NZ_Legend

Oh man you got rid of the wing turbo? But that's unique to Honda... nothing else like it out there...

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Muffo

Is the intake after your throttle body on the c20at different to that of a non turbo it looks different in photos and is the throttle body mounted in a different possition? You have prity much summed up what i am going to do because i dont want to run either a wing turbo or the original intercooler as neither are good to make power. I am still having trouble with the seller of my turbo motor, i might have to get my money back and look at doing a custom set up. As for the turbo i was going to run the turbo that came with it but only to get the motor running in the car then i will talk with a performance shop to match a turbo that will run with the motor

legendturbo

Well if it falls through you are welcome to buy mine. Shipping to australia shouldn't be too horrible. The intake runners of the manifold should be about the same but I bet the plenum is smaller (bad) and the path is much more tortuous. The turbo throttle body is smaller and in a slightly different area. It is contained inside the manifold/intercooler setup whereas the non turbo TB is located before the manifold.

You don't need a turbo to run the engine. It is MAP based so the car will run with no turbo. So you can get it going and then take it down to a performance shop once it starts. I designed a T3 adaptor which will allow you to use any T3 flanged turbo (heaps of them) on the stock manifold. If they charge you more than $130 to do it they are ripping you off.

Unfortunately the wing turbo broke and would cost $1000 to have rebuilt as it would have to be custom since honda don't have parts for it. So I bought a $250 subaru turbo which was way more fun.

Muffo

y i ask is i am going to make a 2.7 turbo but im not sure which way to go wether to start with a c20at and get it bored to 2.7 or start with a 2.7 and use the turbo manifold from the c20at, mount the turbo, run it through a front mount then into the intake. the intake manifold and plenume as you said is different on yours and i am thinking there would be a reason for that. would the standard intake manifold be really that good for forced induction? Also if i use the turbo manifold and and a standard intake will there be room to run the pipes to a front mount and back into the throttle body? thanks for any help

legendturbo

Yes there will be room. Remember you can clock (change position) the compressor housing to face whatever direction you like. I had mine going to an air to air side mount with room to spare.

The turbo intake manifold is not very good since it had to accomodate the intercooler etc so yes it is crap get the non turbo one which will flow heaps better. If the c20at was run without a turbo I bet it would make far less power than a non turbo engine.

I would make sure that the c27 will mate up with c20 manifolds first. You may find that it doesn't. I am not convinced that you could bore a 2.0 to a 2.7 either. It is an open deck design and there is a real limit to how much material you can take off. You might find that a c25 has the same manifold pattern as the 2.0. I am not sure.

sam o nela

2.5 block has the same exhaust bolt pattern/stud location as a 2.7...just confirmed this with headers...

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Muffo

all the info that i have read seems to tell me that the 2.7 is still the same block as the 2.0 and was bored and stroked to make 2.7, wat i am saying would there be enough room with the non turbo manifold as the throttle body sits a lot further to the outside of the car possibly taking much of the space that the turbo on the c20at. thanks your help is much appreciated

Muffo

any idea about the 2.0 or any way of finding out?

sam o nela

I've never seen one in the flesh...so the only way really is to find someone that happens to have a c20 turbo in there possession and show us the manifold or the head

But somebody bought one recently and it is being shipped to them down under as we speak...

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Muffo

that wouldnt be me would it? the 1 from ebay. thats why I am trying to find out I am having so much trouble with the seller I am begining to think i might have to get my money back its been nearly 5 weeks and he still hasnt provided a booking number so im guessing he still hasnt delivered it to the shiping company

sam o nela

Uh oh...where was the item located again?

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Muffo

In canada it was ment to be shiped from monterial the guy has offered me my money back but i still want the motor so i will wait 2 week if nothing by then i will get a refund but then i have no motor and will have to do a custom turbo set up

legendturbo

Well here is mine anyway. Yes there should be enough room but it may be a squeeze. How much did you pay for it if you don't mind me asking? There were heaps of NA c20a's produced but mostly for the japanese market which is why there are heaps here in NZ. There should be a few in australia for you to check the port spacing of. Let me know if the spacing is the same. I cannot remember the cylinder bores between the 3 different engines but I thought it was way to much to have the same block.

Muffo

I payed 600 but i bort it as a 2.7 turbo so when it turned up if it wasnt 2.7 i would have made a ebay claim under significantly not as described to get some of the money back. the legend wasnt really popular here so parts are very hard to come buy let alone a c20 I found a guy that said he was importing 2.7 turbos but wanted 4500 with no computer or lume

legendturbo

Well PM me again if you need anything. I have a spare turbo ecu, tcu, fuel pump, and most other things. That engine has done 70,000km. As you can see the intercooler is located under where the red ignition leads cross the top of the engine. If you look at the last pic it shows the path the air takes, goes along the top, down left hand side, through IC, up through TB, and across the top underneath where the badge is and then seperates out to go to the cylinders.

The turbo's only came automatic but have a much beefier transmission to handle the sudden increase in torque.

sam o nela would you be able to measure the port width/height and distance between ports by any chance? Even just on a spare set of headers or whatever you have. It would be much appreciated and I could tell once and for all whether the 2.0L has the same spacings.