[boostkingMatt]

Both turbos are installed. I had a leak but fixed it , and I’ve driven it around quite a bit today on the stock tune and take some datalogs. Gonna analyze some data and then throw Brett’s tune back on. They are very loud and I couldn’t be happier! Can’t wait till I get some kind of exhaust to free up the other end

 

[TOWMA8R]

I am jealous

 

[boostkingMatt]

So Brett’s tune with the stage 4 turbos made the same boost, same airflow and with the same wastegate as the stock turbos. I would have expected it to make the same or more with less wastegate and also make more airflow. Anyone have thoughts? One thing I didn’t compare but I did notice on the stage 4 datalog was that throttle was closed during most of the pull. I’m not sure how the stock turbo tune was in that regard.

 

[FanaticalKilla]

If your throttle is closing drastically you will have a huge restriction.

 

[boostkingMatt]

If your throttle is closing drastically you will have a huge restriction.

Yep. The throttle was closing a lot

 

[Sirikenewtron]

Got my stage 4 CRP Turbos in today! Spent the rest of the day working on the truck. I got the passenger side finished just have to get the driver side finished tomorrow morning. Everything be went great. 2022 3.5 is pretty easy to do the turbos on actually. I was expecting it to be harder than the 2.7 but it wasn’t. View attachment 197854
Stock is on the right. Stage 4 on the left.
View attachment 197851
stock 9 blade on the left and stage 4 45mm 8 blade on the right.
View attachment 197853
View attachment 197852
Andrew sent me so much merch!!
View attachment 197850
Look at that gorgeous 46/56mm compressor wheel. Can’t really see it in the photo but it has a CR stamp on the blade.

Heck yeah!!!

Wait, did I miss it? This truck is already out of warranty? For some reason I thought you had a lot of warranty left.



Looking good though man!
It's funny I remember it was said just gonna take it easy on this truck and now here we are. Lol I totally get it though, I have the same problem with certain things.

I'm excited to see where you take this truck!

 

[boostkingMatt]

Heck yeah!!!

Wait, did I miss it? This truck is already out of warranty? For some reason I thought you had a lot of warranty left.



Looking good though man!
It's funny I remember it was said just gonna take it easy on this truck and now here we are. Lol I totally get it though, I have the same problem with certain things.

I'm excited to see where you take this truck!

Haha, I do have warranty left but I don’t care about it.
Yeah, it was a sponsorship thing or else I probably wouldn’t have done it.
I won’t be going crazy with the truck, I can’t afford to have it blow up.
exhaust will be coming eventually though, CVF is sponsoring that, downpipes and such.

 

[Gord0]

So Brett’s tune with the stage 4 turbos made the same boost, same airflow and with the same wastegate as the stock turbos. I would have expected it to make the same or more with less wastegate and also make more airflow. Anyone have thoughts? One thing I didn’t compare but I did notice on the stage 4 datalog was that throttle was closed during most of the pull. I’m not sure how the stock turbo tune was in that regard.

Closing it down due to some limiter to keep torque in check?

 

[FanaticalKilla]

Closing it down due to some limiter to keep torque in check?

Airflow limiter or something is off. I'm sure Brett will bounce some revisions and get it figured.

 

[SrpRacing]

Honestly, I wouldn’t expect much gain just from switching compressor wheels. I’m no engineer, but that’s just my opinion. I’ve never modified a tune for just changing compressor wheels.

If anything, you’re just changing spool time. But on a torque based system, the calibration already compensates for spool/turbo lag by utilizing the electronic wastegates.

Kinda confusing as the dyno graph they show for the turbos compares a truck running E85 and Pump Gas.

 

[boostkingMatt]

Honestly, I wouldn’t expect much gain just from switching compressor wheels. I’m no engineer, but that’s just my opinion. I’ve never modified a tune for just changing compressor wheels.

If anything, you’re just changing spool time. But on a torque based system, the calibration already compensates for spool/turbo lag by utilizing the electronic wastegates.

