extraction hood
#262
Elite Member
iTrader: (11)
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,360
Total Cats: 43
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
![](http://www.jugrnot.com/CRW_8273.jpg)
I like this hood a lot, wish I would've grabbed a closer shot of it. Looked pretty good.. just had to be careful where you parked the car cause you could steal the BOV through the openings.. lol
#263
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
the biggest issue is the center spine and whether it will intersect the perimeter of the miata hood bump
this one would fit for sure... but it's not as pretty and has smaller holes
this one would fit for sure... but it's not as pretty and has smaller holes
![](http://www.drivenvisions.com/plugins/MivaMerchants/graphics/00000001/size.jpg)
#264
Boost Czar
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/admin.png)
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,688
Total Cats: 4,113
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
exactly, it's not pretty. I'm considering just cutting the hood and making my own. I dunno yet. I'm still pondering, but I'd like to do something over this holiday.
I think I'm going to cheap out, just get a can on bondo and do something like this, in the same area I've posted about above.
I think I'm going to cheap out, just get a can on bondo and do something like this, in the same area I've posted about above.
![](http://www.flyinmiata.com/projects/OTC/images/OTC_vent_top.jpg)
#266
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
exactly, it's not pretty. I'm considering just cutting the hood and making my own. I dunno yet. I'm still pondering, but I'd like to do something over this holiday.
I think I'm going to cheap out, just get a can on bondo and do something like this, in the same area I've posted about above.
![](http://www.flyinmiata.com/projects/OTC/images/OTC_vent_top.jpg)
I think I'm going to cheap out, just get a can on bondo and do something like this, in the same area I've posted about above.
![](http://www.flyinmiata.com/projects/OTC/images/OTC_vent_top.jpg)
Any measurements on where to place those vents?
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
#268
Boost Czar
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/admin.png)
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,688
Total Cats: 4,113
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I'm not going to weld. I have a ton of sheet aluminum that I'll make walls with and rivet, then I'll make something for the air foil and then smooth it all down with body filler.
I suspect it will look something like this:
![](http://www.boostedmiata.com/random/hood_vent1.JPG)
that's being optimistic if I can cut that well....however, with an air nibbler, it should look fairly clean.
I suspect it will look something like this:
that's being optimistic if I can cut that well....however, with an air nibbler, it should look fairly clean.
#272
Boost Czar
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/admin.png)
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,688
Total Cats: 4,113
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I'm fairly certain he is talking about adding a lip to the front of the ducts to create an aero affect and lower the pressure zone even more in that location, thus increasing its effectiveness.
split, perfect. i forgot you did that. that's exactly what i'll do. what did you cut it with?
#273
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I agree- a single hole, no divide. I may just do the same. Could've done it already given all the time wasted looking at ready made extractors. I think I'll resort to some kind of black treatment too- something to disguise/detract from the hole, because I know it's going to be ugly on the first round.
dott- you need to trim the bottom line of your bumper hole to match the OE recessed contour line so it doesn't look bowed up from the front. And you'll get more air.
I know you're always looking for ways to make your car prettier.
dott- you need to trim the bottom line of your bumper hole to match the OE recessed contour line so it doesn't look bowed up from the front. And you'll get more air.
![wink](https://www.miataturbo.net/images/smilies/wink.gif)
#274
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I kinda like the way Brain photoshopped his. Almost looks like it was supposed to be there.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
#275
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Now is there anything that can be done to extract heat from the turbo area?
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
#278
Boost Czar
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/admin.png)
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,688
Total Cats: 4,113
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
looks like where ever the bracing behind the hood had an opening it was cut. the problem there is the lack of airflow. my goal is to extract as much flow from the radiator as possible. without the holes having any sort means to route the air up through them, they probably only function well at idle. otherwise at speed, the airflow over the top of them will prevent any air to actually escape.
#280
Boost Czar
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/admin.png)
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,688
Total Cats: 4,113
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
here's my final decision.
![](http://www.boostedmiata.com/random/hood_vent_template.jpg)
i plan the cut out a rectangle and literally build this separately from the hood & fiberglass solid, then laying down on top, rivet, smooth with body filler, and paint.
![](http://www.boostedmiata.com/random/hood_vent_template.jpg)
i plan the cut out a rectangle and literally build this separately from the hood & fiberglass solid, then laying down on top, rivet, smooth with body filler, and paint.