HP Tuners for 2005-2015

Looks great!

You may look at working over the MAF curve at higher airflow. Just looking at the specific highlighted spot, your commanding .795 lambda and your O2's are pegged at .813 (and we know they're richer than that, but capped). Overlay your commanded lambda and observed lambda and see where they deviate. You can apply the percent error to bring observed in line with what you're commanding.

That's the simplified version. If you would like, I can assist in more detail.

 

Yeah we really cant see below .813 on the stock O2's can we..... BUT, there are times when we are below stoic, but above .813 where we can see the difference so i see what you are getting at. PM'd

 

What does the 4runner MAF do for a 4.0 v6?

 

It's a larger tube that will allow the MAF to read a higher mass of air versus the stock setup. Really only needed for folks who are on small pulleys with all the supporting modifications (fuel systems, full exhausts, etc).

 

Will a K&N cold air intake from a 05-11 fit my 2015? From what I can find the only difference is the SAIS mount/relocation. But since doing HPT I have removed my SAIS system on my “off-road use only” truck. Wink wink. So I assume I can use the early 2nd gen CAI.

The only reason I ask is because there is a really good deal on one locally, almost the same price as a replacement air filter itself.

 

Just know that the A/C lines are routed differently on 2012+ trucks to accommodate space for the SAI system. This may not affect the K&N intake, but it did affect the TRD Intake I tried to install. I had to mod it "a bit:

 

Ok, I think you’re right about the K&N that the AC line probably won’t be affected as it doesn’t have an air box like the TRD or AFE intakes.

 

Anyone have the math to datalog a speedhut vac/boost gauge? I got the one that goes from -30 vac to 15psi.

 

I'd see if you can find some data on that online (or if someone here has it that would be great). Maybe email Speedhut?

But you may build a little fixture (PVC) where you can bench test it and get your values.

 

I appreciate it buddy! I might end up going the bench test route. I figured I couldn't be the 1st to run one here though.
post 10 here - https://www.svtperformance.com/threads/equation-formula-for-boost-gauge-with-sct-livelink.1146766/
stated PSI = 11.179(voltage) - 20.288 but I tapped into the dam 5V reference wire by mistake instead of the actual signal wire. Too cold today to switch it over but after I do- I wanted to at least have the math readily available.

 

I’m not seeing any 0-5v output signal wires from any of the speedhut vac/press gauges. Are you attempting to tap into the signal wire from the sensor to the gauge ?

 

Thats what I was thinking

 

I dunno if that’s gonna work. Doesn’t sound right anyway.
Ya better email speedhut and tell them that you’re wanting to log with HPtuners prolink and see what they say.

 

I'm gonna be bumming if it don't work. Still I think it should be doable.

 

@JustDSM check your email

 

Gotta say to the team here.... @JustDSM knows a thing or two about a thing or two as he was right! Under OL drive conditions, and above the lower limit of .813 my desired vs actual were off....... unfortunately just as i thought i was good on maf tuning HAHAHA. But i gots a good grasp on it now and luckily we have a maf correction table that i can utilize for those weird situations (IE high rpm, low throttle openings where things dont follow higher load situations)

Make sure to get my v13 trans tune in there.... you will like it. (might also go back to stock torque management numbers for up and downshifts if those havnt changed back)

 

I’ll talk to him about it. Haven’t flashed the truck or done any logs since last August. Figured I’d do a few as I’m sure he’s been learning as he goes plus I’ve reworked my intake, bigger tires, no inner fenders and want to get rid of all the pesky emissions codes that keep popping up for me

 

I love the v13, by the way. Cruise control just keeps getting better and better. No more hunting for gears like a pissed off teenage girl that just caught her boyfriend in another taco.

 

Glad to hear you are liking it. Im really loveing the quicker in the pedal downshifts. Its like it shoulda come this way from the factory!

 

They just need to hurry up with the 4Runner release