You are the channel I was hoping to find. I like evidence and that is what you bring. Thank you very much.

@WT4T

6 ай бұрын

Much appreciated!

Great video content, great explanations on the testing.. and congrats on 2k subs 👌

@WT4T

6 ай бұрын

Just plugging away!

Be super keen to see you test the turbosmart plumb back diverter valve

@WT4T

6 ай бұрын

I'm super interested in why anyone would need or want a plumb back diverter valve when the factory one isn't known to leak or fail and is ecu controlled.

@ITZAWRAP_AU

6 ай бұрын

@WT4T I personally changed it because the standard one drags when coming off boost and has a terrible noise when doing so with a air intake

Pretty awesome to see the results on the Perrin Turbo Inlet. Have you been able to disclose the info on the prototype part yet? 🤔

That turbo inlet is a must on any tuned VB. Great video! I'm dying to know what that part is now.

@WT4T

6 ай бұрын

Yeah, I was shocked the difference

@chrischarles9218

5 ай бұрын

@@WT4T Mr. Perrin let you reveal yet?

@WT4T

5 ай бұрын

@chrischarles9218 nope

@VBmike2100

4 ай бұрын

@@WT4Twhen!? lol

When can we see what is this part

Removed TMIC for mystery prototype part and others have guessed Diverter Valve... I am guessing an updated EGR valve then hmmm... Awesome to see gains from both the inlet and mystery part

@WT4T

6 ай бұрын

I'm not sure how that would pick up power but interested to see.

@SubySlider17

6 ай бұрын

@@WT4T yea just a guess, you seemed surprised in picking up power. Looking forward to seeing what it is when Perrin gives the go ahead. Cool video!

@WT4T

6 ай бұрын

@TheSubyslider17 🧐

I really enjoy the content . Do you think its worth it to remove the coolant lines from the oem inlet to lower intake temps? Would it be negligible and might as well do whole inlet replacement

@WT4T

6 ай бұрын

Probably pretty negligible

It’s a diverter valve. Also, the removal of the PCV system venturi is stupid. It’s there for a reason, and that’s to keep the crankcase under vacuum during transient conditions. This is even more vital when running larger factory intakes / Inlet pipes due to the reduced depressions in them. It’s not a “boost leak” like Perrin calls it, it’s simply a recirculation from the outlet side to the inlet side of the turbo. A large portion of the energy lost is recovered because it increases the pressure on the inlet side which helps to decrease the pressure ratio of the turbo. Even if it causes a 5-10HP loss, it’s worth it to keep the crank case under vacuum. VAG has been using this system on different versions of the EA888 and for those without it, you’re starting to see people retrofit the venturi.

@WT4T

6 ай бұрын

Negative

@JordieG8

6 ай бұрын

@@WT4T come one man, I like your channel, give me more than that! Lol Edit: oh, you meant Negative to the diverter valve. It was worth the guess.

@WT4T

6 ай бұрын

Perrin has a fix for this, which is the lines I put up top on the car 🤗 Yes, the "negative" was for the diverter valve comment.

@JordieG8

6 ай бұрын

@@WT4T I’m not sure if they can fix the deletion of the venturi, there needs to be a decent vacuum source to keep the crank case under vacuum. When the manifold is transitioning to positive and the inlet pipe isn’t flowing enough to generate a decent depression. A mechanical vacuum source or venturi would be the only way. Personally, I just wouldn’t want to give up the benefits of having solid crank case vacuum for the limited benefits of not having it. It’s actually a clever solution. Moving to a venture style PCV system on gen 3 E888’s has basically eliminated oil consumption on track and helps to mitigate PCV issues when running larger intakes. In my testing of my own venturi system, it takes about 10g/s of airflow at 29PSi. The wastegate PID hardly has to do anything.

@WT4T

6 ай бұрын

@JordieG8 interesting. Now I'm curious, I'd like to measure how much vacuum it actually draws vs the solution Jeff came up with.

@WT4T Any info on what the prototype part is yet? Second question.. does the turbo inlet need a tune, or can it be used safely on a stock car? (From a research paper : Effect of EGR jet position on gasoline performance and NOx emission :) )

@WT4T

3 ай бұрын

I wouldn't use any mods at all really on a stock untuned car because there's no closed loop fuel control at WOT on the stock map. Basically any tune even like the ots Cobb maps or my maps adds closed loop control and the inlet is fine on those.

@matthewwain9958

3 ай бұрын

@@WT4T perfect. Thank you!

Ahhh Perrint prototype EGR!!?

@WT4T

6 ай бұрын

Not sure what that is or how it would make power.

I wonder how much power it will make when its tuned for these mods.

@WT4T

6 ай бұрын

Probably 5-10hp more on 92oct

Are you able to dosclose the prototype part yet?

@WT4T

Ай бұрын

I don't believe so 🫢

is the Perrin Diverter Valve been waiting a minute to get my hands on it.

@WT4T

6 ай бұрын

Nope. Zero interest in aftermarket diverter valves.

@carbon9652

6 ай бұрын

scratch that seeing where is being installed is a Perrin EGR

Does this turbo inlet require a tune after install ?

