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-   -   NB intercoolers? (https://www.miataturbo.net/diy-turbo-discussion-14/nb-intercoolers-24418/)

AbeFM 08-03-2008 02:48 AM

NB intercoolers?
 
What's the best NB intercooler for the front? I got no AC, FM rubbery pipes, and a customer for my Flyin' Miata FMIC.

I was looking at this:
http://www.cxracing.com/mm5/merchant...gory_Code=INCO

But maybe a 3" would fit? There are 3x11 ones I could get... I don't want more than I need, but enough for a healthy 16 psi would make me feel better, esp with these rubber insulating lines.

patsmx5 08-03-2008 02:57 AM

Let's see, I have a 20x12x3 CORE intercooler mounted in my NB and it's invisible with the hood shut. Can't see it as it's behind the A/C condenser and in front of the radiator. No pipes down low and all factory plastic undertray and front bumper support and all that stuff fits with no modifications. Intercooler is mounted upside down such that the charge pipes exit up high and go around the headlights. Pics in my SC thread

patsmx5 08-03-2008 03:05 AM

8 Attachment(s)
Attachment 212080

Attachment 212081




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paul 08-03-2008 08:39 AM

damn thats a badass install Pat

AbeFM 08-03-2008 10:31 AM

No kidding. I can't get him to break his AC system just to take a pic without it, though. :-(


I wonder if it's bigger than I need? At least I'd never wonder if it was "enough", and I wonder how to route the remaining tubing.... But it does seem close, and $100 over FM's 750.... Well. :-) It'll require more investigation.

samnavy 08-03-2008 10:52 AM

Even without the AC, that's a sweet setup... glad I saw this.

It makes routing the IC pipes a snap providing there's room for a 90* coupler at the inlet/outlet against the stock radiator support. I'm very interested in how this is going to turn out with the coldside... please post more pics as progress continues.

What's the stock you used for the mounting brackets... looks like 1/8" stainless? How does the bottom of the radiator get support?

Slimline fans? Which ones?

AbeFM 08-03-2008 10:54 AM

Looks like you'd need a 180 followed by a 90, all pretty sharp. I might concider a narrower IC for my car, with more room for bends.

Remember the old Track Dog set up (FM4 I think) which had part of the rad missing so the charge pipe could go through the rad? Don't imagine it helped cooling much, but it was cool.

samnavy 08-03-2008 11:12 AM

There are several examples out there of guys running a Honda radiator that's only half as wide as ours and advertises the same cooling. Stick that baby in the middle with a large 12" fan??? They're all 2" cores but you can get cheap aliminum ones w/fan for $115.

http://cgi.ebay.com/ebaymotors/KOYO-...spagenameZWDVW

http://cgi.ebay.com/ebaymotors/96-00...spagenameZWDVW

patsmx5 08-03-2008 11:43 AM


Originally Posted by samnavy (Post 291647)
Even without the AC, that's a sweet setup... glad I saw this.

It makes routing the IC pipes a snap providing there's room for a 90* coupler at the inlet/outlet against the stock radiator support. I'm very interested in how this is going to turn out with the coldside... please post more pics as progress continues.

What's the stock you used for the mounting brackets... looks like 1/8" stainless? How does the bottom of the radiator get support?

Slimline fans? Which ones?

Used 1/8 aluminum for mounting the bottom of the condenser and the intercooler. Bent the top condensor mounts over and used them again. Used the factory radiator mount and made new top mounts to space the radiator 1/2" further. I used 5/16" foam to seal and space the heat exchangers from one another. Never drilled a hole in the car, just used existing bolt holes and ran my metal to them. Stock fans for now since they fit but I have a pair of 12's to (ebay special) use if I ever get a bigger radiator.

I'll put more pics when the charge pipes are routed.

compy 08-03-2008 12:02 PM


Originally Posted by AbeFM (Post 291595)
What's the best NB intercooler for the front? I got no AC, FM rubbery pipes, and a customer for my Flyin' Miata FMIC.

