Please help with Cyclone

[Cesar]

the dual runner mani isn't the greatest for top end...

http://www.wideopenwest.com/~ksmith3289/faq/cyclone/gvr4cyclone.html

 

[ballagsx]

does any one know under what conditions the japanese computer opens the valves at. couldnt it be a combonation of rpm and boost or boost and throtle position. something like that?

 

[slow_one_eight]

I recently replaced the engine in my 92 laser, but it's different than what I expected. Instead of being the same one-eight I had originally, the valve cover looked different and had a small cyclone badge. It too was a one-eight, and everything bolted up perfectly. I originally thought a cyclone was strictly a 2.0 turbo motor. What exactly is different from my previous motor?

 

[top_end95]

Originally posted by slow_one_eight
What exactly is different from my previous motor?

The valve-cover.



If you actually took the time to search, you would have found out that there isn't a "Cyclone" engine, just a Cyclone intake manifold that has dual runners (short/long).

 

[paranoidTSi]

The cyclone intake is supposed to help bottom -end, but the benefits are barely even noticeable.

 

[tkre420]

On my intake manifold...there is a hole...it was covered before now is showing and leaking pressure to my exhaust and my car is running bad and the boost is leaking with it to b/c i feel it at about 5k rmps need help asap

 

[qwall]

huh? Where's the hole?

 

[Defiant]

Maybe...... plug the hole?

 

[00 Agent]

Ok guys, you're saying the ONLY difference between the US and cyclone engines is the intake manifold? How is it then that the cyclone motor is rated at 220hp and the US @ 210hp? The intake manifold does not add any top-end horsepower, so where's that additional power coming from? Everything I've read says the cyclone motor has 8.5:1 pistons instead of the US 7.8:1 and the cyclone head has bigger intake ports.

 

[Mo-Bo0st]

Ok guys, you're saying the ONLY difference between the US and cyclone engines is the intake manifold? How is it then that the cyclone motor is rated at 220hp and the US @ 210hp? The intake manifold does not add any top-end horsepower, so where's that additional power coming from? Everything I've read says the cyclone motor has 8.5:1 pistons instead of the US 7.8:1 and the cyclone head has bigger intake ports.

First off you quoted US horsepower numbers from a 2g and then you quoted compression ratio from a us 1g.

US 2g's had 210hp and 8.5:1 compression.

As far as the extra power...that could be contributed to the fact that some JDM motors came with larger injectors and a 16g turbo...you would know this had you bothered to read the other posts.

 

[92tsifwd]

Hey guys, its been alot longer than two weeks. I said I would let you know how my jdm motor is.

* * * * *


Just thought I'd let you know about the situation.

Jase Dogg

With apologies and sympathies, this constitutes a vendor bash. Not allowed here. Please put it on http://goodguybadguy.org

Sorry about your poor luck.

Thread also closed for meandering.

 

[Daem0n]

I have been told by numerous people, and reputable mitsu graveyard sources state, that putting a JDM 1g Cyclone engine in a 2g body isn't possible, because of the thousands of dollars in parts and mounts for the motor that are needed to do the swap.

However, here's someone who managed to do it.

Is this swap possible? or is it more practical than everyone thinks? And would it be unrealistically expensve?

 

[heavyD]

That doesn't look like a cyclone manifold on that link. The cyclone intakes say "cyclone" on them. Looks like a plain old 6-bolt swap. The manifold looks just like a normal 1G intake.

BTW: It's not worth the hassle to try to get a cyclone manifold to work as you need a jdm ecu also. The normal 1G intake manifold is an upgrade on a 2G one in the first place.

 

[Daem0n]

Wow. I feel like a moron.

Sorry everyone.

 

[RuBiCaNT5X]

That doesn't look like a cyclone manifold on that link. The cyclone intakes say "cyclone" on them.

Not true, the intake on the GVR4 is a cyclone but the plenum looks exactly like a 1G intake.

 

[EclipseOwner95]

I have a JDM 6bolt in my 1g, i didnt use the cyclone intake for the sheer reason i wanted to keep my A/C , but its not really hard to make work, u just have to have the butterfly actuator, which i had, but i wanted my a/c, it dosnt always say cyclone on it, mine just said Turbo Intercooled EFI or wahtever, but it had the extra runners on them. the main problem with it is that the compressor dosnt bolt up to the back of the jdm intake mani because its bulkyier.

 

[nanokpsi]

Yes it works. A shop here in town has done several. I don't know if the cyclone intakes are "active" but a couple of cars run them on their jdm motor. The shop will do the swap for me for $600 if I buy the jdm motor fro them (13-1400). I am probably going this route as all of the six bolt "kits" are expensive.

 

[Gen2Eclipse]

yeah it does work. My friend here has one in his 98 GS-T

 

[RuBiCaNT5X]

I guess on the 1G's you have to get rid of your AC, not on my 2G however... Let me know if you want to see pics of it with the T25 actuator mounted on it..

 

[clipise]

u dont need to have the JDM ECU to have the cyclone intake manifold to work. u just have to bleed a vaccum, which all i know is my friend works for AMS and hes hooking up a cyclone intake manifold to my car w/ my stock U.S ECU. i could get more info for u about it, hes the one who told me.




john

 

[RuBiCaNT5X]

u dont need to have the JDM ECU to have the cyclone intake manifold to work. u just have to bleed a vaccum, which all i know is my friend works for AMS and hes hooking up a cyclone intake manifold to my car w/ my stock U.S ECU. i could get more info for u about it, hes the one who told me.




john

I have mine hooked up the non-electronic way also... Works pretty good from what I can tell...

 

[92awd6bolt]

My cyclone is from a gvr4 so it's got the 510cc injectors but i still have my original ecu so am i even gaining anything from my large injectors?

 

[00 Agent]

Yes. If you do indeed have 510cc injectors and stock fuel control, you're gaining extremely rich A/F ratios!

 

[heavyD]

That means that the engine came with a 16G instead of the 14B. Congrats!

 

[killab443]

When usingthe cyclone manifold when is the best to to have the runners switch over..Also Which runner is for low rpm? I want to activate the runners by an rpm switch. Just wondering at what rpm the jdm ecu uses the 2nd set. does anyone use the jdm cyclone manifold with the jdm ecu?