a full stand-alone?

 

I’ve got tunes ready to roll for 2015-2018 4Runners. Working to get more added as support becomesavailable for more ECU ID’s. Any of the KDMax tuners can flash the same tunes depending on whereyou are located. I’m in Utah but we have tuners all over.

https://kdmaxtuning.com/

 

You're in the 3rd Gen Section.

You seem to be more concerned about getting yourself out there and pushing your product and/or service, but you're not exactly being a forum contributor in helping the OP.

Don't mean to come off as a dick, if I am, but we are here to help others.

And if you are indeed offering products and/or services, why not read the forum terms and agreement and make yourself a vendor while you're at it? I don't see you listed as a vendor here.

 

Thanks for the heads up, it is not my product, I copied and pasted from a post here. Just wanted to show that it may be possible for something, i will stand down now.

 

In my younger days we would do our best to cleanup the intake manifold by grinding down the rough interior surfaces and eliminating the steps/gaps in the flow path. Basically making the flow path nice and smooth was the key. Depending on the manifold you can also enlarge the ports but that gets quite tricky. It was a laborious work but it worked in getting more power and to some degree better fuel economy from the engine. Others have mentioned adding superchargers. This adds more power but fuel economy will go south. Every now and then someone comes up with a gadget that promises more power and better fuel economy. I am yet to come across one that actually works.

 

I may well be way wrong on this thought, but...
I thought they left the intake stuff rough like it is because you'd get smoother air flow out of them. Same theory as with a golf ball's dimples. Keeps the air flowing over air, not the metal, so you get the smoothest possible flow.
I've heard a lot about "porting-polishing" intakes for more power, too.

I don't have the foggiest which theory works the best. I'm sure someone has done a study or three about it...

Have fun. all!
Pat☺

 

Your comment regarding dimpled gulf ball is correct but the reason is a bit more complicated. With air moving parallel to a flat surface, you have what is called a boundary layer. On one side (surface) air velocity is zero and the other side you have the so called the edge of the boundary. There are two kinds of boundary layers: Laminar & Turbulent. One always start with a laminar boundary layer and at some point the boundary layer transitions and becomes turbulent. The transition point is a function of many parameters but surface roughness is one of them. Surface friction with a laminar boundary layer is always less than a turbulent so with everything being equal, you want to delay transition and keep the boundary layer laminar. It also turns out that from an energy stand point turbulent boundary layers are more energetic that laminar boundary layers. Note that up to this point I have talked about a flat surface. Once you introduce curvature to the surface and depending on the curvature, you increase the propensity of the boundary layer to separate which means increased losses. In the golf ball they learned that with a smooth surface the boundary layer did not transition from laminar to turbulent soon enough and once the conditions were right, air flow separated resulting in a large drag. With surface roughness added, transition to turbulent occurs early and since the turbulent boundary layer is more energetic, air flow goes further along the surface before separation occurs.

 

Haha, Nothing like a little fluid mechanics to glaze everyone over!