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-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   Fav ebay intercooler kit? update with pics (https://www.miataturbo.net/diy-turbo-discussion-14/fav-ebay-intercooler-kit-update-pics-55602/)

flounder 02-21-2011 08:47 PM

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Here's a couple shots.

FartTroll 02-21-2011 10:39 PM

Looks good. I'm curious, how is it mounted?

flounder 02-22-2011 07:01 PM


Originally Posted by FartTroll (Post 692792)
Looks good. I'm curious, how is it mounted?

Well FartTroll, it isn't. :)

I plan on adding a steel bar across the each lower radiator support and drilling out 3 holes to mount the IC.

flounder 02-26-2011 03:02 PM

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Got the angle steel sized and drilled for mounting. I decided i'm going to weld each core support bracket to the steel instead of trying to bolt it up. It's mocked up in the pics, but that is exactly where it will sit when completed.
I still have to cut out space on each side of the airdam for the piping

With everything back together the ic should fill up the entire mouth of the bumper.

Btw, where's a good place to find 90degree coupler reducers? I need a 2.50-2.25in and a 2.25-2.00in.

triple88a 02-26-2011 04:00 PM

Do you need the reducers in metal specifically or can you use silicone? I personally like the gradual 90 degree reducers. Basically a 90 degree elbow that gradually goes from the size you want to whatever.

I believe most here shop at silicone intakes but let them confirm.

flounder 02-26-2011 04:38 PM


Originally Posted by triple88a (Post 694803)
Do you need the reducers in metal specifically or can you use silicone? I personally like the gradual 90 degree reducers. Basically a 90 degree elbow that gradually goes from the size you want to whatever.

I believe most here shop at silicone intakes but let them confirm.

Yeah, silicone is what i'd like to use. Just for the compressor and the throttlebody openings. The IC and piping is all 2.25in as well as the 8 straight couplers I already have.

I tried ebay but very limited in stuff that goes to 2.25in.

triple88a 02-26-2011 04:41 PM

yeah most are 4"+ for them mad VTEC people

As i said siliconeintakes.com has the stuff u want...black, blue and red...
http://www.siliconeintakes.com/produ...cb4fb1aebec8c9

http://www.siliconeintakes.com/produ...cb4fb1aebec8c9

flounder 02-26-2011 04:44 PM


Originally Posted by triple88a (Post 694821)
As i said siliconeintakes.com has the 2-2.25 u want...black, blue and red...
http://www.siliconeintakes.com/produ...cb4fb1aebec8c9

http://www.siliconeintakes.com/produ...cb4fb1aebec8c9

Sorry, I missed that. :) Thanks for the link, just bought them both and hopefully they'll be here by mid week.

1stproject 02-28-2011 10:35 PM

Get some pics up!

flounder 03-01-2011 06:59 PM


Originally Posted by 1stproject (Post 695559)
Get some pics up!

It's coming.

I just finally got to weld the brackets today. I work 50+ hrs a week so i'm mostly working on this in the weekend. Plus, I still have to wait for the 2 reducers to come in the mail.

flounder 03-05-2011 08:43 PM

11 Attachment(s)
Ok, got some more work done today. Everything is cut and sized I just have to flare all the ends before I clamp them.

The compressor inlet is a work in progress. Currently I'm still using the begi steup until I think of something different. I still have to find a spot for the bypass valve too.

Sorry for the shitty quality pics, and yes, that is a pink barbie jeep in my garage. No you can't borrow it.

poobs 03-05-2011 09:27 PM

Good work!!!

marcoSTEEZ 03-06-2011 01:32 AM

I like how the intercooler doesn't hang too low. It is tucked up nicely near the middle of the radiator. Not obvious or flashy. Nice work, waiting for pics of bumper mounted.

flounder 03-06-2011 05:11 PM

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Here are a couple pics of the bumper installed. I can't for the life of me find my camera so cell phone is all I got. Fitment is good, totally centered and looks like it's meant to be there. I have a screen that will go in front of it but it needs to be cleaned and painted black first.

flounder 03-26-2011 09:45 PM

Ok, She's all done. Don't have any new pics but some questions.

Everything is tight and I ended up trying to use my begi sourced bypass valve without recirc by using a check valve. I bought a 2'' to 2.75'' reducer and installed the maf directly on the compressor inlet.

First thing I noticed was that there was a hell of a lot of pressure drop from previously. I was only seeing like 4 psi max where before I was maintaining a steady 7-8psi. (reading from manifold). Second, even with the check valve, the idle is crap. From some testing, I found that if I let the rpms drop below
2k before depressing the clutch it'll idle fine. If I depress the clutch anywhere above 2k when coming to a stop the car almost stalls and will barely stay running at 500rpms. Third, now when approaching 0 vac/boost the car runs super rich (10-1) and falls on it's face. Fourth, it's super jerky on/off when coming off boost. I experienced none of these issues before the IC install.

There is some good news though too. After making sure all of my clamps were tight, I went ahead and turned up the boost to 9 psi. My god, does it feel amazing, and my afr's are great (11.1-1) at 75%dc.

I figure biting the bullet and recirculating will take care of my idle issues and installing an o2 clamp should take care of the jerkiness i'm getting, but what about going rich at 0 vac? I am adding zero fuel at that point with the emb, I think it's got something to do with that check valve?

Any thing I'm missing that will help? I'll get some pics up tomorrow.

triple88a 03-26-2011 11:13 PM

Air coming out of the bov into atmosphere letting out metered air would be my guess. I say pull the bov, plug the hole and see how it goes.

flounder 03-27-2011 10:34 AM

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Originally Posted by triple88a (Post 706784)
Air coming out of the bov into atmosphere letting out metered air would be my guess. I say pull the bov, plug the hole and see how it goes.

That's an idea. Kind of afraid too with that much psi though, may turn it down to 5-6 for testing.

On another note, I love the way the depowered rack feels!

Here's some more pics sans bumper cover. I was planning on using a small filter for the breather but maybe that's another reason i'm having issues with stalling and idle quality? More testing to follow.:idea:

triple88a 03-29-2011 01:17 AM

What a/f are u getting at idle?

flounder 03-29-2011 06:41 PM

Pretty similar to what I was previously, about 15:1 idle, 14.5-15.5 cruise.

flounder 03-30-2011 09:25 PM

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Problem solved, thanks to TurboTim:bigtu:

I should have known better than to put the maf so close to the turbulent turbo inlet. It caused all sorts of droopy idle shenanigans so I came up with this setup. Here's a before/after.


The only issue now is for some reason I'm getting what sounds like compressor surge on my upshifts where before it sounded like a normal whooshing bov sound. Me thinks it's the check valve...

If anyone is wondering, total cost from start to finish was about $275 bucks.


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