Reubens Second Single Conversion thread. 56k fail.

[Guest]

 Koom']

[quote name='ReubenH said:

Bolts to block off the primary turbo's Oil supply, return and coolant return lines on the left hand head. These can be taken off an N/A

IMG]http://i197.photobucket.com/albums/aa208/Pilot_Reuben/Single%20Conversion/single-parts/IMG_5667.jpg[/img]

You can find these on any EJ20. They are on the front of the head to block the end of the oil gallery.

does the oil gallery run front to back of each head? and you can tap into it at both ends ?

-smurff

[Drunkenmonkey]

i got them from the back of the head

[Guest boostin]

 smurff said:

does the oil gallery run front to back of each head? and you can tap into it at both ends ?

-smurff

Yes.

[Guest]

 boostin']

[quote name='smurff said:

does the oil gallery run front to back of each head? and you can tap into it at both ends ?

-smurff

/quote]

Yes.

then y on the secondary turbo dose the oil feed come off the front of the block, is this important?

there is a bolt in the gallery at the rear i guess, so i can change the feed for my secondary to there ?

-smurff

[Guest boostin]

 smurff']

[quote name='smurff said:

does the oil gallery run front to back of each head? and you can tap into it at both ends ?

-smurff

/quote]

Yes.

then y on the secondary turbo dose the oil feed come off the front of the block, is this important?

there is a bolt in the gallery at the rear i guess, so i can change the feed for my secondary to there ?

-smurff

I don't know. I didn't design the engine.

I guess you could.

[ReubenH]

Well, the hole is there in the first place. Dunno why, but it was there before twin turbo was, (i think). So i guess subaru just used the hole that was there.

[Guest]

 boostin']

[quote name='smurff said:

does the oil gallery run front to back of each head? and you can tap into it at both ends ?

-smurff

/quote]

Yes.

then y on the secondary turbo dose the oil feed come off the front of the block, is this important?

there is a bolt in the gallery at the rear i guess, so i can change the feed for my secondary to there ?

-smurff

I don't know. I didn't design the engine.

I guess you could.

you dont know? how disapointing :P

think i may have to look into this, would make my plans a wee bit easier

-smurff

[gazzy2000]

 Drunkenmonkey']

[quote name='gazzy2000 said:

Haha, i thought i reckonised that manifold, i sold those ST V4 conversion parts on TM.

Great to see them being put to use! I may have that hose missing off the breather if you want it. Just need to know what it looks like.

/quote]

so you sold him the twin turbo intercooler bracket instead of a single turbo one

btw thanks reuben for starting this for me

Um, if i did i didnt mean to, i have the V4 intercooler brackets here if you want them. I must have got them mixed up after doing my TT to ST. Wudnt have done that intentionally, besides i can only use V5 brackets.

[ReubenH]

We got that sussed. Dunno where from, but it's all good now.

[Drunkenmonkey]

i got them with my intercooler, phillb just felt a little ripped off when i told him he couldnt on sell them cause they were twin turbo ones...

[gazzy2000]

 Drunkenmonkey said:

i got them with my intercooler, phillb just felt a little ripped off when i told him he couldnt on sell them cause they were twin turbo ones...

as he wud! well if phillb dosent need them and in good faith i can offer these v4 brackets for free to any CS member doing the TT to ST, postage incl, hows that sound?

They can be quite hard to track down.

[ReubenH]

They can be very hard to track down. I had to drive 120K's and pay $40 for mine when i did my convertion. But now i have friends at strong for subaru, who can get aaaaaaaanything

[ReubenH]

Not much to show for the days work, but meh.

Started the day by removing the turbos. I hate twin turbo...

Then removing the exhaust manifold, which promptly fell on the bucket of coolant...

Primay oil return, and coolant feed

Secondary oil return, and coolant feed

My blanking bolt installed, nice. Just need to grab a big bolt to shove in the oil return pipe. Nothing glamourous about it, but it's easier that fitting a bloody frost plug, or cutting and welding the pipe like i did

Intake manifold off

Always stuff a rag in the intakes to stop stuff falling in

And by some miracle from the subaru gods, a subaru engineer actually did something RIGHT... there is JUST enough room to get the primary oil feed off without having to f*cking take the cambelt and cam wheels off. joy of joys!

Second blanking bolt installed

Always sand your mating surfaces

Comparing the single turbo and twin turbo heatercore lines.

Installed

Changing to single turbo oil return and coolant feed lines. Apply a prying force, and whack with a hammer to twist it up and down to remove.

Out with the old, and in with the new

[ReubenH]

Stripping the intake manifold

And installing 2 right hand rails on the sti manifold, for a parallel fuel rail. Have yet to get the fuel hose for that.

Having a perve of the sti manifold on the block. Genuine subaru red and silver cammo is the in thing for these model years

[Guest]

Watching with almost unhealthy interest... I'm getting that 'need more speed' twitch

[gazzy2000]

Nice work Reuben, are you going to do ilders, tensioners, oil pump service etc, while the engine is out?

[ReubenH]

Nup, they were done like 20,000K ago. He blew a headgasket when he bought it, so it's new rocker covers, seals, belts and reverything.

[Guest boostin]

Paint the damn manifold while its off!!

[gazzy2000]

 boostin said:

Paint the damn manifold while its off!!

yer, dam near aye! mine only cost $30 to get powder coated

[aim]

This is really cool

[Guest]

nice work so far

[Guest]

seeing you know alot about single turbo conversions and since ur doing one, can you please tell me how much it would cost me to do a single conversion on my TT b4 legacy 2001? thank you

[gazzy2000]

 KC said:

seeing you know alot about single turbo conversions and since ur doing one, can you please tell me how much it would cost me to do a single conversion on my TT b4 legacy 2001? thank you

I have done it on my GT-b 2001 BH5, i will let Reuben answer this properly regarding cost.

But pretty much the conv involves using a std STI V5/6 ECU which is factory tuned for 8.5:1 Compresison ratio and i would say your engine will be the same as mine 9:1. This causes too much advanced timing causing major detonation under load/boost.

Apart from stripping the engine down to change the CR, the only other option is to use a after market ECU like a possum link so you can tune it to suit.

Cost of a possum link varies, the whole cost of the conversion is dominated by how much you can do yourself and what else you want to do while the motor is out, i.e. clutch, water pump, oil pump seals and service, idlers, cambelt etc etc.

I got my insert possum link for $650 and avoided the cost of a dyno tune (another $700) as it was pre tuned from another clubsub member with a similar TT to ST conversion, so i was lucky. But that was still $650 i didnt budget for, taking the cost of my conversion to about $2000 and thats doing ALL the work myself.

Reuben will no doubt fill in the grey areas

Cheers

[Guest boostin]

KC's Legacy is a facelift which has the Denso ECU, and I'm pretty sure no single turbo ECU matches the wiring. Its only the BE/BH5 A/B/C's you can convert, not the facelift D's.

[Guest]

I have also been reading through this thread with great interest as well.

I can see all the engine department swap over stuff is pretty straight forward, My question is that i have been thinking about is the "ecu".

My legacy B4 RSK manual is the 2000 model with the 3 plug ecu.

I have gathered that a V5 or V6 ecu will fit in, but the hard part that i am still trying to figure out is, if it all plugs in what wires need to be changed over if any to make it all work ?.

Thanks if you can help