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Old 04-22-2014, 12:16 PM   #41
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double post
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Old 04-22-2014, 12:34 PM   #42
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Quote:
Originally Posted by ecc3189 View Post
Not saying any of the setups I've seen on here don't work great, I just want to find the setup that makes the most logical sense in my head from a drag vs. cooling balance. The only reason I've not considered top mount intercoolers is the height of the mass but really an IC and piping isn't that much weight and I'm guessing ThePass lost that weight in cutting the rad support up there
this suggests you haven't seen Savington's setup.
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Old 04-22-2014, 12:36 PM   #43
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this suggests you haven't seen Savington's setup.
well, wheres the link?
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Old 04-22-2014, 12:59 PM   #44
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https://www.miataturbo.net/general-m...airflow-37262/





his intercooler was angled down in front of the radiator, with its own ducting/mouth gathering airflow directly through it, with the radiator getting its own clean air as well.

He had better pics somewhere else that I can't find.


thesnowboarder copied the setup:

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Old 04-22-2014, 05:59 PM   #45
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Quote:
Originally Posted by Braineack View Post
https://www.miataturbo.net/general-m...airflow-37262/

his intercooler was angled down in front of the radiator, with its own ducting/mouth gathering airflow directly through it, with the radiator getting its own clean air as well.

He had better pics somewhere else that I can't find.

thesnowboarder copied the setup:
ah, also a good looking setup! Where does the air go after the oil cooler?

I like that routing since you don't have to do significant fabrication to reposition the radiator
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Old 04-22-2014, 07:10 PM   #46
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I think that whenever Theseus (Savington's car) rises again, the cooling stystem will be much improved over that old setup. That also only worked for a baby-size intercooler, which he moved on from later.

One massive benefit of the V-mount is significantly shorter piping to/from the intercooler (better throttle response as well as few potential failure points w/ less couplers/clamps), which isn't at all achieved with a low-mounted intercooler.

-Ryan

Last edited by ThePass; 04-23-2014 at 02:47 AM.
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Old 04-22-2014, 07:14 PM   #47
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Just occurred to me this is a big hijack of OP's thread, sorry about that.
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Old 04-28-2014, 12:49 AM   #48
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Quote:
Originally Posted by Braineack View Post
https://www.miataturbo.net/general-m...airflow-37262/





his intercooler was angled down in front of the radiator, with its own ducting/mouth gathering airflow directly through it, with the radiator getting its own clean air as well.

He had better pics somewhere else that I can't find.


thesnowboarder copied the setup:

Awesome looking setup!
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Old 05-21-2014, 05:16 AM   #49
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Finished the intercooler hood vent today:





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Radiator Hood Vent-dsc_0040_zps3a0e3e4f.jpg   Radiator Hood Vent-dsc_0042_zps15d244c4.jpg  
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Old 05-21-2014, 09:32 AM   #50
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Looks great! How did you get the smooth bends in the duct?
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Old 05-21-2014, 11:58 AM   #51
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Holy ****. That looks nice!

EDIT: Can we get a lower shot from the front?
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Old 05-21-2014, 02:05 PM   #52
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Quote:
Originally Posted by ecc3189 View Post
Looks great! How did you get the smooth bends in the duct?
Thanks. I have a manual bending brake which I made some alterations to so it could do radiuses instead of just sharp bends, but it only gets the bend half-way close, the duct is essentially hand-formed.

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Holy ****. That looks nice!

EDIT: Can we get a lower shot from the front?
Didn't take a pic from that angle, but I can today.
The duct will look less out of place when I do the vinyl wrap in the next couple weeks.
I might add a couple fins/louvers to the vent today. Have been going back and forth about it in my head..

-Ryan
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Old 05-21-2014, 04:27 PM   #53
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Not that our opinion matters that much, but cut up a couple pieces of cardboard and place them where you're thinking of putting the louvers. Actually that sounds like it might be a little hard.

I think it looks great as it. Especially how you added a hump to the front to help create that low pressure zone. I think this looks as nice as the one that guy with the GSX made, if not nicer. And I thought he did an awesome job.
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Old 05-21-2014, 04:56 PM   #54
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Right, because cutting up cardboard is a lot more difficult than cutting and shaping alumiunum

But there are enough pics floating around from that illustrate what I'm considering:

C7 ZO6


C6R


My thinking is that this helps make flow out of the vent linear, and perhaps also keeps the air as it passes over the vent from tumbling down behind the front edge and obstructing the outward flow from the vent.

But, then there are cases against needing these from the same boys:



Which leads me to thinking that the more sealed, smoother, more controlled the path from heat exchanger out is, the less those louvers are needed. I think I'm seeing a trend that the more turbulent and unmanaged the air is below the vent, then louvres are used - i.e. above wheel wells or on a hood where there isn't perfect ducting up to it. But then I don't think they could hurt, and might help a bit.. many racecars just go with a big hole with a really good duct.

-Ryan
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Radiator Hood Vent-2015-chevrolet-corvette-z06-15.jpg   Radiator Hood Vent-vemp_1004_04_o%252bchevy_corvette_c6r%252bhood_scoops.jpg   Radiator Hood Vent-www.7extrememotorsports.com-364-1292435583.1.jpg  
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Old 05-21-2014, 06:13 PM   #55
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I see what you mean, and I agree with what you're saying. I also heard that the louvered were there to help "smooth" the transition from where it was going, to the higher pressure, faster moving areas of the hood surface.

I think what you've made so far definitely looks good enough and fits into the scheme of what that 3rd vett has and what that awesome looking BMW car was running.
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Old 05-21-2014, 11:48 PM   #56
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Quote:
Originally Posted by ThePass View Post
I think that whenever Theseus (Savington's car) rises again, the cooling stystem will be much improved over that old setup. That also only worked for a baby-size intercooler, which he moved on from later.
It actually works pretty well even with the massive 600hp Precision core that I was using in 2011. I used the same fundamental ducting techniques (IC duct low, radiator duct high) with the larger intercooler and was able to keep IATs under control, which I wasn't able to do with the small IC laid back like that. It's surprisingly how little fresh air you need to feed to the radiator, so long as you duct that small amount of air extremely well.

That IC duct is balleur.
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Old 05-22-2014, 09:46 PM   #57
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Ive been looking around on the internet and found some people making a hood vent for their radiator. Then using a front diffuser behind the splitter to supply air to the intercooler and vents the intercooler air into the engine bay/down the trani tunnel (above the flat underbody).
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Old 05-22-2014, 10:11 PM   #58
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That's a pretty cool idea. Packaging may be tough though.

Street tuning commenced today. 7-mount works almost too well, might remove one of the fans because I don't think I'll ever need two. And IAT's were 5-6* above ambient during highway pulls. Win.

-Ryan
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Old 05-22-2014, 10:39 PM   #59
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Quote:
Originally Posted by ThePass View Post
That's a pretty cool idea. Packaging may be tough though.

Street tuning commenced today. 7-mount works almost too well, might remove one of the fans because I don't think I'll ever need two. And IAT's were 5-6* above ambient during highway pulls. Win.

-Ryan
I know what you mean, very tight place. https://www.miataturbo.net/race-prep...8/#post1133794
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Old 05-23-2014, 01:05 PM   #60
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Quote:
Originally Posted by ThePass View Post
That's a pretty cool idea. Packaging may be tough though.

Street tuning commenced today. 7-mount works almost too well, might remove one of the fans because I don't think I'll ever need two. And IAT's were 5-6* above ambient during highway pulls. Win.

-Ryan
put your fans on a manual switch. You shouldn't need them on unless you're in the grid sitting anyway.
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