Kinda confusing as the dyno graph they show for the turbos compares a truck running E85 and Pump Gas.

It’s not just the compressor wheel that changed. The turbine is now 45mm and 8 blade instead of 9 blade.

 

[SrpRacing]

Sorry I meant compressor wheel and turbine.

Does CRP have any actual data on the changes? The Dyno graph is pretty misleading.

 

[boostkingMatt]

Sorry I meant compressor wheel and turbine.

Does CRP have any actual data on the changes? The Dyno graph is pretty misleading.

Oh ok. They have sizes and such but that’s about it. There’s no data on what these will flow per se. When I compared stock turbine to the 45mm 8 blade turbine it doesn’t look much different. The 2.7 really benefits from that 45mm 8 blade that they put on the stage 4 for the 2.7 but I am thinking the 21+ 3.5 might be best with a 50mm 8 blade.

I am not going to spend any more money than I have but in reality I am not really sure what these will actually flow compared to like a Garrett upgrade once those come out.

the compressor wheel on these is no doubt, much larger, but the inlet is the same size, they just widen it out inside. For those people wanting to make a bunch of power I’d wait and get Garretts.

CRP always makes quality stuff, but will it flow like I want? I sure hope so… if not, it’s not a huge deal since I’m not wanting to blow this truck up.

 

[boostkingMatt]

Honestly, I wouldn’t expect much gain just from switching compressor wheels. I’m no engineer, but that’s just my opinion. I’ve never modified a tune for just changing compressor wheels.

If anything, you’re just changing spool time. But on a torque based system, the calibration already compensates for spool/turbo lag by utilizing the electronic wastegates.

Kinda confusing as the dyno graph they show for the turbos compares a truck running E85 and Pump Gas.

Also, when I floor it on Brett’s tune I hear boost fluttering in and out, and on the tune, wastegate jumps up and down with boost like crazy, so it’s trying to limit itself somehow.

 

[FanaticalKilla]

Oh ok. They have sizes and such but that’s about it. There’s no data on what these will flow per se. When I compared stock turbine to the 45mm 8 blade turbine it doesn’t look much different. The 2.7 really benefits from that 45mm 8 blade that they put on the stage 4 for the 2.7 but I am thinking the 21+ 3.5 might be best with a 50mm 8 blade.

I am not going to spend any more money than I have but in reality I am not really sure what these will actually flow compared to like a Garrett upgrade once those come out.

the compressor wheel on these is no doubt, much larger, but the inlet is the same size, they just widen it out inside. For those people wanting to make a bunch of power I’d wait and get Garretts.

CRP always makes quality stuff, but will it flow like I want? I sure hope so… if not, it’s not a huge deal since I’m not wanting to blow this truck up.

They might be more efficient then the stocks. How's spool up compared to the stockers?

 

[boostkingMatt]

They might be more efficient then the stocks. How's spool up compared to the stockers?

I sure hope so. CRP advertises their 8 blade turbine as 45mm, but I’m not sure which measurement they are speaking of. Inducer or exducer?

I just measured my stock turbos and the exducer is 40mm and the inducer is 45mm on the turbine

so I sure hope that CRP means the exducer not the inducer otherwise it’s only difference is having one less blade.

The spool is slightly slower but very imperceptible.

 

[boostkingMatt]

Also, the stock downpipes are a huge horsepower restriction. Winfield over at Goosetuned picked up 32whp
Without changing a tune when they installed the SPD alpha downpipes on the 2021 raptor they had. It had an intercooler and turbos etc and was capped at 23 psi and 545whp on e85. After they changed the downpipes and exhaust it picked up to 630whp with 23 psi. They were maxed out tho, and any more boost and it lost power.

 

[Upshifter]

Oh ok. They have sizes and such but that’s about it. There’s no data on what these will flow per se. When I compared stock turbine to the 45mm 8 blade turbine it doesn’t look much different. The 2.7 really benefits from that 45mm 8 blade that they put on the stage 4 for the 2.7 but I am thinking the 21+ 3.5 might be best with a 50mm 8 blade.

