93 1g GSX ECU

[mach4g63t]

So, my engine is a 7-bolt... but it's dead. I got a 6-bolt ready to swap in that came with an ECU... I'm wonderinf if I have to use the ecu that came with the 6-bolt or is it the same as the 7-bolt? Is there a difference if I decide to actually use the JDM Cyclone Mani?

 

[Talesin]

Short version: Use your current ECU and sensors. Use your standard DSM intake manifold, the 'cyclone' thing honestly isn't worth the headache.

Long version:
You should be using the same sensors, so you'd be using your current ECU. Unless the ECU is a '90 or out of an automatic, it really shouldn't make a difference though ('90 had two pins swapped, automatics came with smaller injectors).

The cyclone manifold won't work properly with any of our ECUs, and won't work at all without the complete cyclone setup. Gains are minimal at best, anyway, and all at the low-end drivability end of the spectrum, while giving up some top-end due to added turbulence. If you have DSMLink, you can set it up to actuate the cyclone setup with one of your 'spare' outputs... there's an article on how to do it up on the DSMLink forums.
Given that our cars were never made in Japan, the 'jdm' engine you have is from another car entirely. Ours don't have the code, outputs, or other hardware neccessary to use the 'cyclone' setup, without a good bit of reworking. Honestly not worth the headache, as the stock US intake manifold isn't a bottleneck anyway until you start REALLY raising power.

 

[mach4g63t]

From what I've read on other threads regarding the cyclone... it's not bad if I were to just leave it on there and run around with it until I can get the setup that will make the butterflies actuate, right? From what I've been reading they're only closed under vacuum, so if nothing is hooked up to the actuator they should remain open and I could drive around on them until I can get either my ecu chipped (if possible, not even sure it's e-prom) or one of the other few ways it can be done?

 

[Talesin]

The problem with the cyclone is that while it gives you better low-end drivability, it also induces a LARGE amount of turbulence at the mid and top end as the airflow splits, then re-unifies to enter the intake port.. not to mention the turbulence caused by the butterflies. It might be slightly better for low-end around-town driving due to the better scavenging of a small runner at low flow values, but it'll be imposing a pretty big handicap on your top-end. You'll get the reduced power right off the bat, but will gain none of the minor low-end benefit until the complete setup is in place and properly actuated.

Again. It's REALLY not worth the headache. Just use your standard manifold, unless you want something on your car that'll ultimately make it slower.

Just because it runs at all doesn't mean it's running right.

 

[mach4g63t]

I want it for the reasons you cited, and I think it'll be a help in stuff like auto-x which I plan to use it for. When zig-zagging it up through a coned-off parking lot you're probably not gonna hit the top ends of your car's potential anyway. I'm not too much into drag racing so it's not that big a deal for me. I just wanted to confirm that I could leave the manifold on and use it as a daily driver (which is what I need the most right now) until I got it properly setup.

 

[Talesin]

Uh... no. If you're running AX, you're going to be driving toward the top end of every gear for quicker turbo spool and improved throttle response. You'll rarely be under 4300rpm (unless you miss a shift), which is when the butterflies actuate with the full setup. The cyclone will hurt your times, not help. It's meant to improve light-throttle daily driving, not enthusiast driving.

If all you really want is a part to show off to a girlfriend, or something that looks more interesting than the stock intake manifold at a car meet, by all means go for it. The only real reason people put them on is because we don't *have* them here, and they haven't actually done their research.

Simply put, they are a step down in performance from the manifolds we have. They are meant to make it easier for little ladies to drive Galants around, and not feel like the car is quite as sluggish before the turbo spools... but who rarely-to-never actually put the pedal down, or go over 5000 rpm. It is NOT a major gain to the low end.