mazda_wes

iTrader: (6)

first things first, i have searched for all of my answers and found most of them. still a few unanswered though.

here are my plans/questions;

1. i will premix and block off OMP. can i just remove the OMP? i hear everyone talking about blocking it off, but not removing. sounds like a stupid question, but i just have to ask.

2. i want to keep the stock twins for the first few months and possibly a full year before i go for a single conversion. i am just going to have a downpipe made to adapt to my existing Racingbeat exhaust (while i am in there, i will add another o2 sensor for wide band). will i have the room to run the twins in stock sequential mode, or would i need to go non-sequential to fit?

3. from what i understand, i can use my transmission without any adapters, right?

i am also going to go with a stand-alone, but i will post that in the engine management section as to not get flamed here. i plan on using the RE intake manifolds if they fit under the hood and i will run the RE fuel system as long as it feeds the turbos well enough. the intake(s) and intercooler will be custom fit and custom welded, so that won't be an issue.

pistones

iTrader: (5)

you can use the S4 turbo omp but need to make a custom linkage to hook up to the throttle. or just premix like you said, you will need a blockoff plate when you remove the omp. the omp get oil fed into it.

how would running the twins in sequential or non sequential affect how much room they take up?

yea the stock tranny bolts up

mazda_wes

iTrader: (6)

everyone has told me so far that the twins take up less room non-sequential than sequential. these are all FD guys though, so i guess that i can take that with a grain of salt.

i am going to premix just for the sake of the engine (don't want the OMP to either go out or just starve the engine in high boost). is there a specific place that i can find block-off plates? if not, i can fab some, but it might be just as worth it to buy them premade.

anything else that i am missing right now? please let me know if there is so that i don't run into surprises during the build.

*TOUCH*

iTrader: (29)

im not too up on my re-swaps, but i believe that like the 20b, its near impossible to run the stock twins. either way, you are already goin through alot to do the swap as it is, you might as well go all the way and strap a t-78 to that bitch!!!!

Turbo II Rotor

iTrader: (2)

First off, do you have 15 grand in the bank right now? If not don't even bother, just keep your TII.

FrankV702

iTrader: (14)

In a RE swap we did in a buddies car a few years ago, we kept the twins on (non sequential) and they fit, but the stock RE piping from the turbos to the IC sat up to high and we had to cut some of the under lining of the hood to get it to fit. The brackets were custom though so that may have played a role in that fitment issue.

I'm doin an 13B-RE swap in my vert now, and I plan on keeping the stock twins for a while.

TitaniumTT

Without a TON of cash for an aftermkt ECU, or the factory ECU, Japanese only FSM, Cosmo ECU and splicing the harnesses together, you are not going to get the twins to run sequentially. <- Period Do some research on the rich mans non-sequential mod and go that route for a while. Personally I think the turbo's are too damn small and are more than likely useless anyway. I know mine where and I think Turbo II's were as well (Right?) Regardless, maybe you should look into buying a used S5 turbo and mani and going single for a while.

Turbo II Rotor

iTrader: (2)

Yeah, I had to go with a GT40R to get it to breathe a little better. The stock twins are good for what, 240hp? I hope you don't plan to keep the stock exhaust sleeves or ports also.

TitaniumTT

240 or 225 was thier factory rated hp. The FD was 255 and those things have seen 350-370 RWHP regularily. I don't think that 300 is out of the question, but for how long Mine were junk when they arrived but I was never planning on using them so I didn't really care

Turbo II Rotor

iTrader: (2)

Found it, 230ps 217 torque.

http://cp_www.tripod.com/rotary/pg09.htm

mazda_wes

iTrader: (6)

alright, i will look at a single conversion before i drop in the motor. like i said before, i am planning on going with a stand-alone anyways, so i may as well get ready to start tuning for it now.

and don't worry about my bank account, i have enough to cover the swap. i also do my own work and have enough tools to break down a ******* battleship and put it back together. i am not just some kid jumping on here with my first car dreaming of what to do.

good advice so far, keep it coming if you have some more. like i said, i would rather hear all of the negative here and now before i turn a bolt.

TitaniumTT

Take your budget, and then double it

Rebuild the motor and swap exhaust sleeves

mazda_wes

iTrader: (6)

also, i have talked to an exhaust builder that is local. he has talked about a custom manifold and downpipe if i want to go after market with the turbo (which i am going to do now), so turbo fitment isn't an issue. i just don't want to build a custom manifold for the stock twins. the work will be more than the turbos are worth.

mazda_wes

iTrader: (6)

so, the exhaust sleeves are the weak point of the engine? i thought that engine breathed really well stock? either way, if that is the only real internal issue that i have to worry about, i will still do the swap.

Turbo II Rotor

iTrader: (2)

And port that bitch.

Turbo II Rotor

iTrader: (2)

The exhaust sleeves are restrictive. You can only remove them with the motor apart as they are held in by a roll pin on each side of the housing. TII sleeves are a direct swap. Also the intake ports on the inside of the engine are rather small but it has huge runners leading up to them. Port them.

mazda_wes

iTrader: (6)

so, exhaust sleeve swap and intake porting. i guess while i am in there, i will go ahead with some machine work and possibly dowel the housings if that has any effect on this motor. are gaskets and seals readily available for this motor? i always prefer to have all of the parts at hand even if i have to have someone else do the work. i just like to know that all of the parts are the correct parts before they go onto my motor.

Banzai-Racing

iTrader: (11)

Here is a complete swap, broken down into stages in pictures http://www.banzai-racing.com/br_projects_vert_pg5.htm

Here are some of the conversion parts you are going to need http://www.banzai-racing.com/products_cosmo.htm

katkaroto

can you somehow use the 13bt harness for the 13bre engine? or do you need to upgrade everything?

Banzai-Racing

iTrader: (11)

Yes the 13bt (or even the 13b N/A) harness can be used to operate the engine. We run the FD Apexi Power FC with our adapter harnesses with an S5 TII harness in our swap.

katkaroto

well... all that said and done... well it work with digital tuning's rtek S4 TII ecu? without that much fabrication....

mazda_wes

iTrader: (6)

awesome, thanks for tons of info.

i guess that i will go ahead and ask, will megasquirt support this motor?

ivegonemad

go single from start!!! we need more re guys around here, and get a borg warner s480!!

what are you planning to use the car for?

ill just get a standalone why bother splicing and dicing harnesses, seems a bit redundant to me though...

ivegonemad

better! lol...or dont run no sleeves at all!!

Banzai-Racing

iTrader: (11)

Basically anything that can run a 13BT can run a 13B-RE. There is nothing super special about the engine, it even comes stock with 550 primaries and secondaries, the CAS is the same with exception to the connector. The TPS is similar to the FD, but we have a write-up on our website for wiring it in. However, with this said, cutting corners on the engine management is not the correct way to enter into this project.