The "Hose 10" Mod - BE/BH

[Rosssub]

The solenoid's tucked up inside the guard. You'll need to take the wheel off, then remove the plastic inner guard liner to get to it.

[B4 I was 250T]

It's actually inside the guard. I advise jacking up the car, remove the wheel and guard liner and then you'll be able to see it

[Marky]

I advise removing it altogether

[Danihellfire]

Removing the guard liner altogether? going to start doing it now

[Danihellfire]

Ok i got around to cleaning the solenoid today... Now the 1st is boosting 0.9bar and still 1.0bar on 2nd... is my 2nd turbo getting abit old? its 1999 2nd never been changed..

[Rosssub]

That's average for factory boost.

[mjcruz13]

 Marky said:

I genuinely don't know how ^ that went wrong, but anyway

Did it to wifeys new rev-d on the weekend, time taken approx 8-12 seconds - take hose off the T junction before the BOV, block hose, put a cap on the open T outlet, done

Will use said outlet for a boost gauge if it ever gets one

Net result - goes a bit better, neat

I like the idea of using the tee to connect a boost gauge but I've heard of people saying to have a separate vacuum line for BOV and boost gauge or else you will get incorrect readings. I definitely want to do it this way as it's more convenient. Just wanna hear your opinion. Thanks in advance buddy. You're the best!!

[Rosssub]

 mjcruz13 said:

I like the idea of using the tee to connect a boost gauge but I've heard of people saying to have a separate vacuum line for BOV and boost gauge or else you will get incorrect readings. I definitely want to do it this way as it's more convenient. Just wanna hear your opinion. Thanks in advance buddy. You're the best!!

As long as nothing is leaking the only negative would be a slight delay in boost gauge response, due to the BOV diaphragm/actuator. Doubt it would ever be noticeable with 2 gauges side by side.

[mjcruz13]

I will do it this way then. Glad that I came across this forum. Thanks a lot mate!

[ReubenH]

Today I fixed the fallout of a line-10 mod on a BH5A GT. Customer brought the car to me with a blown primary. I noticed the primary it had in it was a VF18 also, from a BG, indicating it's not the first primary it's popped.

Modder beware. The line-10 mod won't kill you engine, the boost you get with it is well within what the motor can handle for sure. It's the turbo that suffers, primary's are already under enough stress as it is, basically boosting the entire time you drive (especially bad with autos, which this car was). Making them boost as much as a single turb is a sure fire way to shorten their life span. And the notion that "that's how rev. D's do it, so it must be fine" doesn't gell with me, my assumption is they would be tuned to run like that, the map for primary boost control is surely different to a pre-facelift.

All that said and done though, I went ahead and inspected the mesh filter inside the oil feed banjo, and sure enough it was blocked to f*ck. So blocked I couldn't clean it, so out she came for good. So obviously just the line-10 mod on it's own wasn't the sole factor in two successive primary turbo failures with this vehicle, but I'm sure it had a role in it.

So to those performing this mod, I suggest you treat the rest of the car with respect, you will be putting more strain on your primary, so no f*cking about skipping oil changes and running cheap oil, and inspect your feed banjo bolt mesh once in a blue moon (yeah, the c*nty one that sits behind the cambelt).

Edited June 9, 2016 by ReubenH

[Seaan]

I blocked off the t and the other end temporarily with a screw and went for a drive and first and second have lower psi now than before and don't spool up as good anyone help

[patrickc22]

So on my rev d I tryed to hose 10 mod and it raised the boost on full boost it would go up to about 19 psi and it would fuel cut 

what would the reason be hind it and why 

[Guest]

4 hours ago, patrickc22 said:

So on my rev d I tryed to hose 10 mod and it raised the boost on full boost it would go up to about 19 psi and it would fuel cut 

what would the reason be hind it and why 

 

Strange. Worked fine on mine. They are slightly different to the Rev a-c.

[patrickc22]

Yeah don't know if I went wrong somewhere or what do you have a photo of yours 

[Guest]

54 minutes ago, patrickc22 said:

Yeah don't know if I went wrong somewhere or what do you have a photo of yours 

 

Nope @Rosssub flicked me a picture and i copied it.

[les666]

Before

After

[patrickc22]

On 20 October 2016 at 6:57 PM, les666 said:

Before

After

Hey @les666 did you remove the pill in the bov line or leave it in 

[les666]

@patrickc22 nah I took it out. I also used one of the stock tee's for my boost gauge. 

[patrickc22]

9 minutes ago, les666 said:

@patrickc22 nah I took it out. I also used one of the stock tee's for my boost gauge. 

Okay all I did was replace the 2 house with a new one then blocked 10 off were it was Ted before 

[patrickc22]

On 26 November 2016 at 10:30 PM, les666 said:

@patrickc22 nah I took it out. I also used one of the stock tee's for my boost gauge. 

I have done mine like yours 

i was thinking because mine has had a tune that is why it is going above 20psi and fuel cutting 

 

[gunit439]

Sorry if this has already been answered before, I have a 2001 B4, TA-BE5 model, my setup in the car seems to be different than in the pictures. Can anyone post a pic or a link to the info I need to do the hose 10 mod on my car please?.

[patrickc22]

Do you have a rev d 

[t_manawaiti]

theres a hose between bov and manifold. If it has a hose t'd off it then cut that hose and block both ends. There is a video I made on the "twin turbo Subaru legacy owners club" page on facebook, also note some rev'd models dont respond well to the mod. And this mod can only be done on 3rd gens not second gens

[gunit439]

Sorry, how do I tell if I have a rev-d or if it is gen 3?, I do see a "T" at the end of the hose coming off the bov though, I tried taking it off and blocking both sides, went for a drive and it did not seem to change anything at all?. Will take a pic and post it in the morning, maybe that may clear things up a bit.

[patrickc22]

Dose yours look like the photo above few posts above