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The complete system in detail- intake, exhaust, orientation, fabrication details.

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Here's some info on the math we've developed so far shown on a Garrett G40-900 compressor map. Let's take a look at how to read this information. First, refer to the "blue ovals" on the map. I've used ovals to represent that while the math is sound, actual placement on the compressor map will...

WTF does my transmission have to do with selecting a turbo??? That my friends is an excellent question and I'll address it. You've probably all heard of the importance of "area under the curve" as it relates to horsepower. In other words, looking at a dyno map, one would look to maximize the...

Turbo lag. Especially on a 4700+ lb vehicle is to be avoided at all costs. This is especially true from a marketing perspective- after all if you're doing engine downsizing, that last thing you want is your customers not to feel an immediate "kick in the pants" off idle. Especially since the...

WTF! Two turbos are always better than one...Right??? Quick answer....no. Not so quick answer, it depends on the application. It's pretty easy to see if your mass airflow requirements were larger than a single turbo could support, then yes. But primarily, what people think is that two...

I've been meaning to put this thread together for some time, the only thing stopping me is the limitations of the site's software- to wit, a person wanting to put together a concise, logical thread of events has to contend with comments, questions, cross-talk and chatter if the subject matter...

He can't grow up, he's a 17 year old living in the basement whose relative is a fireman (maybe). He's a wannabe looking at a relative's ST and playing make believe. There is not a post he makes that makes me think that this is a mature person with a responsible job that entails taking care of...

google for tsbs for explorer. There are several sites that have lists of them.

https://static.nhtsa.gov/odi/tsbs/2020/MC-10180336-0001.pdf

Chill- I just asked the question for clarification. As far as "That's not what he said", it's exactly what he posted. But as it seems you're clairvoyant as to other's posts, just fill us in on all the facts!

I want to make sure I understand this: You went 23,000 miles before your first oil change. Then you went another 9,500 miles without a change and then the engine failed with no oil in it?

The ST definitely uses a PID algorithm for wastegate control, and it's not moderated to a specific boost pressure- it's far more complicated than that taking into account octane learning, ethanol content, etc. Because it's using a speed-density system, based on ambient conditions (temperature...

If you're not looking to change the tone of the exhaust, your best bet is to keep the stock exhaust. It's not costing you any horsepower at the limits of the stock turbos.

That's probably the nicest comment I've ever heard in 25 years of being on car forums. Thanks for that! Seriously though, I've forgotten some things, thankfully. Like carburetors, point operated ignitions, horsepower is unimportant cuz torque wins races, headers work because of Venturi...

You're right, should have said "later" 3.5s.

The 3.5s also have port injection which helps to keep the valves clean. A catch-can is not a bad idea, it helps trap oil that would otherwise make it into the intake. However, the DI engines such as the ST with variable valve timing can time injection events when running a "Miller Cycle" like...

Sorry @Blown F-150- Looks like you have been added to the "ignore" list as well!

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