KnightSports Super U Type II - Twin-Core Intercooler.
 

Hello I was interested in getting this intercooler and I believe it will fit with my Autoexe Carbon Intake but was wondering if anyone was using this intercooler and had pictures of it installed or before the kit was installed.

How do you like this system on your car as well? Tried to search but no posts about anyone using this unit. Thanks guys!

http://www.rhdjapan.com/knight-sport...d3s-rx-7-60128

I love that intercooler; I wish I could afford it. :(

Thats funny they show two pictures and one of them is the Greddy. I really need to see what this kit looks like on the car and before Im hoping.

Hope this helps...

https://www.rx7club.com/attachment.p...1&d=1268223322

https://www.rx7club.com/attachment.p...1&d=1268223322

https://www.rx7club.com/attachment.p...1&d=1268223322

I'm intrigued. . .would like to see "installed" pictures also. I wonder how it would do on a BNR stage 3 setup @ around 350 RWHP?

ya i'd love to see installed pics. seeing as that's the size of one of my side mounts for my 300zx i wonder how much it actually cools the air.

I see the benefits of it's compact design for tight spaces however, I can't see it being too efficent at actually removing heat from the charge air. The #1 main thing that makes heat exchangers (radiators, intercoolers, oil coolers) do their primary job is how much volume of air you can get to pass through the core at any given moment. The more air that passes through it the better it works. The main problem I see with this design is it's thickness. I know it's split in the middle but the air still has to travel through both cores. To make matters worse the air will be heated my the 1st core and then it has to pass through the 2nd core. Not good for efficency. Also air (like all other moving objects) will always take the path of least resistence. This set-up will have even more pressure build up in front of the core (compared to stock) so the ducting has to be perfect so the air actually passes through and doesn't leak around. I'm also curoious about the potential pressure drop.


Edit: Now I can really see modifying this for a water to air set-up. That would be perfect since ducting wouldn't matter. ;)

That says "mad pressure drop" to me.

seems small, maybe only like 20% better than stock?

i used to love that IC... but now when I see it... it just spells "HEAT SOAK"

i would invest that $ on a vmount setup. more work but similar price and much better for the long run

Thank you so very much Eiji! Now I can really see what it looks like much better! What are your plans for this unit? How about selling it to me? hehe

Here is some more information about the unit. It actually does a pretty good job for removing heat and the fact that it uses two cores the way it does, makes pressure drop much less according to Knightsport.

You can also see the picture better on this link if you look for the cooler.

http://www.knightsports.com.au/FD3S.html

It looks intriguing to me.

Does anyone have any experience with this intercooler?

How good does it actually work?

Its not my cooler unfortunately!

I might be able to dig up some installed pics later if I remember.

i wonder how much gains are being made from 2 cores instead of 1 thick core.

fighters garage has a prototype of an FD intercooler that does a "U" style pass, but the design is different. not sure if they are going to be made though.

It doesn't look like it would work too great. Anyone have any test results against similar size SMIC kits like Greddy, Pettit Coolcharge or SR Motorsports?

Thanks for the mention of the shop. I bought a pressure tester from them. To bad they don't have some info on that cooler thought?

This cooler is mainly for the person that wants to fit in the stock location but have a better then stock core and performance. Since it is a twin core it would have less pressure drop then a large single core. The best full bay cooler if you had to choisce one would be the the Pettit Cool Charge III but you need to move the battery plus run open engine bay filters.

With this IC I think I can use it with my Autoexe carbon cold air intake. I know the Greddy IC will also work with it as well.

Better late than never right?

Enjoy.

https://www.rx7club.com/attachment.p...1&d=1269514188

https://www.rx7club.com/attachment.p...1&d=1269514076

Great! It looks like one is with the Autoexe intake box and the other is the Knightsport intake box.

Wow, this Knight Sports SMIC is very nice.... will it fit stock air box?

Not sure how two little cores with a couple of tight u-bends is going to have less pressure drop than a single core... never mind that the "2nd" core is going to have air flowing through it that has already been heated by exchanging heat from the "1st" core. When I spoke w/ Bell Intercoolers about my custom core, they told me that a thicker core will have less pressure drop than a thin one.

I could see this only as an option for if someone HAS to fit it into the stock space for some reason.

