Ok so maybe the cut job isn't that badass, but here is what I rigged up. I just went standalone (Zeal Megasquirt) so I removed the AFM and did the whole cut up Prelude intake. The difference between my setup and others is that I completely retained the stock intake hose so I wouldn't have to worry about the BAC and all the other BS. My friend helped me cut the whole in the fenderwall using an angle grinder, which doesn't make the cleanest cut but gets the job done.

I used some Thermo-Tec heat tape to insulate the piping through much of the engine bay (didn't use it on every inch of piping though). It would be possible to keep the stock intake hose if you are still running the MAF, but it would be harder because there isn't too much room.

 

172rwp n/a, nice...

 

^that was on the old intake and stock ECU w/ SAFC. I'm shooting for 190rwhp on the megasquirt. Tuning is going down next week...

 

whats the porting like, aux ports functional, post dyno results ^_^

 

I congratulate you cause you used the stock intake tube with another rubber or plastic piece and not a metal tube this one may actually help and not hurt you I hope the guy in the other CAI thread see's this

 

I can vouch for his car... Seen it in person several times and it's one of the nicest S4 GTU's out there... SUPER clean and well done...

 

i had the same set up on my old N/A, i loved it. i actually kept some of the stock brake ducting behind the bumper and just cut alot of it away so the intake would sit down in it and i did run my AFM, my hole was a larger diameter than the pipe so if the engine and intake vibrated it wouldnt tear up the pipe or anything, the pics make your hole look too small for the pipe but i think it might just be the pics you know. good job.

 

You know, I didn't think about engine vibration. I just hope this thing doesn't make a rattling noise or something when idling... the car vibrates decently with the exhaust and everything. I should be starting the car today or tomorrow, but I won't drive it really until I take it to get tuned right now. It's pig rich on the Zeal Megasquirt basemap even in round-town cruising.

I am posting my dyno sheet from my 172rwhp pull a year ago. This was with stock ECU, auxilary ports wired open, ignition breakup, CAS advanced too far (which the stock ECU didn't like and made it run a bit lean), and the old intake. Motor has about 18k on it, rebuilt by previous owner in his garage (Smoken' on this forum), and it's some kind of mild street port, I think Mazdatrix.

 

Don't hit any puddles.

 

He'll be fine.

 

FREE WATER INJECTION!!

The intake is in front of the front wheel, I don't see how hitting a regular puddle would cause a problem. Driving through a puddle thats too deep though, that could cause an issue. But for water that deep there has to be some flooding, or a small lake pothole. Neither of which any of our cars should be driven through anyway.

 

There's a water treatment that involves shoving a gallon of water into the engine and letting it burn it off. Just keep that in mind...

 

I've never heard of anyone hydrolocking a rotary. I'm not saying that it's not possible, just that it doesn't seem common enough to worry about

 

Ray, I knew people would start with the water thing. Its in the exact same place as mine ( looks good) don't worry about water I have had no problems in the few years iI have had mine.

 

Wow, peak torque at 6k. The way that thing keeps power all the way up, it looks like more than just the conservative mazdatrix port. Although I don't know what my dyno sheet would have looked like. It might be even higher up.
To be fair, that gallon isn't shoved in all at once, but over an extended period of time sucking it though a vacuum hose.

 

Yeah, I've seen that its a water treatment method but it doesn't just shove a gallon in right away it runs through it over the course of a few minutes.
If you quickly shove a gallon of water into your intake the engine is not gonna be happy.

 

Yeah, but it's not like going through a puddle is going to shove a gallon into your engine.

It was an exaggeration...

 

You do realize that I said a normal puddle would be no issue with this CAI. I said he would have issues in the event of floodwaters and massive flooded potholes... I'm on your side bro!

 

Yeah. I was responding to Buckwild.

 

Realistically the only thing that normal puddles will do is wet the filter element making it less efficient. If it gets wet and dirty enough, then it will negate any positive effects of having a CAI in the first place.

Clean the filter often and you will be fine.

 

I hope you don't use your brakes often.......blocking the Brake cooling ducts doesn't seem like a good idea to me........

 

I've always wondered about that.^ I'm going to try to find somewhere else to route it one of these days once the car is running again. Thats one of my many projects.

 

If you look at one of the pics, I did clear out the washer bottle and a ton of other **** that blocks airflow to the brakes, so I'm hoping that will make up for it. It should be ok.

 

ummmmmmmmmmm................what? I'm not sure about that one......... The things you mention don't block the brake ducts.........why would they???

 

^ on second thought, you're right. Removing the washer bottle and some plastic trim will have little to no effect on airflow to the brakes. An air filter is still a permeable substance though. It's not a solid sheet of metal or plastic completely deflecting air (although there is some piping down there as well).