So, remember that TT swap we were working on?

[MoclovFlop]

Well, A lot has changed causing it to slow WAYYYY down. My friend was planning on trying to get a stock EJ20R into his GT wagon, but due to crazy amounts of work, and lack of aftermarket support, we (both of us are involved because I'm R&D, and he's the mechanic) decided to convert it to single turbo and do some upgrades. So we upgraded to a 99 WRX ECU (which is matched for the yellow top 440cc stock injectors) bigger TMIC, bell mouth DP, after market header + Up pipe, and a clocked and converted VF40 (Stock LGT turbo) fed by the aftermarket silicone hoses (which are causing problems as seen in the pics, but we'll get it worked out shortly).

He just finished freshening up everything like the timing belts and what not, and bought a stage two Exedy clutch and LW flywheel, which will be going in to the stout tranny with a matched 2000 Automatic 2.5 RS rear diff running 4.44 gears and VLSD.

We only have a few things left to source like rear axles (anyone know how wide the BK is compared to a WRX sedan or Wagon?) and some misc. parts before it gets dropped in the end of summer. We will start the wiring within the next month, and then the fun begins!

This thing should be a freaking beast when all is said and done, the EJ20R is a crazy engine with all sorts of goodies like sodium filled valves, forged rods and crank, semi closed deck plus a few other things.

Here are a few pics from the test fit of the new hoses. You can also see the interference from the IAC, this will be resolved shortly with a block of plate for the stock BOV location and moving it to the other side. (the TMIC is meant for a Bugeye WRX which have no IAC right there.) OR if there's enough room, the TMIC will just be moved back towards the firewall

PS. I was the one who powder coated the manifold, it turned out amazing as you can tell. If anyone wants to get it done, let me know, I still have some powder and will have access to everything again in the fall semester in August!

Sorry for some blur!

https://sl-i.net/FORUM/images/imported/2008/06/P51902761-1.jpg

https://sl-i.net/FORUM/images/imported/2008/06/P5190280-1.jpg

https://sl-i.net/FORUM/images/imported/2008/06/P5190278-1.jpg

https://sl-i.net/FORUM/images/imported/2008/06/P5190282-1.jpg

https://sl-i.net/FORUM/images/imported/2008/06/P5190283-1.jpg

[WinterKnoll]

Wow, looks like a great build. If I'm not mistaken, the BKs are very slightly wider than the WRX.

[Huffer]

If it helps, a WRX wagon rear strut brace fits a BK perfectly.

The EJ20Rs are fantastic...they will go hard unless you boost spike, so make sure all your connections are solid.

[rougeben83]

Now who said the TT ej20's wouldn't work on LHD cars...hmmmmmm :la:

I wonder... :wink:

[MoclovFlop]

Yea yea yea..... it would have worked but a crazy 90 degree elbow and some other modified plumbing would be needed to move the turbo down and over to move it out of the way of the booster. It is possible, just not smart.

WK: slightly wider than the sedan or the wagon?

[xXGTBspecXx]

ive failed the TT swap but i did relocate a turbo to get everything to fit :D its not hard just time consuming..

[Reuben]

Oh the joys of swapping intercoolers on the 20R's... I've got a V6 STi one sitting in my room unused cause i haven't been able to work about that BOV mount. will do it eventually :P

Something worries me about your post though:


the EJ20R is a crazy engine with all sorts of goodies like sodium filled valves, forged rods and crank, semi closed deck plus a few other things.

They are unfortunately completely open deck, the cranks are ordinary 2L turbo cranks, and the pistons are reportedly forged, but mine were rather cast... I may have got short changed, but my engine was a 20R, no doubt about it.

The plus side is they are basically V3/4 STi engines with two turbo's. They even have identical looms bar the wiring for coil on plug instead of wasted spark coil pack. eveything, from injectors, to ECU to intake manifold, to intercooler are swapable with the V3/4's no fuss, or the same. They even have the same heads apparently, except the TT one has an extra hole drilled into it for the primary's oil return. Check out my sig if you want to see my single conversion thread, i think it'd be a good idea to post it up here though :grin: (it'll take you to clubsub.org.nz)

[Reuben]

And the blocks. My new closed deck sitting next to the 20R's open deck:

https://sl-i.net/FORUM/images/imported/2008/06/closedopen-1.jpg

[auspex]

On the topic of the TT....and this message may show how uneducated I am about the foreign beast.

But couldn't you take a USDM equivalent and essientially mirror the TT setup?

Is this possible? Should I have another martini?

*and by equivalent, I mean same displacement motor....

[Reuben]

What do you mean by mirror it? Like running the turbo's on a USDM engine such as an EJ205?

Basically putting in the subaru sequential system is a nightmare vacuum lines, actuators, solenoids and loom that is NOT worth the trouble. The good thing about the EJ20R is the fact you can turn it into a V3 STi engine! Single turbo is much better and easier, and has more potential.

[auspex]

I understood there were issues because of the lhd/rhd differences. ah, nevermind...trying to explain my self I'm getting a better image in my head of why what I'm saying doesn't work.

[MoclovFlop]

They are unfortunately completely open deck, the cranks are ordinary 2L turbo cranks, and the pistons are reportedly forged, but mine were rather cast... I may have got short changed, but my engine was a 20R, no doubt about it.

Really? I don't doubt you one bit (how could I?), but I thought the casting marks on the block (the grid pattern) were indications of it being at least semi-closed, but obviously i was wrong. I must have had my info wrong, same with the crank (damn), but like you said they are essentially v3/4 sti shortblocks, which from what I read have forged internals, (again, may be false, just going off posts on NASIOC, I've also read they are moly coated cast) which is one of the reason's they are stronger than the EJ20H.

I could absolutely be talking out of my ass, we haven't cracked it open to check for our selves, just going off what I've read from people that have. Either way it's a sick engine with great flowing ports and valves, so it should be a good foundation for fun.

I may be hitting you up for some help soon, because I will, def. be needing it.

[Reuben]

Well my engine has caused quite a bit of controversy, i've had people totally conviced 20R's had forged pistons, to which i reply with a pic of my cast pistons, only to get "you musn't have an EJ20R then" responce (Damn arrogant aussies! And i can say that, i'm a kiwi :P).

Whatever the case may be, i could have simply been short changed, it's been known to happen. I know that the short blocks are the same, and the heads i've been told are the same too (though that one i do not know the validity of yet).