OVTune 3.5L Tacoma Supercharger and Twin Turbo Systems

Question: Say you're running 5lbs of boost capped. Assuming you don't drive like a total asshole, how much impact would it have on the natural wear of the engine? I figured these trucks didn't come with turbos because: A. They're expensive B. They take life off of the motor making warranty claims (which equates to money).

Sorry, this horse may have been beat to death in the 300 page thread, but I am just curious.

 

Boost of 5#s doesn't kill an engine, poor tuning does. OV knows how to tune. Engine life won't be a problem with proper maintenance.

 

Ov has said and others agree tuning is crucial as well as regular maintenance for all components involved

 

He also said that this 3.5 "loves the boost". 5# is not the issue. Proper tuning and maintenance is. Mat has the tune covered, it's on you to do the maintenance.

 

Our barometric pressure is already about 14psi. In the scheme of things 5 more isn’t really that much. Especially on an engine that was clearly designed for boost, but for some reason was never fitted with turbos.

 

PSI is just a number... these turbos at 5psi are forcing far more air into the motor than the atmospheric pressure ever could, many times over.

 

Math?

I'm missing the supporting argument for that. I could just be ignorant on the process.

 

No math needed... 5psi out of a straw or 5psi out of a 6 foot culvert, which on flows more?
The point is that the "5psi" or "14psi" number is irrelevant without the other known factors. Atmospheric pressure and boost pressure are measured in totally different ways, and anyone that thinks that every vehicle is forced induction with 14psi of boost because of atmospheric pressure is off their rocker.

 

Okay, so there's a teachable moment here. I'm the student... stating my assumptions.

Current pressure on an open intake valve is 14PSI. Boost pressure on a FI intake valve would be 19PSI (5PSI boosted). The straw hasn't changed, so do we not assume that this is 35.7% increase in available fuel catalyst?

 

No. PSI is just a number. 5psi from a tiny ecoboost turbo, and 5psi from a D8 cat turbo are not the same. You cannot quantify the increase in available fuel catalyst simply by PSI.

@OVTune help please. I don't have the knowledge or vocabulary to explain this like you do.

 

I’m not sure what we are arguing about...

Obviously 5 psi at different volumes is different amounts of air.

 

Either way it’s more go faster..... faster

 

Essentially you are pressurizing the intake manifold to 5 psig which is 5 psi greater than atmospheric which is 0 psig. The only difference between 5 psi on our little V6 and a Powerstroke V8 is the volume of air that gets pressurized. At least that’s according to the quick research I’ve done

 

The golden rule of turbos: Boost itself is irrelevant...airflow is everything.

 

I thought manifold pressure was basically in a vacuum. Engine sucks more than the atmosphere can provide, NA. Turbo is actually pressurizing the intake.


ETA: not more than the atmosphere can provide, but u get the idea. Turbo is "overfilling" and cramiing more air in, as opposed to the Pistons having to suck the air in

 

On a NA engine, the intake manifold is in a vacuum but when you use forced induction you are pressurizing the intake so you can physically shove more air, more oxygen into the cylinders to make more power and torque

 

I’m seriously not going to sit there and argue about 5 psi LOL. Most guys got my point. And yes, I am off my rocker

The engine won’t wear faster with only 5lbs of boost. Most engines can handle that little boost with archaic old school ‘techniques’ rather than a tune. Having Mathew’s tune with 5psi is still as reliable as if Toyota had included a turbo option in the first place

 

Ok, I see where you’re going here. You’re suggesting that the cross sectional area of the turbo outlet is ‘far greater’ than the normal manifold input cross section, thus the straw and culvert comparison.

I’m following an argument that a ‘tiny turbo’ with a minuscule cross section won’t have a proportional impact no matter the boost pressure. Your argument holds water if the outlet of the turbo is much greater than the normal manifold intake. If the two are approximate, I’m not sold yet on the ‘far more’ conclusion.

 

These threads might help you better understand what max713 is saying.

https://www.rx7club.com/single-turbo-rx-7s-23/boost-pressure-vs-airflow-question-637225/
And
https://www.rx7club.com/3rd-gen-archives-73/why-bigger-turbos-make-more-hp-same-psi-645551/

They're an interesting read.

 

Does the store wide discount work for the Turbo kits?