Have a question about jdm engine...

[98turbo]

Did they make a cyclone non-turbo? My friend has a 1g with a cyclone motor and it's non turbo. I think whoever had it before took the turbo off and made it a non-turbo b/c the intake look rigged on there.

 

[Quasimondo]

No, all Cyclone engines as far as I know were turbocharged and intercooled. It should say "Intercooled Turbo" right on top of the manifold.

 

[deusxmachina]

The engines themselves aren't any different from U.S. ones other than the cyclone intake manifold.

Yes, there are also non-turbo engines with a cyclone manifold. I can't picture it at the moment, but I think it looked like a U.S. turbo manifold except it says "cyclone." Nothing special at all other than having the name on it.

Turbo engines with a cyclone intake have the dual-runner cyclone intake like Quasi described.

 

[98turbo]

So, it's identical to our turbo motors, but if it doesn't say turbo and intercooler on it, then its a non-turbo?

 

[deusxmachina]

A turbo motor is a turbo motor. Other than very minor differences, if any, a 6-bolt is a 6-bolt and a 7-bolt is a 7-bolt. The main (only?) differences are the JDMs that got the dual-runner intake manifold (some say "cyclone turbo intercooler," some say "multi-port something or other"), compared to USDM ones having the simpler intake.

Dunno for non-turbos. I seriously doubt a JDM non-turbo would have turbo-motor pistons and things in it, so, same deal, a non-turbo is most likely a non-turbo, no matter what country it's built for, but the intakes and other minor things might be different.

There is definitely a USDM-like intake manifold that says "cyclone" on it that was on some non-turbo JDM Mitsubishis. Pretty rare. I think I've only seen two, not that I look for them. Your friend might have a turbo motor with the turbo taken off, or he could have a non-turbo but swapped the intake manifold. There would be no point in having a dual-runner intake on a non-turbo motor because a non-turbo motor would never make any boost to use the secondary runners.

Also, I think all Galant VR4 turbos got the "cyclone turbo intercooler" intake while some/most EVO's got the same-looking thing but says the "multi-whatever" on it. I think some EVO's also got a non-dual-runner intake, so not every turbo motor will necessarily have a dual-runner intake on it.

Clear as mud? Ok.