Sorry to bring up an old thread, but has there been more testing of this? Maybe compared to other SMIC's available, like the Greddy one.
I'm in the middle of deciding which SMIC to choose, so I wanna make sure I get the right one.
Looks very nice though.

The KS smic core is significantly bigger than the greddy/trust and even the blitz smic. Aesthetically speaking I am not a fan of the welds but I know a lot of fd owners in Japan use this in their single turbo setup without issues.

I think the Knightsports SMIC is also bigger than the RE-Amemiya SMIC.......

It may be the largest SMIC you can fit with the stock batter/intake.

What are the length, width and height dimensions of the two cores? Besides the fact that the back core will be slightly less effective due to air flow and air temp (as already pointed out), this seems like a nice design for cramming a large core (in total size) in a small space. Maybe a fan can overcome the inefficiencies of the back core and make this one of the best 'compact' SMICs out there.

No one seems to get that the real limitation of the stock mount intercooler is the stock duct. A finite amount of air can enter the duct, and at some point having a larger core simply will not help.

Core efficiency is much more important than core size in a stock mount set up, IMHO.

All the air in the KS cooler sees both cores. The rear core is the first in-line and cools the charge with waste air from the first core. The front core is the last in-line and cools the charge with ducted air from the front bumper. This design is more efficient, in regard to cooling, than the other single core designs.

I would estimate it is twice the volume and SA of the stock unit.
I wouldn't hold my breath for measurements of an obscure JDM stock mount intercooler.

A bit of a thread revival here but has anyone used the greddy hard piping kit with this inter cooler, is there any fitment issues at all?

Trust GReddy Compression Tube & Hard Piping Kit FD3S 13B-REW - RHDJapan

This unit seems to be the best SMIC hands down for those that don't want to have to relocate the battery and/or get rid of the stock airbox (or similar styled cold air system like Knight Sports or Autoexe intakes). Surely the design is quite efficient with the air from the turbos going through the back core first (which is cooled by the waste air from the front core) and then the air travels through the front core which is getting directly cooled from the front bumper via the custom duct, which I understand is basically a fully sealed stock duct with a bit of an extension to reach the new intercooler.

It's a shame that these are about $1,400-$1,600 from Japan before customs charges. If I ever find this intercooler for a good price second hand it will be next on my list to replace the stock intercooler on my car right now.

I will paint it black though and use black silicone hoses to keep the car looking stock.

Hi
If your looking for a quality u type intercooler .
This is far the best I've seen out of all the smic .

Quality tig welds
Good for 20 psi 8500 rpm stable temps
Carbon ducting for good air flow to cooler

Great smic cooler

That is the ARD intercooler from Australia right? Didn't they only do a small production run of like 20 of them and they were quite expensive at AUD 2,200 if I recall. However, I agree with you that it is a very nice unit.

Yes , they are ards , but I heard that he has released a new batch of 40 sets that are more improved ,

Larger carbon duct
Larger tube and fin cores 88mm

I've been told they will be released in the next few weeks
I can't wait , and yes I think they are around $2200 , I see it's a
Good buy for the USA our dollar is low at the moment .

I wonder how the intercooler shroud interplays with the stock intake duct. The opening for the intake duct is already pretty small behind the license plate area although it is a natural high pressure area so air gets their no matter what.

99 spec intake and intercooler ducting is 1.8x larger than before (mostly due to the front bumper change).

http://www.rx7.net.nz/vent.JPG

The intake duct has its own path of air flow on the series 8 model, the intercooler duct is seperate to intake duct it's clear on your picture .

The ARD carbon duct for cooler is larger to provide max air flow to u type cooler for best efficiency.

The early series series 6. ,7 use the same intercooler duct for the intake and intercooler which was removed on the series 8 model , the intercooler duct is the same size on 6,7,8 .

The ARD cooler is best used with autoexe intake kit . and on the earlier models series 6,7 u need to upgraded to series8 bumper and plastic reinforcement to allow for air to flow air to the autoexe carbon intake.

End of the day the ARD cooler in the best for street car making from stock twins with 210rwkws on 13psi and up to 320rwkw running the sp Bathurst twins 18psi on pump fuel , looks legal and undercover no hassles from the cops , price is in accordance to RND and premium workmanship .

And the upgrade are bolts on no need to fabricate anything , do it yourself .