I was looking at this:
http://www.cxracing.com/mm5/merchant...gory_Code=INCO

But maybe a 3" would fit? There are 3x11 ones I could get... I don't want more than I need, but enough for a healthy 16 psi would make me feel better, esp with these rubber insulating lines.

That's the IC that I have. It is possibly a little too long for the FM pipes, but you can just barely make it fit.

AbeFM 08-03-2008 07:46 PM

FM said to trim their pipes if need be. I'm still looking at pat's "turn the world of intercooling on it's head" approach of upsidedown intercooler. Though really that quickly leads to an IC with vertical outlets, and that leads to a (not-un-inspired) track-dog-racing-like intercooler set up, which might take the cake. Though I don't know how much trimming I want to do on that cross member.

This looks good, but only 11x11 front face?
http://www.cxracing.com/product_deta...-a/image/1.jpg

http://www.cxracing.com/mm5/graphics...u-ic0047-b.jpg
24x12x3.5, 3.5"
That also looks good, but those 90* bends aren't magic there, so I might as well do them myself on a bigger radius.

Which puts me right back at this one:
http://www.cxracing.com/product_deta...t_images/1.jpg with 11"x12"x3"

Ok, I guess the last is no better than the first. Sigh.

Pat, finish up your install so I can complain about it!

compy 08-03-2008 08:32 PM


Originally Posted by AbeFM (Post 291753)
FM said to trim their pipes if need be.

Yeah but there is obviously a limit on how much you can trim, and with an IC that is 12 inches wider than the FM one, it can be tough.

ZX-Tex 08-03-2008 09:17 PM

I used one similar to your last option above in an NB, but in an over-the-top configuration. The one I used from CXRacing has a 4" thick core.
Core Size: 11"X12"X4"
Overall Size: 18"x12"x4"
3" Inlet & Outlet
4" Core
https://www.miataturbo.net/forum/sho...931#post267931

But I think you said above you already have the FM hoses, which would not work with an over the top of course.

AbeFM 08-03-2008 10:10 PM

Any pics? Is it in the links in your sig?

I might sell off my FM stuff, or some of it. Might not.

ZX-Tex 08-03-2008 11:00 PM


Originally Posted by AbeFM (Post 291793)
Any pics? Is it in the links in your sig?

Yes. Same pictures as in the link I put in my post above. C'mon dude you are not a noob :)

JasonC SBB 08-03-2008 11:30 PM

I really like my TDR i/c.
Abe, have you seen my TDR fan-aiflow vid?

cjernigan 08-03-2008 11:44 PM

Mine is too short, 18x6x3 core 21" wide at the endtanks. Centered outlets. I wish it was 3" taller.

AbeFM 08-04-2008 04:47 PM

^Is three what you think it would take before getting tight on space?



Originally Posted by JasonC SBB (Post 291846)
I really like my TDR i/c.
Abe, have you seen my TDR fan-aiflow vid?

No! Do share!


Originally Posted by ZX-Tex (Post 291828)
Yes. Same pictures as in the link I put in my post above. C'mon dude you are not a noob :)

Heh, a noob is wolf's clothing. :-) Nice looking set up. Seems like the slim fans are not optional. :-) Still, seems like something could be made of it. Did you get a BOV on there?

ZX-Tex 08-04-2008 05:00 PM

Nope it would not work with the stock fans. The slim lines are a must for sure, though there is plenty of room behind them even with the radiator tilted. Yep I have a BOV on there. You can see a tee fitting at the outlet of the compressor right after the 90 deg bend. the BOV is attached to the underside of the tee. It fits with a little room to spare, but not much.

http://lh6.ggpht.com/john.malcolm.ro...JPG?imgmax=640

See sig for BOV details. It is basically a knockoff of a Forge 007.

coastertrav 08-04-2008 07:01 PM

2 Attachment(s)
I used a 24x11x3

http://www.cxracing.com/mm5/merchant...gory_Code=INCO

But I went over the radiator. I have A/C, P/S as well.

Attachment 212063

Attachment 212064


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