Perry Gehenna

finally got my FMIC installed.
just thought that my fellow discerning connoisseurs of the FC3S might be interested...
One other thing, i removed as much dead wiring & sh*t as I could from my beast, and reduced its weight to 1120kg (2464lbs) which is quite light for an FC i gather. Could even lose another 10kg or more if i change the steel hood for an alloy one.
I thought i would experience *alot* of lag with the FMIC, but I can barely notice any difference at all! and by GOD are the AirTemps low!
I am very happy with this mod, even tho it cost me an arm and a leg.






Happy Yule,
Perry Gehenna

Santa is just an anagram of Satan.

Gene

iTrader: (1)

dude that is hardcore! What kit is that? Or is it custom fab? More importantly, where did you get that cover plate adapter for the throttle body side!?!? Inquiring minds want to know!

Gene

iTrader: (1)

hmm, is that the stock turbo in there? How's your lag with stock turbo and such a big IC?

Perry Gehenna

Yeah, it is all custom basically. There are no kits available over here in Oz.
the IC itself is from www.are.com.au
the core size is 500mm wide x 300mm high x 75mm thick (the HotChili type "c" in their catalogue)
the inlet was high, and the outlet was low, to force the charge-air to take the longest path across the core, maximizing its cooling efficiency, BUT,
the IC wouldn't fit in there with the 3" outlet low, so it had to be cut off, and re-welded back the other way, so now (as you can see) both inlet & outlet are high. Small point, but it annoyed me.

The throttle-body was modified by my rotary mechanic, to make the intake flow smoother. They welded a plate over the old inlet hole, and relocated the AirTemp sensor in it, whist placing a new inlet flange at a true right angle. Simple but effective.

The polishing was gratuitous, but sheer performance isn't everything. It has to look nice as well 'eh?

Looking to get 200-240rwKW at about 18psi or 19psi from my FC. Dunno what that is in HP.

Perry Gehenna

OK, the turbo i have is a Series5 RX7 turbo that is hi-flowed, and the compressor wheel has been changed to a T04 wheel.
there is a *smidge* more lag than b4, and i mean a mere smidge. I was pleasantly surprised.
One interesting thing, the mechanic who tuned my car for me after the FMIC install informed me that what little lag i was experiencing between gear changes was actually due to the BOV. I can't figure it out?
He said BOVs are ****, and not needed.
While I was there, there was a 465rwKW RX4, and it didn't have a BOV.

It just threw me a little, b/c as far as my understanding of turbo theory went, a BOV was there for to prevent lag, not cause it.

I emailed him and asked if he could explain it to me again, so i'll post his answer when he gets the time to reply to me. If he is churning out 465rwKW beasts, he MUST know what he is talking about!

Evil Aviator

Hehehe, my FMIC has two "low" inlets/outlets. Actually, you would probably get a hair more performance by feeding the end tanks from the top or bottom rather than the sides. A theoretically perfect FMIC is a great idea, but unfortunately it cannot possibly exist in reality. I see that you had to use a lot of piping bends, too. It looks great to me.

Yes, most people don't realize that "lag" is measured in tenths and hundredths of a second. Corky Bell says that no lag = no boost.

The purpose of the BOV is to eliminate turbo surging. Without the BOV, the closing throttle plate (when shifting gears, etc.) will cause a pressure buildup, which sends a reversion wave back to the turbo, causing surging and possibly damage. If you are running a lot of boost, the pressure buildup could also damage the throttle plate. Also, if you have an AFM, the BOV will recirculate the air back to the turbo inlet to retain your metered air so that the engine doesn't go rich when the throttle closes. Yes, you will notice more lag with a BOV because it vents all that pressure when the throttle closes, and when the throttle opens again the turbo needs to re-pressurize that big FMIC that you just installed. Putting the BOV by the throttle body like you did will help reduce the lag some, but I'm not sure if there is much else to be done to lessen the lag. I guess that you could disconnect the vacuum lead on your BOV and see how it runs, but I'm not sure that's such a good idea with 18-19 psi. Personally, I'd stick with what you have.

turboren

"Satan Claus is out there, and he's just gettin stronger every day..."
Reference, anyone?

Looks sweet. Like the weight reduction. I plan on doing the same to my 86, when it gets its donor motor, one of these days...

