[Boatwaco]

Busy weekend ahead of you?

Nah - probably just a busy lunch break for him!

 

[butthead]

If you want to dive down the rabbit hole on exhaust design look at some David Vizard stuff. I will take some patience but there are a lot of interesting nuggets to be uncovered. KM

 

[JimmyD750]

I fail to see the benefit of this exhaust system, sound-wise or power gains. I also have had ~50% positive results using CR turbos, but my builds are centered around longevity.

 

[boostkingMatt]

I fail to see the benefit of this exhaust system, sound-wise or power gains. I also have had ~50% positive results using CR turbos, but my builds are centered around longevity.

This exhaust is hands down the best sounding option for the Ecoboost out there. I’ve had countless CRP turbos and all of them have worked perfectly!

 

[boostkingMatt]

The busy weekend has begun. So my exhaust idea of hooking the Corsa up temporarily did not work lol. I got the Raptor downpipes on and broke them in. Right now the exhaust just goes down to the trombone, and then to my y pipe and then just for now I threw a resonator I had laying around on the end of it.

yes yes I know it’s sketchy with wire holding it up and all, but below I’ll show a picture that SPD sent me today.

this is their HX muffler with the Helmholtz to help tone down the drone without reducing volume. It’s a pre axle dump as well. This is going to make the exhaust dual as you @GearHead_1 and @full-race geoff suggested it should be to take advantage of the flow capabilities of the alpha downpipes.

However, this isn’t their Gen 2 muffler. This is a prototype of a setup that will bolt right into the 2021+ raptor trombone. You see, SPD’s trombone they made before was much much longer. Anyone putting raptor downpipes and a trombone on their 2021+ 3.5 f150 had to get the Gen 2 HX muffler from SPd and then add some lengths of pipe between the trombone and the SPD muffler to make it work.

This muffler reaches all the way to the raptor downpipes!

Also I’m digging into the turbos as we speak. Thankfully the bolts came out much easier this time as I made sure not to crank down on them so hard when I out the Turbobay units in.

 

[GearHead_1]

That looks like a nice piece. I'll be interested in reading your opinion on it.

 

[boostkingMatt]

They are also sending me their trombone also. I won’t be using the ford trombone that I have. The difference between theirs and fords is the ford one is not exactly equal length, causing high rpm rasp. Theirs is perfectly equal length.

 

[boostkingMatt]

Passenger side is finished!

 

[GearHead_1]

Just so long as you aren't standing there looking at it with one bolt left in your hand. Good job.

 

[boostkingMatt]

Just so long as you aren't standing there looking at it with one bolt left in your hand. Good job.

I’ve done this enough times to not have that issue. But I swear every time I do it I find a new trick that makes it easier. Simple things like putting a little grease on the black coolant slip joint gasket to make them slide easier when you slide the bell end over top of them.

 

[Jljones98]

Just so long as you aren't standing there looking at it with one bolt left in your hand. Good job.

I though extra bolts were normal 😯

 

[boostkingMatt]

Couple photos for you guys. Driver side now

CRP Stage 5 on the right. It’s all back together now. Just have to hook up the downpipes, button up the turbo plumbing and all done!

 

[boostkingMatt]

Turbos are installed and truck runs with no leaks! Yay!
Also threw this hot side piping kit from CVF on the truck while I had everything taken apart. This thing is gonna be bad to the bone when it’s all done!!

im amazed how the CRP Stage 5s sound compared to the Turbobay turbos. Stage 5s are much louder. Also, you guys might be wondering about spool. It’s hard to compare because I have the SPD downpipes on now which greatly help spool time, but these stage 5 even with a 50mm turbine spool ridiculously quick. They spool faster than the Turbobay Turbobay’s and just as fast if not faster than the stage 4s (which I had stock downpipes with that setup so it’s not totally fair)

 

[mdpopp30]

Thanks for the update.

Everything is looking great!

 

[boostkingMatt]

Alright so I decided to, as Anthony said, let her eat a little and go WOT. WOW, just wow. The truck pulled very hard, and the stage 5 turbos spooled instantly.
the spool is faster than the stage 4s were and faster than the Turbobay’s. I’ve never seen a turbo spool this fast.
I believe it’s due to the SPD downpipes. The stock downpipe has four cats! The fact that spool was that quick tells me those stock downpipes were a serious restriction. Cool thing is, I am getting no check engine lights from the SPD alpha cats.

 

[boostkingMatt]

I’ll say it again… turbo spool is insane with those SPD downpipes. Feels like I have stock turbos again.

And, I’m still waiting on the SPD exhaust… about to lose my mind!!!! I’m too impatient.

 

[SrpRacing]

The faster spool could just be the wastegate table being a bit aggressive as it was based on the stock setup.

 

[boostkingMatt]

The faster spool could just be the wastegate table being a bit aggressive as it was based on the stock setup.

True, but the tune file is unchanged…

 

[TOWMA8R]

True, but the tune file is unchanged…

When are we getting some logs and times?

 

[boostkingMatt]

When are we getting some logs and times?

When the exhaust is done. I want to have it all finished and ready to roll.