Mazdabation

iTrader: (9)

With the installation of the GReddy SMIC what other parts would normally be included in the kit?

I have just the IC, so is there a duct or do you just use the stock plastic one that goes along the front nose?

IC..
hard pipes..
duct?
anything else?

compuskills

I just got one of those recently and downloaded the instructions here:

http://www.clubrx.org/media/GreddySMICDocs.pdf

Thanks Dale...

Mazdabation

iTrader: (9)

thanx for that, so ity looks like i am missing the aluminum duct and some kind of rubber wind deflector.

compuskills

Yeah aluminum duct and rubber part to patch the hole in the stock duct.

Gen2n3

iTrader: (1)

are you using the stock elbow or something different...like greddy elbow?

Kento

The parts given to fashion a "duct" for the Greddy SMIC are basically a joke. You will have to either fabricate one yourself, or try to obtain a Pettit or similar duct that will fit.

moconnor

iTrader: (14)

Pettit are now selling their duct again. It is $120 or so. I would imagine that this intercooler with its metal 'duct' performs worse than the stock intercooler with the stock duct.

Mazdabation

iTrader: (9)

Oh ok so the duct that would come with the GReddy IC is crap? Does the Pettit one have a different design to it for flow? I have not seen one to compare........

moconnor

iTrader: (14)

Here is picture of the Pettit duct installed in my car:



I added the sealing foam myself. The quality of this duct is reasonable (though nowhere near as good as the M2/ASP duct) and fitment is decent. You can modify the stock duct to work with the Greddy, but coverage will be poor.

Mazdabation

iTrader: (9)

Are you able to put the stock plastic front cover back with that duct? It looks like it goes pretty high but its hard to tell.

What and how do you mean to modify the stock to work with the greddy? One of the reasons i like the greddy is becuase i can put the stock plastic piiece back on top of it to reatin a stock look

shawn

Mazdabation

iTrader: (9)

GReddy elbow

moconnor

iTrader: (14)

No. I have a Cheap Bastard intake so the stock cover would not be useful. At emissions testing time, I will just swap the stock IC back.

The stock duct is a lot lower - but that is going to cost you 1-2" (x intercooler width) of coverage. Obviously, that is a bad thing.

RX7LINK

iTrader: (3)

the greddy's aluminum piece is not a duct. its just the cover for the hole on top of the factory duct. Greddy uses the factory duct which is only about 2/3 height of the SMIC core, but its the same width. It covers the upper portion of the IC going towards the TB.


I wouldn't say using stock duct on greddy or other japanese tuner SMIC is a joke.. but definitly doesn't maximize the cooling efficiency of the IC

Mazdabation

iTrader: (9)

I too have a modified stock intake, i dont use the stock cover for working purpose, just to clean up the front and retain a stock "look".

Basically what i want to do is get best efficiancy out of the IC and still be able to bolt on the front plastic cover to keep the "stock look"

So can i do that by removing the stock duct and use the pettit ?? (put the cover back in place for looks)?

Mazdabation

iTrader: (9)

Thanks for clearing that up. I did think the aluminum piece was a full duct and not a cover.

I want to keep that front plastic piece for stock looking purposes, so should i stay with the stock duct and alum cover or go with the Pettit? I need to know if the front flat piece will still bea ble to lay over the front with the petit.

Kento

The aluminum cover is meant to be part of the "duct", because it is made to attach directly to both the SMIC and the bumper framework. The problem with just "covering the hole" is that the factory duct itself doesn't come anywhere close to the aluminum cover, leaving a major space in between for airflow to leak through (airflow always takes the path of least resistance, so instead of going through the IC core, it will leak out any open passages it can find). They would have been better off just providing a small plastic cover for the stock intake hole, which is a fraction of the size of the aluminum cover. Because the stock IC duct is made to attach to the stock IC (and the fact that the Greddy core is much thicker), you have to cut the stock duct in order for it to make any sort of fit, and even then, there are large spaces everywhere because of the ducting attachment to the stock IC, and due to the Greddy core's additional height. The "rubber mat" they provide is to "seal" the bottom portion of the duct (since the Greddy rides on top of the driver's side radiator fan motor due to its mounting and thicker core) is basically useless, because it's too thick, and there are major spaces everywhere other than just the bottom of the duct.
I wasn't saying that using the stock duct is a joke. I said that the parts Greddy provides to fashion a duct are a joke. Regardless, unless you properly seal the duct to any SMIC core, you're just wasting time and money with the installation, because the efficiency goes down the toilet with the airflow leakage.

moconnor

iTrader: (14)

I can check this evening, but I am pretty sure that the cover will not fit with the Pettit duct.

If you are determined to keep the cover, I would just sell the IC and put the stock one back. As per Kento's discussion, the stock duct with the Greddy is a joke. I would not be surprised if the stock IC with stock duct outperforms it.

Of course, if you close your hood you will have a stock look too even if the cover is not there.

93silverbullet

iTrader: (7)

I created my own duct using sheet alum. and a self adhesive thermal barrier covering the underside of the duct to ward off heat soaking the IC. I used a cardboard pattern to test the fit and finish before transferring the pattern in to aluminum. As you can see fit and finish are very good (if I say so myself) and dropped my intake temps by an average of 18 degrees (according to my PFC). I have more pictures if anyone is interested let me know.

compuskills

WOW,
Gotta love that

RX7LINK

iTrader: (3)

wow indeed. very nice

M104-AMG

iTrader: (8)

I used the Spec. 99 duct and air-box seperator with an SR Motorsports SMIC.

:-) neil

Mazdabation

iTrader: (9)

Could you give me some more input on this, you have a very nice set up and by the looks of it being top flat, i can put the stock flat plastic cover.

Better yet do you still have the dimentions or cardboard cut outs? Help a brother out hehe

moconnor

iTrader: (14)

I used a modified stock duct for a while with an SRM IC too and coverage was not noo bad. However, the Greddy is an inch wider and almost an inch taller than the SRM.

Mazdabation

iTrader: (9)

If you could that would be great, it doesnt have to fit perfectly, as long as it sits nicely and i can bolt it down and still close the hood

shawn

compuskills

Check post #10 in this thread, I guess it is possible to do what you want to do

https://www.rx7club.com/showthread.p...t=smic+install