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EJ22 Twin Turbo ECM Question


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6 replies to this topic

#1 myshoeisonfire

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Posted 11 May 2006 - 06:39 PM

Im woking on a transplant from a 2.0 twin turbo engine, but i dont have a computer! is there a way to use another system, like megasquirt? or am i better off using a stock ECM?

also, where can i get one? its bolting up to a manual transmission. Anyone got any thoughts? or maybe an ECM laying around?

-Dan
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#2 myshoeisonfire

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Posted 11 May 2006 - 07:24 PM

also, what car does the ej20tt go in? (2.0 twin turbo) is it one of thsoe ones thats overseas only?

#3 jamal

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Posted 12 May 2006 - 02:18 AM

some right hand drive legacies. Because the turbos and piping won't fit in a left hand drive car.

#4 Dr. RX

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Posted 12 May 2006 - 07:32 AM

First off, it is an EJ20TT, not a 22. Jamal is correct, they came in certain model Legacys (Libertys in Australia). Do you have the engine now??? Why do you want a twin turbo? Do you know why Subaru used two turbos on the Legacy?

#5 Jerry DeMoss

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Posted 12 May 2006 - 07:44 AM

Rather than go the twin turbo route.I would suggest just doing a larger single turbo.(easier to do)Less issues with space ect.I agree 2 turbos would be cool though.

#6 Dr. RX

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Posted 12 May 2006 - 01:27 PM

Rather than go the twin turbo route.I would suggest just doing a larger single turbo.(easier to do)Less issues with space ect.I agree 2 turbos would be cool though.

The two turbos on the Legacy are not for performance (as in more horse power) they are to spread the power over a larger RPM range. One turbo is a low RPM turbo the other is a high RPM turbo, on the older twin turbos there was a flat spot in between, but that was fixed on later models. A larger turbo will increase turbo lag between shifts. The whole thing is to over come the interia of the weight of the turbine and compressor wheels. Some of the newer ceramic and ball bear turbos are larger, yet less weight and spin more freely, but they are also way more expensive.

#7 blackbart

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Posted 14 May 2006 - 09:04 PM

I have an ECU from the ej20 twin turbo, if anyone is interested make a reasonable offer.




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