Ren

RX-7 GT

have any pics of the bumper on? i want to see a head on pic looks a little tall there..but oh well.

HWO

that thing looks f@#king huge for 50cm x 30cm.

the core i am using is 40cm x 30 cm, but i suppose with end tanks on it it'll take up all the left hand side of the car ( i am mounting it on the left hand side, to allow lotsa air to get to the radiator still)

will get some pics once i get around to installing and plumbing it in there

Felix Wankel

The Last Boy Scout

Nice FMIC. All those mods and still running the stock fan? Whats up with that?

Wicked7

Nice FMIC, how much did it set you back?

Perry Gehenna

Nah, that stock fan is getting turfed as soon as my mechanic opens for business again on the 7th. I am getting a 16" Davies,Craig Thermo fan installed and setup through the auxiliary window of my MicrotechMT8 ecu. If i *could* afford it, i would get a huge aluminium radiator to replace the stock S5 radiator i have ATM.

The IC itself cost $1000AU delivered to my door.
The IC piping & mounting, including the Turbosmart type2 BOV, cost about another $1000AU.
The operation was subsidized by the sale of the stock IC ($100) and my old HKS BOV ($100) so the whole lot cost me $1800AU,..so $900US.

I'll have the front nose on soon, i'll put some pic up of it.
I still have to get larger secondary injectors, just to be safe, and a malpassi fuel regulator. That should complete the fuel system, and make my power output safe.

what do you mean too tall? Can an IC be too tall? I tried to buy the best IC i could find, did i err in my selection? not that i see how that could be...bigger the better 'eh?
i also opted for a tube&fin core over a bar&plate core.
from what i read, even tho a bar&plate core is about 6%-8% more efficient at cooling, it is too restrictive, causing a greater pressure drop.
I don't like the concept of my turbo having to work harder for nothing.

rhubarb,
Perry Gehenna

---
Elvis Presley = Prey Less Evil.
Does that make Elvis Evil or Good? i can't decide...

RX7SV

I can't wait to see the car with the front bar on either.

You have to show them the interior as well. That is another unique touch.

Perry Gehenna

Hi James!
front bar on.
properly cut&polished.
install passenger seat.
Then i will take some photos. I like to think it is unique, as well as cool.
Even tho it's my car, i think it has turned out well. What's wrong with a Snow Camouflage & Black interior?

Santa, you fat red weirdo, if you exist, can you give me a roll cage, a t04E, a 45mm external wastegate, a rebuilt 20B, a full SS twin 3" system, Tein coilovers. That should do for now!

FEARED7

The comment your tuner made on the bypass valve is totally wrong! With a manual transmission car with a turbo (unless it is ballbearing), you have to have a bypass valve hands down. If it was an automatic trans, it isn't manditory. I have seen too many turbos that shell the thrust out of them by surging. That chu chu sound the turbo makes at close throttle means the compressor is spinning one way 100,000+ RPM then all of a sudden, it is trying to turn the other way! then it takes the thrust out! It is turbo detonation, but the turbo can take a bit of it before it destroys itself! Anyway, that just caught my attention!

Later on,
Bryan

FEARED7

Intercooler, looks awesome! Did a good clean install.
Bryan

Perry Gehenna

yeah, i am happy with it!
i thought i was going to have to remove the collision bar to mount the IC right up the front, as it would fit nowhere else. But my mechanic has done a very good job of squeezing it in back there, and making it look like it wa "meant to be".
I can now reinstall the front collision bar, retaining the front chassis rigidity that it provided, as well as the protection from frontal impact that it affords.
Chuffed

Altho there are plenty of bends, they are all mandrel, and all SS.
I just wish i had a T04e turbo and 45mm external wastegate rather than the stock hiflo S5 hybrid of dubious performance capacity.

So long as I am safely producing 200+rwKW i am happy.

LORD OF THE RINGS TOMORROW MORNING!!!!!

RX7SV

I agree. I can't wait to see it all finished and back together. Then we call all go for a cruise.

Perry Gehenna

Things looking good.
Seen LOTR.
Have all the toys.
Front bar is on thanx to Brad.
Vermont Cruise 2nite.

Prepare to be whipped by the Purple People Eater!

Perry Gehenna