Thanks for that. I have to agree that the Knight Sports or ARD SMICs are the best on the market in terms of stock location. Wouldn't the Knight Sports intake be slightly better than the Autoexe intake because of the design right at the tip of the bumper? The autoexe is open for some reason whereas the Knight Sports seeks to extract cold air from behind the license plate just like the stock intake does.

Knight Sports Intake and Knight Sports SMIC

https://www.rx7club.com/attachments/...e-img_9613.jpg



Stock Intake on Series 8 (never mind the letters)

Attachment 752962




Still, I can't see that the Autoexe or the Knight Sports offer much gain over the stock intake system as it's quite well designed and these aftermarket systems are ridiculously expensive for what they are. The only benefits the Autoexe and Knight Sports seem to have are the use of a cone filter as opposed to a panel filter but the stock Mazda filter flows quite well and if concerned a K&N drop-in could maybe net an additional 1-2 hp.

Your thoughts?

Standard intake on series 8 is ok if u want to run standard boost , but when u run 15psi on the stock twin u find the tune requires a little more fuel on the map , and also the car is more responsive .

But the big advatage when using autoexe is when u run the Bathurst sp twin upgrade by ARD on 18 psi, the autoexe provides the extra air flow needed at this boost level.

The standard airbox restriction is the opening not the panel filter .

U need a set of the Bathurst sp twins factory fit ,
larger AR compressor covers
Larger 5 blade compressor
Larger turbine
Oem high pressure actuators 0.85bar
All parts designed and made by hitachi engineers special request by ARD .

I see. So you are saying the restriction is the opening that connects to the air guide itself:


https://cimg7.ibsrv.net/gimg/www.rx7...9283ac22b4.jpg



I'm still not sure how the Autoexe would be better than the Knight Sports one though due to the way they connect to the front license plate area. Either way, I'm sure the difference is negligible between the two and to be honest the cost is just ridiculous when you think about it.

I'm running 280ps twins at 0.85 bar (about 12.3 psi) at the moment on the stock airbox and stock intercooler with a 250cc/min nozzle for water injection post intercooler, but I could imagine the desire and/or requirement to upgrade the airbox and the intercooler if you are trying to run more than 1.0 bar on twins (14 psi or more). Although factory twins probably wouldn't last very long at that level of boost.

Water injection works but it a hassle , always requiring to refill water reservoir .

No reliablity problems Running the 280ps twins at 15psi .

As long as u have a good flowing exhaust system , run good quality re synthetic oil and change the oil every 3000 km .
And get rid of water injection and put a u type intercooler
And fit Apexi pfc and get a good tune .
460 l walbro fuel pump
Hks la Twin plate or single
Autoexe intake

Should make 240 rwkw(320rwhp) maybe more
Enjoy good street setup

m2 intake is good too, if you can wait for one to come up FS in classifieds. Usually about $4-500US.

I thought in Japan they typically limit 280ps twins to 0.9 bar (13 psi) if you want them to last a normal length of time?

That is a large reason that I tuned for 0.85 bar (12.5 psi) rather than go any higher (plus I know the stock intercooler is probably not too efficient at much higher boost pressure).

Water injection hasn't been too bad for me yet. I use the front washer reservoir and the water is boost activated after 7 psi and I only need to refill the reservoir with distilled water after half of a track day (i.e. 3-4 20 minute sessions). On the street I don't even worry about whether it is filled up since I run so little water anyway and the stock system is just fine for a couple of WOT pulls. My tune isn't dependent on the water as it is only used as a safety net.

The M2 is almost impossible to find in time and get shipped to the UK but in any case isn't it too large to allow the stock airbox and battery to be used?

M2 intercooler will_not_fit with stock inbox/battery.
M2 intake will_fit with stock intercooler/batter.

I actually just posted a Knightsport Super-U Intercooler over in the For Sale section:
https://www.rx7club.com/3rd-generati...-smic-1096989/


...there also happens to be a M2 Carbon Intake listed currently. It's like the planets are aligning! :lol:

Comparison between Knightsports and RE-A if anyone is interested

sounds amazing!


what is the ARD website address?

cib24, that photo you posted on #38 is NOT Knightsports Intake & Knightsports SMIC.
It is the ultra rare Mazdaspeed CF intake box. And GReddy SMIC.

OK. Google failed me on that search then.

To the other poster, I don't think ARD has a website and the person named ARD is not thought of too fondly on the Australian FD RX-7 site.

info@fdmotorsports.com.au


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