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iTrader: (7)

Calling out the FB 13bt guys for a question on FMIC piping.

I'm in the middle of my s5 TII swap and I'm trying to gauge how I want to run intercooler piping for an FMIC. I was wondering if anyone could post pictures or kind of steer me in the right direction as to what works well regarding sizing of an intercooler, piping sizes, and where to buy a decent kit that would work well for this type of application since their obviously is no kit made specifically for this type of swap.

Thanks,
Ian

RotaryRevn

Ill try to get you a couple pics of mine tomorrow. I just made my own using a few 90 degree silicone elbows, one 45 degree (i think ) pipe coming off of the turbo, and one straight pipe on the cold side.

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iTrader: (7)

Thanks, I'd really appreciate it.

Jeezus

iTrader: (4)

No "kits" are available for our RX7. Your best bet is to Ebay some intercooler piping. 2.5" is fine unless you are running a turbo the size of the Death Star.

You can go in and out on one side of the engine bay, or relocate your battery and go in one side and out the other.

mikeric

iTrader: (20)

It is quite simple really:

a.) Relocate your battery behind the passenger seat
b.) Buy and NPR intercooler ($100 or ebay or this forum) as they are an OEM item and very reliable and good quality
c.) Buy ebay or other piping
d.) Buy a Greddy or other elbow to attach to the throttle body

The NPR intercooler fits PERFECTLY above the SE oil cooler (which you should be running anyway). Measure where the pipes would need to go through on the radiator support and cut it out with a dremel tool.

I can go take some pictures this weekend since I will be working on my car.

3rd and final 7

iTrader: (9)

i went the cheap route i got some abs plastic pipes frome home depot and got 2 elbows from a turbo volvo along with my volvo intercooler, works really well. its a cheap alternative until i can get my welding tank and regulator filled and bought so i can tweak my starion intercooler. then again i also have a mariah front airdamn on mine also.

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iTrader: (7)

Pictures would be greatly appreciated.


I understand generally what I'm doing, and since I'm using the stock s5 turbo for now, I'm going to stick with 2.5 piping and was looking at the ebay kits as a viable option. I guess I was asking because I'm trying to go about this in an affordable fashion since I don't need a specifically fit kit for an FC FMIC.

In regards to the SE Oil Cooler, I'm actually mounting my s5 FMOC that came with my engine, since my FB is originally a beehive model. Would it have any fitment issues with that NPR intercooler?

And my last question, where can I buy a decent aftermarket TB inlet that will work with an s5 TB (from what i understood, the Greddy elbow only works with FD UIM's and TB's) Just a straight off the TB hat would be fine, but I don't want to buy a $400 kit for just the hat and have to cut up tons of piping to make it work.

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iTrader: (7)

I just searched for "NPR intercooler" on Ebay, is it from an isuzu truck?

I'm curious to see how that fits in front of the radiator.

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iTrader: (1)

Here's what I have. I can take more pictures tomorrow if needed

RotaryRevn

Sorry man, I got busy today and didn't have time to take pics. I won't be near my car again for about 3 more days, I'll try to get the pics then. I'll also check my photobucket, I might have some old pics on there. If so, I'll post them in about an hour.

mikeric

iTrader: (20)

Yes NPR is the Isuzu truck and that is why they are great quality and I have never heard of one cracking. Generally speaking OEM parts are well tested and good quality compared to lots of cheap aftermarket parts. I believe that the NPR is a 2.5 inlet and outlet so it should be perfect for your setup.

I am unsure of the FC oil cooler dimentions, so I can't specificly speak to that. but I do not see why it couldn't work.

The Greddy elbow has been discontinued for FC's so you have to buy one used. brouse ebay and the FC parts section, they are always for sale. I got mine in the FC section for $80 shipped. Yes, you can make a more "ghetto" setup, but the elbow is nice and has the proper turn radius.

I will take some pictures on Sunday when I work on my car. I'm currently working and traveling so I can't just take some. It looks very similiar to the pics posted above--just not as clean. The pigges difference is that the above poster removed the radiator supports, and made hisown brackets. My intercooler pipes are just like his, except that the stock support was retained and a hole was cut for the pipes. KDR actually did the job, and it is very clean.

With the setup I have, the engine runs very cool as all of the air is forced through the radiator. I acutaully had to buy an aftermarket water temp gauge as I did not trust the stock one as it stayed on cool and I never knew when my engine was warmed up.

I found a couple pics even though I have changed out some of the piping since then and put the BOV on the other side.

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iTrader: (1)

It's an SA but you get the point

Dan_s_young

iTrader: (1)

I am using an adapter to go from a S5 TII lower intake manifold to a series 6 upper intake manifold. So I am using a FD throttle body and FD greddy elbow as well. My intercooler is 3" in/out, and all the piping is 3".

mikeric

iTrader: (20)

Nice! have you seen any performance improvements with the FD TB and elbow? Where did you get the adapter from? Any issues with this setup? Would you say it was worth the time and trouble?

Thanks!

Percentage

iTrader: (7)

Thanks for the pictures Dan, I've seen your widebody around on the boards some and I'm a big fan of your work.

From what I understand the FD UIM and TB does provide better performance, but I don't have much knowledge other than the basic searches on the forums I did. For me, I feel like it will be slightly overkill since I don't plan on getting a turbo any bigger than a hybrid stage 1. However, it looks really nice Dan.

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iTrader: (7)

Mikeric,

What size inlet is the greddy elbow? it looks like you have 2.5" piping up until the straight pipe that goes to the greddy elbow, then it looks like its 3"?

manny6d9

iTrader: (14)

The greddy elbow is 2.75 he has a 2.5 to 3 coming of the turbo. Same set up I got on my FD

Dan_s_young

iTrader: (1)

Yes Manny is bang on. The FD throttle body and FD UIM offers some extra power, but I don't know how much, alot of the reason I went with this setup was the clean look. The FD throttle body is larger than the TII FC.

arghx

iTrader: (3)

FD UIM runners are larger (because the FD has much bigger ports than earlier Rx-7 4 port motors) and so is the TB. The runners are longer than the T2's and the plenum volume is smaller, which is more optimized for mid range power.

The Greddy elbow is actually 70mm (same as 2.75") which matches the size of piping that normally comes on Greddy intercooler kits. I have an FC Greddy elbow and FMIC, and they are 70mm.

mikeric

iTrader: (20)

I don't think that anyone is debating that the FD design in better and 10 years more modern. Rather the question is: What is the actual performance improvement over the FC? Or has anyone dyno'd , performed the swap, and re done the dyno?

Numbers and actual data so that people like me can make an informed decision to perform the swap in order to gain and estimated X horsepower.

Attached are some more pictures that I took in a dark garage this freezing weekend. As you can see, I have made some changed to my piping and I'm now running 3" piping all the way around.

Pictures look like crap, but you get the point.

mikeric

iTrader: (20)

Greddy Elbow 2.75 is about right.

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iTrader: (7)

Appreciate the pictures Mikeric. I found an NPR Intercooler on Ebay for 50 bucks that looks like its in decent shape. I'll see if I can me it work.