I am not going to spend any more money than I have but in reality I am not really sure what these will actually flow compared to like a Garrett upgrade once those come out.

the compressor wheel on these is no doubt, much larger, but the inlet is the same size, they just widen it out inside. For those people wanting to make a bunch of power I’d wait and get Garretts.

CRP always makes quality stuff, but will it flow like I want? I sure hope so… if not, it’s not a huge deal since I’m not wanting to blow this truck up.

The one difference, if nothing else, that I noted between the stage 1 Garretts and the stock turbos (2015 3.5 mind you) is that the exhaust side housing was absolutely massive compared to oem. The intake side looked about the same, and of course the inlets and outlets were exactly the same as stock.

And of course the wheels were prettier (highly technical detail).

My understanding of the CRP turbos was that even if they are re-use oem housings, they machine out some of the interior housing wall to increase volume, is that right?

Also, the stock downpipes are a huge horsepower restriction. Winfield over at Goosetuned picked up 32whp
Without changing a tune when they installed the SPD alpha downpipes on the 2021 raptor they had. It had an intercooler and turbos etc and was capped at 23 psi and 545whp on e85. After they changed the downpipes and exhaust it picked up to 630whp with 23 psi. They were maxed out tho, and any more boost and it lost power.

A dyno can be a good diagnostic tool, or a good marketing tool, depending on how it is used.

A 23 hp gain at that level could also be the difference in getting temps down and OAR up.

But, all that said, when you are far from stock, there is a point when that plumbing becomes a restriction.
Was the GT Raptor tune-only (guessing certainly not, if they were getting 630 whp).
I'll give Goose tuned the benefit of the doubt that they were at that point, and didn't pull any shenanigans.

 

[boostkingMatt]

The one difference, if nothing else, that I noted between the stage 1 Garretts and the stock turbos (2015 3.5 mind you) is that the exhaust side housing was absolutely massive compared to oem. The intake side looked about the same, and of course the inlets and outlets were exactly the same as stock.

And of course the wheels were prettier (highly technical detail).

My understanding of the CRP turbos was that even if they are re-use oem housings, they machine out some of the interior housing wall to increase volume, is that right?


A dyno can be a good diagnostic tool, or a good marketing tool, depending on how it is used.

A 23 hp gain at that level could also be the difference in getting temps down and OAR up.

But, all that said, when you are far from stock, there is a point when that plumbing becomes a restriction.
Was the GT Raptor tune-only (guessing certainly not, if they were getting 630 whp).
I'll give Goose tuned the benefit of the doubt that they were at that point, and didn't pull any shenanigans.

CRP does not machine any of the exhaust housing out. It’s stock, and it is tiny. I’d almost go so far as to say, the 2.7 housing looked larger? I don’t have one now to compare but it didn’t seem like the 3.5 exhaust housing was any larger than the 2.7 exhaust housing. Of course the 3.5 turbine wheel is bigger. CRP confirmed to me this morning that their 45mm 8 blade is a 45mm inducer and 40mm exducer which is the same size as the stock turbine. Of course it’s a much different design with it being performance oriented and 8 blade instead of the stock 9 blade.

im not going to expect some huge horsepower gains. Just going to get it tuned where Brett likes it and leave it be.

If I was going crazy like I did on my old truck, I wouldn’t be happy with these, I’d want the big Garrett’s and formline manifolds etc

That’s not exactly what it was, they had the stage 4 turbos on the Gen 3 raptor with an e85 tune and it wouldn’t make any more power than 545whp with 23 psi of boost.
Then they did the alpha downpipes and ran the truck again on the same exact tune and picked up 32 horsepower. After some tuning he got it to go up to 630whp at the same amount of boost, 23psi. So it is obvious that the dual catted downpipes are a huge restriction.

 

[mdpopp30]

I'm certainly curious what these $2200 downpipes are worth performancewise.

I'm closely watching your turbo swap results.