@WT4T

6 ай бұрын

Not on our maps, but I can't speak for others or stock.

You cannot complain about the power increase. However, I just don't like how flimsy it looks compared to the factory part, especially the dangling coolant line. The original part was a solid (I'm assuming aluminum) block with a lip to accept the intake tube, the Perrin inlet just looks like a wide flimsy tube held onto the intake tube and turbo with not much for the hose clamps to reliably grab onto. I dunno, correct me if I'm seeing this wrong.

@WT4T

4 ай бұрын

The turbo connection is billet aluminum but the tube itself is wire reinforced Silicon. Pretty standard in the industry. You don't need much to "clamp onto" because the part carries no load.

@Kopernicus67

4 ай бұрын

Thanks for the clarification. Still don't like the coolant line, rather than zip tie, I'd shorten the coolant line altogether farther up in the engine bay, @@WT4T

@WT4T

4 ай бұрын

@Kopernicus67 I agree there but I left it alone so I can go back easier later.

I wonder why the stock turbo and turbo inlet pipe has that weird path that allows for boost leak to happen. Is Subaru using it as an unusual way to hold back power at high rpm?

@WT4T

Ай бұрын

They're using it to pull a little vacuum on the evap system and I do mean A LITTLE.

@aaronbryan5095

Ай бұрын

@@WT4T that's the strangest way of implementing this that I've ever seen from the factory 😂

@WT4T

Ай бұрын

@aaronbryan5095 yes sir. #engineering

im running an e40 ots map. how often do you think i should change my oil? i know it loses viscosity early. i have the 22 wrx

@WT4T

6 ай бұрын

Definitely not more than 3k.

@ironmandingo1

6 ай бұрын

@@WT4T thanks man. I might get that turbo inlet to run with my e40 tune since it doesn’t need any type of tune

@WT4T

6 ай бұрын

I can't promise that for everyones OTS maps, but ours run it great.

@ironmandingo1

6 ай бұрын

@@WT4T ok. I’ll get with the tuner and ask if it’s ok to run it. Great talking to you

@WT4T

6 ай бұрын

@ironmandingo1 it's ALWAYS a good idea to consult your tuner before changing parts. They know better than anyone in the industry what works and what doesn't.

Left & right is always from sitting in the drivers seat same for usdm and jdm

@WT4T

6 ай бұрын

I wouldn't say "always" scan tools can't make up their mind and neither can service manuals

Just as devil's advocate, how much of these could be only noise from run to run? Humidity, ambient temperature, initial IAT, etc? Seems to me ~3 whp is just variance, isn't? More than 5 maybe is significant? Thanks, great content!

@WT4T

6 ай бұрын

I do a series of 3-5 runs for every "test". As for environmental conditions all runs are same day as close together as possible and weather corrected using a weather station in the room.

@0Camus0

6 ай бұрын

@@WT4T My apologies! Perfect, then the change is significative and not noise. I wasn't expecting such an increase without re calibration.

@WT4T

6 ай бұрын

@0Camus0 me either!

Was this an eye spy? You missed a spot :D

@WT4T

6 ай бұрын

Sure 🤷‍♂️

Hmm improves driveabilty, smaller part, no bolts just the part, part # is psp-eng-250. I know it is engine….made a little more power. Throttle Body Spacer?

@WT4T

6 ай бұрын

😏 maybe. I do have quite large hands. It could have had hardware.

@chads7796

6 ай бұрын

lol you are good. Well the bag was fairly small so only so many things can fit. You installed on the dyno so it must have been quick/easy. All I know is I want one and have a Perrin turbo inlet, Perrin mBPV and a few other non essential bits to add and a retune (currently dynoed at 354whp/356wtq on 93 Drunkmann tuned at Felix Performance). Wonder when Perrin will release this?? I will probably wait for it for a retune.

Perrin? Like the T-shirt company?

@WT4T

6 ай бұрын

They do sell t-shirts, but they've been making car parts for at least 20 years.

Mystery part a DV ?

@WT4T

6 ай бұрын

DV?

@chewy6367

6 ай бұрын

@@WT4Tdiverter valve sorry.

@WT4T

6 ай бұрын

Oh, no, no reason for one. Factory is fine

@chewy6367

6 ай бұрын

@@WT4T great videos, very informative.

@WT4T

6 ай бұрын

Thanks, many more to come on this platform!

A shiny new oil cap 😂

@WT4T

6 ай бұрын

You'd probably be able to see that in the video after the install.... but... 🤷‍♂️

@M0NST3RIAMP3D

6 ай бұрын

Imma guess it’s a throttle spacer 😅

@chrischarles9218

6 ай бұрын

@@M0NST3RIAMP3D That is what I was thinking when I saw him take off the inter cooler. Some type of spacer that separates the heat from the throttle body to the intercooler... just spit balling here..

I wonder how much power you can get from a lightweight crank pulley? nevermind, you can't fit a pulley in you hand. probably an egr jet or a spring

@WT4T

6 ай бұрын

Zero that's ever worth anything. I tested them a while back on brz and zero real gain with tons of issues.