[boostkingMatt]

Sounds good. Do you check the vacuum on the highway and what it takes to into + PSI?
Mine on flat highway is -2 psi@55 MPH and 2000 RPM, 5th gear Throtle angle around 10% by 20% it is into + PSI. Seem you are in vacuum till a bit larger throtle angle. KM

I’m not exactly sure, but at about 60mph with 17% throttle I’m about -2 psi

 

[boostkingMatt]

Ok guys I have some cool stuff for you to look at.
Here’s a WOT run locked in 3rd gear from 3000rpm to redline. I was a little scared cuz I ended up at almost 100 mph, but I needed to do it.

This chart is showing a lot of stuff but at the moment the orange is airflow

Here’s another graph showing Wastegate Percentage. You can see where it’s flat at the bottom it’s fully closed, then as it gets closer to redline it starts to open some, backing boost off to 18 psi or so. I’m not exactly sure why it’s backed off up top.

Heres the most interesting info to me in this log. First time testing out the Manifold Gauge Pressure DMR instead of the Boost PID. The Boost PID is not accurate and is completely off. You can see I have numbered a couple things.

#1- Boost is at around 21 psi, rpm was around 3500
#2- Here boost has jumped up to 26 psi and it holds it for a ways as you can see.
#3- At this point boost has dropped down to 18 psi, and if you scroll back and look at my wastegate percentage screenshot you can see the wastegate opens up right here. It’s also at around 5600 rpm right here.
#4- This is the rpm’s so you can see it versus boost.

 

[butthead]

Not trying to be critical, it is easy to clean up the graph and display the desired info.

I may know only enough about this stuff to be dangerous but never tire of the info available!

Far as the vac you are pulling yes there is quite a difference as my OEM is into boost by 17% throttle. That can go a long way to the better MPGs you get with the big turbos. An aspect not even considered by most!

 

[boostkingMatt]

Not trying to be critical, it is easy to clean up the graph and display the desired info.
View attachment 177888 View attachment 177889

I may know only enough about this stuff to be dangerous but never tire of the info available!

Far as the vac you are pulling yes there is quite a difference as my OEM is into boost by 17% throttle. That can go a long way to the better MPGs you get with the big turbos. An aspect not even considered by most!

Oh dang I didn’t even know. Thanks a lot! Yep, I honestly didn’t even consider it myself till I actually started driving. Then I immediately noticed they spooled up much slower. My guess is the stage 3s would get worse mpg because the exducer is smaller to make them spool faster. The stage 4s would probably get even better mpg, and I may upgrade to those eventually anyway.

 

[Arkansas Eco]

I wouldn't be worried about the 3rd gear at 100 mph. My stock gen 1 3.5 3.55 6 speed holds 3rd all the way to speed limiter, about 107.

 

[boostkingMatt]

I wouldn't be worried about the 3rd gear at 100 mph. My stock gen 1 3.5 3.55 6 speed holds 3rd all the way to speed limiter, about 107.

No no, I’m saying the speed scared me, I was on a road with a speed limit a lot lower than 100 lol. But yeah I should be the same as you then cuz I have a 3.55 as well and 6 speed trans.

 

[boostkingMatt]

Not trying to be critical, it is easy to clean up the graph and display the desired info.
View attachment 177888 View attachment 177889

I may know only enough about this stuff to be dangerous but never tire of the info available!

Far as the vac you are pulling yes there is quite a difference as my OEM is into boost by 17% throttle. That can go a long way to the better MPGs you get with the big turbos. An aspect not even considered by most!

How much boost did you hit in that log? Your boost doesn’t drop off like my old turbos did.

 

[Arkansas Eco]

No no, I’m saying the speed scared me, I was on a road with a speed limit a lot lower than 100 lol. But yeah I should be the same as you then cuz I have a 3.55 as well and 6 speed trans.

100 in my big heavy brick doesn't scare me near as much as 100 in my lil chebbie coupe LOL

 

[Blown F-150]

If I remember correctly, the Manifold Gauge Pressure and the PSI readings come from different sensor in different parts of the system. Specifically, before and after the Throttle body. I'm not sure if that has an impact or not.

 

[bentruby]

My datalog from saturday. I let off at 103 in 6th with 15.22psi.

 

[boostkingMatt]

My datalog from saturday. I let off at 103 in 6th with 15.22psi.

View attachment 177894

That’s on your stock turbos right? I see you hit a max of 21 psi. Where was that in the rpm band?

 

[bentruby]

That’s on your stock turbos right? I see you hit a max of 21 psi. Where was that in the rpm band?

21.46psi at 4600rpm in 3rd gear at 52mph. Stock turbos, second revision of my e85 tune.

 

[boostkingMatt]

21.46psi at 4600rpm in 3rd gear at 52mph. Stock turbos, second revision of my e85 tune.

That sounds exactly about where my old turbos were at. Right now, at 4600 rpm I’m at 26 psi and at 6500 rpm I’m still at 18-19 psi

 

[boostkingMatt]

21.46psi at 4600rpm in 3rd gear at 52mph. Stock turbos, second revision of my e85 tune.

What’s your boost level at redline and above?

 

[boostkingMatt]

Haven’t done any pics of the truck for a bit…
Removed the intercooler shutters today. I think it’s wise to keep them on in the winter to help reduce condensation, but I do have the “weep hole”. On the way home my IATs were only 10 degrees warmer than ambient. I’ve been seeing them at 88-100 degrees in 60-70 degree ambient temps. And the reason, is because they shutters are closed a lot of the time.

 

[RyEcoBeast]

Trucks looking great, this build just keeps getting better. Keep it up!

 

[boostkingMatt]

Trucks looking great, this build just keeps getting better. Keep it up!

Thanks man! I appreciate the enthusiasm! I am far from finished!

Some things on the list for the future…

Possibly going up to the stage 4 turbos
OEM Raptor Headlights
Raptor steering wheel
Morimoto tail lights
Some 20” or 22” wheels with summer tires setup for the summer.

 

[bentruby]

What’s your boost level at redline and above?
[/QUOTE

What’s your boost level at redline and above?

I don't know.. I guess I could do a pull in 5th gear and see. The highest RPM I've logged is 5854 and that had 16.82PSI in boost.


How do you have your front plate mounted? I need to move mine. I like this, but not the price: 2015+ Ford F150/Raptor Front License Plate Relocation

 

[boostkingMatt]

I don't know.. I guess I could do a pull in 5th gear and see. The highest RPM I've logged is 5854 and that had 16.82PSI in boost.


How do you have your front plate mounted? I need to move mine. I like this, but not the price: 2015+ Ford F150/Raptor Front License Plate Relocation

Just start recording a datalog, go drive down the road at 30 mph or 40 and then just floor it.

I just screwed a couple short screws right into that plastic piece behind there. I was hesitant at first to make holes in it, but I decided to do it cuz I knew my plate is always gonna be there.

 

[butthead]

Could do a log on freeway on ramps use full manual mode on the transmission and shift manually. With my 2017 6 speed I do 0-80 for my logs, that peaks at 96 MPH and 6000 RPM in third.

This was done on my BCB 93 octane logged custom tune, the Highlander variable octane will make more boost thru a larger RPM range but does not make as much SOTP power, and by 0-80 times. KM